Chapter 14 Association.

After discrimination, association! Already in the last chapter I have had to invoke¹, in order to explain the improvement of certain discriminations by practice, the 'association' of the objects to be distinguished³, with other more widely differing ones. It is obvious that the advance of our knowledge must consist of both operations; for objects at first appearing as wholes are analyzed⁴ into parts, and objects appearing separately are brought together and appear as new compound wholes to the mind. Analysis and synthesis are thus the incessantly⁵ alternating mental activities, a stroke of the one preparing the way for a stroke of the other, much as, in walking, a man's two legs are alternately brought into use, both being indispensable for any orderly advance.

The manner in which trains of imagery and consideration follow each other through our thinking, the restless flight of one idea before the next, the transitions our minds make between things wide as the poles asunder⁶, transitions which at first sight startle us by their abruptness⁸, but which, when scrutinized⁹ closely, often reveal intermediating links of perfect naturalness and propriety¹¹ -- all this magical, imponderable streaming has from time immemorial excited the admiration¹² of all whose attention happened to be caught by its omnipresent mystery. And it has furthermore challenged the race of philosophers to banish¹³ something of the mystery by formulating¹⁴ the process in simpler terms. The problem which the philosophers have set themselves is that of ascertaining¹⁶ principles of connection between the thoughts which thus appear to sprout¹⁷ one out of the other, whereby their peculiar¹⁸ succession or coexistence may be explained.

But immediately an ambiguity²⁰ arises: which sort of connection is meant? connection thought-of, or connection between thoughts? These are two entirely²¹ different things, and only in the case of one of them is there any hope of finding 'principles.' The jungle of connections thought of can never be formulated²⁵ simply. Every conceivable connection may be thought of -- of coexistence, succession, resemblance, contrast, contradiction, cause and effect, means and end, genus and species, part and whole, substance and property, early and late, large and small, landlord and tenant²⁶, master and servant, -- Heaven knows what, for the list is literally²⁷ inexhaustible. The only simplification which could possibly be aimed at would be the reduction of the relations to a smaller number of types, like those which such authors as Kant and Renouvier call the 'categories' of the understanding.2 According as we followed one category or another we should sweep, with our thought, through the world in this way or in that. And all the categories would be logical, would be relations of reason. They would fuse the items into a continuum. Were this the sort of connection sought between one moment of our thinking and another, our chapter might end here. For the only summary description of these infinite possibilities of transition, is that they are all acts of reason, and that the mind proceeds from one object to another by some rational path of connection. The trueness of this formula is only equalled by its sterility³⁰, for psychological purposes. Practically it amounts to simply referring the inquirer to the relations between facts or things, and to telling him that his thinking follows them.

But as a matter of fact, his thinking only sometimes follows them, and these so-called 'transitions of reason' are far from being all alike reasonable. If pure thought runs all our trains, why should she run some so fast and some so slow, some through dull flats and some through gorgeous scenery, some to mountain-heights and jewelled mines, others through dismal³¹ swamps and darkness? -- and run some off the track altogether, and into the wilderness³² of lunacy? Why do we spend years straining after a certain scientific or practical problem, but all in vain -- thought refusing to evoke³³ the solution we desire? And why, some day, walking in the street with our attention miles away from that quest, does the answer saunter into our minds as carelessly as if it had never been called for -- suggested, possibly, by the flowers on the bonnet³⁴ of the lady in front of us, or possibly by nothing that we can discover? If reason can give us relief then, why did she not do so earlier?

The truth must be admitted that thought works under conditions imposed ab extra. The great law of habit itself -- that twenty experiences make us recall a thing better than one, that long indulgence in error makes right thinking almost impossible -- seems to have no essential foundation in reason. The business of thought is with truth -- the number of experiences ought to have nothing to do with her hold of it; and she ought by right to be able to hug it all the closer, after years wasted out of its presence. The contrary arrangements seem quite fantastic and arbitrary, but nevertheless are part of the very bone and marrow³⁵ of our minds. Reason is only one out of a thousand possibilities in the thinking of each of us. Who can count all the silly fancies, the grotesque³⁶ suppositions, the utterly³⁷ irrelevant³⁸ reflections he makes in the course of a day? Who can swear that his prejudices and irrational³⁹ beliefs constitute a less bulky part of his mental furniture than his clarified opinions? It is true that a presiding arbiter⁴⁰ seems to sit aloft in the mind, and emphasize the better suggestions into permanence, while it ends by droopping out and leaving unrecorded the confusion. But this is all the difference. The mode of genesis of the worthy⁴¹ and the worthless seems the same. The laws of our actual thinking, of the cogitatum, must account alike for the bad and the good materials on which the arbiter has to decide, for wisdom and for folly⁴². The laws of the arbiter, of the cogitandum, of what we ought to think, are to the former as the laws of ethics⁴³ are to those of history. Who but an hegelian historian ever pretended that reason in action was per se a sufficient explanation of the political changes in Europe?

There are, then, mechanical conditions on which thought depends, and which, to say the least, determine the order in which is presented the content or material for her comparisons, selections, and decisions. It is a suggestive fact that Locke, and many more recent Continental⁴⁴ psychologists, have found themselves obliged to invoke a mechanical process to account for the aberrations⁴⁵ of thought, the obstructive preprocessions, the frustrations⁴⁶ of reason. This they found in the law of habit, or what we now call Association by Contiguity⁴⁷. But it never occurred to these writers that a process which could go the length of actually producing some ideas and sequences in the mind might safely be trusted to produce others too; and that those habitual⁴⁸ associations which further thought may also come from the same mechanical source as those which hinder it. Hartley accordingly suggested habit as a sufficient explanation of all connections of our thoughts, and in so doing planted himself squarely upon the properly psychological aspect of the problem of connection, and sought to treat both rational and irrational connections from a single point of view. The problem which he essayed, however lamely⁴⁹, to answer, was that of the connection between our psychic⁵⁰ states considered purely⁵¹ as such, regardless of the objective connections of which they might take cognizance. How does a man come, after thinking of A, to think of B the next moment? or how does he come to think A and B always together? These were the phenomena⁵² which Hartley undertook to explain by cerebral⁵³ physiology⁵⁴. I believe that he was, in many essential respects, on the right track, and I propose simply to revise his conclusions by the aid of distinctions which he did not make.

But the whole historic doctrine⁵⁵ of psychological association is tainted⁵⁶ with one huge error -- that of the construction of our thoughts out of the compounding of themselves together of immutable⁵⁷ and incessantly recurring⁵⁸ 'simple ideas.' It is the cohesion⁶⁰ of these which the 'principles of association' are considered to account for. In Chapters VI and IX we saw abundant reasons for treating the doctrine of simple ideas or psychic atoms as mythological⁶¹; and, in all that follows, our problem will be to keep whatever truths the associationist doctrine has caught sight of without weighing it down with the untenable incumbrance that the association is between 'ideas.'

Association, so far as the word stands for an effect, is between THINGS THOUGHT OF-- it is THINGS, not ideas, which are associated in the mind. We ought to talk of the association of objects, not of the association of ideas. And so far as association stands for a cause, it is between processes in the brain -- it is these which, by being associated in certain ways, determine what successive objects shall be thought. Let us proceed towards our final generalization⁶² by surveying first a few familiar facts.

The laws of motor habit in the lower centres of the nervous system are disputed by no one. A series of movements repeated in a certain order tend to unroll themselves with peculiar ease in that order for ever afterward⁶³. Number one awakens⁶⁴ number two, and that awakens number three, and so on, till the last is produced. A habit of this kind once become inveterate⁶⁶ may go on automatically. And so it is with the objects with which our thinking is concerned. With some persons each note of a melody, heard but once, will accurately⁶⁷ revive in its proper sequence. Small boys at school learn the inflections of many a Greek noun, adjective, or verb, from the reiterated⁶⁸ recitations of the upper classes falling on their ear as they sit at their desks. All this happens with no voluntary effort on their part and with no thought of the spelling of the words. The doggerel⁶⁹ rhymes which children use in their games, such as the formula

"Ana mana mona mike
Barcelona bona strike,"

used for 'counting out,' form another familiar example of things heard in sequence cohering⁷⁰ in the same order in the memory.

In touch we have a smaller number of instances, though probably every one who bathes himself in a certain fixed⁷¹ manner is familiar with the fact that each part of his body over which the water is squeezed from the sponge awakens a premonitory tingling⁷² consciousness in that portion of skin which is habitually⁷³ the next to be deluged⁷⁴. Tastes and smells form no very habitual series in our experience. But even if they did, it is doubtful whether habit would fix the order of their reproduction quite so well as it does that of other sensations. In vision, however, we have a sense in which the order of reproduced things is very nearly as much influenced by habit as is the order of remembered sounds. Rooms, landscapes, buildings, pictures, or persons with whose look we are very familiar, surge up before the mind's eye with all the details of their appearance complete, so soon as we think of any one of their component⁷⁵ parts. Some persons, in reciting printed matter by heart, will seem to see each successive word, before they utter it, appear in its order on an imaginary page. A certain chess-player, one of those heroes who train themselves to play several games at once blindfold⁷⁶, is reported to say that in bed at night after a match the games are played all over again before his mental eye, each board being pictured as passing in turn through each of its successive stages. In this case, of course, the intense previous voluntary strain of the power of visual representation is what facilitated the fixed order of revival⁷⁷.

Association occurs as amply between impressions of different senses as between homogeneous sensations. Seen things and heard things cohere⁷⁸ with each other, and with odors and tastes, in representation, in the same order in which they cohered⁷⁹ as impressions of the outer world. Feelings of contact reproduce similarly the sights, sounds, and tastes with which experience has associated them. In fact, the 'objects' of our perception, as trees, men, houses, microscopes, of which the real world seems composed, are nothing but clusters of qualities which through simultaneous stimulation⁸¹ have so coalesced⁸² that the moment one is excited actually it serves as a sign or cue for the idea of the others to arise. Let a person enter his room in the dark and grope among the objects there. The touch of the matches will instantaneously recall their appearance. If his hand comes in contact with an orange on the table, the golden yellow of the fruit, its savor⁸³ and perfume will forthwith shoot through his mind. In passing the hand over the sideboard or in jogging the coal-scuttle with the foot, the large glossy⁸⁵ dark shape of the one and the irregular blackness of the other awaken⁶⁵ like a flash and constitute what we call the recognition of the objects. The voice of the violin faintly echoes through the mind as the hand is laid upon it in the dark, and the feeling of the garments or draperies which may hang about the room is not understood till the look correlative to the feeling has in each case been resuscitated⁸⁶. Smells notoriously have the power of recalling the other experiences in whose company they were wont⁸⁷ to be felt, perhaps long years ago; and the voluminous emotional character assumed by the images which suddenly pour into the mind at such a time forms one of the staple⁸⁸ topics of popular psychologic wonder --

"Lost and gone and lost and gone!
A breath, a whisper -- some divine farewell --
Desolate⁸⁹ sweetness -- far and far away."

We cannot hear the din²³ of a railroad train or the yell of its whistle, without thinking of its long, jointed⁹⁰ appearance and its headlong speed, nor catch a familiar voice in a crowd without recalling, with the name of the speaker, also his face. But the most notorious and important case of the mental combination of auditory with optical impressions originally experienced together is furnished by language. The child is offered a new and delicious fruit and is at the same time told that it is called a 'fig⁹¹.' Or looking out of the window he exclaims, "What a funny horse!" and is told that it is a 'piebald' horse. When learning his letters, the sound of each is repeated to him whilst its shape is before his eye. Thenceforward, long as he may live, he will never see a fig, a piebald horse, or a letter of the alphabet without the name which he first heard in conjunction with each clinging to it in his mind; and inversely⁹² he will never hear the name without the faint arousal of the image of the object.3
The Rapidity of Association.

Reading exemplifies this kind of cohesion even more beautifully. It is an uninterrupted and protracted⁹⁴ recall of sounds by sights which have always been coupled with them in the past. I find that I can name six hundred letters in two minutes on a printed page. Five distinct acts of association between sight and sound (not to speak of all the other processes concerned) must then have occurred in each second in my mind. In reading entire words the speed is much more rapid. Valentin relates in his Physiology that the reading of a single page of the proof, containing 2629 letters, took him 1 minute and 32 seconds. In this experiment each letter was understood in 1/28 of a second, but owing to the integration⁹⁷ of letters into entire words, forming each a single aggregate⁹⁸ impression directly associated with a single acoustic⁹⁹ image, we need not suppose as many as 28 separate associations in a sound. The figures, however, suffice to show with what extreme rapidity an actual sensation recalls its customary associates. Both in fact seem to our ordinary attention to come into the mind at once.

The time-measuring psychologists of recent days have tried their hand at this problem by more elaborate methods. Galton, using a very simple apparatus¹⁰⁰, found that the sight of an unforeseen word would awaken an associated 'idea' in about 5/6 of a second.4 Wundt next made determinations in which the 'cue' was given by single-syllabled words called out by an assistant. The person experimented on had to press a key as soon as the sound of the word awakened¹⁰¹ an associated idea. Both word and reaction were chronographically registered, and the total time-interval between the two amounted, in four observers, to 1.009, 0.896, 1.037, and 1.154 seconds respectively. From this the simple physiological¹⁰² reaction-time and the time of merely identifying the word's sound (the 'apperception-time,' as Wundt calls it) must be subtracted, to get the exact time required for the associated idea to arise. These times were separately determined¹⁰⁴ and subtracted. The difference, called by Wundt the association-time, amounted, in the same four persons, to 706, 723, 752, and 874 thousandths of a second respectively.5 The length of the last figure is due to the fact that the person reacting (President G. S. Hall) was an American, whose associations with German words would naturally be slower than those of natives. The shortest association-time noted¹⁰⁵ was when the word 'Sturm' suggested to Prof. Wundt the word 'Wind' in 0.341 second.6 -- Finally, Mr. Cattell made some interesting observations upon the association-time between the look of letters and their names. "I pasted letters," he says, "on a revolving¹⁰⁶ drum, and determined at what rate they could be read aloud as they passed by a slit¹⁰⁷ in a screen." He found it to vary according as one, or more than one letter, was visible at a time through the slit, and gives half a second as about the time which it takes to see and name a single letter seen alone.

"When two or more letters are always in view, not only do the processes of seeing and naming overlap¹⁰⁸, but while the subject is seeing one letter he begins to see the ones next following, and so can read them more quickly. Of the nine persons experimented on, four could read the letters faster when five were in view at once, but were not helped by a sixth letter; three were not helped by a fifth, and two not by a fourth letter. This shows that while one idea is in the centre, two, three, or four additional ideas may be in the background of consciousness. The second letter in view shortens the time about 1/40, the third 1/60, the fourth 1/100, the fifth 1/200 sec.

"I find it takes about twice as long to read (aloud, as fast as possible) words which have no connection as words which make sentences, and letters which have no connection as letters which make words. When the words make sentences and the letters words, not only do the processes of seeing and naming overlap, but by one mental effort the subject can recognize a whole group of words or letters, and by one will-act choose the motions to be made in naming, so that the rate at which the words and letters are read is really only limited by the maximum rapidity at which the speech-organs can be moved. As the result of a large number of experiments, the writer found that he had read words not making sentences at the rate of 1/4 sec., words making sentences (a passage from Swift) at the rate of 1/8 sec., per word. . . . The rate at which a person reads a foreign language is proportional to his familiarity with the language. For example, when reading as fast as possible the writer's rate was, English 138, French 167, German 250, Italian 327, Latin 434, and Greek 484; the figures giving the thousandths of a second taken to read each word. Experiments made on others strikingly confirm these results. The subject does not know that he is reading the foreign language more slowly than his own; this explains why foreigners seem to talk so fast. This simple method of determining a person's familiarity with a language might be used in school examinations.

"The time required to see and name colors and pictures of objects was determined in the same way. The time was found to be about the same (over 1/2 sec.) for colors as for pictures, and about twice as long as for words and letters. Other experiments I have made show that we can recognize a single color or picture in a slightly shorter time than a word or letter, but take longer to name it. This is because, in the case or words and letters, the association between the idea and name has taken place so often that the process has become automatic, whereas in the case of colors and pictures we must by a voluntary effort choose the name.7

In later experiments Mr. Cattell studied the time for various associations to be performed, the termini (i.e., cue and answer) being words. A word in one language was to call up its equivalent in another, the name of an author the tongue in which he wrote, that of a city the country in which it lay, that of a writer one of his works, etc. The mean variation from the average is very great in all these experiments; and the interesting feature which they show is the existence of certain constant differences between associations of different sorts. Thus:

From country to city, Mr. C.'s time was 0.340 sec. 
"     season   " month    "         "      "    0.399 
"  language  " author,   "        "       "    0.523 
"    author    " work,     "         "      "    0.596

The average time of two observers, experimenting on eight different types of association, was 0.420 and 0.436 sec. respectively.⁸ The very wide range of variation is undoubtedly¹⁰⁹ a consequence of the fact that the words used as cues, and the different types of association studied, differ much in their degree of familiarity.

"For example, B is a teacher of mathematics; C has busied himself more with literature. C knows quite as well as B that 7 + 5 = 12, yet he needs 1/10 of a second longer to call it to mind; B knows quite as well as C that Dante was a poet, but needs 1/20 of a second longer to think of it. Such experiments lay bare the mental life in a way that is startling and not always gratifying."


The Law of Contiguity.

Time-determinations apart, the facts we have run over can all be summed up in the simple statement that objects once experienced together tend to become associated in the imagination, so that when any one of them is thought of, the others are likely to be thought of also, in the same order of sequence or coexistence as before. This statement we may name the law of mental association by contiguity.10

I preserve this name in order to depart as little as possible from tradition, although Mr. Ward's designation of the process as that of association by continuity11 or Wundt's as that of external association (to distinguish it from the internal association which we shall presently learn to know under the name of association by similarity)12 are perhaps better terms. Whatever we name the law, since it expresses merely a phenomenon of mental habit, the most natural way of accounting¹¹⁰ for it is to conceive it as a result of the laws of habit in the nervous system; in other words, it is to ascribe it to a physiological cause. If it be truly a law of those nerve-centres which co-ordinate sensory¹¹¹ and motor processes together that paths once used for coupling any pair of them are thereby¹¹² made more permeable, there appears no reason why the same law should not hold good of ideational centres and their coupling-paths as well.13 Parts of these centres which have once been in action together will thus grow so linked that excitement at one point will irradiate through the system. The chances of complete irradiation will be strong in proportion as the previous excitements have been frequent, and as the present points excited afresh are numerous. If all points were originally excited together, the irradiation may be sensibly simultaneous throughout the system, when any single point or group of points is touched off. But where the original impressions were successive -- the conjugation of a Greek verb, for example -- awakening¹¹³ nerve-tracts¹¹⁴ in a definite order, they will now, when one of them awakens, discharge into each other in that definite order and in no other way.

The reader will recollect¹¹⁵ all that has been said of increased tension in nerve-tracts and of the summation¹¹⁶ of stimuli¹¹⁷ (p. 82 ff.). We must therefore suppose that in these ideational tracts as well as elsewhere, activity may be awakened, in any particular locality, by the summation therein of a number of tensions, each incapable¹¹⁸ alone of provoking an actual discharge. Suppose for example the locality M to be in functional¹¹⁹ continuity with four other localities, K, L, N, and O. Suppose moreover that on four previous occasions it has been separately combined with each of these localities in a common activity. M may then be indirectly¹²⁰ awakened by any cause which tends to awaken either K, L, N, or O. But if the cause which awakens K, for instance, be so slight as only to increase its tension without arousing it to full discharge, K will only succeed in slightly increasing the tension of M. But if at the same time the tensions of L, N, and O are similarly increased, the combined effects of all four upon M may be so great as to awaken an actual discharge in this latter locality. In like manner if the paths between M and the four other localities have been so slightly excavated¹²¹ by previous experience as to require a very intense excitement in either of the localities before M can be awakened, a less strong excitement than this in any one will fail to reach M. But if all four at once are mildly excited, their compound effect on M may be adequate to its full arousal.

The psychological law of association of objects thought of through their previous contiguity in thought or experience would thus be an effect, within the mind, of the physical fact that nerve-currents propagate themselves easiest through those tracts of conduction which have been already most in use. Descartes and Locke hit upon this explanation, which modern science has not yet succeeded in improving.

"Custom," says Locke, "settles habits of thinking in the understanding, as well as of determining in the will, and of motions in the body; all which seem to be but trains of motion in the animal spirits [by this Locke meant identically what we understand by neural¹²² processes] which, once set agoing, continue in the same steps they have been used to, which by often treading are worn into a smooth path, and the motion in it becomes easy and, as it were, natural."14

Hartley was more thorough in his grasp of the principle. The sensorial nerve-currents, produced when objects are fully⁹³ present, were for him 'vibrations¹²³,' and those which produce ideas of objects in their absence were 'miniature vibrations.' And he sums up the cause of mental association in a single formula by saying:

"Any vibrations, A, B, C, etc., by being associated together a sufficient Number of Times, get such a Power over a, b, c, etc., the corresponding Miniature Vibrations, that any of the Vibrations A, when impressed alone, shall be able to excite b, c, etc., the Miniatures of the rest."15

It is evident that if there be any law of neural habit similar to this, the contiguities¹²⁴, coexistences, and successions, met with in outer experience, must inevitably¹²⁵ be copied more or less perfectly¹²⁶ in our thought. If A B C D E be a sequence of outer impressions (they may be events or they may be successively experienced properties of an object) which once gave rise to the successive 'ideas,' a b c d e, then no sooner will A impress us again and awaken the a, than b c d e will arise as ideas even before B C D E have come in as impressions. In other words, the order of impressions will the next time be anticipated; and the mental order will so far forth⁸⁴ copy the order of the outer world. Any object when met again will make us expect its former concomitants, through the overflowing¹²⁷ of its brain-tract⁹⁶ into the paths which lead to theirs. And all these suggestions will be effects of a material law.

Where the associations are, as here, of successively appearing things, the distinction I made at the outset of the chapter, between a connection thought of and a connection of thoughts, is unimportant. For the connection thought of is concomitance or succession; and the connection between the thoughts is just the same. The 'objects' and the 'ideas' fit into parallel schemes, and may be described in identical language, as contiguous things tending to be thought again together, or contiguous ideas tending to recur⁵⁹ together.

Now were these cases fair samples of all association, the distinction I drew might well be termed a Spitzfindigkeit or piece of pedantic¹²⁹ hair-splitting, and be dropped. But as a matter of fact we cannot treat the subject so simply. The same outer object may suggest either of many realities formerly¹³⁰ associated with it -- for in the vicissitudes¹³¹ of our outer experience we are constantly liable to meet the same thing in the midst of differing companions -- and a philosophy of association that should merely say that it will suggest one of these, or even of that one of them which it has oftenest accompanied, would go but a very short way into the rationale of the subject. This, however, is about as far as most associationists have gone with their 'principle of contiguity.' Granted an object, A, they never tell us beforehand which of its associates it will suggest; their wisdom is limited to showing, after it has suggested a second object, that that object was once an associate. They have had to supplement their principle of Contiguity by other principles, such as those of Similarity and Contrast, before they could begin to do justice to the richness of the facts.
The Elementary Law of Association.

I shall try to show, in the pages which immediately follow, that there is no other elementary causal law of association than the law of neural habit. All the materials of our thought are due to the way in which one elementary process of the cerebral hemispheres tends to excite whatever other elementary process it may have excited at some former time. The number of elementary processes at work, however, and the nature of those which at any time are fully effective in rousing the others, determine the character of the total brain-action, and, as a consequence of this, they determine the object thought of at the time. According as this resultant object is one thing or another, we call it a product of association by contiguity or of association by similarity, or contrast, or whatever other sorts we may have recognized as ultimate. Its production, however, is, in each one of these cases, to be explained by a merely quantitative¹³² variation in the elementary brain-processes momentarily at work under the law of habit, so that psychic contiguity, similarity, etc., are derivatives¹³³ of a single profounder kind of fact.

My thesis, stated thus briefly¹³⁴, will soon become more clear; and at the same time certain disturbing factors, which co-operate with the law of neural habit, will come to view.

Let us then assume as the basis of all our subsequent reasoning this law: When two elementary brain-processes have been active together or in immediate¹⁹ succession, one of them, on reoccurring, tends to propagate its excitement into the other.

But, as a matter of fact, every elementary process has found itself at different times excited in conjunction with many other processes, and this by unavoidable outward causes. Which of these others it shall awaken now becomes a problem. Shall b or c be aroused next by the present a? We must make a further postulate¹³⁵, based, however, on the fact of tension in nerve-tissue, and on the fact of summation of excitements, each incomplete or latent in itself, into an open resultant.16 The process b, rather than c, will awake, if in addition to the vibrating tract a some other tract d is in a state of sub-excitement, and formerly was excited with b alone and not with a. In short, we may say:

The amount of activity at any given point in the brain-cortex is the sum of the tendencies of all other points to discharge into it, such tendencies being proportionate (1) to the number of times the excitement of each other point may have accompanied that of the point in question; (2) to the intensity¹³⁶ of such excitements; and (3) to the absence of any rival point functionally¹³⁷ disconnected with the first point, into which the discharges might be diverted.

Expressing the fundamental law in this most complicated way leads to the greatest ultimate simplification. Let us, for the present, only treat of spontaneous trains of thought and ideation, such as occur in revery or musing¹³⁸. The case of voluntary thinking toward a certain end shall come up later.

Take, to fix our ideas, the two verses from 'Locksley Hall':

"I, the heir of all the ages in the foremost files of time,"

and --

"For I doubt not through the ages one increasing purpose runs."

Why is it that when we recite from memory one of these lines, and get as far as the ages, that portion of the other lines which follows, and, so to speak, sprouts¹³⁹ out of the ages, does not also sprout out of our memory, and confuse the sense of our words? Simply because the word that follows the ages has its brain-process awakened not simply by the brain-process of the ages alone, but by it plus the brain-processes of all the words preceding the ages. The word ages at its moment of strongest activity would, per se, indifferently discharge into either 'in' or 'one.' So would the previous words (whose tension is momentarily much less stronger than that of ages) each of them indifferently discharge into either of a large number of other words with which they have been at different times combined. But when the processes of 'I, the heir of all the ages,' simultaneously¹⁴⁰ vibrate in the brain, the last one of them in a maximal, the others in a fading phase of excitement; then the strongest line of discharge will be that which they all alike tend to take. 'In' and not 'one' or any other word will be the next to awaken, for its brain-process has previously¹⁴¹ vibrated in unison¹⁴² not only with that of ages, but with that of all those other words whose activity is dying away. It is a good case of the effectiveness over thought of what we called on p. 258 a 'fringe.'

But if some one of these preceding words -- 'heir,' for example -- had an intensely strong association with some brain-tracts entirely disjoined in experience from the poem of 'Locksley Hall' -- if the reciter, for instance, were tremulously awaiting the opening of a will which might make him a millionaire -- it is probable that the path of discharge through the words of the poem would be suddenly interrupted at the word 'heir.' His emotional interest in that word would be such that its own special associations would prevail over the combined ones of the other words. He would, as we say, be abruptly¹⁴³ reminded of his personal situation, and the poem would lapse¹⁴⁴ altogether from his thoughts.

The writer of these pages has every year to learn the names of a large number of students who sit in alphabetical¹⁴⁵ order in a lecture-room. He finally learns to call them by name, as they sit in their accustomed places. On meeting one in the street, however early in the year, the face hardly ever recalls the name, but it may recall the place of its owner in the lecture-room, his neighbors' faces, and consequently his general alphabetical position; and then, usually as the common associate of all these combined data, the student's name surges up in his mind.

A father wishes to show to some guests the progress of his rather dull child in Kindergarten instruction. Holding the knife upright on the table, he says, "What do you call that, my boy?" "I calls it a knife, I does," is the sturdy reply, from which the child cannot be induced to swerve¹⁴⁶ by any alteration¹⁴⁷ in the form of question, until the father recollecting¹⁴⁸ that in the Kindergarten a pencil was used, and not a knife, draws a long one from his pocket, holds it in the same way, and then gets the wished-for answer, "I calls it vertical¹⁴⁹." All the concomitants of the Kindergarten experience had to recombine their effect before the word 'vertical' could be reawakened.

Professor Bain, in his chapters on 'Compound Association,' has treated in a minute and exhaustive way of this type of mental sequence, and what he has done so well need not be here repeated.17
Impartial¹⁵⁰ Redintegration.

The ideal working of the law of compound association, were it unmodified by any extraneous¹⁵² influence, would be such as to keep the mind in a perpetual treadmill¹⁵³ of concrete reminiscences from which no detail could be omitted. Suppose, for example, we begin by thinking of a certain dinner-party. The only thing which all the components¹⁵⁴ of the dinner-party could combine to recall would be the first concrete occurrence which ensued upon it. All the details of this occurrence could in turn only combine to awaken the next following occurrence, and so on. If a, b, c, d, e, for instance, be the elementary nerve-tracts excited by the last act of the dinner-party, call this act A, and l, m, n, o, p be those of walking home through the frosty night, which we may call B, then the thought of A must awaken that of B, because a, b, c, d, e, will each and all discharge into l through the paths by which their original discharge took place. Similarly they will discharge into m, n, o, and p; and these latter tracts will also each reinforce the other's action because, in the experience B, they have already vibrated in unison. The lines in Fig. 40, p. 570, symbolize¹⁵⁵ the summation of discharges into each of the components of B, and the consequent strength of the combination of influences by which B in its totality is awakened.

Hamilton first used the word 'redintegration' to designate all association. Such processes as we have just described might in an emphatic¹⁵⁶ sense be termed redintegrations, for they would necessarily lead, if unobstructed, to the reinstatement in thought of the entire content of large trains of past experience. From this complete redintegration there could be no escape save through the irruption of some new and strong present impression of the senses, or through the excessive tendency of some one of the elementary brain-tracts to discharge independently into an aberrant¹⁵⁷ quarter of the brain. Such was the tendency of the word 'heir' in the verse from 'Locksley Hall,' which was our first example.

How such tendencies are constituted we shall have soon to inquire with some care. Unless they are present, the panorama¹⁵⁸ of the past, once opened, must unroll itself with fatal literality to the end, unless some outward sound, sight, or touch divert the current of thought.

Let us call this process impartial redintegration. Whether it ever occurs in an absolutely complete form is doubtful. We all immediately recognize, however, that in some minds there is a much greater tendency than in others for the flow of thought to take this form. Those insufferably garrulous¹⁵⁹ old women, those dry and fanciless beings who spare you no detail, however petty, of the facts they are recounting, and upon the thread of whose narrative¹⁶⁰ all the irrelevant items cluster as pertinaciously¹⁶¹ as the essential ones, the slaves of literal fact, the stumblers over the smallest abrupt⁷ step in thought, are figures known to all of us. Comic literature has made her profit out of them. Juliet's nurse is a classical example. George Eliot's village characters and some of Dicken's minor¹⁶² personages supply excellent instances.

Perhaps as successful a rendering¹⁶³ as any of this mental type is the character of Miss Bates in Miss Austen's 'Emma.' Hear how she redintegrates:

"'But where could you hear it?' cried Miss Bates. 'Where could you possibly hear it, Mr. Knightley? For it is not five minutes since I received Mrs. Cole's note -- no, it cannot be more than five -- or at least ten -- for I had got my bonnet and spencer on, just ready to come out -- I was only gone down to speak to Patty agian about the pork -- Jane was standing²⁹ in the passage -- were not you, Jane? -- for my mother was so afraid that we had not any salting-pan large enough. So I said I would go down and see, and Jane said: "Shall I go down instead? for I think you have a little cold, and Patty has been washing the kitchen." "Oh, my dear," said I -- well, and just then came the note. A Miss Hawkins -- that's all I know -- a Miss Hawkins, of Bath. But, Mr. Knightley, how could you possibly have heard it? for the very moment Mr. Cole told Mrs. Cole of it, she sat down and wrote to me. A Miss Hawkins --'"

But in every one of us there are moments when this complete reproduction of all the items of a past experience occurs. What are those moments? They are moments of emotional recall of the past as something which once was, but is gone for ever -- moments, the interest of which consists in the feeling that our self was once other than it now is. When this is the case, any detail, however minute, which will make the past picture more complete, will also have its effect in swelling¹⁶⁴ that total contrast between now and then which forms the central interest of our contemplation.
Ordinary or Mixed Association.

This case helps us to understand why it is that the ordinary spontaneous flow of our ideas does not follow the law of impartial redintegration. In no revival of a past experience are all the items of our thought equally operative in determining what the next thought shall be. Always some ingredient is prepotent over the rest. Its special suggestions or associations in this case will often be different from those which it has in common with the whole group of items; and its tendency to awaken these outlying associates will deflect¹⁶⁶ the path of our revery. Just as in the original sensible experience our attention focalized itself upon a few of the impressions of the scene before us, so here in the reproduction of those impressions an equal partiality is shown, and some items are emphasized above the rest. What these items shall be is, in most cases of spontaneous revery, hard to determine beforehand. In subjective¹⁶⁷ terms we say that the prepotent items are those which appeal most to our INTEREST.

Expressed in brain-terms, the law of interest will be: some one brain-process is always prepotent above its concomitants in arousing action elsewhere.

"Two processes," says Mr. Hodgson,18 "are constantly going on in redintegration. The one a process of corrosion¹⁶⁸, melting, decay; the other a process of renewing, arising, becoming. . . . No object of representation remains¹⁶⁹ long before consciousness in the same state, but fades, decays, and becomes indistinct. Those parts of the object, however, which possess an interest resist this tendency to gradual decay of the whole object. . . . This inequality in the object -- some parts, the uninteresting, submitting to decay; others, the interesting parts, resisting it -- when it has continued for a certain time, ends in becoming a new object."

Only where the interest is diffused¹⁷⁰ equally over all the parts (as in the emotional memory just referred to, where, as all past, they all interest us alike) is this law departed from. It will be least obeyed by those minds which have the smallest variety and intensity of interests -- those who, by the general flatness and poverty of their æsthetic nature, are kept for ever rotating among the literal sequences of their local an personal history.

Most of us, however, are better organized than this, and our musings pursue and erratic¹⁷¹ course, swerving¹⁷² continually into some new direction traced by the shifting play of interest as it ever falls on some partial item in each complex representation that is evoked¹⁷³. Thus it so often comes about that we find ourselves thinking at two nearly adjacent moments of things separated by the whole diameter of space and time. Not till we carefully recall each step of our cogitation¹⁷⁴ do we see how naturally we came by Hodgson's law to pass from one to the other. Thus, for instance, after looking at my clock just now (1879), I found myself thinking of a recent resolution in the Senate about our legal-tender notes. The clock called up the image of the man who had repaired its gong. He suggested the jeweller's shop where I had last seen him; that shop, some shirt-studs which I had bought there; they, the value of gold and its recent decline; the latter, the equal value of greenbacks, and this, naturally, the question of how long they were to last, and of the Bayard proposition. Each of these images offered various points of interest. Those which formed the turning-points of my thought are easily assigned. The gong was momentarily the most interesting part of the clock, because, from having begun with a beautiful tone, it had become discordant¹⁷⁵ and aroused disappointment. But for this the clock might have suggested the friend who gave it to me, or any one of a thousand circumstances connected with clocks. The jeweller's shop suggested the studs, because they alone of all its contents were tinged¹⁷⁶ with the egoistic interest of possession. This interest in the studs, their value, made me single out the material as its chief source, etc., to the end. Every reader who will arrest himself at any moment and say, "How came I to be thinking of just this?" will be sure to trace a train of representations linked together by lines of contiguity and points of interest inextricably combined. This is the ordinary process of the association of ideas as it spontaneously goes on in average minds. We may call it ORDINARY, or MIXED, ASSOCIATION.

Another example of it is given by Hobbes in a passage which has been quoted so often as to be classical:

"In a discourse¹⁷⁷ of our present civil war, what could seem more impertinent than to ask (as one did) what was the value of a Roman penny? Yet the coherence¹⁷⁹ to me was manifest enough. For the thought of the war introduced the thought of the delivering up the King to his enemies; the thought of that brought in the thought of the delivering up of Christ; and that again the thought of the thirty pence, which was the price of that treason: and thence easily followed that malicious¹⁸⁰ question; and all this in a moment of time; for thought is quick."19

Can we determine, now, when a certain portion of the going thought has, by dint¹⁵¹ of its interest, become so prepotent as to make its own exclusive associates the dominant¹⁸¹ features of the coming thought -- can we, I say, determine which of its own associates shall be evoked? For they are many. As Hodgson says:

"The interesting parts of the decaying object are free to combine again with any objects or parts of objects with which at any time they have been combined before. All the former combinations of these parts may come back into consciousness; one must; but which will?"

Mr. Hodgson replies:

"There can be but one answer: that which has been most habitually combined with them before. This new object begins at once to form itself in consciousness, and to group its part round the part still remaining from the former object; part after part comes out and arranges itself in its old position; but scarcely has the process begun, when the original law of interest begins to operate on this new formation, seizes on the interesting parts and impresses them on the attention to the exclusion¹⁸² of the rest, and the whole process is repeated again with endless variety. I venture to propose this as a complete and true account of the whole process of redintegration."

In restricting the discharge from the interesting item into that channel which is simply most habitual in the sense of most frequent, Hodgson's account is assuredly imperfect. An image by no means always revives its most frequent associate, although frequency is certainly one of the most potent¹⁶⁵ determinants of revival. If I abruptly utter the word swallow, the reader, if by habit an ornithologist¹⁸³, will think of a bird; if a physiologist¹⁸⁴ or a medical specialist in throat diseases, he will think of deglutition. If I say date, he will, if a fruit-merchant or an Arabian traveller, think of the produce of the palm; if an habitual student of history, figures with A.D. or B.C. before them will rise in his mind. If I say bed, bath, morning, his own daily toilet will be invincibly¹⁸⁵ suggested by the combined names of three of its habitual associates. But frequent lines of transition are often set at naught¹⁸⁶. The sight of C. Göring's 'System der kritischen Philosophie' has most frequently awakened in me thoughts of the opinions therein propounded¹⁸⁷. The idea of suicide has never been connected with the volumes. But a moment since, as my eye fell upon them, suicide was the thought that flashed into my mind. Why? Because but yesterday I received a letter from Leipzig informing me that this philosopher's recent death by drowning was an act of self-destruction. Thoughts tend, then, to awaken their most recent as well as their most habitual associates. This is a matter of notorious experience, too notorious, in fact, to need illustration. If we have seen our friend this morning, the mention of his name now recalls the circumstances of that interview, rather than any more remote details concerning him. If Shakespeare's plays are mentioned, and we were last night reading 'Richard II.,' vestiges¹⁸⁸ of that play rather than of 'Hamlet' or 'Othello' float through our mind. Excitement of peculiar tracts, or peculiar modes of general excitement in the brain, leave a sort of tenderness or exalted¹⁸⁹ sensibility behind them which takes days to die away. As long as it lasts, those tracts or those modes are liable to have their activities awakened by causes which at other times might leave them in repose¹⁹⁰. Hence, recency in experience is a prime factor in determining revival in thought.20

Vividness in an original experience may also have the same effect as habit or recency in bringing about likelihood of revival. If we have once witnessed an execution, any subsequent conversation or reading about capital punishment will almost certainly suggest images of that particular scene. Thus it is that events lived through only once, and in youth, may come in after-years, by reason of their exciting quality or emotional intensity, to serve as types or instances used by our mind to illustrate¹⁹¹ any and every occurring topic whose interest is most remotely pertinent¹⁷⁸ to theirs. If a man in his boyhood once talked with Napoleon, any mention of great men or historical events, battles or thrones, or the whirligig of fortune, or islands in the ocean, will be apt to draw to his lips the incidents of that one memorable¹⁹² interview. If the word tooth now suddenly appears on the page before the reader's eye, there are fifty chances out of a hundred that, if he gives it time to awaken any image, it will be an image of some operation of dentistry in which he has been the sufferer. Daily he has touched his teeth and masticated¹⁹³ with them; this very morning he brushed them, chewed his breakfast and picked them; but the rarer and remoter associations arise more promptly¹⁹⁴ because they were so much more intense.21

A fourth factor in tracing the course of reproduction is congruity¹⁹⁵ in emotional tone between the reproduced idea and our mood. The same objects do not recall the same associates when we are cheerful as when we are melancholy¹⁹⁶. Nothing, in fact, is more striking than our utter inability to keep up trains of joyous¹⁹⁷ imagery when we are depressed¹⁹⁸ in spirits. Storm, darkness, war, images of disease, poverty, and perishing afflict¹⁹⁹ unremittingly the imaginations of melancholiacs. And those of sanguine²⁰⁰ temperament²⁰¹, when their spirits are high, find it impossible to give any permanence to evil forebodings or to gloomy thoughts. In an instant the train of association dances off to flowers and sunshine, and images of spring and hope. The records of Arctic or African travel perused²⁰² in one mood awaken no thoughts but those of horror at the malignity²⁰³ of Nature; read at another time they suggest only enthusiastic reflections on the indomitable power and pluck of man. Few novels so overflow¹²⁸ with joyous animal spirits as 'The Three Guardsmen' of Dumas. Yet it may awaken in the mind of a reader depressed with sea-sickness (as the writer can personally testify) a most dismal and woful consciousness of the cruelty and carnage of which heroes like Athos, Porthos, and Aramis make themselves guilty.

Habit, recency, vividness, and emotional congruity are, then, all reasons why one representation rather than another should be awakened by the interesting portion of a departing thought. We may say with truth that in the majority of cases the coming representation will have been either habitual, recent, or vivid, and will be congruous. If all these qualities unite in any one absent associate, we may predict almost infallibly that that associate of the going thought will form an important ingredient in the coming thought. In spite of the fact, however, that the succession of representations is thus redeemed²⁰⁴ from perfect indeterminism and limited to a few classes whose characteristic quality is fixed by the nature of our past experience, it must still be confessed that an immense number of terms in the linked chain of our representations fall outside of all assignable rule. To take the instance of the clock given on page 586. Why did the jeweller's shop suggest the shirt-studs rather than a chain which I had brought there more recently, which had cost more, and whose sentimental²⁰⁵ associations were much more interesting? Both chain and studs had excited brain-tracts simultaneously with the shop. The only reason why the nerve-stream from the shop-tract switched off into the stud-tract rather than into the chain-tract must be that the stud-tract happened at that moment to lie more open, either because of some accidental alteration in its nutrition or because the incipient²⁰⁶ sub-conscious tensions of the brain as a whole had so distributed their equilibrium²⁰⁷ that it was more unstable²⁰⁸ here than in the chain-tract. Any reader's introspection will easily furnish similar instances. It thus remains true that to a certain extent, even in those forms of ordinary mixed association which lie nearest to impartial redintegration, which associate of the interesting item shall emerge must be called largely a matter of accident -- accident, that is, for our intelligence. No doubt it is determined by cerebral causes, but they are too subtile and shifting for our analysis.
Association by Similarity.

In partial or mixed associations we have all along supposed the interesting portion of the disappearing thought to be of considerable extent, and to be sufficiently²⁰⁹ complex to constitute by itself a concrete object. Sir William Hamilton relates, for instance, that after thinking of Ben Lomond he found himself thinking of the Prussian system of education, and discovered that the links of association were a German gentleman whom he had met on Ben Lomond, Germany, etc. The interesting part of Ben Lomond, as he had experienced it, the part operative in determining the train of his ideas was the complex image of a particular man. But now let us suppose that that selective agency of interested attention, which may thus convert impartial redintegration into partial association -- let us suppose that it refines itself still further and accentuates²¹⁰ a portion of the passing thought, so small as to be no longer the image of a concrete thing, but only of an abstract quality or property. Let us moreover suppose that the part thus accentuated²¹¹ persists in consciousness (or, in cerebral terms, has its brain-process continue) after the other portions of the thought have faded. This small surviving portion will then surround itself with its own associates after the fashion we have already seen, and the relation between the new thought's object and the object of the faded thought will be a relation of similarity. The pair of thoughts will form an instance of what is called 'Association by Similarity.'22

The similars which are here associated, or of which the first is followed by the second in the mind, are seen to be compounds. Experience proves that this is always the case. There is no tendency on the part of SIMPLE 'ideas,' attributes, or qualities to remind us of their like. The thought of one shade of blue does not remind us of that of another shade of blue, etc., unless indeed we have in mind some general purpose like naming the tint²¹², when we should naturally think of other blues²¹³ of the scale, through 'mixed association' of purpose, names, and tints²¹⁴, together. But there is no elementary tendency of pure qualities to awaken their similars in the mind.

We saw in the chapter on Discrimination that two compound things are similar when some one quality or group of qualities is shared alike by both, although as regards their other qualities they may have nothing in common. The moon is similar to a gas-jet, it is also similar to a football; but a gas-jet and a foot-ball are not similar to each other. When we affirm the similarity of two compound things, we should always say in what respect it obtains. Moon and gas-jet are similar in respect of luminosity, and nothing else; moon and foot-ball in respect of rotundity, and nothing else. Foot-ball and gas-jet are in no respect similar -- that is, they possess no common point, no identical attribute. Similarity, in compounds, is partial identity. When the same attribute appears in two phenomena, though it be their only common property, the two phenomena are similar is so far forth. To return now to our associated representations. If the thought of the moon is succeeded by the thought of a foot-ball, and that by the thought of one of Mr. X's railroads, it is because the attribute rotundity in the moon broke away from all the rest and surrounded itself with an entirely new set of companions -- elasticity²¹⁶, leathery integument²¹⁷, swift mobility²¹⁸ in obedience²¹⁹ to human caprice, etc.; and because the last-named attribute in the foot-ball in turn broke away from its companions, and, itself persisting, surrounded itself with such new attributes as make up the notions of a 'railroad king,' of a rising and falling stock-market, and the like.

The gradual passage from impartial redintegration to similar association through what we have called ordinary mixed association may be symbolized²²⁰ by diagrams. Fig. 41 is impartial redintegration, Fig. 42 is mixed, and Fig. 43 similar association. A in each is the passing, B the coming thought. In 'impartial,' all parts of A are equally operative in calling up B.
 

In 'mixed,' most parts of A are inert²²¹. The part M alone breaks out and awakens B.

In 'similar,' the focalized part M is much smaller than in the previous case, and after awakening its new set of associates, instead of fading out itself, it continues persistently²²² active along with them, forming an identical part in the two ideas, and making these, pro² tanto, resemble each other.

Why a single portion of the passing thought should break out from its concert with the rest and act, as we say, on its own hook, why the other parts should become inert, are mysteries which we can ascertain¹⁵ but not explain. Possibly a minuter insight into the laws of neural action will some day clear the matter up; possibly neural laws will not suffice, and we shall need to invoke a dynamic reaction of the form of consciousness upon its content. But into this we cannot enter now.
To sum up, then, we see that the difference between the three kinds of association reduces itself to a simple difference in the amount of that portion of the nerve-tract supporting the going thought which is operative in calling up the thought which comes. But the modus operandi of this active part is the same, be it large or be it small. The items constituting the coming object waken in every instance because their nerve-tracts once were excited continuously with those of the going object or its operative part. This ultimate physiological law of habit among the neural elements is what runs the train. The direction of its course and the form of its transitions, whether redintegrative, associative, or similar, are due to unknown regulative or determinative conditions which accomplish their effect by opening this switch and closing that, setting the engine sometimes at half-speed, and coupling or uncoupling cars.

This last figure of speech, into which I have glided²²⁴ unwittingly, affords itself an excellent instance of association by similarity. I was thinking of the deflections of the course of ideas. Now, from Hobbes's time downward, English writers have been fond of speaking of the train of our representations. This word happened to stand out in the midst of my complex thought with peculiarly sharp accentuation, and to surround itself with numerous details of railroad imagery. Only such details became clear, however, as had their nerve-tracts besieged²²⁵ by a double set of influences -- those from train on the one hand, and those from the movement of thought on the other. It may possibly be that the prepotency of the suggestions of the word train at this moment were due to the recent excitation of the railroad brain-tract by the instance chosen a few pages back of a railroad king playing foot-ball with the stock-market.

It is apparent from such an example how inextricably complex are all the contributory factors whose resultant is the line of our reverie. It would be folly in most cases to attempt to trace them out. From an instance like the above, where the pivot²²⁶ of the Similar Association was formed by a definite concrete word, train, to those where it is so subtile as utterly to elude²²⁷ our analysis, the passage is unbroken. We can form a series of examples. When Mr. Bagehot says that the mind of the savage²²⁸, so far from being in a state of nature, is tattooed²²⁹ all over with monstrous²³⁰ superstitions²³¹, the case is very like the one we have just been considering. When Sir James Stephen compares our belief in the uniformity of nature, the congruity of the future with the past, to a man rowing one way and looking another, and steering²³² his boat by keeping her stern in a line with an object behind him, the operative link becomes harder to dissect²³³ out. It is subtler still in Dr. Holmes's phrase, that stories in passing from mouth to mouth make a great deal of lee-way in proportion to their headway; or in Mr. Lowell's description of German sentences, that they have a way of yawing and going stern-foremost and not minding the helm for several minutes after it has been put down. And finally, it is a real puzzle when the color pale-blue is said to have feminine and blood-red masculine affinities²³⁴. And if I hear a friend describe a certain family as having blotting-paper voices, the image, though immediately felt to be apposite, baffles the utmost powers of analysis. The higher poets all use abrupt epithets²³⁵, which are alike intimate and remote, and, as Emerson says, sweetly torment²³⁶ us with invitations to their inaccessible²³⁷ homes.

In these latter instances we must suppose that there is an identical portion in the similar objects, and that its brain-tract is energetically operative, without, however, being sufficiently isolable²³⁸ in its activity as to stand out per se, and form the condition of a distinctly discriminated²³⁹ 'abstract idea.' We cannot even by careful search see the bridge over which we passed from the heart of one representation of that of the next. In some brains, however, this mode of transition is extremely common. It would be one of the most important of physiological discoveries could we assign the mechanical or chemical difference which makes the thoughts of one brain cling close to impartial redintegration, while those of another shoot about in all the lawless revelry of similarity. Why, in these latter brains, action should tend to focalize itself in small spots, while in the others it fills patiently its broad bed, it seems impossible to guess. Whatever the difference may be, it is what separates the man of genius from the prosaic²⁴⁰ creature of habit and routine thinking. In Chapter XXII we shall need to recur again to this point.
Association in Voluntary Thought.

Hitherto we have assumed the process of suggestion of one object by another to be spontaneous. The train of imagery wanders at its own sweet will, now trudging²⁴¹ in sober grooves²⁴² of habit, now with a hop²², skip, and jump darting²⁴³ across the whole field of time and space. This is revery, or musing; but great segments of the flux²⁴⁴ of our ideas consist of something very different from this. They are guided by a distinct purpose or conscious interest. As the Germans say, we nachdenken, or think towards a certain end. It is now necessary to examine what modification²⁴⁵ is made in the trains of our imagery by the having of an end in view. The course of our ideas is then called voluntary.

Physiologically²⁴⁶ considered, we must suppose that a purpose means the persistent²²³ activity of certain rather definite brain-processes throughout the whole course of thought. Our most usual cogitations are not pure reveries, absolute driftings, but revolve²⁴⁷ about some central interest or topic to which most of the images are relevant, and towards which we return promptly after occasional digressions. This interest is subserved by the persistently active brain-tracts we have supposed. In the mixed associations which we have hitherto studied, the parts of each object which form the pivots²⁴⁸ on which our thoughts successively turn have their interest largely determined by their connection with some general interest which for the time has seized upon the mind. If we call Z the brain-tract of general interest, then, if the object abc turns up, and b has more associations with Z than have either a or c, b will become the object's interesting, pivotal portion, and will call up its own associates exclusively. For the energy of b's brain-tract will be augmented²⁴⁹ by Z's activity, -- an activity which, from lack of previous connection between Z and a or c, does not influence a or c. If, for instance, I think of Paris whilst I am hungry, I shall not improbably find that its restaurants have become the pivot of my thought, etc., etc.

But in the theoretic as well as in the practical life there are interests of a more acute sort, taking the form of definite images of some achievement, be it action or acquisition, which we desire to effect. The train of ideas arising under the influence of such an interest constitutes usually the thought of the means by which the end shall be attained²⁵⁰. If the end by its simple presence does not instantaneously suggest the means, the search for the latter becomes an intellectual problem. The solution of problems is the most characteristic and peculiar sort of voluntary thinking. Where the end thought of is some outward deed or gain, the solution is largely composed of the actual motor processes, walking, speaking, writing, etc., which lead up to it. Where the end is in the first instance only ideal, as in laying out a place of operations, the steps are purely imaginary. In both of these cases the discovery of the means may form a new sort of end, of an entirely peculiar nature, an end, namely, which we intensely desire before we have attained it, but of the nature of which, even whilst most strongly craving²⁵² it, we have no distinct imagination whatever. Such an end is a problem.

The same state of things occurs whenever we seek to recall something forgotten, or to state the reason for a judgment²⁵³ which we have made intuitively. The desire strains and presses in a direction which it feels to be right but towards a point which it is unable to see. In short, the absence of an item is a determinant of our representations quite as positive as its presence can ever be. The gap becomes no mere¹⁰³ void, but what is called an aching void. If we try to explain in terms of brain-action how a thought which only potentially exists can yet be effective, we seem driven to believe that the brain-tract thereof must actually be excited, but only in a minimal²⁵⁴ and sub-conscious way. Try for instance, to symbolize what goes on in a man who is racking his brains to remember a thought which occurred to him last week. The associates of the thought are there, many of them at least, but they refuse to awaken the thought itself. We cannot suppose that they do not irradiate at all into its brain-tract, because his mind quivers on the very edge of its recovery. Its actual rhythm sounds in his ears; the words seem on the imminent²⁵⁵ point of following, but fail. What it is that blocks the discharge and keeps the brain-excitement here from passing beyond the nascent²⁵⁶ into the vivid state cannot be guessed. But we see in the philosophy of desire and pleasure, that such nascent excitements, spontaneously tending to a crescendo²⁵⁷, but inhibited²⁵⁸ or checked by other causes, may become potent mental stimuli and determinants of desire. All questioning, wonder, emotion of curiosity, must be referred to cerebral causes of some such form as this. The great difference between the effort to recall things forgotten and the search after the means to a given end, is that the latter have not, whilst the former have, already formed a part of our experience. If we first study the mode of recalling a thing forgotten, we can take up with better understanding the voluntary quest of the unknown.

The forgotten thing is felt by us as a gap in the midst of certain other things. If it is a thought, we possess a dim idea of where we were and what we were about when it occurred to us. We recollect the general subject to which it relates. But all these details refuse to shoot together into a solid whole, for the lack of the vivid traits of this missing thought, the relation whereof to each detail forms now the main interest of the latter. We keep running over the details in our mind, dissatisfied, craving something more. From each detail there radiate lines of association forming so many tentative guesses. Many of these are immediately seen to be irrelevant, are therefore void of interest, and lapse immediately from consciousness. Others are associated with the other details present, and with the missing thought as well. When these surge up, we have a peculiar feeling that we are 'warm,' as the children say when they play hide and seek; and such associates as these we clutch at and keep before the attention. Thus we recollect successively that when we had the thought in question we were at the dinner-table; then that of our friend J. D. was
there; then that the subject talked about was so and so; finally, that the thought came à propos of a certain anecdote²⁵⁹, and then that it had something to do with a French quotation²⁶⁰. Now all these added associations arise independently of the will, by the spontaneous process we know so well. All that the will does is to emphasize and linger over those which seem pertinent, and ignore the rest. Through this hovering²⁶¹ of the attention in the neighborhood of the desired object, the accumulation of associates becomes so great that the combined tensions of their neural processes break through the bar, and the nervous wave pours into the tract which has so long been awaiting its advent²⁶². And as the expectant, sub-conscious itching²⁶³ there, bursts into the fulness of vivid feeling, the mind finds an inexpressible relief.

The whole process can be rudely symbolized in a diagram. Call the forgotten thing Z, the first facts with which we felt it was related, a, b, and c, and the details finally operative in calling it up, l, m, and n. Each circle will then stand for the brain-process underlying²⁶⁴ the thought of the object denoted by the letter contained within it.

The activity in Z will at first be a mere tension; but as the activities in a, b, and c little by little irradiate into l, m, and n, and as all these processes are somehow connected with Z, their combined irradiations upon Z, represented by the centripetal²⁶⁵ arrows, succeed in helping²⁶⁶ the tension there to overcome the resistance, and in rousing Z also to full activity.

The tension present from the first in Z, even though it keep below the threshold of discharge, is probably to some degree co-operative with a, b, c in determining that l, m, n shall awake. Without Z's tension there might be a slower accumulation of objects connected with it. But, as aforesaid, the objects come before us through the brain's own laws, and the Ego²⁸ of the thinker can only remain on hand, as it were, to recognize their relative values and brood over some of them, whilst others are let drop. As when we have lost a material object we cannot recover it by a direct effort, but only through moving about such neighborhoods wherein it is likely to lie, and trusting that it will then strike our eye; so here, by not letting our attention leave the neighborhood of what we seek, we trust that it will end by speaking to us of its own accord.23

Turn now to the case of finding the unknown means to a distinctly conceived end. The end here stands in the place of a, b, c, in the diagram. It is the starting-point of the irradiations of suggestion; and here, as in that case, what the voluntary attention does is only to dismiss some of the suggestions as irrelevant, and hold fast to others which are felt to be more pertinent -- let these be symbolized by l, m, n. These latter at last accumulate sufficiently to discharge all together into Z, the excitement of which process is, in the mental sphere, equivalent to the solution of our problem. The only difference between this case and the last, is that in this one there need be no original sub-excitement in Z, co-operating from the very first. When we seek a forgotten name, we must suppose the name's centre to be in a state of active tension from the very outset, because of that peculiar feeling of recognition which we get at the moment of recall. The plenitude of the thought seems here but a maximum degree of something which our mind divined in advance. It instantaneously fills a socket²⁶⁷ completely moulded to its shape; and it seems most natural to ascribe the identity of quality in our feeling of the gaping²⁶⁸ socket and our feeling of what comes to fill it, to the sameness of a nerve-tract excited in different degrees. In the solving of a problem, on the contrary, the recognition that we have found the means is much less immediate. Here, what we are aware of in advance seems to be its relations with the items we already know. It must bear a causal relation, or it must be an effect, or it must contain an attribute common to two items, or it must be a uniform concomitant, or what not. We know, in short, a lot about it, whilst as yet we have no knowledge of acquaintance with it (see p. 221), or in Mr. Hodgson's language, "we know what we want to find beforehand, in a certain sense, in its second intention, and do not know it, in another sense, in its first intention."24 Our intuition that one of the ideas which turn up is, at last, our quœsitum, is due to our recognition that its relations are identical with those we had in mind, and this may be a rather slow act of judgment. In fact, every one knows that an object may be for some time present to his mind before its relations to other matters are perceived. To quote Hodgson again:

"The mode of operation is common to voluntary memory and reason. . . . But reasoning adds to memory the function of comparing or judging the images which arise. . . . Memory aims at filling the gap with an image which has at some particular time filled it before, reasoning with one which bears certain time-and space-relations to the images before and after" --

or, to use perhaps clearer language, one which stands in determinate logical relations to those data round about the gap which filled our mind at the start. This feeling of the blank form of relationship before we get the material quality of the thing related will surprise no one who has read Chapter IX.

From the guessing of newspaper enigmas²⁶⁹ to the plotting of the policy of an empire there is no other process than this. We trust to the laws of cerebral nature to present us spontaneously with the appropriate idea:

"Our only command over it is by the effort we make to keep the painful unfilled gap in consciousness.25 . . . Two circumstances are important to notice: the first is, that volition²⁷⁰ has no power of calling up images, but only of rejecting and selecting from those offered by spontaneous redintegration.26 But the rapidity with which this selection is made, owing to the familiarity of the ways in which spontaneous redintegration runs, gives the process of reasoning the appearance of evoking²⁷¹ images that are foreseen to be conformable to the purpose. There is no seeing them before they are offered; there is no summoning them before they are seen. The other circumstance is, that every kind of reasoning is nothing, in its simplest form, but attention."27

It is foreign to our purpose here to enter into any detailed²⁷² analysis of the different classes of mental pursuit. In a scientific research we get perhaps as rich an example as can be found. The inquirer starts with a fact of which he seeks the reason, or with an hypothesis of which he seeks the proof. In either case he keeps turning the matter incessantly in his mind until, by the arousal of associate upon associate, some habitual, some similar, one arises which he recognizes to suit his need. This, however, may take years. No rules can be given by which the investigator²⁷³ may proceed straight to his result; but both here and in the case of reminiscence the accumulation of helps in the way of associations may advance more rapidly by the use of certain routine methods. In striving to recall a thought, for example, we may of set purpose run through the successive classes of circumstances with which it may possibly have been connected, trusting that when the right member of the class has turned up it will help the thought's revival. Thus we may run through all the places in which we may have had it. We may run through the persons whom we remember to have conversed²⁷⁴ with, or we may call up successively all the books we have lately been reading. If we are trying to remember a person we may run through a list of streets or of professions. Some item out of the lists thus methodically gone over will very likely be associated with the fact we are in need of, and may suggest it or help to do so. And yet the item might never have arisen without such systematic²⁷⁵ procedure. In scientific research this accumulation of associates has been methodized by Mill under the title of 'The Four Methods of Experimental Inquiry²⁷⁶.' By the 'method of agreement,' by that of 'difference,' by those of 'residues²⁷⁷' and 'concomitant variations' (which cannot here be more nearly defined), we make certain lists of cases; and by ruminating²⁷⁸ these lists in our minds the cause we seek will be more likely to emerge. But the final stroke of discovery is only prepared, not effected, by them. The brain-tracts must, of their own accord, shoot the right way at last, or we shall still grope in darkness. That in some brains the tracts do shoot the right way much oftener than in others, and that we cannot tell why, -- these are ultimate facts to which we must never close our eyes. Even in forming our lists of instances according to Mill's methods, we are at the mercy of the spontaneous workings of Similarity in our brain. How are a number of facts, resembling the one whose cause we seek, to be brought together in a list unless the one will rapidly suggest the other through association by similarity?
Similarity No Elementary Law.

Such is the analysis I propose, first of the three main types of spontaneous association, and then of voluntary association. It will be observed that the object called up may bear any logical relation whatever to the one which suggested it. The law requires only that one condition should be fulfilled. The fading object must be due to a brain-process some of whose elements awaken through habit some of the elements of the brain-process of the object which comes to view. This awakening is the operative machinery²⁷⁹, the causal agency, throughout, quite as much so in the kind of association I have called by the name of Similarity, as in any other sort. The similarity between the objects, or between the thoughts (if similarity there be between these latter), has no causal agency in carrying us from one to the other. It is but a result -- the effect of the usual causal agent when this happens to work in a certain particular and assignable way. But ordinary writers talk as if the similarity of the objects were itself an agent, co-ordinate with habit, and independent of it, and like it able to push objects before the mind. This is quite unintelligible²⁸⁰. The similarity of two things does not exist till both things are there -- it is meaningless to talk of it as an agent of production of anything, whether in the physical or the psychical²⁸² realms.28 It is a relation which the mind perceives after the fact, just as it may perceive the relations of superiority, of distance, of causality, of container and content, of substance and accident, or of contrast, between an object and some second object which the associative machinery calls up.29

There are, nevertheless, able writers who not only insist on preserving association by similarity as a distinct elementary law, but who make it the most elementary law, and seek to derive²⁸³ contiguous association from it. Their reasoning is as follows: When the present impression A awakens the idea b of its past contiguous associate B, how can this occur except through first reviving an image a of its own past occurrence. This is the term directly connected with b; so that the process instead of being simply A -- b is A -- a -- b. Now A and a are similars; therefore no association by contiguity can occur except through a previous association by similarity. The most important supposition here made is that every impression on entering the mind must needs awaken an image of its past self, in the light of which it is 'apperceived' or understood, and through the intermediation of which it enters into relation with the mind's other objects. This assumption is almost universally made; and yet it is hard to find any good reason for it. It first came before us when we were reviewing the facts of aphasia²⁸⁴ and mental blindness (see p. 50 ff.). But we then saw no need of optical and auditory images to interpret optical and auditory sensations by. On the contrary, we agreed that auditory sensations were understood by us only so far as they awakened non-auditory images, and optical sensations only so far as they awakened non-optical images. In the chapters on Memory, on Reasoning, and on Perception the same assumption will meet us again, and again will have to be rejected as groundless. The sensational²⁸⁵ process A and the ideational process a probably occupy essentially²⁸⁶ the same tracts. When the outer stimulus²⁸⁷ comes and those tracts vibrate with the sensation A, they discharge as directly into the paths which lead to B as when there is no outer stimulus and they only vibrate with the idea a. To say that the process A can only reach these paths by the help of the weaker process a is like saying that we need a candle to see the sun by. A replaces a, does all that a does and more; and there is no intelligible²⁸¹ meaning, to my mind, in saying that the weaker process coexists with the stronger. I therefore consider that these writers are altogether wrong. The only plausible²⁸⁸ proof they give of the coexistence of a with A is when A gives us a sense of familiarity but fails to awaken any distinct thought of past contiguous associates. In a later chapter I shall consider this case. Here I content myself with saying that it does not seem conclusive²⁸⁹ as to the point at issue; and that I still believe association of coexistent or sequent impressions to be the one elementary law.

CONTRAST has also been held to be an independent agent in association. But the reproduction of an object contrasting with one already in the mind is easily explained on our principles. Recent writers, in fact, all reduce it either to similarity or contiguity. Contrast always presupposes generic²⁹⁰ similarity; it is only the extremes of a class which are contrasted, black and white, not black and sour, or white and prickly. A machinery which reproduces a similar at all, may reproduce the opposite similar, as well as any intermediate term. Moreover, the greater number of contrasts are habitually coupled in speech, young and old, life and death, rich and poor, etc., and are, as Dr. Bain says, in everybody's memory.30

I trust that the student will now feel that the way to a deeper understanding of the order of our ideas lies in the direction of cerebral physiology. The elementary process of revival can be nothing but the law of habit. Truly the day is distant when physiologists²⁹¹ shall actually trace from cell-group to cell-group the irradiations which we have hypothetically invoked²⁹². Probably it will never arrive. The schematism we have used is, moreover, taken immediately from the analysis of objects into their elementary parts, and only extended by analogy to the brain. And yet it is only as incorporated in the brain that such a schematism can represent anything causal. This is, to my mind, the conclusive reason for saying that the order of presentation of the mind's materials is due to cerebral physiology alone.

The law of accidental prepotency of certain processes over others falls also within the sphere of cerebral probabilities. Granting such instability as the brain-tissue requires, certain points must always discharge more quickly and strongly than others; and this prepotency would shift its place from moment to moment by accidental causes, giving us a perfect mechanical diagram of the capricious play of similar association in the most gifted mind. The study of dreams confirms this view. The usual abundance of paths of irradiation seems, in the dormant²⁹³ brain, reduced. A few only are pervious, and the most fantastic sequences occur because the currents run -- 'like sparks in burnt-up paper' -- wherever the nutrition of the moment creates an opening, but nowhere else.

The effects of interested attention and volition remain. These activities seem to hold fast to certain elements, and by emphasizing them and dwelling²⁹⁴ on them, to make their associates the only ones which are evoked. This is the point at which an anti-mechanical psychology²⁹⁵ must, if anywhere, make it stand in dealing²⁹⁶ with association. Everything else is pretty certainly due to cerebral laws. My own opinion on the question of active attention and spiritual spontaneity is expressed elsewhere. But even though there be a mental spontaneity, it can certainly not create ideas or summon them ex abrupto. Its power is limited to selecting amongst those which the associative machinery has already introduced or tends to introduce. If it can emphasize, reinforce, or protract⁹⁵ for a second either one of these, it can do all that the most eager advocate of free will need demand; for it then decides the direction of the next associations by making them hinge upon the emphasized term; and determining in this wise the course of the man's thinking, it also determines his acts.
The History of Opinion Concerning Association.

may be briefly glanced at ere we end the chapter.31 Aristotle seems to have caught both the facts and the principle of explanation; but he did not expand his views, and it was not till the time of Hobbes that the matter was again touched on in a definite way. Hobbes first formulated the problem of the succession of our thoughts. He writes in Leviathan, chapter III, as follows:

"By consequence, or train of thoughts, I understand that succession of one thought to another which is called, to distinguish it from discourse in words, mental discourse. When a man thinketh on anything whatsoever²⁹⁷, his next thought after is not altogether so casual as it seems to be. Not every thought to every thought succeeds indifferently. But as we have no imagination, whereof we have not formerly had sense, in whole or in parts; so we have no transition from one imagination to another, whereof we never had the like before in our senses. The reason whereof is this. All fancies are motions within us, relics²⁹⁸ of those made in the sense: and those motions that immediately succeeded one another in the sense continue also together after sense: insomuch as the former coming again to take place, and be predominant, the latter followeth, by coherence of the matter moved, in such manner, as water upon a plane table is drawn²⁹⁹ which way any one part of it is guided by the finger. But because in sense, to one and the same thing perceived, sometimes one thing, sometimes another succeedeth, it comes to pass in time that, in the imagining of anything, there is no certainty what we shall imagine next; only this is certain, it shall be something that succeeded the same before, at one time or another. This train of thoughts, or mental discourse, is of two sorts. The first is unguided, without design, and inconstant; wherein there is no passionate³⁰⁰ thought, to govern and direct those that follow, to itself, as the end and scope of some desire, or other passion. . . . The second is more constant; as being regulated by some desire and design. For the impression made by such things as we desire, or fear, is strong and permanent, or, if it cease for a time, of quick return: so strong is it, sometimes, as to hinder and break our sleep. From desire ariseth the thought of some means we have seen produce the like of that which we aim at; and from the thought of that, the thought of means to that mean; and so continually, till we come to some beginning within our own power. And because the end, by the greatness of the impression, comes often to mind, in case our thoughts begin to wander, they are quickly again reduced into the way: which observed by one of the seven wise men, made him give men this precept³⁰¹, which is now worn out, Respice finem; that is to say, in all your actions, look often upon what you would have, as the thing that directs all your thoughts in the way to attain²⁵¹ it.

"The train of regulated thoughts is of two kinds; one, when of an effect imagined we seek the causes, or means that produce it: and this is common to man and beast. The other is, when imagining anything whatsoever, we seek all the possible effects that can by it be produced; that is to say, we imagine what we can do with it, when we have it. Of which I have not at any time seen any sign, but in man only; for this is a curiosity hardly incident to the nature of any living creature that has no other passion but sensual, such as are hunger, thirst, lust⁸⁰, and anger. In sum, the discourse of the mind, when it is governed by design, is nothing but seeking, or the faculty³⁰² of invention, which the Latins called sagacitas, and sollertia; a hunting out of the causes, of some effect, present or past; or of the effects, of some present or past cause."

The most important passage after this of Hobbes is Hume's:

"As all simple ideas may be separated by the imagination, and may be united again in what form it pleases, nothing would be more unaccountable than the operations of that faculty, were it not guided by some universal principles, which render it, in some measure, uniform with itself in all times and places. Were ideas entirely loose and unconnected, chance alone would join them; and 'tis impossible the same simple ideas should fall regularly into complex ones (as they commonly do) without some bond of union among them, some associating quality, by which one idea naturally introduces another. This uniting principle among ideas is not to be considered as an inseparable connection; for that has been already excluded from the imagination. Nor yet are we to conclude that without it the mind cannot join two ideas; for nothing is more free than that faculty: but we are only to regard it as a gentle force, which commonly prevails, and is the cause why, among other things, languages so nearly correspond to each other; nature in a manner pointing to every one those simple ideas which are most proper to be united in a complex one. The qualities from which this association arises, and by which the mind is after this manner conveyed from one idea to another, are three, viz., RESEMBLANCE, CONTIGUITY in time or place, and CAUSE and EFFECT.

"I believe it will not be very necessary to prove that these qualities produce an association among ideas, and upon the appearance of one idea naturally introduce another. 'Tis plain that in the course of our thinking, and in the constant revolution of our ideas, our imagination runs easily from one idea to any other that resembles it, and that this quality alone is to the fancy a sufficient bond and association. 'Tis likewise evident, that as the senses, in changing their objects, are necessitated³⁰³ to change them regularly, and take them as they lie contiguous to each other, the imagination must by long custom acquire the same method of thinking, and run along the parts of space and time in conceiving its objects. As to the connection that is made by the relation of cause and effect, we shall have occasion afterwards to examine it to the bottom, and therefore shall not at present insist upon it. 'Tis sufficient to observe that there is no relation which produces a stronger connection in the fancy, and makes one idea more readily recall another, that the relation of cause and effect betwixt their objects. . . . These are therefore the principles of union or cohesion among our simple ideas, and in the imagination supply the place of that inseparable connection by which they are united in our memory. Here is a kind of ATTRACTION, which in the mental world will be found to have as extraordinary effects as in the natural, and to show itself in as many and as various forms. Its effects are everywhere conspicuous³⁰⁴; but as to its causes, they are mostly unknown, and must be resolved into original qualities of human nature, which I pretend not to explain."32

Hume did not, however, any more than Hobbes, follow out the effects of which he speaks, and the task of popularizing the notion of association and making an effective school based on association of ideas alone was reserved for Hartley33 and James Mill.34 These authors traced minutely the presence of association in all the cardinal³⁰⁵ notions and operations of the mind. The several 'faculties³⁰⁶' of the Mind were dispossessed; the one principle of association between ideas did all their work. As Priestley says:

"Nothing is requisite³⁰⁸ to make any man whatever he is, but a sentient³⁰⁹ principle with this single law. . . . Not only all our intellectual pleasures and pains but all the phenomena of memory, imagination, volition, reasoning and every other mental affection and operation, are but different modes or cases of the association of ideas."35

An eminent³¹⁰ French psychologist, M. Ribot, repeats Hume's comparison of the law of association with that of gravitation, and goes on to say:

"It is remarkable³¹¹ that this discovery was made so late. Nothing is simpler, apparently³¹², than to notice that this law of association is the truly fundamental, irreducible phenomenon of our mental life; that it is at the bottom of all our acts; that is permits of no exception; that neither dream, revery, mystic ecstasy³¹³, nor the most abstract reasoning can exist without it; that its suppression would be equivalent to that of thought itself. Nevertheless no ancient author understood it, for one cannot seriously maintain that a few scattered³¹⁴ lines in Aristotle and the Stoics³¹⁵ constitute a theory and clear view of the subject. It is to Hobbes, Hume, and Hartley that we must attribute the origin of these studies on the connection of our ideas. The discovery of the ultimate law of our psychologic acts has this, then, in common with many other discoveries: it came late and seems so simple that it may justly astonish us.

"Perhaps it is not superfluous³¹⁶ to ask in what this manner of explanation is superior to the current theory of Faculties.36 The most extended usage consists, as we know, in dividing intellectual phenomena into classes, in separating those which differ, in grouping together those of the same nature and in giving to these a common name and in attributing them to the same cause; it is thus that we have come to distinguish those diverse aspects of intelligence which are called judgment, reasoning, abstraction, perception, etc. This method is precisely³¹⁷ the one followed in Physics, where the words caloric, electricity, gravity, designate the unknown causes of certain groups of phenomena. If one thus never forgets that the diverse faculties are only the unknown causes of known phenomena, that they are simply a convenient means of classifying the facts and speaking of them, if one does not fall into the common fault of making out of them substantial entities³¹⁸, creations which now agree, now disagree, so forming in the intelligence a little republic; then, we can see nothing reprehensible³¹⁹ in this distribution into faculties, conformable as it is to the rules of a sound method and of a good natural classification. In what then is Mr. Bain's procedure superior to the method of the faculties? It is that the latter is simply a classification while his is an explanation. Between the psychology which traces intellectual facts back to certain faculties, and that which reduces them to the single law of association, there is, according to our way of thinking, the same difference that we find in Physics between those who attribute its phenomena to five or six causes, and those who derive gravity caloric, light, etc., from motion. The system of the faculties explains nothing because each one of them is only a flatus vocis which is of value merely through the phenomena which it contains, and signifies nothing more than these phenomena. The new theory, on the contrary, shows that the different processes of intelligence are only diverse cases of a single law; that imagination, deduction³²⁰, induction³²¹, perception, etc., are but so many determinate ways in which ideas may combine with each other; and that the differences of faculties are only differences of association. It explains all intellectual facts, certainly not after the manner of Metaphysics which demands the ultimate and absolute reason of things; but after the manner of Physics which seeks only their secondary and immediate cause."37

The inexperienced reader may be glad of a brief indication of the manner in which all the different mental operations may be conceived to consist of images of sensation associated together.

Memory is the association of a present image with others known to belong to the past. Expectation the same, with future substituted for past. Fancy, the association of images without temporal order.

Belief in anything not present to sense is the very lively, strong, and steadfast³²² association of the image of that thing with some present sensation, so that as long as the sensation persists the image cannot be excluded from the mind.

Judgment is 'transferring the idea of truth by association from one proposition to another that resembles it.'38

Reasoning is the perception that "whatever has any mark has that which it is a mark of"; in the concrete case the mark or middle term being always associated with each of the other terms and so serving as a link by which they are themselves indirectly associated together. This same kind of transfer of a sensible experience associated with another to a third also associated with that other, serves to explain emotional facts. When we are pleased or hurt we express it, and the expression associates itself with the feeling. Hearing the same expression from another revives the associated feeling, and we sympathize, i.e. grieve or are glad with him.

The other social affections, Benevolence³²³, Conscientiousness³²⁴, Ambition, etc., arise in like manner by the transfer of the bodily pleasure experienced as a reward for social service, and hence associated with it, to the act of service itself, the link of reward being dropped out. Just so Avarice³²⁵ when the miser³²⁶ transfers the bodily pleasures associated with the spending of money to the money itself, dropping the link of spending.

Fear is a transfer of the bodily hurt associated by experience with the thing feared, to the thought of the thing, with the precise features of the hurt left out. Thus we fear a dog without distinctly imagining his bite.

Love is the association of the agreeableness of certain sensible experiences with the idea of the object capable of affording them. The experiences themselves may cease to be distinctly imagined after the notion of their pleasure has been transferred to the object, constituting love there-for.

Volition is the association of ideas of muscular motion with the ideas of those pleasures which the motion produces. The motion at first occurs automatically and results in a pleasure unforeseen. The latter becomes so associated with the motion that whenever we think of it the idea of the motion arises; and the idea of the motion when vivid causes the motion to occur. This is an act of will.

Nothing is easier than for a philosopher of this school to explain from experience such a notion as that of infinitude.

"He sees in it an ordinary manifestation³²⁷ of one of the laws of the association of ideas, -- the law that the idea of a thing irresistibly³²⁸ suggests the idea of any other thing which has been often experienced in close conjunction with it, and not otherwise. As we have never had experience of any point of space without other points beyond it, nor of any point of time without others following it, the law of indissoluble association makes it impossible for us to think of any point of space or time, however distant, without having the idea irresistibly realized, in imagination, of other points still more remote. And thus the supposed original and inherent property of these two ideas is completely explained and accounted for by the law of association; and we are enabled to see that if Space or Time were really susceptible³²⁹ of termination, we should be just as unable as we now are to conceive the idea."39

These examples of the Associationist Psychology are with the exception of the last, very crudely expressed, but they suffice for our temporary need. Hartley and James Mill40 improved upon Hume so far as to employ but a single principle of association, that of contiguity or habit. Hartley ignores resemblance, James Mill expressly repudiates³³⁰ it in a passage which is assuredly one of the curiosities of literature:

"I believe it will be found that we are accustomed to see like things together. When we see a tree, we generally see more trees than one; a sheep, more sheep than one; a man, more men than one. From this observation, I think, we may refer resemblance to the law of frequency [i.e., contiguity], of which it seems to form only a particular case."

Mr. Herbert Spencer has still more recently tried to construct a Psychology which ignores Association by Similarity,41 and in a chapter, which also is a curiosity, he tries to explain the association of two ideas by a conscious reference of the first to the point of time when its sensation was experienced, which point of time is no sooner thought of than its content, namely, the second idea, arises. Messrs. Bain and Mill, however, and the immense majority of contemporary psychologists retain both Resemblance and Contiguity as irreducible principles of Association.

Professor Bain's exposition of association is by common consent looked upon as the best expression of the English school. Perception of agreement and difference, retentiveness³³¹, and the two sorts of association, contiguity and similarity, are by him regarded as constituting all that is meant by intellect proper. His pages are painstaking³³² and instructive from a descriptive point of view; though, after my own attempt to deal with the subject causally, I can hardly award to them any profound explanatory value. Association by Similarity, too much neglected by the British school before Bain, receives from him the most generous exemplification. As an instructive passage, the following, out of many equally good, may be chosen to quote:

"We may have similarity in form with diversity of use, and similarity of use with diversity of form. A rope suggests other ropes and cords, if we look to the appearance; but looking to the use, it may suggest an iron cable, a wooden prop¹⁰, an iron girding, a leather band, or bevelled gear. In spite of diversity of appearance, the suggestion turns on what answers a common end. If we are very much attracted by sensible appearances, there will be the more difficulty in recalling things that agree only in the use; if, on the other hand, we are profoundly sensitive to the one point of practical efficiency as a tool, the peculiarities³³³ not essential to this will be little noticed, and we shall be ever ready to revive past objects corresponding in use to some one present, although diverse in all other circumstances. We become oblivious³³⁴ to the difference between a horse, a steam-engine, and a waterfall, when our minds are engrossed³³⁵ with the one circumstance of moving power. The diversity in these had no doubt for a long time the effect of keeping back their first identification; and to obtuse³³⁶ intellects, this identification might have been for ever impossible. A strong concentration of mind upon the single peculiarity³³⁷ of mechanical force, and a degree of indifference³³⁸ to the general aspect of the things themselves, must conspire³³⁹ with the intellectual energy of resuscitation³⁴⁰ by similars, in order to summon together in the view three structures so different. We can see, by an instance like this, how new adaptations of existing machinery might arise in the mind of a mechanical inventor. When it first occurred to a reflecting mind that moving water had a property identical with human or brute³⁴¹ force, namely, the property of setting other masses in motion, overcoming inertia³⁴² and resistance, -- when the sight of the stream suggested through this point of likeness³⁴³ the power of the animal, -- a new addition was made to the class of prime movers, and when circumstances permitted, this power could become a substitute for the others. It may seem to the modern understanding, familiar with water-wheels and drifting rafts, that the similarity here was an extremely obvious one. But if we put ourselves back into an early state of mind, when running water affected³⁴⁴ the mind by its brilliancy, its roar, and irregular devastation³⁴⁵, we may easily suppose that to identify this with animal muscular energy was by no means an obvious effect. Doubtless when a mind arose, insensible by natural constitution to the superficial aspects of things, and having withal a great stretch of identifying intellect, such a comparison would then be possible. We may pursue the same example one stage further, and come to the discovery of steam power, or the identification of expanding vapor³⁴⁶ with the previously known sources of mechanical force. To the common eye, for ages, vapor presented itself as clouds in the sky; or as a hissing³⁴⁷ noise at the spout³⁴⁸ of a kettle, with the formation of a foggy curling cloud at a few inches' distance. The forcing up of the lid of a kettle may also have been occasionally observed. But how long was it ere any one was struck with the parallelism of this appearance with a blast of wind, a rush of water, or an exertion³⁴⁹ of animal muscle? The discordance³⁵⁰ was too great to be broken through by such a faint and limited amount of likeness. In one mind, however, the identification did take place, and was followed out into its consequences. The likeness had occurred to other minds previously, but not with the same results. Such minds must have been in some way or other distinguished above the millions of mankind; and we are now endeavoring to give the explanation of their superiority. The intellectual character of Watt³⁵¹ contained all the elements preparatory to a great stroke of similarity in such a case; -- a high susceptibility, both by nature and by education, to the mechanical properties of bodies; ample previous knowledge or familiarity; and indifference to the superficial and sensational effects of things. It is not only possible, however, but exceedingly probable, that many men possessed³⁰⁷ all these accomplishments³⁵²; they are of a kind not transcending³⁵³ common abilities. They would in some degree attach to a mechanical education almost as a matter of course. That the discovery was not sooner made supposes that something farther, and not of common occurrence, was necessary; and this additional endowment appears to be the identifying power of Similarity in general; the tendency to detect likeness in the midst of disparity and disguise. This supposition accounts for the fact, and is consistent with the known intellectual character of the inventor of the steam-engine."42

Dr. Hodgson's account of association is by all odds³⁵⁴ the best yet propounded in English.43 All these writers hold more or less explicitly³⁵⁵ to the notion of atomistic 'ideas' which recur. In Germany, the same mythological supposition has been more radically³⁵⁶ grasped, and carried out to a still more logical, if more repulsive³⁵⁷, extreme, by Herbart44 and his followers³⁵⁸, who until recently may be said to have reigned³⁵⁹ almost supreme³⁶⁰ in their native country.45 For Herbart each idea is a permanently³⁶¹ existing entity²¹⁵, the entrance whereof into consciousness is but an accidental determination of its being. So far as it succeeds in occupying the theatre of consciousness, it crowds out another idea previously there. This act of inhibition gives it, however, a sort of hold on the other representation which on all later occasions facilitates its following the other into the mind. The ingenuity³⁶² with which most special cases of association are formulated in this mechanical language of struggle and inhibition, is great, and surpasses in analytic³⁶³ thoroughness anything that has been done by the British school. This, however, is a doubtful merit, in a case where the elements dealt with are artificial; and I must confess that to my mind there is something almost hideous³⁶⁴ in the glib³⁶⁵ Herbartian jargon³⁶⁶ about Vorstellungsmassen and their Hemmungen and Hemmungssummen, and sinken and erheben and schweben, and Verschmelzungen and Complexionen. Herr Lipps, the most recent systematic German Psychologist, has, I regret to say, carried out the theory of ideas in a way which the great originality³⁶⁷, learning, and acuteness he shows make only the more regrettable.46 Such elaborately artificial constructions are, it seems to me, only a burden and a hindrance³⁶⁸, not a help, to our science.47

In French, M. Rabier in his chapter on Association,48 handles the subject more vigorously and acutely than any one. His treatment of it, though short, seems to me for general soundness to rank second only to Hodgson's.

In the last chapter we already invoked association to account for the effect of use in improving discrimination. In later chapters we shall see abundant proof of the immense part which it plays in other processes, and shall then readily admit that few principles of analysis, in any science, have proved more fertile than this one, however vaguely³⁶⁹ formulated it often may have been. Our own attempt to formulate²⁴ it more definitely, and to escape the usual confusion between causal agencies and relations merely known, must not blind us to the immense services of those by whom the confusion was unfelt. From this practical point of view it would be a true ignoratio elenchi to flatter one's self that one has dealt a heavy blow at the psychology of association, when one has exploded the theory of atomistic ideas, or shown that contiguity and similarity between ideas can only be there after association is done.49 The whole body of the associationist psychology remains standing after you have translated 'ideas' into 'objects,' on the one hand, and 'brain-processes' on the other; and the analysis of faculties and operations is as conclusive in these terms as in those traditionally used.

 

 

1 invoke   

v.求助于(神、法律)；恳求，乞求

参考例句：

• Let us invoke the blessings of peace.让我们祈求和平之福。
• I hope I'll never have to invoke this clause and lodge a claim with you.我希望我永远不会使用这个条款向你们索赔。

2 pro   

n.赞成，赞成的意见，赞成者

参考例句：

• The two debating teams argued the question pro and con.辩论的两组从赞成与反对两方面辩这一问题。
• Are you pro or con nuclear disarmament?你是赞成还是反对核裁军？

3 distinguished   

adj.卓越的，杰出的，著名的

参考例句：

• Elephants are distinguished from other animals by their long noses.大象以其长长的鼻子显示出与其他动物的不同。
• A banquet was given in honor of the distinguished guests.宴会是为了向贵宾们致敬而举行的。

4 analyzed   

v.分析( analyze的过去式和过去分词 )；分解；解释；对…进行心理分析

参考例句：

• The doctors analyzed the blood sample for anemia. 医生们分析了贫血的血样。 来自《简明英汉词典》
• The young man did not analyze the process of his captivation and enrapturement, for love to him was a mystery and could not be analyzed. 这年轻人没有分析自己蛊惑著迷的过程，因为对他来说，爱是个不可分析的迷。 来自《简明英汉词典》

5 incessantly   

ad.不停地

参考例句：

• The machines roar incessantly during the hours of daylight. 机器在白天隆隆地响个不停。
• It rained incessantly for the whole two weeks. 雨不间断地下了整整两个星期。

6 asunder   

adj.分离的，化为碎片

参考例句：

• The curtains had been drawn asunder.窗帘被拉向两边。
• Your conscience,conviction,integrity,and loyalties were torn asunder.你的良心、信念、正直和忠诚都被扯得粉碎了。

7 abrupt   

adj.突然的，意外的；唐突的，鲁莽的

参考例句：

• The river takes an abrupt bend to the west.这河突然向西转弯。
• His abrupt reply hurt our feelings.他粗鲁的回答伤了我们的感情。

8 abruptness   

n. 突然，唐突

参考例句：

• He hid his feelings behind a gruff abruptness. 他把自己的感情隐藏在生硬鲁莽之中。
• Suddenly Vanamee returned to himself with the abruptness of a blow. 伐那米猛地清醒过来，象挨到了当头一拳似的。

9 scrutinized   

v.仔细检查，详审( scrutinize的过去式和过去分词 )

参考例句：

• The jeweler scrutinized the diamond for flaws. 宝石商人仔细察看钻石有无瑕庇 来自《现代英汉综合大词典》
• Together we scrutinized the twelve lemon cakes from the delicatessen shop. 我们一起把甜食店里买来的十二块柠檬蛋糕细细打量了一番。 来自英汉文学 - 盖茨比

10 prop   

vt.支撑；n.支柱，支撑物；支持者，靠山

参考例句：

• A worker put a prop against the wall of the tunnel to keep it from falling.一名工人用东西支撑住隧道壁好使它不会倒塌。
• The government does not intend to prop up declining industries.政府无意扶持不景气的企业。

11 propriety   

n.正当行为；正当；适当

参考例句：

• We hesitated at the propriety of the method.我们对这种办法是否适用拿不定主意。
• The sensitive matter was handled with great propriety.这件机密的事处理得极为适当。

12 admiration   

n.钦佩，赞美，羡慕

参考例句：

• He was lost in admiration of the beauty of the scene.他对风景之美赞不绝口。
• We have a great admiration for the gold medalists.我们对金牌获得者极为敬佩。

13 banish   

vt.放逐，驱逐；消除，排除

参考例句：

• The doctor advised her to banish fear and anxiety.医生劝她消除恐惧和忧虑。
• He tried to banish gloom from his thought.他试图驱除心中的忧愁。

14 formulating   

v.构想出( formulate的现在分词 )；规划；确切地阐述；用公式表示

参考例句：

• At present, the Chinese government is formulating nationwide regulations on the control of such chemicals. 目前，中国政府正在制定全国性的易制毒化学品管理条例。 来自汉英非文学 - 白皮书
• Because of this, the U.S. has taken further steps in formulating the \"Magellan\" programme. 为此，美国又进一步制定了“麦哲伦”计划。 来自百科语句

15 ascertain   

vt.发现，确定，查明，弄清

参考例句：

• It's difficult to ascertain the coal deposits.煤储量很难探明。
• We must ascertain the responsibility in light of different situtations.我们必须根据不同情况判定责任。

16 ascertaining   

v.弄清，确定，查明( ascertain的现在分词 )

参考例句：

• I was ascertaining whether the cellar stretched out in front or behind. 我当时是要弄清楚地下室是朝前还是朝后延伸的。 来自辞典例句
• The design and ascertaining of permanent-magnet-biased magnetic bearing parameter are detailed introduced. 并对永磁偏置磁悬浮轴承参数的设计和确定进行了详细介绍。 来自互联网

17 sprout   

n.芽，萌芽；vt.使发芽，摘去芽；vi.长芽，抽条

参考例句：

• When do deer first sprout horns?鹿在多大的时候开始长出角？
• It takes about a week for the seeds to sprout.这些种子大约要一周后才会发芽。

18 peculiar   

adj.古怪的，异常的；特殊的，特有的

参考例句：

• He walks in a peculiar fashion.他走路的样子很奇特。
• He looked at me with a very peculiar expression.他用一种很奇怪的表情看着我。

19 immediate   

adj.立即的；直接的，最接近的；紧靠的

参考例句：

• His immediate neighbours felt it their duty to call.他的近邻认为他们有责任去拜访。
• We declared ourselves for the immediate convocation of the meeting.我们主张立即召开这个会议。

20 ambiguity   

n.模棱两可；意义不明确

参考例句：

• The telegram was misunderstood because of its ambiguity.由于电文意义不明确而造成了误解。
• Her answer was above all ambiguity.她的回答毫不含糊。

21 entirely   

ad.全部地，完整地；完全地，彻底地

参考例句：

• The fire was entirely caused by their neglect of duty. 那场火灾完全是由于他们失职而引起的。
• His life was entirely given up to the educational work. 他的一生统统献给了教育工作。

22 hop   

n.单脚跳，跳跃；vi.单脚跳，跳跃；着手做某事；vt.跳跃，跃过

参考例句：

• The children had a competition to see who could hop the fastest.孩子们举行比赛，看谁单足跳跃最快。
• How long can you hop on your right foot?你用右脚能跳多远？

23 din   

n.喧闹声，嘈杂声

参考例句：

• The bustle and din gradually faded to silence as night advanced.随着夜越来越深，喧闹声逐渐沉寂。
• They tried to make themselves heard over the din of the crowd.他们力图让自己的声音盖过人群的喧闹声。

24 formulate   

v.用公式表示；规划；设计；系统地阐述

参考例句：

• He took care to formulate his reply very clearly.他字斟句酌，清楚地做了回答。
• I was impressed by the way he could formulate his ideas.他陈述观点的方式让我印象深刻。

25 formulated   

v.构想出( formulate的过去式和过去分词 )；规划；确切地阐述；用公式表示

参考例句：

• He claims that the writer never consciously formulated his own theoretical position. 他声称该作家从未有意识地阐明他自己的理论见解。 来自《简明英汉词典》
• This idea can be formulated in two different ways. 这个意思可以有两种说法。 来自《现代汉英综合大词典》

26 tenant   

n.承租人；房客；佃户；v.租借，租用

参考例句：

• The tenant was dispossessed for not paying his rent.那名房客因未付房租而被赶走。
• The tenant is responsible for all repairs to the building.租户负责对房屋的所有修理。

27 literally   

adv.照字面意义，逐字地；确实

参考例句：

• He translated the passage literally.他逐字逐句地翻译这段文字。
• Sometimes she would not sit down till she was literally faint.有时候，她不走到真正要昏厥了，决不肯坐下来。

28 ego   

n.自我，自己，自尊

参考例句：

• He is absolute ego in all thing.在所有的事情上他都绝对自我。
• She has been on an ego trip since she sang on television.她上电视台唱过歌之后就一直自吹自擂。

29 standing   

n.持续，地位；adj.永久的，不动的，直立的，不流动的

参考例句：

• After the earthquake only a few houses were left standing.地震过后只有几幢房屋还立着。
• They're standing out against any change in the law.他们坚决反对对法律做任何修改。

30 sterility   

n.不生育，不结果，贫瘠，消毒，无菌

参考例句：

• A major barrier to interspecific hybridization is sterility in the F1 progeny.种间杂交的主要障碍是F1代的不育性。
• Sterility is some permanent factor preventing procreation.不育是阻碍生殖的一种永久性因素。

31 dismal   

adj.阴沉的，凄凉的，令人忧郁的，差劲的

参考例句：

• That is a rather dismal melody.那是一支相当忧郁的歌曲。
• My prospects of returning to a suitable job are dismal.我重新找到一个合适的工作岗位的希望很渺茫。

32 wilderness   

n.杳无人烟的一片陆地、水等，荒漠

参考例句：

• She drove the herd of cattle through the wilderness.她赶着牛群穿过荒野。
• Education in the wilderness is not a matter of monetary means.荒凉地区的教育不是钱财问题。

33 evoke   

vt.唤起，引起，使人想起

参考例句：

• These images are likely to evoke a strong response in the viewer.这些图像可能会在观众中产生强烈反响。
• Her only resource was the sympathy she could evoke.她以凭借的唯一力量就是她能从人们心底里激起的同情。

34 bonnet   

n.无边女帽；童帽

参考例句：

• The baby's bonnet keeps the sun out of her eyes.婴孩的帽子遮住阳光，使之不刺眼。
• She wore a faded black bonnet garnished with faded artificial flowers.她戴着一顶褪了色的黑色无边帽，帽上缀着褪了色的假花。

35 marrow   

n.骨髓；精华；活力

参考例句：

• It was so cold that he felt frozen to the marrow. 天气太冷了，他感到寒冷刺骨。
• He was tired to the marrow of his bones.他真是累得筋疲力尽了。

36 grotesque   

adj.怪诞的，丑陋的；n.怪诞的图案，怪人（物）

参考例句：

• His face has a grotesque appearance.他的面部表情十分怪。
• Her account of the incident was a grotesque distortion of the truth.她对这件事的陈述是荒诞地歪曲了事实。

37 utterly   

adv.完全地，绝对地

参考例句：

• Utterly devoted to the people,he gave his life in saving his patients.他忠于人民，把毕生精力用于挽救患者的生命。
• I was utterly ravished by the way she smiled.她的微笑使我完全陶醉了。

38 irrelevant   

adj.不恰当的，无关系的，不相干的

参考例句：

• That is completely irrelevant to the subject under discussion.这跟讨论的主题完全不相关。
• A question about arithmetic is irrelevant in a music lesson.在音乐课上，一个数学的问题是风马牛不相及的。

39 irrational   

adj.无理性的，失去理性的

参考例句：

• After taking the drug she became completely irrational.她在吸毒后变得完全失去了理性。
• There are also signs of irrational exuberance among some investors.在某些投资者中是存在非理性繁荣的征象的。

40 arbiter   

n.仲裁人，公断人

参考例句：

• Andrew was the arbiter of the disagreement.安德鲁是那场纠纷的仲裁人。
• Experiment is the final arbiter in science.实验是科学的最后仲裁者。

41 worthy   

adj.(of)值得的，配得上的；有价值的

参考例句：

• I did not esteem him to be worthy of trust.我认为他不值得信赖。
• There occurred nothing that was worthy to be mentioned.没有值得一提的事发生。

42 folly   

n.愚笨，愚蠢，蠢事，蠢行，傻话

参考例句：

• Learn wisdom by the folly of others.从别人的愚蠢行动中学到智慧。
• Events proved the folly of such calculations.事情的进展证明了这种估计是愚蠢的。

43 ethics   

n.伦理学；伦理观，道德标准

参考例句：

• The ethics of his profession don't permit him to do that.他的职业道德不允许他那样做。
• Personal ethics and professional ethics sometimes conflict.个人道德和职业道德有时会相互抵触。

44 continental   

adj.大陆的，大陆性的，欧洲大陆的

参考例句：

• A continental climate is different from an insular one.大陆性气候不同于岛屿气候。
• The most ancient parts of the continental crust are 4000 million years old.大陆地壳最古老的部分有40亿年历史。

45 aberrations   

n.偏差( aberration的名词复数 )；差错；脱离常规；心理失常

参考例句：

• These events were aberrations from the norm. 这些事件不合常规。 来自辞典例句
• These chromosome aberrations are all stable, compatible with cell viability. 这些染色体畸变都是稳定的，不影响细胞生活力的。 来自辞典例句

46 frustrations   

挫折( frustration的名词复数 )； 失败； 挫败； 失意

参考例句：

• The temptation would grow to take out our frustrations on Saigon. 由于我们遭到挫折而要同西贡算帐的引诱力会增加。
• Aspirations will be raised, but so will frustrations. 人们会产生种种憧憬，但是种种挫折也会随之而来。

47 contiguity   

n.邻近，接壤

参考例句：

• The contiguity of the house and the garage was a convenience in bad weather.住宅和车库毗邻，这在天气不好的时候是很方便的。
• Scientists want to investigate the relation between xerophthalmia occurrence and smut contiguity.科学家们打算探讨干眼症与煤尘接触之间的关系。

48 habitual   

adj.习惯性的；通常的，惯常的

参考例句：

• He is a habitual criminal.他是一个惯犯。
• They are habitual visitors to our house.他们是我家的常客。

49 lamely   

一瘸一拐地，不完全地

参考例句：

• I replied lamely that I hope to justify his confidence. 我漫不经心地回答说，我希望我能不辜负他对我的信任。
• The wolf leaped lamely back, losing its footing and falling in its weakness. 那只狼一跛一跛地跳回去，它因为身体虚弱，一失足摔了一跤。

50 psychic   

n.对超自然力敏感的人；adj.有超自然力的

参考例句：

• Some people are said to have psychic powers.据说有些人有通灵的能力。
• She claims to be psychic and to be able to foretell the future.她自称有特异功能，能预知未来。

51 purely   

adv.纯粹地，完全地

参考例句：

• I helped him purely and simply out of friendship.我帮他纯粹是出于友情。
• This disproves the theory that children are purely imitative.这证明认为儿童只会单纯地模仿的理论是站不住脚的。

52 phenomena   

n.现象

参考例句：

• Ade couldn't relate the phenomena with any theory he knew.艾德无法用他所知道的任何理论来解释这种现象。
• The object of these experiments was to find the connection,if any,between the two phenomena.这些实验的目的就是探索这两种现象之间的联系，如果存在着任何联系的话。

53 cerebral   

adj.脑的，大脑的；有智力的，理智型的

参考例句：

• Your left cerebral hemisphere controls the right-hand side of your body.你的左半脑控制身体的右半身。
• He is a precise,methodical,cerebral man who carefully chooses his words.他是一个一丝不苟、有条理和理智的人，措辞谨慎。

54 physiology   

n.生理学，生理机能

参考例句：

• He bought a book about physiology.他买了一本生理学方面的书。
• He was awarded the Nobel Prize for achievements in physiology.他因生理学方面的建树而被授予诺贝尔奖。

55 doctrine   

n.教义；主义；学说

参考例句：

• He was impelled to proclaim his doctrine.他不得不宣扬他的教义。
• The council met to consider changes to doctrine.宗教议会开会考虑更改教义。

56 tainted   

adj.腐坏的；污染的；沾污的；感染的v.使变质( taint的过去式和过去分词 )；使污染；败坏；被污染，腐坏，败坏

参考例句：

• The administration was tainted with scandal. 丑闻使得政府声名狼藉。
• He was considered tainted by association with the corrupt regime. 他因与腐败政府有牵连而名誉受损。 来自《简明英汉词典》

57 immutable   

adj.不可改变的，永恒的

参考例句：

• Nothing in the world is immutable.世界没有一成不变的东西。
• They free our minds from considering our world as fixed and immutable.它们改变着人们将世界看作是永恒不变的观点。

58 recurring   

adj.往复的，再次发生的

参考例句：

• This kind of problem is recurring often. 这类问题经常发生。
• For our own country, it has been a time for recurring trial. 就我们国家而言，它经过了一个反复考验的时期。

59 recur   

vi.复发，重现，再发生

参考例句：

• Economic crises recur periodically.经济危机周期性地发生。
• Of course,many problems recur at various periods.当然，有许多问题会在不同的时期反复提出。

60 cohesion   

n.团结，凝结力

参考例句：

• I had to bring some cohesion into the company.我得使整个公司恢复凝聚力。
• The power of culture is deeply rooted in the vitality,creativity and cohesion of a nation. 文化的力量，深深熔铸在民族的生命力、创造力和凝聚力之中。

61 mythological   

adj.神话的

参考例句：

• He is remembered for his historical and mythological works. 他以其带有历史感和神话色彩的作品而著称。
• But even so, the cumulative process had for most Americans a deep, almost mythological significance. 不过即使如此，移民渐增的过程，对于大部分美国人，还是意味深长的，几乎有不可思议的影响。

62 generalization   

n.普遍性，一般性，概括

参考例句：

• This sweeping generalization is the law of conservation of energy.这一透彻的概括就是能量守恒定律。
• The evaluation of conduct involves some amount of generalization.对操行的评价会含有一些泛泛之论。

63 afterward   

adv.后来；以后

参考例句：

• Let's go to the theatre first and eat afterward. 让我们先去看戏，然后吃饭。
• Afterward,the boy became a very famous artist.后来，这男孩成为一个很有名的艺术家。

64 awakens   

v.（使）醒( awaken的第三人称单数 )；（使）觉醒；弄醒；（使）意识到

参考例句：

• The scene awakens reminiscences of my youth. 这景象唤起我年轻时的往事。 来自《现代英汉综合大词典》
• The child awakens early in the morning. 这个小孩早晨醒得早。 来自辞典例句

65 awaken   

vi.醒，觉醒；vt.唤醒，使觉醒，唤起，激起

参考例句：

• Old people awaken early in the morning.老年人早晨醒得早。
• Please awaken me at six.请于六点叫醒我。

66 inveterate   

adj.积习已深的，根深蒂固的

参考例句：

• Hitler was not only an avid reader but also an inveterate underliner.希特勒不仅酷爱读书，还有写写划划的习惯。
• It is hard for an inveterate smoker to give up tobacco.要一位有多年烟瘾的烟民戒烟是困难的。

67 accurately   

adv.准确地，精确地

参考例句：

• It is hard to hit the ball accurately.准确地击中球很难。
• Now scientists can forecast the weather accurately.现在科学家们能准确地预报天气。

68 reiterated   

反复地说，重申( reiterate的过去式和过去分词 )

参考例句：

• "Well, I want to know about it,'she reiterated. “嗯，我一定要知道你的休假日期，"她重复说。 来自英汉文学 - 嘉莉妹妹
• Some twenty-two years later President Polk reiterated and elaborated upon these principles. 大约二十二年之后，波尔克总统重申这些原则并且刻意阐释一番。

69 doggerel   

n.拙劣的诗，打油诗

参考例句：

• The doggerel doesn't filiate itself.这首打油诗没有标明作者是谁。
• He styled his poem doggerel.他把他的这首诗歌叫做打油诗。

70 cohering   

v.黏合( cohere的现在分词 )；联合；结合；（指看法、推理等）前后一致

参考例句：

• It is necessary for cohering public feeling and inspiring fighting will to cultivate and publicize models. 摘要积极培养与宣传典型对凝聚人心、鼓舞斗志、推动工作很有必要。 来自互联网
• Objective To explore the relation between meridians cohering on the organism and channel and point-entrails effect. 目的探讨经脉线的附着组织与经穴—脏腑效应之间的关系。 来自互联网

71 fixed   

adj.固定的，不变的，准备好的；(计算机)固定的

参考例句：

• Have you two fixed on a date for the wedding yet?你们俩选定婚期了吗？
• Once the aim is fixed,we should not change it arbitrarily.目标一旦确定，我们就不应该随意改变。

72 tingling   

v.有刺痛感( tingle的现在分词 )

参考例句：

• My ears are tingling [humming; ringing; singing]. 我耳鸣。 来自《现代汉英综合大词典》
• My tongue is tingling. 舌头发麻。 来自《现代汉英综合大词典》

73 habitually   

ad.习惯地，通常地

参考例句：

• The pain of the disease caused him habitually to furrow his brow. 病痛使他习惯性地紧皱眉头。
• Habitually obedient to John, I came up to his chair. 我已经习惯于服从约翰，我来到他的椅子跟前。

74 deluged   

v.使淹没( deluge的过去式和过去分词 )；淹没；被洪水般涌来的事物所淹没；穷于应付

参考例句：

• The minister was deluged with questions. 部长穷于应付像洪水般涌来的问题。 来自《简明英汉词典》
• They deluged me with questions. 他们向我连珠发问。 来自《简明英汉词典》

75 component   

n.组成部分，成分，元件；adj.组成的，合成的

参考例句：

• Each component is carefully checked before assembly.每个零件在装配前都经过仔细检查。
• Blade and handle are the component parts of a knife.刀身和刀柄是一把刀的组成部分。

76 blindfold   

vt.蒙住…的眼睛；adj.盲目的；adv.盲目地；n.蒙眼的绷带[布等]； 障眼物，蒙蔽人的事物

参考例句：

• They put a blindfold on a horse.他们给马蒙上遮眼布。
• I can do it blindfold.我闭着眼睛都能做。

77 revival   

n.复兴，复苏，（精力、活力等的）重振

参考例句：

• The period saw a great revival in the wine trade.这一时期葡萄酒业出现了很大的复苏。
• He claimed the housing market was showing signs of a revival.他指出房地产市场正出现复苏的迹象。

78 cohere   

vt.附着，连贯，一致

参考例句：

• The adornments do not cohere with the basic design.装饰物与设计的基调不协调。
• When you squeeze a handful of snow,the flakes cohere to make a snowball.你把一团雪捏紧，雪就黏合成雪球。

79 cohered   

v.黏合( cohere的过去式和过去分词 )；联合；结合；（指看法、推理等）前后一致

参考例句：

• Friendship, to be cohered due to my pursuits and effort. 友谊，因我的追求与努力而凝聚。 来自互联网
• Powerful human resources flow flowcapital flow and trade flow have integrated and cohered all around. 强大的人才流、信息流、资金流、贸易流全方位交汇贯通。 来自互联网

80 lust   

n.性(淫)欲；渴(欲)望；vi.对…有强烈的欲望

参考例句：

• He was filled with lust for power.他内心充满了对权力的渴望。
• Sensing the explorer's lust for gold, the chief wisely presented gold ornaments as gifts.酋长觉察出探险者们垂涎黄金的欲念，就聪明地把金饰品作为礼物赠送给他们。

81 stimulation   

n.刺激，激励，鼓舞

参考例句：

• The playgroup provides plenty of stimulation for the children.幼儿游戏组给孩子很多启发。
• You don't get any intellectual stimulation in this job.你不能从这份工作中获得任何智力启发。

82 coalesced   

v.联合，合并( coalesce的过去式和过去分词 )

参考例句：

• The puddles had coalesced into a small stream. 地面上水洼子里的水汇流成了一条小溪。
• The views of party leaders coalesced to form a coherent policy. 党的领导人的各种观点已统一为一致的政策。 来自辞典例句

83 savor   

vt.品尝，欣赏；n.味道，风味；情趣，趣味

参考例句：

• The soup has a savor of onion.这汤有洋葱味。
• His humorous remarks added a savor to our conversation.他幽默的话语给谈话增添了风趣。

84 forth   

adv.向前；向外，往外

参考例句：

• The wind moved the trees gently back and forth.风吹得树轻轻地来回摇晃。
• He gave forth a series of works in rapid succession.他很快连续发表了一系列的作品。

85 glossy   

adj.平滑的；有光泽的

参考例句：

• I like these glossy spots.我喜欢这些闪闪发光的花点。
• She had glossy black hair.她长着乌黑发亮的头发。

86 resuscitated   

v.使（某人或某物）恢复知觉，苏醒( resuscitate的过去式和过去分词 )

参考例句：

• The doctor resuscitated the man who was overcome by gas. 医生救活了那个煤气中毒的人。 来自《现代英汉综合大词典》
• She had been literally rejuvenated, resuscitated, brought back from the lip of the grave. 她确确实实返老还童了，恢复了精力，被从坟墓的进口处拉了回来。 来自辞典例句

87 wont   

adj.习惯于；v.习惯；n.习惯

参考例句：

• He was wont to say that children are lazy.他常常说小孩子们懒惰。
• It is his wont to get up early.早起是他的习惯。

88 staple   

n.主要产物，常用品，主要要素，原料，订书钉，钩环；adj.主要的，重要的；vt.分类

参考例句：

• Tea is the staple crop here.本地产品以茶叶为大宗。
• Potatoes are the staple of their diet.土豆是他们的主要食品。

89 desolate   

adj.荒凉的，荒芜的；孤独的，凄凉的；v.使荒芜，使孤寂

参考例句：

• The city was burned into a desolate waste.那座城市被烧成一片废墟。
• We all felt absolutely desolate when she left.她走后，我们都觉得万分孤寂。

90 jointed   

有接缝的

参考例句：

• To embrace her was like embracing a jointed wooden image. 若是拥抱她，那感觉活像拥抱一块木疙瘩。 来自英汉文学
• It is possible to devise corresponding systematic procedures for rigid jointed frames. 推导出适合于钢架的类似步骤也是可能的。

91 fig   

n.无花果(树)

参考例句：

• The doctor finished the fig he had been eating and selected another.这位医生吃完了嘴里的无花果，又挑了一个。
• You can't find a person who doesn't know fig in the United States.你找不到任何一个在美国的人不知道无花果的。

92 inversely   

adj.相反的

参考例句：

• Pressure varies directly with temperature and inversely with volume. 压力随温度成正比例变化，与容积成反比例变化。 来自《简明英汉词典》
• The amount of force needed is inversely proportional to the rigidity of the material. 需要的力度与材料的硬度成反比。 来自《简明英汉词典》

93 fully   

adv.完全地，全部地，彻底地；充分地

参考例句：

• The doctor asked me to breathe in,then to breathe out fully.医生让我先吸气，然后全部呼出。
• They soon became fully integrated into the local community.他们很快就完全融入了当地人的圈子。

94 protracted   

adj.拖延的；延长的v.拖延“protract”的过去式和过去分词

参考例句：

• The war was protracted for four years. 战争拖延了四年。 来自《简明英汉词典》
• We won victory through protracted struggle. 经过长期的斗争，我们取得了胜利。 来自《简明英汉词典》

95 protract   

v.延长，拖长

参考例句：

• The inspector informed us that he was to protract his stay for some days.督察通知我们他将在此多呆几天。
• Let's not protract the debate any further.我们不要再继续争论下去了。

96 tract   

n.传单，小册子，大片(土地或森林)

参考例句：

• He owns a large tract of forest.他拥有一大片森林。
• He wrote a tract on this subject.他曾对此写了一篇短文。

97 integration   

n.一体化，联合，结合

参考例句：

• We are working to bring about closer political integration in the EU.我们正在努力实现欧盟內部更加紧密的政治一体化。
• This was the greatest event in the annals of European integration.这是欧洲统一史上最重大的事件。

98 aggregate   

adj.总计的，集合的；n.总数；v.合计；集合

参考例句：

• The football team had a low goal aggregate last season.这支足球队上个赛季的进球总数很少。
• The money collected will aggregate a thousand dollars.进帐总额将达一千美元。

99 acoustic   

adj.听觉的，声音的；(乐器)原声的

参考例句：

• The hall has a fine acoustic.这个大厅的传音效果很好。
• Animals use a whole rang of acoustic, visual,and chemical signals in their systems of communication.动物利用各种各样的听觉、视觉和化学信号来进行交流。

100 apparatus   

n.装置，器械；器具，设备

参考例句：

• The school's audio apparatus includes films and records.学校的视听设备包括放映机和录音机。
• They had a very refined apparatus.他们有一套非常精良的设备。

101 awakened   

v.（使）醒( awaken的过去式和过去分词 )；（使）觉醒；弄醒；（使）意识到

参考例句：

• She awakened to the sound of birds singing. 她醒来听到鸟的叫声。
• The public has been awakened to the full horror of the situation. 公众完全意识到了这一状况的可怕程度。 来自《简明英汉词典》

102 physiological   

adj.生理学的，生理学上的

参考例句：

• He bought a physiological book.他买了一本生理学方面的书。
• Every individual has a physiological requirement for each nutrient.每个人对每种营养成分都有一种生理上的需要。

103 mere   

adj.纯粹的；仅仅，只不过

参考例句：

• That is a mere repetition of what you said before.那不过是重复了你以前讲的话。
• It's a mere waste of time waiting any longer.再等下去纯粹是浪费时间。

104 determined   

adj.坚定的；有决心的

参考例句：

• I have determined on going to Tibet after graduation.我已决定毕业后去西藏。
• He determined to view the rooms behind the office.他决定查看一下办公室后面的房间。

105 noted   

adj.著名的，知名的

参考例句：

• The local hotel is noted for its good table.当地的那家酒店以餐食精美而著称。
• Jim is noted for arriving late for work.吉姆上班迟到出了名。

106 revolving   

adj.旋转的，轮转式的；循环的v.（使）旋转( revolve的现在分词 )；细想

参考例句：

• The theatre has a revolving stage. 剧院有一个旋转舞台。
• The company became a revolving-door workplace. 这家公司成了工作的中转站。

107 slit   

n.狭长的切口；裂缝；vt.切开，撕裂

参考例句：

• The coat has been slit in two places.这件外衣有两处裂开了。
• He began to slit open each envelope.他开始裁开每个信封。

108 overlap   

v.重叠，与…交叠；n.重叠

参考例句：

• The overlap between the jacket and the trousers is not good.夹克和裤子重叠的部分不好看。
• Tiles overlap each other.屋瓦相互叠盖。

109 undoubtedly   

adv.确实地，无疑地

参考例句：

• It is undoubtedly she who has said that.这话明明是她说的。
• He is undoubtedly the pride of China.毫无疑问他是中国的骄傲。

110 accounting   

n.会计，会计学，借贷对照表

参考例句：

• A job fell vacant in the accounting department.财会部出现了一个空缺。
• There's an accounting error in this entry.这笔账目里有差错。

111 sensory   

adj.知觉的，感觉的，知觉器官的

参考例句：

• Human powers of sensory discrimination are limited.人类感官分辨能力有限。
• The sensory system may undergo long-term adaptation in alien environments.感觉系统对陌生的环境可能经过长时期才能适应。

112 thereby   

adv.因此，从而

参考例句：

• I have never been to that city,,ereby I don't know much about it.我从未去过那座城市，因此对它不怎么熟悉。
• He became a British citizen,thereby gaining the right to vote.他成了英国公民，因而得到了投票权。

113 awakening   

n.觉醒，醒悟 adj.觉醒中的；唤醒的

参考例句：

• the awakening of interest in the environment 对环境产生的兴趣
• People are gradually awakening to their rights. 人们正逐渐意识到自己的权利。

114 tracts   

大片土地( tract的名词复数 )； 地带； （体内的）道； （尤指宣扬宗教、伦理或政治的）短文

参考例句：

• vast tracts of forest 大片大片的森林
• There are tracts of desert in Australia. 澳大利亚有大片沙漠。

115 recollect   

v.回忆，想起，记起，忆起，记得

参考例句：

• He tried to recollect things and drown himself in them.他极力回想过去的事情而沉浸于回忆之中。
• She could not recollect being there.她回想不起曾经到过那儿。

116 summation   

n.总和；最后辩论

参考例句：

• The exhibition was a summation of his life's work.这次展览汇集了他一生中典型的作品。
• The defense attorney phrased his summation at last.最后，辩护律师作了辩论总结。

117 stimuli   

n.刺激（物）

参考例句：

• It is necessary to curtail or alter normally coexisting stimuli.必需消除或改变正常时并存的刺激。
• My sweat glands also respond to emotional stimuli.我的汗腺对情绪刺激也能产生反应。

118 incapable   

adj.无能力的，不能做某事的

参考例句：

• He would be incapable of committing such a cruel deed.他不会做出这么残忍的事。
• Computers are incapable of creative thought.计算机不会创造性地思维。

119 functional   

adj.为实用而设计的，具备功能的，起作用的

参考例句：

• The telephone was out of order,but is functional now.电话刚才坏了，但现在可以用了。
• The furniture is not fancy,just functional.这些家具不是摆着好看的，只是为了实用。

120 indirectly   

adv.间接地，不直接了当地

参考例句：

• I heard the news indirectly.这消息我是间接听来的。
• They were approached indirectly through an intermediary.通过一位中间人，他们进行了间接接触。

121 excavated   

v.挖掘( excavate的过去式和过去分词 )；开凿；挖出；发掘

参考例句：

• The site has been excavated by archaeologists. 这个遗址已被考古学家发掘出来。
• The archaeologists excavated an ancient fortress. 考古学家们发掘出一个古堡。 来自《简明英汉词典》

122 neural   

adj.神经的，神经系统的

参考例句：

• The neural network can preferably solve the non- linear problem.利用神经网络建模可以较好地解决非线性问题。
• The information transmission in neural system depends on neurotransmitters.信息传递的神经途径有赖于神经递质。

123 vibrations   

n.摆动( vibration的名词复数 )；震动；感受；（偏离平衡位置的）一次性往复振动

参考例句：

• We could feel the vibrations from the trucks passing outside. 我们可以感到外面卡车经过时的颤动。
• I am drawn to that girl; I get good vibrations from her. 我被那女孩吸引住了，她使我产生良好的感觉。 来自《简明英汉词典》

124 contiguities   

n.接近( contiguity的名词复数 )；一连串的事物；一系列；一大片

参考例句：

125 inevitably   

adv.不可避免地；必然发生地

参考例句：

• In the way you go on,you are inevitably coming apart.照你们这样下去，毫无疑问是会散伙的。
• Technological changes will inevitably lead to unemployment.技术变革必然会导致失业。

126 perfectly   

adv.完美地，无可非议地，彻底地

参考例句：

• The witnesses were each perfectly certain of what they said.证人们个个对自己所说的话十分肯定。
• Everything that we're doing is all perfectly above board.我们做的每件事情都是光明正大的。

127 overflowing   

n. 溢出物,溢流 adj. 充沛的，充满的 动词overflow的现在分词形式

参考例句：

• The stands were overflowing with farm and sideline products. 集市上农副产品非常丰富。
• The milk is overflowing. 牛奶溢出来了。

128 overflow   

v.(使)外溢，(使)溢出；溢出，流出，漫出

参考例句：

• The overflow from the bath ran on to the floor.浴缸里的水溢到了地板上。
• After a long period of rain,the river may overflow its banks.长时间的下雨天后，河水可能溢出岸来。

129 pedantic   

adj.卖弄学问的；迂腐的

参考例句：

• He is learned,but neither stuffy nor pedantic.他很博学，但既不妄自尊大也不卖弄学问。
• Reading in a pedantic way may turn you into a bookworm or a bookcase,and has long been opposed.读死书会变成书呆子，甚至于成为书橱，早有人反对过了。

130 formerly   

adv.从前，以前

参考例句：

• We now enjoy these comforts of which formerly we had only heard.我们现在享受到了过去只是听说过的那些舒适条件。
• This boat was formerly used on the rivers of China.这船从前航行在中国内河里。

131 vicissitudes   

n.变迁，世事变化；变迁兴衰( vicissitude的名词复数 )；盛衰兴废

参考例句：

• He experienced several great social vicissitudes in his life. 他一生中经历了几次大的社会变迁。 来自《简明英汉词典》
• A man used to vicissitudes is not easily dejected. 饱经沧桑，不易沮丧。 来自《简明英汉词典》

132 quantitative   

adj.数量的，定量的

参考例句：

• He said it was only a quantitative difference.他说这仅仅是数量上的差别。
• We need to do some quantitative analysis of the drugs.我们对药物要进行定量分析。

133 derivatives   

n.衍生性金融商品；派生物，引出物( derivative的名词复数 )；导数

参考例句：

• Many English words are derivatives of Latin words. 许多英语词来自拉丁语。 来自《简明英汉词典》
• These compounds are nitrosohydroxylamine derivatives. 这类合成物是亚硝基羟胺衍生物。 来自辞典例句

134 briefly   

adv.简单地，简短地

参考例句：

• I want to touch briefly on another aspect of the problem.我想简单地谈一下这个问题的另一方面。
• He was kidnapped and briefly detained by a terrorist group.他被一个恐怖组织绑架并短暂拘禁。

135 postulate   

n.假定，基本条件；vt.要求，假定

参考例句：

• Let's postulate that she is a cook.我们假定她是一位厨师。
• Freud postulated that we all have a death instinct as well as a life instinct.弗洛伊德曾假定我们所有人都有生存本能和死亡本能。

136 intensity   

n.强烈，剧烈；强度；烈度

参考例句：

• I didn't realize the intensity of people's feelings on this issue.我没有意识到这一问题能引起群情激奋。
• The strike is growing in intensity.罢工日益加剧。

137 functionally   

adv.机能上地，官能地

参考例句：

• Objective To explore occlusion reconstruction by computer aided design (CAD) with functionally-generated pathway (FGP). 目的探索借助功能性？记录(functionally-generated pathway,FGP)技术进行口腔固定修复体计算机辅助设计(Computer aided Design,CAD)生理性建？的方法。 来自互联网
• In this respect, the proceeding was functionally similar to a comparative licensing adjudication. 在这一点上，手续在作用上即类似于比较许可证发放的裁断。 来自英汉非文学 - 行政法

138 musing   

n. 沉思，冥想 adj. 沉思的, 冥想的 动词muse的现在分词形式

参考例句：

• "At Tellson's banking-house at nine," he said, with a musing face. “九点在台尔森银行大厦见面，”他想道。 来自英汉文学 - 双城记
• She put the jacket away, and stood by musing a minute. 她把那件上衣放到一边，站着沉思了一会儿。

139 sprouts   

n.新芽，嫩枝( sprout的名词复数 )v.发芽( sprout的第三人称单数 )；抽芽；出现；（使）涌现出

参考例句：

• The wheat sprouts grew perceptibly after the rain. 下了一场雨，麦苗立刻见长。 来自《现代汉英综合大词典》
• The sprouts have pushed up the earth. 嫩芽把土顶起来了。 来自《现代汉英综合大词典》

140 simultaneously   

adv.同时发生地，同时进行地

参考例句：

• The radar beam can track a number of targets almost simultaneously.雷达波几乎可以同时追着多个目标。
• The Windows allow a computer user to execute multiple programs simultaneously.Windows允许计算机用户同时运行多个程序。

141 previously   

adv.以前，先前（地）

参考例句：

• The bicycle tyre blew out at a previously damaged point.自行车胎在以前损坏过的地方又爆开了。
• Let me digress for a moment and explain what had happened previously.让我岔开一会儿，解释原先发生了什么。

142 unison   

n.步调一致，行动一致

参考例句：

• The governments acted in unison to combat terrorism.这些国家的政府一致行动对付恐怖主义。
• My feelings are in unison with yours.我的感情与你的感情是一致的。

143 abruptly   

adv.突然地，出其不意地

参考例句：

• He gestured abruptly for Virginia to get in the car.他粗鲁地示意弗吉尼亚上车。
• I was abruptly notified that a half-hour speech was expected of me.我突然被通知要讲半个小时的话。

144 lapse   

n.过失，流逝，失效，抛弃信仰，间隔；vi.堕落，停止，失效，流逝；vt.使失效

参考例句：

• The incident was being seen as a serious security lapse.这一事故被看作是一次严重的安全疏忽。
• I had a lapse of memory.我记错了。

145 alphabetical   

adj.字母（表）的，依字母顺序的

参考例句：

• Please arrange these books in alphabetical order.请把这些书按字母顺序整理一下。
• There is no need to maintain a strict alphabetical sequence.不必保持严格的字顺。

146 swerve   

v.突然转向，背离；n．转向，弯曲，背离

参考例句：

• Nothing will swerve him from his aims.什么也不能使他改变目标。
• Her car swerved off the road into a 6ft high brick wall.她的车突然转向冲出了马路，撞向6英尺高的一面砖墙。

147 alteration   

n.变更，改变；蚀变

参考例句：

• The shirt needs alteration.这件衬衣需要改一改。
• He easily perceived there was an alteration in my countenance.他立刻看出我的脸色和往常有些不同。

148 recollecting   

v.记起，想起( recollect的现在分词 )

参考例句：

• Once wound could heal slowly, my Bo Hui was recollecting. 曾经的伤口会慢慢地愈合，我卜会甾回忆。 来自互联网
• I am afraid of recollecting the life of past in the school. 我不敢回忆我在校过去的生活。 来自互联网

149 vertical   

adj.垂直的，顶点的，纵向的；n.垂直物，垂直的位置

参考例句：

• The northern side of the mountain is almost vertical.这座山的北坡几乎是垂直的。
• Vertical air motions are not measured by this system.垂直气流的运动不用这种系统来测量。

150 impartial   

adj.(in,to)公正的，无偏见的

参考例句：

• He gave an impartial view of the state of affairs in Ireland.他对爱尔兰的事态发表了公正的看法。
• Careers officers offer impartial advice to all pupils.就业指导员向所有学生提供公正无私的建议。

151 dint   

n.由于，靠；凹坑

参考例句：

• He succeeded by dint of hard work.他靠苦干获得成功。
• He reached the top by dint of great effort.他费了很大的劲终于爬到了顶。

152 extraneous   

adj.体外的；外来的；外部的

参考例句：

• I can choose to ignore these extraneous thoughts.我可以选择无视这些外来的想法。
• Reductant from an extraneous source is introduced.外来的还原剂被引进来。

153 treadmill   

n.踏车；单调的工作

参考例句：

• The treadmill has a heart rate monitor.跑步机上有个脉搏监视器。
• Drugs remove man from the treadmill of routine.药物可以使人摆脱日常单调的工作带来的疲劳。

154 components   

（机器、设备等的）构成要素，零件，成分； 成分( component的名词复数 )； [物理化学]组分； [数学]分量； （混合物的）组成部分

参考例句：

• the components of a machine 机器部件
• Our chemistry teacher often reduces a compound to its components in lab. 在实验室中化学老师常把化合物分解为各种成分。

155 symbolize   

vt.作为...的象征，用符号代表

参考例句：

• Easter eggs symbolize the renewal of life.复活蛋象征新生。
• Dolphins symbolize the breath of life.海豚象征着生命的气息。

156 emphatic   

adj.强调的，着重的；无可置疑的，明显的

参考例句：

• Their reply was too emphatic for anyone to doubt them.他们的回答很坚决，不容有任何人怀疑。
• He was emphatic about the importance of being punctual.他强调严守时间的重要性。

157 aberrant   

adj.畸变的，异常的，脱离常轨的

参考例句：

• His aberrant behavior at the party shocked everyone.他在晚会上的异常举止令所有人感到震惊！
• I saw that the insects and spiders were displaying the same kind of aberrant behavior.我看到昆虫和蜘蛛正在表现出相同反常的行为。

158 panorama   

n.全景，全景画，全景摄影，全景照片[装置]

参考例句：

• A vast panorama of the valley lay before us.山谷的广阔全景展现在我们面前。
• A flourishing and prosperous panorama spread out before our eyes.一派欣欣向荣的景象展现在我们的眼前。

159 garrulous   

adj.唠叨的，多话的

参考例句：

• He became positively garrulous after a few glasses of wine.他几杯葡萄酒下肚之后便唠唠叨叨说个没完。
• My garrulous neighbour had given away the secret.我那爱唠叨的邻居已把秘密泄露了。

160 narrative   

n.叙述，故事；adj.叙事的，故事体的

参考例句：

• He was a writer of great narrative power.他是一位颇有记述能力的作家。
• Neither author was very strong on narrative.两个作者都不是很善于讲故事。

161 pertinaciously   

adv.坚持地；固执地；坚决地；执拗地

参考例句：

• He struggled pertinaciously for the new resolution. 他为了这项新决议而不懈努力。 来自互联网

162 minor   

adj.较小(少)的，较次要的；n.辅修学科；vi.辅修

参考例句：

• The young actor was given a minor part in the new play.年轻的男演员在这出新戏里被分派担任一个小角色。
• I gave him a minor share of my wealth.我把小部分财产给了他。

163 rendering   

n.表现，描写

参考例句：

• She gave a splendid rendering of Beethoven's piano sonata.她精彩地演奏了贝多芬的钢琴奏鸣曲。
• His narrative is a super rendering of dialect speech and idiom.他的叙述是方言和土语最成功的运用。

164 swelling   

n.肿胀

参考例句：

• Use ice to reduce the swelling. 用冰敷消肿。
• There is a marked swelling of the lymph nodes. 淋巴结处有明显的肿块。

165 potent   

adj.强有力的，有权势的；有效力的

参考例句：

• The medicine had a potent effect on your disease.这药物对你的病疗效很大。
• We must account of his potent influence.我们必须考虑他的强有力的影响。

166 deflect   

v.(使)偏斜，(使)偏离，(使)转向

参考例句：

• Never let a little problem deflect you.决不要因一点小问题就半途而废。
• They decided to deflect from the original plan.他们决定改变原计划。

167 subjective   

a.主观(上)的，个人的

参考例句：

• The way they interpreted their past was highly subjective. 他们解释其过去的方式太主观。
• A literary critic should not be too subjective in his approach. 文学评论家的看法不应太主观。

168 corrosion   

n.腐蚀，侵蚀；渐渐毁坏，渐衰

参考例句：

• Corrosion is not covered by the warranty.腐蚀不在保修范围之内。
• Zinc is used to protect other metals from corrosion.锌被用来保护其他金属不受腐蚀。

169 remains   

n.剩余物，残留物；遗体，遗迹

参考例句：

• He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
• The remains of the meal were fed to the dog.残羹剩饭喂狗了。

170 diffused   

散布的，普及的，扩散的

参考例句：

• A drop of milk diffused in the water. 一滴牛奶在水中扩散开来。
• Gases and liquids diffused. 气体和液体慢慢混合了。

171 erratic   

adj.古怪的，反复无常的，不稳定的

参考例句：

• The old man had always been cranky and erratic.那老头儿性情古怪,反复无常。
• The erratic fluctuation of market prices is in consequence of unstable economy.经济波动致使市场物价忽起忽落。

172 swerving   

v.（使）改变方向，改变目的( swerve的现在分词 )

参考例句：

• It may stand as an example of the fitful swerving of his passion. 这是一个例子，说明他的情绪往往变化不定，忽冷忽热。 来自辞典例句
• Mrs Merkel would be foolish to placate her base by swerving right. 默克尔夫人如果为了安抚她的根基所在而转到右翼就太愚蠢了。 来自互联网

173 evoked   

[医]诱发的

参考例句：

• The music evoked memories of her youth. 这乐曲勾起了她对青年时代的回忆。
• Her face, though sad, still evoked a feeling of serenity. 她的脸色虽然悲伤，但仍使人感觉安详。

174 cogitation   

n.仔细思考，计划，设计

参考例句：

• After much cogitation he rejected the offer. 做了仔细思考之后，他还是拒绝了邀请。 来自《简明英汉词典》
• The existing problems were analyzed from two aspects of cogitation and research. 分析了在含蜡原油低温粘弹性认识上和研究中存在的问题。 来自互联网

175 discordant   

adj.不调和的

参考例句：

• Leonato thought they would make a discordant pair.里奥那托认为他们不适宜作夫妻。
• For when we are deeply mournful discordant above all others is the voice of mirth.因为当我们极度悲伤的时候，欢乐的声音会比其他一切声音都更显得不谐调。

176 tinged   

v.（使）发丁丁声( ting的过去式和过去分词 )

参考例句：

• memories tinged with sadness 略带悲伤的往事
• white petals tinged with blue 略带蓝色的白花瓣

177 discourse   

n.论文，演说；谈话；话语；vi.讲述，著述

参考例句：

• We'll discourse on the subject tonight.我们今晚要谈论这个问题。
• He fell into discourse with the customers who were drinking at the counter.他和站在柜台旁的酒客谈了起来。

178 pertinent   

adj.恰当的；贴切的；中肯的；有关的；相干的

参考例句：

• The expert made some pertinent comments on the scheme.那专家对规划提出了一些中肯的意见。
• These should guide him to pertinent questions for further study.这些将有助于他进一步研究有关问题。

179 coherence   

n.紧凑；连贯；一致性

参考例句：

• There was no coherence between the first and the second half of the film.这部电影的前半部和后半部没有连贯性。
• Environmental education is intended to give these topics more coherence.环境教育的目的是使这些课题更加息息相关。

180 malicious   

adj.有恶意的，心怀恶意的

参考例句：

• You ought to kick back at such malicious slander. 你应当反击这种恶毒的污蔑。
• Their talk was slightly malicious.他们的谈话有点儿心怀不轨。

181 dominant   

adj.支配的，统治的；占优势的；显性的；n.主因，要素，主要的人(或物)；显性基因

参考例句：

• The British were formerly dominant in India.英国人从前统治印度。
• She was a dominant figure in the French film industry.她在法国电影界是个举足轻重的人物。

182 exclusion   

n.拒绝，排除，排斥，远足，远途旅行

参考例句：

• Don't revise a few topics to the exclusion of all others.不要修改少数论题以致排除所有其他的。
• He plays golf to the exclusion of all other sports.他专打高尔夫球，其他运动一概不参加。

183 ornithologist   

n.鸟类学家

参考例句：

• That area is an ornithologist's paradise.那个地区是鸟类学家的天堂。
• Now I know how an ornithologist feels.现在我知道做为一个鸟类学家的感受了。

184 physiologist   

n.生理学家

参考例句：

• Russian physiologist who observed conditioned salivary responses in dogs (1849-1936). （1849-1936）苏联生理学家，在狗身上观察到唾液条件反射，曾获1904年诺贝尔生理学-医学奖。
• The physiologist recently studied indicated that evening exercises beneficially. 生理学家新近研究表明，傍晚锻炼最为有益。

185 invincibly   

adv.难战胜地，无敌地

参考例句：

• Invincibly, the troops moved forward. 这支军队一路前进，所向披靡。 来自互联网

186 naught   

n.无，零 [=nought]

参考例句：

• He sets at naught every convention of society.他轻视所有的社会习俗。
• I hope that all your efforts won't go for naught.我希望你的努力不会毫无结果。

187 propounded   

v.提出（问题、计划等）供考虑[讨论]，提议( propound的过去式和过去分词 )

参考例句：

• the theory of natural selection, first propounded by Charles Darwin 查尔斯∙达尔文首先提出的物竞天择理论
• Indeed it was first propounded by the ubiquitous Thomas Young. 实际上，它是由尽人皆知的杨氏首先提出来的。 来自辞典例句

188 vestiges   

残余部分( vestige的名词复数 )； 遗迹； 痕迹； 毫不

参考例句：

• the last vestiges of the old colonial regime 旧殖民制度最后的残余
• These upright stones are the vestiges of some ancient religion. 这些竖立的石头是某种古代宗教的遗迹。

189 exalted   

adj.(地位等)高的，崇高的；尊贵的，高尚的

参考例句：

• Their loveliness and holiness in accordance with their exalted station.他们的美丽和圣洁也与他们的崇高地位相称。
• He received respect because he was a person of exalted rank.他因为是个地位崇高的人而受到尊敬。

190 repose   

v.(使)休息；n.安息

参考例句：

• Don't disturb her repose.不要打扰她休息。
• Her mouth seemed always to be smiling,even in repose.她的嘴角似乎总是挂着微笑，即使在睡眠时也是这样。

191 illustrate   

v.举例说明，阐明；图解，加插图

参考例句：

• The company's bank statements illustrate its success.这家公司的银行报表说明了它的成功。
• This diagram will illustrate what I mean.这个图表可说明我的意思。

192 memorable   

adj.值得回忆的，难忘的，特别的，显著的

参考例句：

• This was indeed the most memorable day of my life.这的确是我一生中最值得怀念的日子。
• The veteran soldier has fought many memorable battles.这个老兵参加过许多难忘的战斗。

193 masticated   

v.咀嚼( masticate的过去式和过去分词 )；粉碎，磨烂

参考例句：

194 promptly   

adv.及时地，敏捷地

参考例句：

• He paid the money back promptly.他立即还了钱。
• She promptly seized the opportunity his absence gave her.她立即抓住了因他不在场给她创造的机会。

195 congruity   

n.全等，一致

参考例句：

• Congruity is the mother of love.和谐是爱情之母。
• There is a definite congruity in the candidates' approach to the tax problem.候选人在对待税收问题的态度上有着明确的共同之处。

196 melancholy   

n.忧郁，愁思；adj.令人感伤（沮丧）的，忧郁的

参考例句：

• All at once he fell into a state of profound melancholy.他立即陷入无尽的忧思之中。
• He felt melancholy after he failed the exam.这次考试没通过，他感到很郁闷。

197 joyous   

adj.充满快乐的；令人高兴的

参考例句：

• The lively dance heightened the joyous atmosphere of the scene.轻快的舞蹈给这场戏渲染了欢乐气氛。
• They conveyed the joyous news to us soon.他们把这一佳音很快地传递给我们。

198 depressed   

adj.沮丧的，抑郁的，不景气的，萧条的

参考例句：

• When he was depressed,he felt utterly divorced from reality.他心情沮丧时就感到完全脱离了现实。
• His mother was depressed by the sad news.这个坏消息使他的母亲意志消沉。

199 afflict   

vt.使身体或精神受痛苦，折磨

参考例句：

• I wish you wouldn't afflict me with your constant complains.我希望你不要总是抱怨而使我苦恼。
• There are many illnesses,which afflict old people.有许多疾病困扰着老年人。

200 sanguine   

adj.充满希望的，乐观的，血红色的

参考例句：

• He has a sanguine attitude to life.他对于人生有乐观的看法。
• He is not very sanguine about our chances of success.他对我们成功的机会不太乐观。

201 temperament   

n.气质，性格，性情

参考例句：

• The analysis of what kind of temperament you possess is vital.分析一下你有什么样的气质是十分重要的。
• Success often depends on temperament.成功常常取决于一个人的性格。

202 perused   

v.读（某篇文字）( peruse的过去式和过去分词 )；（尤指）细阅；审阅；匆匆读或心不在焉地浏览（某篇文字）

参考例句：

• I remained under the wall and perused Miss Cathy's affectionate composition. 我就留在墙跟底下阅读凯蒂小姐的爱情作品。 来自辞典例句
• Have you perused this article? 你细读了这篇文章了吗？ 来自互联网

203 malignity   

n.极度的恶意，恶毒；（病的）恶性

参考例句：

• The little witch put a mock malignity into her beautiful eyes, and Joseph, trembling with sincere horror, hurried out praying and ejaculating "wicked" as he went. 这个小女巫那双美丽的眼睛里添上一种嘲弄的恶毒神气。约瑟夫真的吓得直抖，赶紧跑出去，一边跑一边祷告，还嚷着“恶毒！” 来自《简明英汉词典》
• Outside, the pitiless rain fell, fell steadily, with a fierce malignity that was all too human. 外面下着无情的雨，不断地下着，简直跟通人性那样凶狠而恶毒。 来自辞典例句

204 redeemed   

adj. 可赎回的，可救赎的 动词redeem的过去式和过去分词形式

参考例句：

• She has redeemed her pawned jewellery. 她赎回了当掉的珠宝。
• He redeemed his watch from the pawnbroker's. 他从当铺赎回手表。

205 sentimental   

adj.多愁善感的，感伤的

参考例句：

• She's a sentimental woman who believes marriage comes by destiny.她是多愁善感的人，她相信姻缘命中注定。
• We were deeply touched by the sentimental movie.我们深深被那感伤的电影所感动。

206 incipient   

adj.起初的，发端的，初期的

参考例句：

• The anxiety has been sharpened by the incipient mining boom.采矿业初期的蓬勃发展加剧了这种担忧。
• What we see then is an incipient global inflation.因此，我们看到的是初期阶段的全球通胀.

207 equilibrium   

n.平衡，均衡，相称，均势，平静

参考例句：

• Change in the world around us disturbs our inner equilibrium.我们周围世界的变化扰乱了我们内心的平静。
• This is best expressed in the form of an equilibrium constant.这最好用平衡常数的形式来表示。

208 unstable   

adj.不稳定的，易变的

参考例句：

• This bookcase is too unstable to hold so many books.这书橱很不结实，装不了这么多书。
• The patient's condition was unstable.那患者的病情不稳定。

209 sufficiently   

adv.足够地，充分地

参考例句：

• It turned out he had not insured the house sufficiently.原来他没有给房屋投足保险。
• The new policy was sufficiently elastic to accommodate both views.新政策充分灵活地适用两种观点。

210 accentuates   

v.重读( accentuate的第三人称单数 )；使突出；使恶化；加重音符号于

参考例句：

• The dark frame accentuates the brightness of the picture. 深色画框更显出画的明亮色彩。 来自《简明英汉词典》
• Her sunburnt skin accentuates the fairness of her hair. 她那晒黑了的皮肤突出了她的一头金发。 来自《简明英汉词典》

211 accentuated   

v.重读( accentuate的过去式和过去分词 )；使突出；使恶化；加重音符号于

参考例句：

• The problem is accentuated by a shortage of water and electricity. 缺乏水电使问题愈加严重。 来自《简明英汉词典》
• Her black hair accentuated the delicateness of her skin. 她那乌黑的头发更衬托出她洁嫩的皮肤。 来自《现代英汉综合大词典》

212 tint   

n.淡色，浅色；染发剂；vt.着以淡淡的颜色

参考例句：

• You can't get up that naturalness and artless rosy tint in after days.你今后不再会有这种自然和朴实无华的红润脸色。
• She gave me instructions on how to apply the tint.她告诉我如何使用染发剂。

213 blues   

n.抑郁，沮丧；布鲁斯音乐

参考例句：

• She was in the back of a smoky bar singing the blues.她在烟雾弥漫的酒吧深处唱着布鲁斯歌曲。
• He was in the blues on account of his failure in business.他因事业失败而意志消沉。

214 tints   

色彩( tint的名词复数 )； 带白的颜色； （淡色）染发剂； 痕迹

参考例句：

• leaves with red and gold autumn tints 金秋时节略呈红黄色的树叶
• The whole countryside glowed with autumn tints. 乡间处处呈现出灿烂的秋色。

215 entity   

n.实体，独立存在体，实际存在物

参考例句：

• The country is no longer one political entity.这个国家不再是一个统一的政治实体了。
• As a separate legal entity,the corporation must pay taxes.作为一个独立的法律实体，公司必须纳税。

216 elasticity   

n.弹性，伸缩力

参考例句：

• The skin eventually loses its elasticity.皮肤最终会失去弹性。
• Every sort of spring has a definite elasticity.每一种弹簧都有一定的弹性。

217 integument   

n.皮肤

参考例句：

• The first protector against the entry of microorganisms is the integument.抗御微生物进入体内的第一道防线是皮肤。
• The cells of the integument and nucellus of some plants form perfectly normal embryos.某些植物的珠被和珠心细胞形成完全正常的胚。

218 mobility   

n.可动性，变动性，情感不定

参考例句：

• The difference in regional house prices acts as an obstacle to mobility of labour.不同地区房价的差异阻碍了劳动力的流动。
• Mobility is very important in guerrilla warfare.机动性在游击战中至关重要。

219 obedience   

n.服从，顺从

参考例句：

• Society has a right to expect obedience of the law.社会有权要求人人遵守法律。
• Soldiers act in obedience to the orders of their superior officers.士兵们遵照上级军官的命令行动。

220 symbolized   

v.象征，作为…的象征( symbolize的过去式和过去分词 )

参考例句：

• For Tigress, Joy symbolized the best a woman could expect from life. 在她看，小福子就足代表女人所应有的享受。 来自汉英文学 - 骆驼祥子
• A car symbolized distinction and achievement, and he was proud. 汽车象征着荣誉和成功，所以他很自豪。 来自辞典例句

221 inert   

adj.无活动能力的，惰性的；迟钝的

参考例句：

• Inert gas studies are providing valuable information about other planets,too.对惰性气体的研究，也提供了有关其它行星的有价值的资料。
• Elemental nitrogen is a very unreactive and inert material.元素氮是一个十分不活跃的惰性物质。

222 persistently   

ad.坚持地；固执地

参考例句：

• He persistently asserted his right to a share in the heritage. 他始终声称他有分享那笔遗产的权利。
• She persistently asserted her opinions. 她果断地说出了自己的意见。

223 persistent   

adj.坚持不懈的，执意的；持续的

参考例句：

• Albert had a persistent headache that lasted for three days.艾伯特连续头痛了三天。
• She felt embarrassed by his persistent attentions.他不时地向她大献殷勤，使她很难为情。

224 glided   

v.滑动( glide的过去式和过去分词 )；掠过；（鸟或飞机 ） 滑翔

参考例句：

• The President's motorcade glided by. 总统的车队一溜烟开了过去。
• They glided along the wall until they were out of sight. 他们沿着墙壁溜得无影无踪。 来自《简明英汉词典》

225 besieged   

包围，围困，围攻( besiege的过去式和过去分词 )

参考例句：

• Paris was besieged for four months and forced to surrender. 巴黎被围困了四个月后被迫投降。
• The community besieged the newspaper with letters about its recent editorial. 公众纷纷来信对报社新近发表的社论提出诘问，弄得报社应接不暇。

226 pivot   

v.在枢轴上转动；装枢轴，枢轴；adj.枢轴的

参考例句：

• She is the central pivot of creation and represents the feminine aspect in all things.她是创造的中心枢轴，表现出万物的女性面貌。
• If a spring is present,the hand wheel will pivot on the spring.如果有弹簧，手轮的枢轴会装在弹簧上。

227 elude   

v.躲避，困惑

参考例句：

• If you chase it,it will elude you.如果你追逐着它， 它会躲避你。
• I had dared and baffled his fury.I must elude his sorrow.我曾经面对过他的愤怒，并且把它挫败了；现在我必须躲避他的悲哀。

228 savage   

adj.野蛮的；凶恶的，残暴的；n.未开化的人

参考例句：

• The poor man received a savage beating from the thugs.那可怜的人遭到暴徒的痛打。
• He has a savage temper.他脾气粗暴。

229 tattooed   

v.刺青，文身( tattoo的过去式和过去分词 )；连续有节奏地敲击；作连续有节奏的敲击

参考例句：

• He had tattooed his wife's name on his upper arm. 他把妻子的名字刺在上臂上。 来自《简明英汉词典》
• The sailor had a heart tattooed on his arm. 那水兵在手臂上刺上一颗心。 来自《现代英汉综合大词典》

230 monstrous   

adj.巨大的；恐怖的；可耻的，丢脸的

参考例句：

• The smoke began to whirl and grew into a monstrous column.浓烟开始盘旋上升，形成了一个巨大的烟柱。
• Your behaviour in class is monstrous!你在课堂上的行为真是丢人！

231 superstitions   

迷信，迷信行为( superstition的名词复数 )

参考例句：

• Old superstitions seem incredible to educated people. 旧的迷信对于受过教育的人来说是不可思议的。
• Do away with all fetishes and superstitions. 破除一切盲目崇拜和迷信。

232 steering   

n.操舵装置

参考例句：

• He beat his hands on the steering wheel in frustration. 他沮丧地用手打了几下方向盘。
• Steering according to the wind, he also framed his words more amicably. 他真会看风使舵，口吻也马上变得温和了。

233 dissect   

v.分割；解剖

参考例句：

• In biology class we had to dissect a frog.上生物课时我们得解剖青蛙。
• Not everyone can dissect and digest the public information they receive.不是每个人都可以解析和消化他们得到的公共信息的。

234 affinities   

n.密切关系( affinity的名词复数 )；亲近；（生性）喜爱；类同

参考例句：

• Cubism had affinities with the new European interest in Jazz. 主体派和欧洲新近的爵士音乐热有密切关系。 来自辞典例句
• The different isozymes bind calcium ions with different affinities. 不同的同功酶以不同的亲和力与钙离子相结合。 来自辞典例句

235 epithets   

n.（表示性质、特征等的）词语( epithet的名词复数 )

参考例句：

• He insulted me, using rude epithets. 他用粗话诅咒我。 来自《简明英汉词典》
• He cursed me, using a lot of rude epithets. 他用上许多粗鲁的修饰词来诅咒我。 来自辞典例句

236 torment   

n.折磨；令人痛苦的东西(人)；vt.折磨；纠缠

参考例句：

• He has never suffered the torment of rejection.他从未经受过遭人拒绝的痛苦。
• Now nothing aggravates me more than when people torment each other.没有什么东西比人们的互相折磨更使我愤怒。

237 inaccessible   

adj.达不到的，难接近的

参考例句：

• This novel seems to me among the most inaccessible.这本书对我来说是最难懂的小说之一。
• The top of Mount Everest is the most inaccessible place in the world.珠穆朗玛峰是世界上最难到达的地方。

238 isolable   

adj.可孤立的，可隔离的

参考例句：

• Isolable carbocyclic compounds contain seven or fewer carbons in the cycle. 可分离的碳环化合物环内含七个或七个以下的碳。 来自辞典例句

239 discriminated   

分别，辨别，区分( discriminate的过去式和过去分词 )； 歧视，有差别地对待

参考例句：

• His great size discriminated him from his followers. 他的宽广身材使他不同于他的部下。
• Should be a person that has second liver virus discriminated against? 一个患有乙肝病毒的人是不是就应该被人歧视？

240 prosaic   

adj.单调的，无趣的

参考例句：

• The truth is more prosaic.真相更加乏味。
• It was a prosaic description of the scene.这是对场景没有想象力的一个描述。

241 trudging   

vt.& vi.跋涉，吃力地走（trudge的现在分词形式）

参考例句：

• There was a stream of refugees trudging up the valley towards the border. 一队难民步履艰难地爬上山谷向着边境走去。 来自《简明英汉词典》
• Two mules well laden with packs were trudging along. 两头骡子驮着沉重的背包，吃力地往前走。 来自辞典例句

242 grooves   

n.沟( groove的名词复数 )；槽；老一套；（某种）音乐节奏v.沟( groove的第三人称单数 )；槽；老一套；（某种）音乐节奏

参考例句：

• Wheels leave grooves in a dirt road. 车轮在泥路上留下了凹痕。 来自《简明英汉词典》
• Sliding doors move in grooves. 滑动门在槽沟中移动。 来自《现代汉英综合大词典》

243 darting   

v.投掷，投射( dart的现在分词 )；向前冲，飞奔

参考例句：

• Swallows were darting through the clouds. 燕子穿云急飞。 来自《现代英汉综合大词典》
• Swallows were darting through the air. 燕子在空中掠过。 来自辞典例句

244 flux   

n.流动；不断的改变

参考例句：

• The market is in a constant state of flux.市场行情在不断变化。
• In most reactors,there is a significant flux of fast neutrons.在大部分反应堆中都有一定强度的快中子流。

245 modification   

n.修改，改进，缓和，减轻

参考例句：

• The law,in its present form,is unjust;it needs modification.现行的法律是不公正的，它需要修改。
• The design requires considerable modification.这个设计需要作大的修改。

246 physiologically   

ad.生理上，在生理学上

参考例句：

• Therefore, the liver and gallbladder cannot be completely separated physiologically and pathologically. 因此，肝胆在生理和病理上不能完全分离。
• Therefore, the liver and gallbladder are closely related physiologically and pathologically. 因此，肝胆在生理和病理上紧密联系。

247 revolve   

vi.(使)旋转；循环出现

参考例句：

• The planets revolve around the sun.行星绕着太阳运转。
• The wheels began to revolve slowly.车轮开始慢慢转动。

248 pivots   

n.枢( pivot的名词复数 )；最重要的人（或事物）；中心；核心v.（似）在枢轴上转动( pivot的第三人称单数 )；把…放在枢轴上；以…为核心，围绕（主旨）展开

参考例句：

• The success of the project pivots on investment from abroad. 这个工程的成功主要依靠外来投资。 来自《简明英汉词典》
• The novel pivots around a long conversation between two characters. 这部小说是以两个人物的对话为中心展开的。 来自《简明英汉词典》

249 Augmented   

adj.增音的 动词augment的过去式和过去分词形式

参考例句：

• 'scientists won't be replaced," he claims, "but they will be augmented." 他宣称：“科学家不会被取代；相反，他们会被拓展。” 来自英汉非文学 - 科学史
• The impact of the report was augmented by its timing. 由于发表的时间选得好，这篇报导的影响更大了。

250 attained   

（通常经过努力）实现( attain的过去式和过去分词 )； 达到； 获得； 达到（某年龄、水平、状况）

参考例句：

• She has attained the degree of Master of Arts. 她已获得文学硕士学位。
• Lu Hsun attained a high position in the republic of letters. 鲁迅在文坛上获得崇高的地位。

251 attain   

vt.达到，获得，完成

参考例句：

• I used the scientific method to attain this end. 我用科学的方法来达到这一目的。
• His painstaking to attain his goal in life is praiseworthy. 他为实现人生目标所下的苦功是值得称赞的。

252 craving   

n.渴望,热望

参考例句：

• a craving for chocolate 非常想吃巧克力
• She skipped normal meals to satisfy her craving for chocolate and crisps. 她不吃正餐，以便满足自己吃巧克力和炸薯片的渴望。

253 judgment   

n.审判；判断力，识别力，看法，意见

参考例句：

• The chairman flatters himself on his judgment of people.主席自认为他审视人比别人高明。
• He's a man of excellent judgment.他眼力过人。

254 minimal   

adj.尽可能少的，最小的

参考例句：

• They referred to this kind of art as minimal art.他们把这种艺术叫微型艺术。
• I stayed with friends, so my expenses were minimal.我住在朋友家，所以我的花费很小。

255 imminent   

adj.即将发生的，临近的，逼近的

参考例句：

• The black clounds show that a storm is imminent.乌云预示暴风雨即将来临。
• The country is in imminent danger.国难当头。

256 nascent   

adj.初生的，发生中的

参考例句：

• That slim book showed the Chinese intelligentsia and the nascent working class.那本小册子讲述了中国的知识界和新兴的工人阶级。
• Despite a nascent democracy movement,there's little traction for direct suffrage.尽管有过一次新生的民主运动，但几乎不会带来直接选举。

257 crescendo   

n.(音乐)渐强，高潮

参考例句：

• The gale reached its crescendo in the evening.狂风在晚上达到高潮。
• There was a crescendo of parliamentary and press criticism.来自议会和新闻界的批评越来越多。

258 inhibited   

a.拘谨的，拘束的

参考例句：

• Boys are often more inhibited than girls about discussing their problems. 男孩子往往不如女孩子敢于谈论自己的问题。
• Having been laughed at for his lameness,the boy became shy and inhibited. 那男孩因跛脚被人讥笑，变得羞怯而压抑。

259 anecdote   

n.轶事，趣闻，短故事

参考例句：

• He departed from the text to tell an anecdote.他偏离课文讲起了一则轶事。
• It had never been more than a family anecdote.那不过是个家庭趣谈罢了。

260 quotation   

n.引文，引语，语录；报价，牌价，行情

参考例句：

• He finished his speech with a quotation from Shakespeare.他讲话结束时引用了莎士比亚的语录。
• The quotation is omitted here.此处引文从略。

261 hovering   

鸟( hover的现在分词 )； 靠近（某事物）； （人）徘徊； 犹豫

参考例句：

• The helicopter was hovering about 100 metres above the pad. 直升机在离发射台一百米的上空盘旋。
• I'm hovering between the concert and the play tonight. 我犹豫不决今晚是听音乐会还是看戏。

262 advent   

n.(重要事件等的)到来，来临

参考例句：

• Swallows come by groups at the advent of spring. 春天来临时燕子成群飞来。
• The advent of the Euro will redefine Europe.欧元的出现将重新定义欧洲。

263 itching   

adj.贪得的，痒的，渴望的v.发痒( itch的现在分词 )

参考例句：

• The itching was almost more than he could stand. 他痒得几乎忍不住了。 来自《现代汉英综合大词典》
• My nose is itching. 我的鼻子发痒。 来自《简明英汉词典》

264 underlying   

adj.在下面的，含蓄的，潜在的

参考例句：

• The underlying theme of the novel is very serious.小说隐含的主题是十分严肃的。
• This word has its underlying meaning.这个单词有它潜在的含义。

265 centripetal   

adj.向心的

参考例句：

• After some treatment of centripetal force,he deduces Kepler's third law.在向心力的一些论述之后，他推出了开普勒的第三定律。
• It is called the centripetal acceleration.这叫做向心加速度。

266 helping   

n.食物的一份&adj.帮助人的，辅助的

参考例句：

• The poor children regularly pony up for a second helping of my hamburger. 那些可怜的孩子们总是要求我把我的汉堡包再给他们一份。
• By doing this, they may at times be helping to restore competition. 这样一来, 他在某些时候,有助于竞争的加强。

267 socket   

n.窝，穴，孔，插座，插口

参考例句：

• He put the electric plug into the socket.他把电插头插入插座。
• The battery charger plugs into any mains socket.这个电池充电器可以插入任何类型的电源插座。

268 gaping   

adj.口的；张口的；敞口的；多洞穴的v.目瞪口呆地凝视( gape的现在分词 )；张开，张大

参考例句：

• Ahead of them was a gaping abyss. 他们前面是一个巨大的深渊。
• The antelope could not escape the crocodile's gaping jaws. 那只羚羊无法从鱷鱼张开的大口中逃脱。 来自《简明英汉词典》

269 enigmas   

n.难于理解的问题、人、物、情况等，奥秘( enigma的名词复数 )

参考例句：

• The last words of Night Haunter stand as one of the great enigmas of Imperial history. 暗夜幽魂最后的临死前的话成为了帝国历史上的最大谜团之一。 来自互联网
• Heraclitus saith well in one of his enigmas, Dry light is ever the best. 赫拉克里塔斯在他的隐语之一中说得很好，“干光永远最佳”。 来自互联网

270 volition   

n.意志；决意

参考例句：

• We like to think that everything we do and everything we think is a product of our volition.我们常常认为我们所做和所想的一切都出自自己的意愿。
• Makin said Mr Coombes had gone to the police of his own volition.梅金说库姆斯先生是主动去投案的。

271 evoking   

产生，引起，唤起( evoke的现在分词 )

参考例句：

• Some occur in organisms without evoking symptoms. 一些存在于生物体中，但不发生症状。
• Nowadays, the protection of traditional knowledge is evoking heat discussion worldwide. 目前，全球都掀起了保护传统知识的热潮。

272 detailed   

adj.详细的，详尽的，极注意细节的，完全的

参考例句：

• He had made a detailed study of the terrain.他对地形作了缜密的研究。
• A detailed list of our publications is available on request.我们的出版物有一份详细的目录备索。

273 investigator   

n.研究者，调查者，审查者

参考例句：

• He was a special investigator for the FBI.他是联邦调查局的特别调查员。
• The investigator was able to deduce the crime and find the criminal.调查者能够推出犯罪过程并锁定罪犯。

274 conversed   

v.交谈，谈话( converse的过去式 )

参考例句：

• I conversed with her on a certain problem. 我与她讨论某一问题。 来自《现代英汉综合大词典》
• She was cheerful and polite, and conversed with me pleasantly. 她十分高兴，也很客气，而且愉快地同我交谈。 来自辞典例句

275 systematic   

adj.有系统的，有计划的，有方法的

参考例句：

• The way he works isn't very systematic.他的工作不是很有条理。
• The teacher made a systematic work of teaching.这个教师进行系统的教学工作。

276 inquiry   

n.打听，询问，调查，查问

参考例句：

• Many parents have been pressing for an inquiry into the problem.许多家长迫切要求调查这个问题。
• The field of inquiry has narrowed down to five persons.调查的范围已经缩小到只剩5个人了。

277 residues   

n.剩余，余渣( residue的名词复数 )；剩余财产；剩数

参考例句：

• pesticide residues in fruit and vegetables 残留在水果和蔬菜中的杀虫剂
• All organic and metallic residues on the wafers must be removed. 片子上所有的有机和金属残留物均必须清除。 来自辞典例句

278 ruminating   

v.沉思( ruminate的现在分词 )；反复考虑；反刍；倒嚼

参考例句：

• He sat there ruminating and picking at the tablecloth. 他坐在那儿沉思，轻轻地抚弄着桌布。 来自《简明英汉词典》
• He is ruminating on what had happened the day before. 他在沉思前一天发生的事情。 来自《简明英汉词典》

279 machinery   

n.(总称)机械，机器；机构

参考例句：

• Has the machinery been put up ready for the broadcast?广播器材安装完毕了吗？
• Machinery ought to be well maintained all the time.机器应该随时注意维护。

280 unintelligible   

adj.无法了解的，难解的，莫明其妙的

参考例句：

• If a computer is given unintelligible data, it returns unintelligible results.如果计算机得到的是难以理解的数据，它给出的也将是难以理解的结果。
• The terms were unintelligible to ordinary folk.这些术语一般人是不懂的。

281 intelligible   

adj.可理解的，明白易懂的，清楚的

参考例句：

• This report would be intelligible only to an expert in computing.只有计算机运算专家才能看懂这份报告。
• His argument was barely intelligible.他的论点不易理解。

282 psychical   

adj.有关特异功能现象的；有关特异功能官能的；灵魂的；心灵的

参考例句：

• Conclusion: The Liuhe-lottery does harm to people, s psychical health and should be for bidden. 结论：“六合彩”赌博有害人们心理卫生，应予以严禁。 来自互联网

283 derive   

v.取得；导出；引申；来自；源自；出自

参考例句：

• We derive our sustenance from the land.我们从土地获取食物。
• We shall derive much benefit from reading good novels.我们将从优秀小说中获得很大好处。

284 aphasia   

n.失语症

参考例句：

• Unfortunately,he suffered from sudden onset of aphasia one week later.不幸的是，他术后一星期突然出现失语症。
• My wife is in B-four,stroke and aphasia.我的妻子住在B-4房间，患的是中风和失语症。

285 sensational   

adj.使人感动的，非常好的，轰动的，耸人听闻的

参考例句：

• Papers of this kind are full of sensational news reports.这类报纸满是耸人听闻的新闻报道。
• Their performance was sensational.他们的演出妙极了。

286 essentially   

adv.本质上，实质上，基本上

参考例句：

• Really great men are essentially modest.真正的伟人大都很谦虚。
• She is an essentially selfish person.她本质上是个自私自利的人。

287 stimulus   

n.刺激，刺激物，促进因素，引起兴奋的事物

参考例句：

• Regard each failure as a stimulus to further efforts.把每次失利看成对进一步努力的激励。
• Light is a stimulus to growth in plants.光是促进植物生长的一个因素。

288 plausible   

adj.似真实的，似乎有理的，似乎可信的

参考例句：

• His story sounded plausible.他说的那番话似乎是真实的。
• Her story sounded perfectly plausible.她的说辞听起来言之有理。

289 conclusive   

adj.最后的，结论的；确凿的，消除怀疑的

参考例句：

• They produced some fairly conclusive evidence.他们提供了一些相当确凿的证据。
• Franklin did not believe that the French tests were conclusive.富兰克林不相信这个法国人的实验是结论性的。

290 generic   

adj.一般的，普通的，共有的

参考例句：

• I usually buy generic clothes instead of name brands.我通常买普通的衣服，不买名牌。
• The generic woman appears to have an extraordinary faculty for swallowing the individual.一般妇女在婚后似乎有特别突出的抑制个性的能力。

291 physiologists   

n.生理学者( physiologist的名词复数 )；生理学( physiology的名词复数 )；生理机能

参考例句：

• Quite unexpectedly, vertebrate physiologists and microbial biochemists had found a common ground. 出乎意外，脊椎动物生理学家和微生物生化学家找到了共同阵地。 来自辞典例句
• Physiologists are interested in the workings of the human body. 生理学家对人体的功能感兴趣。 来自辞典例句

292 invoked   

v.援引( invoke的过去式和过去分词 )；行使（权利等）；祈求救助；恳求

参考例句：

• It is unlikely that libel laws will be invoked. 不大可能诉诸诽谤法。
• She had invoked the law in her own defence. 她援引法律为自己辩护。 来自《简明英汉词典》

293 dormant   

adj.暂停活动的；休眠的；潜伏的

参考例句：

• Many animals are in a dormant state during winter.在冬天许多动物都处于睡眠状态。
• This dormant volcano suddenly fired up.这座休眠火山突然爆发了。

294 dwelling   

n.住宅，住所，寓所

参考例句：

• Those two men are dwelling with us.那两个人跟我们住在一起。
• He occupies a three-story dwelling place on the Park Street.他在派克街上有一幢3层楼的寓所。

295 psychology   

n.心理，心理学，心理状态

参考例句：

• She has a background in child psychology.她受过儿童心理学的教育。
• He studied philosophy and psychology at Cambridge.他在剑桥大学学习哲学和心理学。

296 dealing   

n.经商方法，待人态度

参考例句：

• This store has an excellent reputation for fair dealing.该商店因买卖公道而享有极高的声誉。
• His fair dealing earned our confidence.他的诚实的行为获得我们的信任。

297 whatsoever   

adv.（用于否定句中以加强语气）任何；pron.无论什么

参考例句：

• There's no reason whatsoever to turn down this suggestion.没有任何理由拒绝这个建议。
• All things whatsoever ye would that men should do to you,do ye even so to them.你想别人对你怎样，你就怎样对人。

298 relics   

[pl.］n.遗物，遗迹，遗产；遗体，尸骸

参考例句：

• The area is a treasure house of archaeological relics. 这个地区是古文物遗迹的宝库。
• Xi'an is an ancient city full of treasures and saintly relics. 西安是一个有很多宝藏和神圣的遗物的古老城市。

299 drawn   

v.拖，拉，拔出；adj.憔悴的，紧张的

参考例句：

• All the characters in the story are drawn from life.故事中的所有人物都取材于生活。
• Her gaze was drawn irresistibly to the scene outside.她的目光禁不住被外面的风景所吸引。

300 passionate   

adj.热情的，热烈的，激昂的，易动情的，易怒的，性情暴躁的

参考例句：

• He is said to be the most passionate man.据说他是最有激情的人。
• He is very passionate about the project.他对那个项目非常热心。

301 precept   

n.戒律；格言

参考例句：

• It occurs to me that example is always more efficacious than precept.我想到身教重于言教。
• The son had well profited by the precept and example of the father.老太爷的言传身教早已使他儿子获益无穷。

302 faculty   

n.才能；学院，系；(学院或系的)全体教学人员

参考例句：

• He has a great faculty for learning foreign languages.他有学习外语的天赋。
• He has the faculty of saying the right thing at the right time.他有在恰当的时候说恰当的话的才智。

303 necessitated   

使…成为必要，需要( necessitate的过去式和过去分词 )

参考例句：

• Recent financial scandals have necessitated changes in parliamentary procedures. 最近的金融丑闻使得议会程序必须改革。
• No man is necessitated to do wrong. 没有人是被迫去作错事的。

304 conspicuous   

adj.明眼的，惹人注目的；炫耀的，摆阔气的

参考例句：

• It is conspicuous that smoking is harmful to health.很明显，抽烟对健康有害。
• Its colouring makes it highly conspicuous.它的色彩使它非常惹人注目。

305 cardinal   

n.(天主教的)红衣主教；adj.首要的，基本的

参考例句：

• This is a matter of cardinal significance.这是非常重要的事。
• The Cardinal coloured with vexation. 红衣主教感到恼火，脸涨得通红。

306 faculties   

n.能力( faculty的名词复数 )；全体教职员；技巧；院

参考例句：

• Although he's ninety, his mental faculties remain unimpaired. 他虽年届九旬，但头脑仍然清晰。
• All your faculties have come into play in your work. 在你的工作中，你的全部才能已起到了作用。 来自《简明英汉词典》

307 possessed   

adj.疯狂的；拥有的，占有的

参考例句：

• He flew out of the room like a man possessed.他像着了魔似地猛然冲出房门。
• He behaved like someone possessed.他行为举止像是魔怔了。

308 requisite   

adj.需要的，必不可少的；n.必需品

参考例句：

• He hasn't got the requisite qualifications for the job.他不具备这工作所需的资格。
• Food and air are requisite for life.食物和空气是生命的必需品。

309 sentient   

adj.有知觉的，知悉的；adv.有感觉能力地

参考例句：

• The living knew themselves just sentient puppets on God's stage.生还者认识到，他们不过是上帝的舞台上有知觉的木偶而已。
• It teaches us to love all sentient beings equally.它教导我们应该平等爱护一切众生。

310 eminent   

adj.显赫的，杰出的，有名的，优良的

参考例句：

• We are expecting the arrival of an eminent scientist.我们正期待一位著名科学家的来访。
• He is an eminent citizen of China.他是一个杰出的中国公民。

311 remarkable   

adj.显著的，异常的，非凡的，值得注意的

参考例句：

• She has made remarkable headway in her writing skills.她在写作技巧方面有了长足进步。
• These cars are remarkable for the quietness of their engines.这些汽车因发动机没有噪音而不同凡响。

312 apparently   

adv.显然地；表面上，似乎

参考例句：

• An apparently blind alley leads suddenly into an open space.山穷水尽，豁然开朗。
• He was apparently much surprised at the news.他对那个消息显然感到十分惊异。

313 ecstasy   

n.狂喜，心醉神怡，入迷

参考例句：

• He listened to the music with ecstasy.他听音乐听得入了神。
• Speechless with ecstasy,the little boys gazed at the toys.小孩注视着那些玩具，高兴得说不出话来。

314 scattered   

adj.分散的，稀疏的；散步的；疏疏落落的

参考例句：

• Gathering up his scattered papers,he pushed them into his case.他把散乱的文件收拾起来，塞进文件夹里。

315 stoics   

禁欲主义者，恬淡寡欲的人，不以苦乐为意的人( stoic的名词复数 )

参考例句：

• Stoics I can handle this shit. 斯多葛：我能掌握这大便。
• The most famous exercise of meditation is the premeditatio mallorum as practiced by the Stoics. 冥思最著名的练习是禁欲学派所实行的[消灾冥思]。

316 superfluous   

adj.过多的，过剩的，多余的

参考例句：

• She fined away superfluous matter in the design. 她删去了这图案中多余的东西。
• That request seemed superfluous when I wrote it.我这样写的时候觉得这个请求似乎是多此一举。

317 precisely   

adv.恰好，正好，精确地，细致地

参考例句：

• It's precisely that sort of slick sales-talk that I mistrust.我不相信的正是那种油腔滑调的推销宣传。
• The man adjusted very precisely.那个人调得很准。

318 entities   

实体对像； 实体，独立存在体，实际存在物( entity的名词复数 )

参考例句：

• Our newspaper and our printing business form separate corporate entities. 我们的报纸和印刷业形成相对独立的企业实体。
• The North American continent is made up of three great structural entities. 北美大陆是由三个构造单元组成的。

319 reprehensible   

adj.该受责备的

参考例句：

• Lying is not seen as being morally reprehensible in any strong way.人们并不把撒谎当作一件应该大加谴责的事儿。
• It was reprehensible of him to be so disloyal.他如此不忠，应受谴责。

320 deduction   

n.减除，扣除，减除额；推论，推理，演绎

参考例句：

• No deduction in pay is made for absence due to illness.因病请假不扣工资。
• His deduction led him to the correct conclusion.他的推断使他得出正确的结论。

321 induction   

n.感应，感应现象

参考例句：

• His induction as a teacher was a turning point in his life.他就任教师工作是他一生的转折点。
• The magnetic signals are sensed by induction coils.磁信号由感应线圈所检测。

322 steadfast   

adj.固定的，不变的，不动摇的；忠实的；坚贞不移的

参考例句：

• Her steadfast belief never left her for one moment.她坚定的信仰从未动摇过。
• He succeeded in his studies by dint of steadfast application.由于坚持不懈的努力他获得了学业上的成功。

323 benevolence   

n.慈悲，捐助

参考例句：

• We definitely do not apply a policy of benevolence to the reactionaries.我们对反动派决不施仁政。
• He did it out of pure benevolence. 他做那件事完全出于善意。

324 conscientiousness   

责任心

参考例句：

• Conscientiousness is expected of a student. 学生要诚实。 来自《简明英汉词典》
• Only has the conscientiousness, diligently works, can make a more splendid result! 只有脚踏实地，努力工作，才能做出更出色的成绩！ 来自互联网

325 avarice   

n.贪婪；贪心

参考例句：

• Avarice is the bane to happiness.贪婪是损毁幸福的祸根。
• Their avarice knows no bounds and you can never satisfy them.他们贪得无厌，你永远无法满足他们。

326 miser   

n.守财奴，吝啬鬼 (adj.miserly)

参考例句：

• The miser doesn't like to part with his money.守财奴舍不得花他的钱。
• The demon of greed ruined the miser's happiness.贪得无厌的恶习毁掉了那个守财奴的幸福。

327 manifestation   

n.表现形式；表明；现象

参考例句：

• Her smile is a manifestation of joy.她的微笑是她快乐的表现。
• What we call mass is only another manifestation of energy.我们称之为质量的东西只是能量的另一种表现形态。

328 irresistibly   

adv.无法抵抗地，不能自持地；极为诱惑人地

参考例句：

• Her gaze was drawn irresistibly to the scene outside. 她的目光禁不住被外面的风景所吸引。 来自《简明英汉词典》
• He was irresistibly attracted by her charm. 他不能自已地被她的魅力所吸引。 来自《简明英汉词典》

329 susceptible   

adj.过敏的，敏感的；易动感情的，易受感动的

参考例句：

• Children are more susceptible than adults.孩子比成人易受感动。
• We are all susceptible to advertising.我们都易受广告的影响。

330 repudiates   

v.（正式地）否认( repudiate的第三人称单数 )；拒绝接受；拒绝与…往来；拒不履行（法律义务）

参考例句：

• It is in this sense that Comte repudiates empiricism. 正是从这个意义上说，孔德抛弃了经验主义。 来自辞典例句

331 retentiveness   

n.有记性；记性强；保持力；好记性

参考例句：

332 painstaking   

adj.苦干的；艰苦的，费力的，刻苦的

参考例句：

• She is not very clever but she is painstaking.她并不很聪明，但肯下苦功夫。
• Through years of our painstaking efforts,we have at last achieved what we have today.大家经过多少年的努力，才取得今天的成绩。

333 peculiarities   

n. 特质, 特性, 怪癖, 古怪

参考例句：

• the cultural peculiarities of the English 英国人的文化特点
• He used to mimic speech peculiarities of another. 他过去总是模仿别人讲话的特点。

334 oblivious   

adj.易忘的，遗忘的，忘却的，健忘的

参考例句：

• Mother has become quite oblivious after the illness.这次病后，妈妈变得特别健忘。
• He was quite oblivious of the danger.他完全没有察觉到危险。

335 engrossed   

adj.全神贯注的

参考例句：

• The student is engrossed in his book.这名学生正在专心致志地看书。
• No one had ever been quite so engrossed in an evening paper.没人会对一份晚报如此全神贯注。

336 obtuse   

adj.钝的；愚钝的

参考例句：

• You were too obtuse to take the hint.你太迟钝了，没有理解这种暗示。
• "Sometimes it looks more like an obtuse triangle,"Winter said.“有时候它看起来更像一个钝角三角形。”温特说。

337 peculiarity   

n.独特性，特色；特殊的东西；怪癖

参考例句：

• Each country has its own peculiarity.每个国家都有自己的独特之处。
• The peculiarity of this shop is its day and nigth service.这家商店的特点是昼夜服务。

338 indifference   

n.不感兴趣，不关心，冷淡，不在乎

参考例句：

• I was disappointed by his indifference more than somewhat.他的漠不关心使我很失望。
• He feigned indifference to criticism of his work.他假装毫不在意别人批评他的作品。

339 conspire   

v.密谋，（事件等）巧合，共同导致

参考例句：

• They'd conspired to overthrow the government.他们曾经密谋推翻政府。
• History and geography have conspired to bring Greece to a moment of decision.历史和地理因素共同将希腊推至作出抉择的紧要关头。

340 resuscitation   

n.复活

参考例句：

• Despite attempts at resuscitation,Mr Lynch died a week later in hospital.虽经全力抢救，但林奇先生一周以后还是在医院去世了。
• We gave him mouth-to-mouth resuscitation and heart massage.我们对他进行了口对口复苏救治和心脏按摩。

341 brute   

n.野兽，兽性

参考例句：

• The aggressor troops are not many degrees removed from the brute.侵略军简直象一群野兽。
• That dog is a dangerous brute.It bites people.那条狗是危险的畜牲，它咬人。

342 inertia   

adj.惰性，惯性，懒惰，迟钝

参考例句：

• We had a feeling of inertia in the afternoon.下午我们感觉很懒。
• Inertia carried the plane onto the ground.飞机靠惯性着陆。

343 likeness   

n.相像，相似（之处）

参考例句：

• I think the painter has produced a very true likeness.我认为这位画家画得非常逼真。
• She treasured the painted likeness of her son.她珍藏她儿子的画像。

344 affected   

adj.不自然的，假装的

参考例句：

• She showed an affected interest in our subject.她假装对我们的课题感到兴趣。
• His manners are affected.他的态度不自然。

345 devastation   

n.毁坏；荒废；极度震惊或悲伤

参考例句：

• The bomb caused widespread devastation. 炸弹造成大面积破坏。
• There was devastation on every side. 到处都是破坏的创伤。 来自《简明英汉词典》

346 vapor   

n.蒸汽，雾气

参考例句：

• The cold wind condenses vapor into rain.冷风使水蒸气凝结成雨。
• This new machine sometimes transpires a lot of hot vapor.这部机器有时排出大量的热气。

347 hissing   

n. 发嘶嘶声, 蔑视 动词hiss的现在分词形式

参考例句：

• The steam escaped with a loud hissing noise. 蒸汽大声地嘶嘶冒了出来。
• His ears were still hissing with the rustle of the leaves. 他耳朵里还听得萨萨萨的声音和屑索屑索的怪声。 来自汉英文学 - 春蚕

348 spout   

v.喷出，涌出；滔滔不绝地讲；n.喷管；水柱

参考例句：

• Implication in folk wealth creativity and undertaking vigor spout.蕴藏于民间的财富创造力和创业活力喷涌而出。
• This acts as a spout to drain off water during a rainstorm.在暴风雨季，这东西被用作喷管来排水。

349 exertion   

n.尽力，努力

参考例句：

• We were sweating profusely from the exertion of moving the furniture.我们搬动家具大费气力，累得大汗淋漓。
• She was hot and breathless from the exertion of cycling uphill.由于用力骑车爬坡，她浑身发热。

350 discordance   

n.不调和，不和，不一致性；不整合；假整合

参考例句：

• The structure of and rock extremly complex in the discordance formation system in Karst area. 岩溶地区不整合地层系统之岩土构成复杂。 来自互联网
• Objective To analyze environmental factors of the discordance of concomitant strabismus phenotypes in monozygotic twins. 目的通过分析单卵双胎儿表型不一致性共同性斜视发病因素，探讨其发病机制。 来自互联网

351 watt   

n.瓦，瓦特

参考例句：

• The invention of the engine is creditable to Watt.发动机的发明归功于瓦特。
• The unit of power is watt.功率的单位是瓦特。

352 accomplishments   

n.造诣；完成( accomplishment的名词复数 )；技能；成绩；成就

参考例句：

• It was one of the President's greatest accomplishments. 那是总统最伟大的成就之一。
• Among her accomplishments were sewing,cooking,playing the piano and dancing. 她的才能包括缝纫、烹调、弹钢琴和跳舞。 来自《现代英汉综合大词典》

353 transcending   

超出或超越（经验、信念、描写能力等）的范围( transcend的现在分词 )； 优于或胜过…

参考例句：

• She felt herself transcending time and space. 她感到自己正在穿越时空。
• It'serves as a skeptical critic of the self-transcending element. 它对于超越自身因素起着一个怀疑论批评家的作用。

354 odds   

n.让步，机率，可能性，比率；胜败优劣之别

参考例句：

• The odds are 5 to 1 that she will win.她获胜的机会是五比一。
• Do you know the odds of winning the lottery once?你知道赢得一次彩票的几率多大吗？

355 explicitly   

ad.明确地，显然地

参考例句：

• The plan does not explicitly endorse the private ownership of land. 该计划没有明确地支持土地私有制。
• SARA amended section 113 to provide explicitly for a right to contribution. 《最高基金修正与再授权法案》修正了第123条，清楚地规定了分配权。 来自英汉非文学 - 环境法 - 环境法

356 radically   

ad.根本地，本质地

参考例句：

• I think we may have to rethink our policies fairly radically. 我认为我们可能要对我们的政策进行根本的反思。
• The health service must be radically reformed. 公共医疗卫生服务必须进行彻底改革。

357 repulsive   

adj.排斥的，使人反感的

参考例句：

• She found the idea deeply repulsive.她发现这个想法很恶心。
• The repulsive force within the nucleus is enormous.核子内部的斥力是巨大的。

358 followers   

追随者( follower的名词复数 )； 用户； 契据的附面； 从动件

参考例句：

• the followers of Mahatma Gandhi 圣雄甘地的拥护者
• The reformer soon gathered a band of followers round him. 改革者很快就获得一群追随者支持他。

359 reigned   

vi.当政，统治（reign的过去式形式）

参考例句：

• Silence reigned in the hall. 全场肃静。 来自《现代汉英综合大词典》
• Night was deep and dead silence reigned everywhere. 夜深人静，一片死寂。 来自《现代汉英综合大词典》

360 supreme   

adj.极度的，最重要的；至高的，最高的

参考例句：

• It was the supreme moment in his life.那是他一生中最重要的时刻。
• He handed up the indictment to the supreme court.他把起诉书送交最高法院。

361 permanently   

adv.永恒地，永久地，固定不变地

参考例句：

• The accident left him permanently scarred.那次事故给他留下了永久的伤疤。
• The ship is now permanently moored on the Thames in London.该船现在永久地停泊在伦敦泰晤士河边。

362 ingenuity   

n.别出心裁；善于发明创造

参考例句：

• The boy showed ingenuity in making toys.那个小男孩做玩具很有创造力。
• I admire your ingenuity and perseverance.我钦佩你的别出心裁和毅力。

363 analytic   

adj.分析的，用分析方法的

参考例句：

• The boy has an analytic mind. 这男孩有分析的头脑。
• Latin is a synthetic language,while English is analytic.拉丁文是一种综合性语言，而英语是一种分析性语言。

364 hideous   

adj.丑陋的，可憎的，可怕的，恐怖的

参考例句：

• The whole experience had been like some hideous nightmare.整个经历就像一场可怕的噩梦。
• They're not like dogs,they're hideous brutes.它们不像狗，是丑陋的畜牲。

365 glib   

adj.圆滑的，油嘴滑舌的

参考例句：

• His glib talk sounds as sweet as a song.他说的比唱的还好听。
• The fellow has a very glib tongue.这家伙嘴油得很。

366 jargon   

n.术语，行话

参考例句：

• They will not hear critics with their horrible jargon.他们不愿意听到评论家们那些可怕的行话。
• It is important not to be overawed by the mathematical jargon.要紧的是不要被数学的术语所吓倒.

367 originality   

n.创造力，独创性；新颖

参考例句：

• The name of the game in pop music is originality.流行音乐的本质是独创性。
• He displayed an originality amounting almost to genius.他显示出近乎天才的创造性。

368 hindrance   

n.妨碍，障碍

参考例句：

• Now they can construct tunnel systems without hindrance.现在他们可以顺利地建造隧道系统了。
• The heavy baggage was a great hindrance to me.那件行李成了我的大累赘。

369 vaguely   

adv.含糊地，暖昧地

参考例句：

• He had talked vaguely of going to work abroad.他含糊其词地说了到国外工作的事。
• He looked vaguely before him with unseeing eyes.他迷迷糊糊的望着前面，对一切都视而不见。