CHAPTER I THE AGE OF ELECTRICITY

 THE year 1847 marked a period of great territorial¹ acquisition by the American people, with incalculable additions to their actual and potential wealth. By the rational compromise with England in the dispute over the Oregon region, President Polk had secured during 1846, for undisturbed settlement, three hundred thousand square miles of forest, fertile land, and fisheries, including the whole fair Columbia Valley. Our active "policy of the Pacific" dated from that hour. With swift and clinching² succession came the melodramatic Mexican War, and February, 1848, saw another vast territory south of Oregon and west of the Rocky Mountains added by treaty to the United States. Thus in about eighteen months there had been pieced into the national domain³ for quick development and exploitation a region as large as the entire union of Thirteen States at the close of the War of Independence. Moreover, within its boundaries was embraced all the great American gold-field, just on the eve of discovery, for Marshall had detected the shining particles in the mill-race at the foot of the Sierra Nevada nine days before Mexico signed away her rights in California and in all the vague, remote hinterland facing Cathayward.

 

Equally momentous⁴ were the times in Europe, where the attempt to secure opportunities of expansion as well as larger liberty for the individual took quite different form. The old absolutist system of government was fast breaking up, and ancient thrones were tottering⁵. The red lava⁶ of deep revolutionary fires oozed⁷ up through many glowing cracks in the political crust, and all the social strata⁸ were shaken. That the wild outbursts of insurrection midway in the fifth decade failed and died away was not surprising, for the superincumbent deposits of tradition and convention were thick. But the retrospect⁹ indicates that many reforms and political changes were accomplished¹⁰, although the process involved the exile of not a few ardent¹¹ spirits to America, to become leading statesmen, inventors, journalists, and financiers. In 1847, too, Russia began her tremendous march eastward¹² into Central Asia, just as France was solidifying¹³ her first gains on the littoral¹⁴ of northern Africa. In England the fierce fervor¹⁵ of the Chartist movement, with its violent rhetoric¹⁶ as to the rights of man, was sobering down and passing pervasively¹⁷ into numerous practical schemes for social and political amelioration, constituting in their entirety a most profound change throughout every part of the national life.

 

Into such times Thomas Alva Edison was born, and his relations to them and to the events of the past sixty years are the subject of this narrative¹⁸. Aside from the personal interest that attaches to the picturesque¹⁹ career, so typically American, there is a broader aspect in which the work of the "Franklin of the Nineteenth Century" touches the welfare and progress of the race. It is difficult at any time to determine the effect of any single invention, and the investigation²⁰ becomes more difficult where inventions of the first class have been crowded upon each other in rapid and bewildering succession. But it will be admitted that in Edison one deals with a central figure of the great age that saw the invention and introduction in practical form of the telegraph, the submarine cable, the telephone, the electric light, the electric railway, the electric trolley-car, the storage battery, the electric motor, the phonograph, the wireless²¹ telegraph; and that the influence of these on the world's affairs has not been excelled at any time by that of any other corresponding advances in the arts and sciences. These pages deal with Edison's share in the great work of the last half century in abridging²² distance, communicating intelligence, lessening²³ toil²⁴, improving illumination, recording²⁵ forever the human voice; and on behalf of inventive genius it may be urged that its beneficent results and gifts to mankind compare with any to be credited to statesman, warrior²⁶, or creative writer of the same period.

 

Viewed from the standpoint of inventive progress, the first half of the nineteenth century had passed very profitably when Edison appeared—every year marked by some notable achievement in the arts and sciences, with promise of its early and abundant fruition in commerce and industry. There had been exactly four decades of steam navigation on American waters. Railways were growing at the rate of nearly one thousand miles annually²⁷. Gas had become familiar as a means of illumination in large cities. Looms²⁸ and tools and printing-presses were everywhere being liberated²⁹ from the slow toil of man-power. The first photographs had been taken. Chloroform, nitrous oxide³⁰ gas, and ether had been placed at the service of the physician in saving life, and the revolver, guncotton, and nitroglycerine added to the agencies for slaughter³¹. New metals, chemicals, and elements had become available in large numbers, gases had been liquefied and solidified³², and the range of useful heat and cold indefinitely extended. The safety-lamp had been given to the miner, the caisson to the bridge-builder, the anti-friction³³ metal to the mechanic for bearings. It was already known how to vulcanize rubber, and how to galvanize iron. The application of machinery³⁴ in the harvest-field had begun with the embryonic³⁵ reaper³⁶, while both the bicycle and the automobile³⁷ were heralded³⁸ in primitive³⁹ prototypes. The gigantic expansion of the iron and steel industry was foreshadowed in the change from wood to coal in the smelting⁴⁰ furnaces. The sewing-machine had brought with it, like the friction match, one of the most profound influences in modifying domestic life, and making it different from that of all preceding time.

 

Even in 1847 few of these things had lost their novelty, most of them were in the earlier stages of development. But it is when we turn to electricity that the rich virgin⁴¹ condition of an illimitable new kingdom of discovery is seen. Perhaps the word "utilization⁴²" or "application" is better than discovery, for then, as now, an endless wealth of phenomena⁴³ noted⁴⁴ by experimenters from Gilbert to Franklin and Faraday awaited the invention that could alone render them useful to mankind. The eighteenth century, keenly curious and ceaselessly active in this fascinating field of investigation, had not, after all, left much of a legacy⁴⁵ in either principles or appliances. The lodestone and the compass; the frictional machine; the Leyden jar; the nature of conductors and insulators⁴⁶; the identity of electricity and the thunder-storm flash; the use of lightning-rods; the physiological⁴⁷ effects of an electrical shock—these constituted the bulk of the bequest⁴⁸ to which philosophers were the only heirs. Pregnant with possibilities were many of the observations that had been recorded. But these few appliances made up the meagre kit⁴⁹ of tools with which the nineteenth century entered upon its task of acquiring the arts and conveniences now such an intimate part of "human nature's daily food" that the average American to-day pays more for his electrical service than he does for bread.

 

With the first year of the new century came Volta's invention of the chemical battery as a means of producing electricity. A well-known Italian picture represents Volta exhibiting his apparatus⁵⁰ before the young conqueror⁵¹ Napoleon, then ravishing from the Peninsula its treasure of ancient art and founding an ephemeral empire. At such a moment this gift of despoiled⁵² Italy to the world was a noble revenge, setting in motion incalculable beneficent forces and agencies. For the first time man had command of a steady supply of electricity without toil or effort. The useful results obtainable previously⁵³ from the current of a frictional machine were not much greater than those to be derived⁵⁴ from the flight of a rocket. While the frictional appliance is still employed in medicine, it ranks with the flint axe⁵⁵ and the tinder-box in industrial obsolescence⁵⁶. No art or trade could be founded on it; no diminution⁵⁷ of daily work or increase of daily comfort could be secured with it. But the little battery with its metal plates in a weak solution proved a perennial⁵⁸ reservoir of electrical energy, safe and controllable, from which supplies could be drawn⁵⁹ at will. That which was wild had become domesticated⁶⁰; regular crops took the place of haphazard⁶¹ gleanings from brake or prairie; the possibility of electrical starvation was forever left behind.

 

Immediately new processes of inestimable value revealed themselves; new methods were suggested. Almost all the electrical arts now employed made their beginnings in the next twenty-five years, and while the more extensive of them depend to-day on the dynamo for electrical energy, some of the most important still remain in loyal allegiance to the older source. The battery itself soon underwent modifications⁶³, and new types were evolved—the storage, the double-fluid, and the dry. Various analogies next pointed⁶⁴ to the use of heat, and the thermoelectric cell emerged, embodying⁶⁵ the application of flame to the junction⁶⁶ of two different metals. Davy, of the safety-lamp, threw a volume of current across the gap between two sticks of charcoal⁶⁷, and the voltaic arc, forerunner⁶⁸ of electric lighting⁶⁹, shed its bright beams upon a dazzled world. The decomposition⁷⁰ of water by electrolytic action was recognized and made the basis of communicating at a distance even before the days of the electromagnet. The ties that bind⁷¹ electricity and magnetism⁷² in twinship of relation and interaction were detected, and Faraday's work in induction⁷³ gave the world at once the dynamo and the motor. "Hitch⁷⁴ your wagon⁷⁵ to a star," said Emerson. To all the coal-fields and all the waterfalls Faraday had directly hitched⁷⁶ the wheels of industry. Not only was it now possible to convert mechanical energy into electricity cheaply and in illimitable quantities, but electricity at once showed its ubiquitous availability as a motive⁷⁷ power. Boats were propelled by it, cars were hauled, and even papers printed. Electroplating became an art, and telegraphy sprang into active being on both sides of the Atlantic.

 

At the time Edison was born, in 1847, telegraphy, upon which he was to leave so indelible an imprint⁷⁸, had barely struggled into acceptance by the public. In England, Wheatstone and Cooke had introduced a ponderous⁷⁹ magnetic needle telegraph. In America, in 1840, Morse had taken out his first patent on an electromagnetic telegraph, the principle of which is dominating in the art to this day. Four years later the memorable⁸⁰ message "What hath God wrought⁸¹!" was sent by young Miss Ellsworth over his circuits, and incredulous Washington was advised by wire of the action of the Democratic Convention in Baltimore in nominating Polk. By 1847 circuits had been strung between Washington and New York, under private enterprise, the Government having declined to buy the Morse system for $100,000. Everything was crude and primitive. The poles were two hundred feet apart and could barely hold up a wash-line. The slim, bare, copper⁸² wire snapped on the least provocation⁸³, and the circuit was "down" for thirty-six days in the first six months. The little glass-knob insulators made seductive targets for ignorant sportsmen. Attempts to insulate the line wire were limited to coating it with tar⁶² or smearing⁸⁴ it with wax for the benefit of all the bees in the neighborhood. The farthest western reach of the telegraph lines in 1847 was Pittsburg, with three-ply iron wire mounted on square glass insulators with a little wooden pentroof for protection. In that office, where Andrew Carnegie was a messenger boy, the magnets in use to receive the signals sent with the aid of powerful nitric-acid batteries weighed as much as seventy-five pounds apiece. But the business was fortunately small at the outset, until the new device, patronized chiefly by lottery-men, had proved its utility. Then came the great outburst of activity. Within a score of years telegraph wires covered the whole occupied country with a network, and the first great electrical industry was a pronounced success, yielding to its pioneers the first great harvest of electrical fortunes. It had been a sharp struggle for bare existence, during which such a man as the founder⁸⁵ of Cornell University had been glad to get breakfast in New York with a quarter-dollar picked up on Broadway.

 

 

1 territorial   

adj.领土的，领地的

参考例句：

• The country is fighting to preserve its territorial integrity.该国在为保持领土的完整而进行斗争。
• They were not allowed to fish in our territorial waters.不允许他们在我国领海捕鱼。

2 clinching   

v.（尤指两人）互相紧紧抱[扭]住( clinch的现在分词 )；解决（争端、交易），达成（协议）

参考例句：

• Joe gets clinching evidence of the brains role when he dreams. 乔做梦时得到了大脑发生作用的决定性依据。 来自辞典例句
• Clinching, wrestling, pushing, or seizing, without attempting a throw or other technique. 抱，扭摔，推或抓而没有摔或其它的技术。 来自互联网

3 domain   

n.(活动等)领域，范围；领地，势力范围

参考例句：

• This information should be in the public domain.这一消息应该为公众所知。
• This question comes into the domain of philosophy.这一问题属于哲学范畴。

4 momentous   

adj.重要的，重大的

参考例句：

• I am deeply honoured to be invited to this momentous occasion.能应邀出席如此重要的场合，我深感荣幸。
• The momentous news was that war had begun.重大的新闻是战争已经开始。

5 tottering   

adj.蹒跚的，动摇的v.走得或动得不稳( totter的现在分词 )；踉跄；蹒跚；摇摇欲坠

参考例句：

• the tottering walls of the castle 古城堡摇摇欲坠的墙壁
• With power and to spare we must pursue the tottering foe. 宜将剩勇追穷寇。 来自《现代汉英综合大词典》

6 lava   

n.熔岩，火山岩

参考例句：

• The lava flowed down the sides of the volcano.熔岩沿火山坡面涌流而下。
• His anger spilled out like lava.他的愤怒像火山爆发似的迸发出来。

7 oozed   

v.（浓液等）慢慢地冒出，渗出( ooze的过去式和过去分词 )；使（液体）缓缓流出；（浓液）渗出，慢慢流出

参考例句：

• Blood oozed out of the wound. 血从伤口慢慢流出来。
• Mud oozed from underground. 泥浆从地下冒出来。 来自《现代汉英综合大词典》

8 strata   

n.地层（复数）；社会阶层

参考例句：

• The older strata gradually disintegrate.较老的岩层渐渐风化。
• They represent all social strata.他们代表各个社会阶层。

9 retrospect   

n.回顾，追溯；v.回顾，回想，追溯

参考例句：

• One's school life seems happier in retrospect than in reality.学校生活回忆起来显得比实际上要快乐。
• In retrospect,it's easy to see why we were wrong.回顾过去就很容易明白我们的错处了。

10 accomplished   

adj.有才艺的；有造诣的；达到了的

参考例句：

• Thanks to your help,we accomplished the task ahead of schedule.亏得你们帮忙,我们才提前完成了任务。
• Removal of excess heat is accomplished by means of a radiator.通过散热器完成多余热量的排出。

11 ardent   

adj.热情的，热烈的，强烈的，烈性的

参考例句：

• He's an ardent supporter of the local football team.他是本地足球队的热情支持者。
• Ardent expectations were held by his parents for his college career.他父母对他的大学学习抱着殷切的期望。

12 eastward   

adv.向东；adj.向东的；n.东方，东部

参考例句：

• The river here tends eastward.这条河从这里向东流。
• The crowd is heading eastward,believing that they can find gold there.人群正在向东移去，他们认为在那里可以找到黄金。

13 solidifying   

（使）成为固体，（使）变硬，（使）变得坚固( solidify的现在分词 )； 使团结一致； 充实，巩固； 具体化

参考例句：

• The substances are formed from a mixture of liquids solidifying under pressure. 这些材料是由几种液体混合在一起并加压使之凝固而成的。
• Painting is an art solidifies time and space for solidifying. 绘画是凝固了的时间和空间的艺术。

14 littoral   

adj.海岸的；湖岸的；n.沿（海）岸地区

参考例句：

• We should produce the littoral advantage well.我们应该把海滨的优势很好地发挥出来。
• The reservoir sandstone was believed to have been deposited in a littoral environment.储集层砂岩就被认为是近海环境的沉积。

15 fervor   

n.热诚；热心；炽热

参考例句：

• They were concerned only with their own religious fervor.他们只关心自己的宗教热诚。
• The speech aroused nationalist fervor.这个演讲喚起了民族主义热情。

16 rhetoric   

n.修辞学，浮夸之言语

参考例句：

• Do you know something about rhetoric?你懂点修辞学吗？
• Behind all the rhetoric,his relations with the army are dangerously poised.在冠冕堂皇的言辞背后，他和军队的关系岌岌可危。

17 pervasively   

adv.无处不在地，遍布地

参考例句：

• The idea of Healthy, Brief, Fashion, Comfort, Leisure "accepted pervasively." “健康、简约、时尚、舒适、休闲”家居理念得到人们认同。 来自互联网
• Knowledge is being used pervasively in the overall economic system. 知识与资讯正全面渗透到整个经济运作过程中去。 来自互联网

18 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。

19 picturesque   

adj.美丽如画的，（语言）生动的，绘声绘色的

参考例句：

• You can see the picturesque shores beside the river.在河边你可以看到景色如画的两岸。
• That was a picturesque phrase.那是一个形象化的说法。

20 investigation   

n.调查，调查研究

参考例句：

• In an investigation,a new fact became known, which told against him.在调查中新发现了一件对他不利的事实。
• He drew the conclusion by building on his own investigation.他根据自己的调查研究作出结论。

21 wireless   

adj.无线的；n.无线电

参考例句：

• There are a lot of wireless links in a radio.收音机里有许多无线电线路。
• Wireless messages tell us that the ship was sinking.无线电报告知我们那艘船正在下沉。

22 abridging   

节略( abridge的现在分词 )； 减少； 缩短； 剥夺（某人的）权利（或特权等）

参考例句：

• He's currently abridging his book. 他正在对他的书进行删节。
• First Amendment: "Congress shall make no law abridging the freedom of speech." （美国宪法）第一修正案规定议会不应该通过减损（公民）言论自由的法律。

23 lessening   

减轻，减少，变小

参考例句：

• So however much he earned, she spent it, her demands growing and lessening with his income. 祥子挣多少，她花多少，她的要求随着他的钱涨落。 来自汉英文学 - 骆驼祥子
• The talks have resulted in a lessening of suspicion. 谈话消减了彼此的怀疑。

24 toil   

vi.辛劳工作，艰难地行动；n.苦工，难事

参考例句：

• The wealth comes from the toil of the masses.财富来自大众的辛勤劳动。
• Every single grain is the result of toil.每一粒粮食都来之不易。

25 recording   

n.录音，记录

参考例句：

• How long will the recording of the song take?录下这首歌得花多少时间？
• I want to play you a recording of the rehearsal.我想给你放一下彩排的录像。

26 warrior   

n.勇士，武士，斗士

参考例句：

• The young man is a bold warrior.这个年轻人是个很英勇的武士。
• A true warrior values glory and honor above life.一个真正的勇士珍视荣誉胜过生命。

27 annually   

adv.一年一次，每年

参考例句：

• Many migratory birds visit this lake annually.许多候鸟每年到这个湖上作短期逗留。
• They celebrate their wedding anniversary annually.他们每年庆祝一番结婚纪念日。

28 looms   

n.织布机( loom的名词复数 )v.隐约出现，阴森地逼近( loom的第三人称单数 )；隐约出现，阴森地逼近

参考例句：

• All were busily engaged,men at their ploughs,women at their looms. 大家都很忙，男的耕田，女的织布。 来自《简明英汉词典》
• The factory has twenty-five looms. 那家工厂有25台织布机。 来自《简明英汉词典》

29 liberated   

a.无拘束的，放纵的

参考例句：

• The city was liberated by the advancing army. 军队向前挺进，解放了那座城市。
• The heat brings about a chemical reaction, and oxygen is liberated. 热量引起化学反应，释放出氧气。

30 oxide   

n.氧化物

参考例句：

• Oxide is usually seen in our daily life.在我们的日常生活中氧化物很常见。
• How can you get rid of this oxide coating?你们该怎样除去这些氧化皮？

31 slaughter   

n.屠杀，屠宰；vt.屠杀，宰杀

参考例句：

• I couldn't stand to watch them slaughter the cattle.我不忍看他们宰牛。
• Wholesale slaughter was carried out in the name of progress.大规模的屠杀在维护进步的名义下进行。

32 solidified   

（使）成为固体，（使）变硬，（使）变得坚固( solidify的过去式和过去分词 )； 使团结一致； 充实，巩固； 具体化

参考例句：

• Her attitudes solidified through privilege and habit. 由于特权和习惯使然，她的看法变得越来越难以改变。
• When threatened, he fires spheres of solidified air from his launcher! 当危险来临，他就会发射它的弹药！

33 friction   

n.摩擦，摩擦力

参考例句：

• When Joan returned to work,the friction between them increased.琼回来工作后，他们之间的摩擦加剧了。
• Friction acts on moving bodies and brings them to a stop.摩擦力作用于运动着的物体，并使其停止。

34 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。

35 embryonic   

adj.胚胎的

参考例句：

• It is still in an embryonic stage.它还处于萌芽阶段。
• The plan,as yet,only exists in embryonic form.这个计划迄今为止还只是在酝酿之中。

36 reaper   

n.收割者，收割机

参考例句：

• The painting is organized about a young reaper enjoying his noonday rest.这幅画的画面设计成一个年轻的割禾人在午间休息。
• A rabbit got caught in the blades of the reaper.一只兔子被卷到收割机的刀刃中去了。

37 automobile   

n.汽车，机动车

参考例句：

• He is repairing the brake lever of an automobile.他正在修理汽车的刹车杆。
• The automobile slowed down to go around the curves in the road.汽车在路上转弯时放慢了速度。

38 heralded   

v.预示( herald的过去式和过去分词 )；宣布（好或重要）

参考例句：

• The singing of the birds heralded in the day. 鸟鸣报晓。 来自《简明英汉词典》
• A fanfare of trumpets heralded the arrival of the King. 嘹亮的小号声宣告了国王驾到。 来自《简明英汉词典》

39 primitive   

adj.原始的；简单的；n.原(始)人，原始事物

参考例句：

• It is a primitive instinct to flee a place of danger.逃离危险的地方是一种原始本能。
• His book describes the march of the civilization of a primitive society.他的著作描述了一个原始社会的开化过程。

40 smelting   

n.熔炼v.熔炼，提炼（矿石）( smelt的现在分词 )

参考例句：

• a method of smelting iron 一种炼铁方法
• Fire provided a means of smelting ores. 火提供了熔炼矿石的手段。 来自辞典例句

41 virgin   

n.处女，未婚女子；adj.未经使用的；未经开发的

参考例句：

• Have you ever been to a virgin forest?你去过原始森林吗？
• There are vast expanses of virgin land in the remote regions.在边远地区有大片大片未开垦的土地。

42 utilization   

n.利用，效用

参考例句：

• Computer has found an increasingly wide utilization in all fields.电子计算机已越来越广泛地在各个领域得到应用。
• Modern forms of agricultural utilization,have completely refuted this assumption.现代农业利用形式，完全驳倒了这种想象。

43 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。

44 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。

45 legacy   

n.遗产，遗赠；先人(或过去)留下的东西

参考例句：

• They are the most precious cultural legacy our forefathers left.它们是我们祖先留下来的最宝贵的文化遗产。
• He thinks the legacy is a gift from the Gods.他认为这笔遗产是天赐之物。

46 insulators   

绝缘、隔热或隔音等的物质或装置( insulator的名词复数 )

参考例句：

• There is no sharp line separating conductors from insulators. 实际上并没有一个明显的界限将半导体和绝缘体分开。
• To reduce heat losses the pipes are covered by thermal insulators. 为了减少热散失，管子外包保温层。

47 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。

48 bequest   

n.遗赠；遗产，遗物

参考例句：

• In his will he made a substantial bequest to his wife.在遗嘱里他给妻子留下了一大笔遗产。
• The library has received a generous bequest from a local businessman.图书馆从当地一位商人那里得到了一大笔遗赠。

49 kit   

n.用具包，成套工具；随身携带物

参考例句：

• The kit consisted of about twenty cosmetic items.整套工具包括大约20种化妆用品。
• The captain wants to inspect your kit.船长想检查你的行装。

50 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。

51 conqueror   

n.征服者，胜利者

参考例句：

• We shall never yield to a conqueror.我们永远不会向征服者低头。
• They abandoned the city to the conqueror.他们把那个城市丢弃给征服者。

52 despoiled   

v.掠夺，抢劫( despoil的过去式和过去分词 )

参考例句：

• They despoiled the villagers of their belongings. 他们夺走了村民的财物。 来自《简明英汉词典》
• The victorious army despoiled the city of all its treasures. 得胜的军队把城里的财宝劫掠一空。 来自辞典例句

53 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。

54 derived   

vi.起源；由来；衍生；导出v.得到( derive的过去式和过去分词 )；（从…中）得到获得；源于；（从…中）提取

参考例句：

• Many English words are derived from Latin and Greek. 英语很多词源出于拉丁文和希腊文。 来自《简明英汉词典》
• He derived his enthusiasm for literature from his father. 他对文学的爱好是受他父亲的影响。 来自《简明英汉词典》

55 axe   

n.斧子；v.用斧头砍，削减

参考例句：

• Be careful with that sharp axe.那把斧子很锋利，你要当心。
• The edge of this axe has turned.这把斧子卷了刃了。

56 obsolescence   

n.过时，陈旧，废弃

参考例句：

• For some small unproductive mills,the reality is not merger but obsolescence and bankruptcy.对一些效率低下的小厂而言，现实不是合并，而是可能被淘汰和破产。
• Finally,the cost approach can provide a basis for allocating penalties,specifically economic obsolescence.最后，成本法可作为一个分配因陈旧特别是因经济

57 diminution   

n.减少；变小

参考例句：

• They hope for a small diminution in taxes.他们希望捐税能稍有减少。
• He experienced no diminution of his physical strength.他并未感觉体力衰落。

58 perennial   

adj.终年的；长久的

参考例句：

• I wonder at her perennial youthfulness.我对她青春常驻感到惊讶。
• There's a perennial shortage of teachers with science qualifications.有理科教学资格的老师一直都很短缺。

59 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。

60 domesticated   

adj.喜欢家庭生活的；（指动物）被驯养了的v.驯化( domesticate的过去式和过去分词 )

参考例句：

• He is thoroughly domesticated and cooks a delicious chicken casserole. 他精于家务，烹制的砂锅炖小鸡非常可口。 来自《简明英汉词典》
• The donkey is a domesticated form of the African wild ass. 驴是非洲野驴的一种已驯化的品种。 来自《简明英汉词典》

61 haphazard   

adj.无计划的，随意的，杂乱无章的

参考例句：

• The town grew in a haphazard way.这城镇无计划地随意发展。
• He regrerted his haphazard remarks.他悔不该随口说出那些评论话。

62 tar   

n.柏油，焦油；vt.涂或浇柏油/焦油于

参考例句：

• The roof was covered with tar.屋顶涂抹了一层沥青。
• We use tar to make roads.我们用沥青铺路。

63 modifications   

n.缓和( modification的名词复数 )；限制；更改；改变

参考例句：

• The engine was pulled apart for modifications and then reassembled. 发动机被拆开改型，然后再组装起来。 来自《简明英汉词典》
• The original plan had undergone fairly extensive modifications. 原计划已经作了相当大的修改。 来自《简明英汉词典》

64 pointed   

adj.尖的，直截了当的

参考例句：

• He gave me a very sharp pointed pencil.他给我一支削得非常尖的铅笔。
• She wished to show Mrs.John Dashwood by this pointed invitation to her brother.她想通过对达茨伍德夫人提出直截了当的邀请向她的哥哥表示出来。

65 embodying   

v.表现( embody的现在分词 )；象征；包括；包含

参考例句：

• Every instrument constitutes an independent contract embodying a payment obligation. 每张票据都构成一份独立的体现支付义务的合同。 来自口语例句
• Fowth, The aesthetical transcendency and the beauty embodying the man's liberty. \" 第四部分：审美的超越和作为人类自由最终体现的“美”。 来自互联网

66 junction   

n.连接，接合；交叉点，接合处，枢纽站

参考例句：

• There's a bridge at the junction of the two rivers.两河的汇合处有座桥。
• You must give way when you come to this junction.你到了这个路口必须让路。

67 charcoal   

n.炭，木炭，生物炭

参考例句：

• We need to get some more charcoal for the barbecue.我们烧烤需要更多的碳。
• Charcoal is used to filter water.木炭是用来过滤水的。

68 forerunner   

n.前身，先驱（者），预兆，祖先

参考例句：

• She is a forerunner of the modern women's movement.她是现代妇女运动的先驱。
• Penicillin was the forerunner of modern antibiotics.青霉素是现代抗生素的先导。

69 lighting   

n.照明，光线的明暗，舞台灯光

参考例句：

• The gas lamp gradually lost ground to electric lighting.煤气灯逐渐为电灯所代替。
• The lighting in that restaurant is soft and romantic.那个餐馆照明柔和而且浪漫。

70 decomposition   

n. 分解, 腐烂, 崩溃

参考例句：

• It is said that the magnetite was formed by a chemical process called thermal decomposition. 据说这枚陨星是在热分解的化学过程中形成的。
• The dehydration process leads to fairly extensive decomposition of the product. 脱水过程会导致产物相当程度的分解。

71 bind   

vt.捆，包扎；装订；约束；使凝固；vi.变硬

参考例句：

• I will let the waiter bind up the parcel for you.我让服务生帮你把包裹包起来。
• He wants a shirt that does not bind him.他要一件不使他觉得过紧的衬衫。

72 magnetism   

n.磁性，吸引力，磁学

参考例句：

• We know about magnetism by the way magnets act.我们通过磁铁的作用知道磁性是怎么一回事。
• His success showed his magnetism of courage and devotion.他的成功表现了他的胆量和热诚的魅力。

73 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。

74 hitch   

v.免费搭(车旅行)；系住；急提；n.故障；急拉

参考例句：

• They had an eighty-mile journey and decided to hitch hike.他们要走80英里的路程，最后决定搭便车。
• All the candidates are able to answer the questions without any hitch.所有报考者都能对答如流。

75 wagon   

n.四轮马车，手推车，面包车；无盖运货列车

参考例句：

• We have to fork the hay into the wagon.我们得把干草用叉子挑进马车里去。
• The muddy road bemired the wagon.马车陷入了泥泞的道路。

76 hitched   

（免费）搭乘他人之车( hitch的过去式和过去分词 )； 搭便车； 攀上； 跃上

参考例句：

• They hitched a ride in a truck. 他们搭乘了一辆路过的货车。
• We hitched a ride in a truck yesterday. 我们昨天顺便搭乘了一辆卡车。

77 motive   

n.动机，目的；adv.发动的，运动的

参考例句：

• The police could not find a motive for the murder.警察不能找到谋杀的动机。
• He had some motive in telling this fable.他讲这寓言故事是有用意的。

78 imprint   

n.印痕，痕迹；深刻的印象；vt.压印，牢记

参考例句：

• That dictionary is published under the Longman imprint.那本词典以朗曼公司的名义出版。
• Her speech left its imprint on me.她的演讲给我留下了深刻印象。

79 ponderous   

adj.沉重的，笨重的，(文章)冗长的

参考例句：

• His steps were heavy and ponderous.他的步伐沉重缓慢。
• It was easy to underestimate him because of his occasionally ponderous manner.由于他偶尔现出的沉闷的姿态，很容易使人小看了他。

80 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。

81 wrought   

v.引起；以…原料制作；运转；adj.制造的

参考例句：

• Events in Paris wrought a change in British opinion towards France and Germany.巴黎发生的事件改变了英国对法国和德国的看法。
• It's a walking stick with a gold head wrought in the form of a flower.那是一个金质花形包头的拐杖。

82 copper   

n.铜；铜币；铜器；adj.铜(制)的；(紫)铜色的

参考例句：

• The students are asked to prove the purity of copper.要求学生们检验铜的纯度。
• Copper is a good medium for the conduction of heat and electricity.铜是热和电的良导体。

83 provocation   

n.激怒，刺激，挑拨，挑衅的事物，激怒的原因

参考例句：

• He's got a fiery temper and flares up at the slightest provocation.他是火爆性子，一点就着。
• They did not react to this provocation.他们对这一挑衅未作反应。

84 smearing   

污点，拖尾效应

参考例句：

• The small boy spoilt the picture by smearing it with ink. 那孩子往画上抹墨水把画给毁了。
• Remove the screen carefully so as to avoid smearing the paste print. 小心的移开丝网，以避免它弄脏膏印。

85 Founder   

n.创始者，缔造者

参考例句：

• He was extolled as the founder of their Florentine school.他被称颂为佛罗伦萨画派的鼻祖。
• According to the old tradition,Romulus was the founder of Rome.按照古老的传说，罗穆卢斯是古罗马的建国者。