“A cat is at first a tiny little pink-nosed creature, so small that it could rest in the hollow of the hand. In one or two months it is a pretty kitten that amuses itself at a mere6 nothing, and with its nimble paw whips the wisp of paper that one throws before it. Another year, and it is a tom-cat that patiently watches for mice or joins battle with its rivals on the roof. But, whether a tiny creature hardly able to open its little blue eyes, or a pretty playful kitten, or a big quarrelsome tom-cat, it has always the form of a cat.
“It is otherwise with insects. The swallow-tail, under its form of butterfly, is not first small, then medium, then large. When, for the first time, it opens its wings and takes flight, it is as large as it ever will be. When it comes out from under ground, where it lived as a grub, when for the first time it appears in the daylight, the June bug7 is such as you know it. There are little cats, but no little swallow-tails nor little June bugs8. After the metamorphosis, an insect is what it will be to the end.”
“But I have seen small June bugs flying round the willows10 in the evening,” objected Jules.
“Those little June bugs are of a different kind. They will always remain the same. Never will they grow and become common June bugs, any more than a cat would grow into a tiger, which it resembles so much.
“The grub alone grows. At first very small on coming out of the egg, little by little it acquires a size in conformity11 with the future insect. It gathers the materials that the metamorphosis will use,—materials for the wings, antenn?, legs, and all those things that the larva does not have, but that the insect must have. Out of what will the big green worm that lives in dead wood, and must some day become a stag-beetle12, make the enormous branched mandibles and the robust13 horny covering of the perfect insect? Of what will the larva make the long antenn? of the capricorn? Of what will the caterpillar14 make the large wings of the swallow-tail? Of that which the caterpillar, larva, and worm amass15 now, with thrifty16 hoarding17 of life-supporting matter.
“If the little pink-nosed cat were born without ears, paws, tail, fur, mustaches, if it were simply a little ball of flesh, and should some day have to acquire all at once, while asleep, ears, paws, tail, fur, mustaches, and many other things, is it not true that this work of life would necessitate18 materials gathered together beforehand and held in reserve in the fatty tissues of the animal? No thing can be made from nothing; the smallest hair of the cat’s mustache shoots forth19 at the expense of the substance of the animal, substance which it acquires by eating.
Goat Moth4
“The larva is in precisely20 this case: it has nothing, or next to nothing, that the perfect insects must have. It must therefore amass, in view of future changes, materials for the change; it must eat for two: for itself first, and then for the insect that will come from its substance, transformed and, in a sense, recast. So the larv? are endowed with an incomparable appetite. As I have said, to eat is their sole business. They eat night and day, often without stopping, without taking breath. To lose a mouthful, what imprudence! The future butterfly would perhaps have one scale less to its wings. So they eat gluttonously21, take on a stomach, become big, fat, plump. It is the duty of larv?.
“Some attack plants; they browse22 on the leaves, chew the flowers, bite the flesh of fruit. Others have a stomach strong enough to digest wood; they hollow out galleries in the tree-trunks, file off, grate, pulverize23 the hardest oak, as well as the tender willow9. Others, again, prefer decomposed24 animal matter; they haunt infected corpses25, fill their stomachs with rottenness. Still others seek excrement26 and feast on filth27. They are all scavengers on whom has developed the high mission of cleansing28 the earth of its pollution. You would sicken at the mere thought of these worms that swarm29 in pus; yet one of the most important services, a providential service, is rendered by these disgusting eaters which clear away infection and give back its constituent30 elements to life. As if to make amends31 for its filthy32 needs, one of these larv? will later be a magnificent fly, rivaling polished bronze in its brilliancy; another, a beetle perfumed with musk33, its rich coat vying34 with gold and precious stones in splendor35.
Phylloxera
“But these larv? devoted36 to the work of general sanitation37 cannot make us forget other eaters, of whom we are victims. The grubs of the June bug alone sometimes multiply so rapidly in the ground that immense tracts38 are denuded39 of vegetation, which is gnawed40 at the roots. The forester’s shrubs42, the farmer’s harvests, the gardener’s plants, just when everything seems prosperous, some fine morning, hang withered43, smitten44 to death. The worm has passed that way, and all is lost. Fire could not have committed more frightful45 ravages47. A miserable48 yellow louse, hardly visible, lives under ground, where it attacks the roots of the grape vine. It is called phylloxera. Its calamitous49 breed threatens to destroy all our vineyards. Some grubs, small enough to lodge50 in a grain of wheat, ravage46 the wheat in our granaries and leave only the bran. Others browse the lucerne so that the mower51 finds nothing left. Others, for years, gnaw41 at the heart of the wood of the oak, poplar, pine, and divers52, other large trees. Others, which turn into those little white butterflies flying around the lamp in the evening and called moths53, eat our cloth stuffs bit by bit, and finish by reducing them to rags. Others attack wainscoting, old furniture, and reduce them to powder. Others—But I should never get through if I were to tell you all. This little people to which we often disdain54 to pay the slightest attention, this little race of insects, is so powerful on account of the robust appetite of its larv?, that man ought seriously to reckon with it. If a certain grub succeeds in multiplying beyond measure, whole provinces are threatened with the tragic55 fate of starvation. And we are left in perfect ignorance on the subject of these devourers! How can you defend yourself if the enemy is unknown to you? Ah, if I only had the management of these things! As for you, my dear children, while waiting for our talks to be resumed with more detail concerning these ravagers, remember this: the larv? of insects are the great eaters of this world, the providential demolishers that finish the work of death and thus prepare for the work of life, since everything, or nearly everything passes through their stomach.”
点击收听单词发音
1 foresight | |
n.先见之明,深谋远虑 | |
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2 nourishment | |
n.食物,营养品;营养情况 | |
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3 procure | |
vt.获得,取得,促成;vi.拉皮条 | |
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4 moth | |
n.蛾,蛀虫 | |
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5 attaining | |
(通常经过努力)实现( attain的现在分词 ); 达到; 获得; 达到(某年龄、水平、状况) | |
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6 mere | |
adj.纯粹的;仅仅,只不过 | |
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7 bug | |
n.虫子;故障;窃听器;vt.纠缠;装窃听器 | |
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8 bugs | |
adj.疯狂的,发疯的n.窃听器( bug的名词复数 );病菌;虫子;[计算机](制作软件程序所产生的意料不到的)错误 | |
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9 willow | |
n.柳树 | |
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10 willows | |
n.柳树( willow的名词复数 );柳木 | |
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11 conformity | |
n.一致,遵从,顺从 | |
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12 beetle | |
n.甲虫,近视眼的人 | |
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13 robust | |
adj.强壮的,强健的,粗野的,需要体力的,浓的 | |
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14 caterpillar | |
n.毛虫,蝴蝶的幼虫 | |
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15 amass | |
vt.积累,积聚 | |
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16 thrifty | |
adj.节俭的;兴旺的;健壮的 | |
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17 hoarding | |
n.贮藏;积蓄;临时围墙;囤积v.积蓄并储藏(某物)( hoard的现在分词 ) | |
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18 necessitate | |
v.使成为必要,需要 | |
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19 forth | |
adv.向前;向外,往外 | |
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20 precisely | |
adv.恰好,正好,精确地,细致地 | |
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21 gluttonously | |
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22 browse | |
vi.随意翻阅,浏览;(牛、羊等)吃草 | |
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23 pulverize | |
v.研磨成粉;摧毁 | |
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24 decomposed | |
已分解的,已腐烂的 | |
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25 corpses | |
n.死尸,尸体( corpse的名词复数 ) | |
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26 excrement | |
n.排泄物,粪便 | |
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27 filth | |
n.肮脏,污物,污秽;淫猥 | |
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28 cleansing | |
n. 净化(垃圾) adj. 清洁用的 动词cleanse的现在分词 | |
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29 swarm | |
n.(昆虫)等一大群;vi.成群飞舞;蜂拥而入 | |
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30 constituent | |
n.选民;成分,组分;adj.组成的,构成的 | |
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31 amends | |
n. 赔偿 | |
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32 filthy | |
adj.卑劣的;恶劣的,肮脏的 | |
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33 musk | |
n.麝香, 能发出麝香的各种各样的植物,香猫 | |
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34 vying | |
adj.竞争的;比赛的 | |
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35 splendor | |
n.光彩;壮丽,华丽;显赫,辉煌 | |
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36 devoted | |
adj.忠诚的,忠实的,热心的,献身于...的 | |
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37 sanitation | |
n.公共卫生,环境卫生,卫生设备 | |
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38 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 | |
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39 denuded | |
adj.[医]变光的,裸露的v.使赤裸( denude的过去式和过去分词 );剥光覆盖物 | |
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40 gnawed | |
咬( gnaw的过去式和过去分词 ); (长时间) 折磨某人; (使)苦恼; (长时间)危害某事物 | |
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41 gnaw | |
v.不断地啃、咬;使苦恼,折磨 | |
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42 shrubs | |
灌木( shrub的名词复数 ) | |
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43 withered | |
adj. 枯萎的,干瘪的,(人身体的部分器官)因病萎缩的或未发育良好的 动词wither的过去式和过去分词形式 | |
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44 smitten | |
猛打,重击,打击( smite的过去分词 ) | |
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45 frightful | |
adj.可怕的;讨厌的 | |
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46 ravage | |
vt.使...荒废,破坏...;n.破坏,掠夺,荒废 | |
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47 ravages | |
劫掠后的残迹,破坏的结果,毁坏后的残迹 | |
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48 miserable | |
adj.悲惨的,痛苦的;可怜的,糟糕的 | |
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49 calamitous | |
adj.灾难的,悲惨的;多灾多难;惨重 | |
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50 lodge | |
v.临时住宿,寄宿,寄存,容纳;n.传达室,小旅馆 | |
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51 mower | |
n.割草机 | |
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52 divers | |
adj.不同的;种种的 | |
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53 moths | |
n.蛾( moth的名词复数 ) | |
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54 disdain | |
n.鄙视,轻视;v.轻视,鄙视,不屑 | |
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55 tragic | |
adj.悲剧的,悲剧性的,悲惨的 | |
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