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英语听力：自然百科 大迁徙 Great Migrations—12

时间：2014-05-21 07:53:49

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（单词翻译）

 It takes four days for the larva to emerge. It gorges1 on its own egg case, before turning to tender milkweed. It must grow fat, build up its reserves for the long migration2 ahead. After two weeks of manic feasting, its body mass now 2,000 times what it was at birth. The caterpillar3 is ready. Anchored by silk, it begins its miracle. 

 
Over the next two weeks, the caterpillar literally4 dissolves into a bag of rich fluid. Its cells sprout5 anew, giving rise to wings, legs, antennae6... and then...
 
After a scant7 few hours, it's ready to fly. This is a creature truly born to move, born to outstrip8 its parents and grandparents' heroic efforts, carrying aloft the genetic9 hopes of the species. Incredibly, more than a billion super monarchs10 are now taking off. And for the first time in four generations, they're heading south, heading for their winter home.

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1 gorges 5cde0ae7c1a8aab9d4231408f62e6d4d     
n.山峡，峡谷( gorge的名词复数 )；咽喉v.（用食物把自己）塞饱，填饱( gorge的第三人称单数 )；作呕
参考例句：
  • The explorers were confronted with gorges(that were)almost impassable and rivers(that were)often unfordable. 探险人员面临着几乎是无路可通的峡谷和常常是无法渡过的河流。 来自辞典例句
  • We visited the Yangtse Gorges last summer. 去年夏天我们游历了长江三峡。 来自辞典例句
2 migration mDpxj     
n.迁移，移居，（鸟类等的）迁徙
参考例句：
  • Swallows begin their migration south in autumn.燕子在秋季开始向南方迁移。
  • He described the vernal migration of birds in detail.他详细地描述了鸟的春季移居。
3 caterpillar ir5zf     
n.毛虫，蝴蝶的幼虫
参考例句：
  • A butterfly is produced by metamorphosis from a caterpillar.蝴蝶是由毛虫脱胎变成的。
  • A caterpillar must pass through the cocoon stage to become a butterfly.毛毛虫必须经过茧的阶段才能变成蝴蝶。
4 literally 28Wzv     
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。
5 sprout ITizY     
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。
6 antennae lMdyk     
n.天线；触角
参考例句：
  • Sometimes a creature uses a pair of antennae to swim.有时某些动物使用其一对触须来游泳。
  • Cuba's government said that Cubans found watching American television on clandestine antennae would face three years in jail.古巴政府说那些用秘密天线收看美国电视的古巴人将面临三年监禁。
7 scant 2Dwzx     
adj.不充分的，不足的；v.减缩，限制，忽略
参考例句：
  • Don't scant the butter when you make a cake.做糕饼时不要吝惜奶油。
  • Many mothers pay scant attention to their own needs when their children are small.孩子们小的时候，许多母亲都忽视自己的需求。
8 outstrip MJ6xM     
v.超过，跑过
参考例句：
  • He can outstrip his friend both in sports and in studies.他能在体育和学习方面胜过他的朋友。
  • It is possible for us to outstrip the advanced countries in the world.我们能超过世界上先进的国家。
9 genetic PgIxp     
adj.遗传的，遗传学的
参考例句：
  • It's very difficult to treat genetic diseases.遗传性疾病治疗起来很困难。
  • Each daughter cell can receive a full complement of the genetic information.每个子细胞可以收到遗传信息的一个完全补偿物。
10 monarchs aa0c84cc147684fb2cc83dc453b67686     
君主，帝王( monarch的名词复数 )
参考例句：
  • Monarchs ruled England for centuries. 世袭君主统治英格兰有许多世纪。
  • Serving six monarchs of his native Great Britain, he has served all men's freedom and dignity. 他在大不列颠本国为六位君王服务，也为全人类的自由和尊严服务。 来自演讲部分

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