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英语听力：自然百科 大迁徙 Great Migrations—16

时间：2014-05-21 08:04:47

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（单词翻译）

 Finally, they can rest. For another five months, they will cling to this winter refuge, entering a sort of "waking" trance of energy conservation. Until the longer days of spring awaken1 them again to mate and pass along to the young--their migratory2 imperative3, to fill the skies with a sun-spangled yearning4 to move, to start the whole glorious impossible journey once again. 

 
On the other side of the world, another spectacular generation of nomads5 is about to hatch. Over the next three weeks, the red crab6 eggs will drift in the perilous7 nursery of the Indian Ocean and morph into larvae8. Most years, the larvae never make it home, swept away by ocean currents or devoured9 by fish. But once or twice every decade, a confluence10 of mild weather and scarce predators11 gives birth to a moving miracle. 
 
By the millions, they pour over the beaches of their birth like a living pink tide. They shed their larval casing becoming air breathers and retrace12 their parents' tortuous13 course guided only by instincts encoded deep in their DNA14. From this moment on, they are migrants, compelled to move, no matter what.

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1 awaken byMzdD     
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。
2 migratory jwQyB     
n.候鸟，迁移
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。
  • This does not negate the idea of migratory aptitude.这并没有否定迁移能力这一概念。
3 imperative BcdzC     
n.命令，需要；规则；祈使语气；adj.强制的；紧急的
参考例句：
  • He always speaks in an imperative tone of voice.他老是用命令的口吻讲话。
  • The events of the past few days make it imperative for her to act.过去这几天发生的事迫使她不得不立即行动。
4 yearning hezzPJ     
a.渴望的；向往的；怀念的
参考例句：
  • a yearning for a quiet life 对宁静生活的向往
  • He felt a great yearning after his old job. 他对过去的工作有一种强烈的渴想。
5 nomads 768a0f027c2142bf3f626e9422a6ffe9     
n.游牧部落的一员( nomad的名词复数 )；流浪者；游牧生活；流浪生活
参考例句：
  • For ten years she dwelled among the nomads of North America. 她在北美游牧民中生活了十年。
  • Nomads have inhabited this region for thousands of years. 游牧民族在这地区居住已有数千年了。 来自《简明英汉词典》
6 crab xoozE     
n.螃蟹，偏航，脾气乖戾的人，酸苹果；vi.捕蟹，偏航，发牢骚；vt.使偏航，发脾气
参考例句：
  • I can't remember when I last had crab.我不记得上次吃蟹是什么时候了。
  • The skin on my face felt as hard as a crab's back.我脸上的皮仿佛僵硬了，就象螃蟹的壳似的。
7 perilous E3xz6     
adj.危险的，冒险的
参考例句：
  • The journey through the jungle was perilous.穿过丛林的旅行充满了危险。
  • We have been carried in safety through a perilous crisis.历经一连串危机，我们如今已安然无恙。
8 larvae w2CxP     
n.幼虫
参考例句：
  • Larvae are parasitic on sheep.幼虫寄生在绵羊的身上。
  • The larvae prey upon small aphids.这种幼虫以小蚜虫为食。
9 devoured af343afccf250213c6b0cadbf3a346a9     
吞没( devour的过去式和过去分词 )； 耗尽； 津津有味地看； 狼吞虎咽地吃光
参考例句：
  • She devoured everything she could lay her hands on: books, magazines and newspapers. 无论是书、杂志，还是报纸，只要能弄得到，她都看得津津有味。
  • The lions devoured a zebra in a short time. 狮子一会儿就吃掉了一匹斑马。
10 confluence PnbyL     
n.汇合，聚集
参考例句：
  • They built the city at the confluence of two rivers.他们建造了城市的汇合两条河流。
  • The whole DV movements actually was a confluence of several trends.整个当时的DV运动，实际上是几股潮流的同谋。
11 predators 48b965855934a5395e409c1112d94f63     
n.食肉动物( predator的名词复数 )；奴役他人者（尤指在财务或性关系方面）
参考例句：
  • birds and their earthbound predators 鸟和地面上捕食它们的动物
  • The eyes of predators are highly sensitive to the slightest movement. 捕食性动物的眼睛能感觉到最细小的动静。 来自《简明英汉词典》
12 retrace VjUzyj     
v.折回；追溯，探源
参考例句：
  • He retraced his steps to the spot where he'd left the case.他折回到他丢下箱子的地方。
  • You must retrace your steps.你必须折回原来走过的路。
13 tortuous 7J2za     
adj.弯弯曲曲的，蜿蜒的
参考例句：
  • We have travelled a tortuous road.我们走过了曲折的道路。
  • They walked through the tortuous streets of the old city.他们步行穿过老城区中心弯弯曲曲的街道。
14 DNA 4u3z1l     
(缩)deoxyribonucleic acid 脱氧核糖核酸
参考例句：
  • DNA is stored in the nucleus of a cell.脱氧核糖核酸储存于细胞的细胞核里。
  • Gene mutations are alterations in the DNA code.基因突变是指DNA密码的改变。

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