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英语听力：自然百科 大迁徙 Great Migrations—2

时间：2014-05-21 07:44:02

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（单词翻译）

 What on earth could drive this headlong rush to slaughter1?  Only earth herself with her insistent2 clocks. 

 
This story begins in the Great Rift3 Valley, where the continent is tearing itself apart and being reborn. 
 
The plains in the shadow of the rift, the Serengeti are threaded with the paths of the millions on the move in a constant burning search for fresh grass. 
 
Every year, more than a million wildebeest and 200,000 zebras must chase the seasonal4 rains in a 300-mile loop around Tanzania and Kenya. 
 
But here in the Serengeti, they pause for an avalanche5 of young, the most migration6-ready newborns on earth. The wildebeest have a scant7 three weeks to deliver half a million calves8, who have only minutes to get up on their feet, because the predators9 and the scavengers have the migration clock etched in their genes10 as well. 
 
For them, this is a weak and movable feast. For the newborns, it's "get going" or "get eaten".

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1 slaughter 8Tpz1     
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。
2 insistent s6ZxC     
adj.迫切的，坚持的
参考例句：
  • There was an insistent knock on my door.我听到一阵急促的敲门声。
  • He is most insistent on this point.他在这点上很坚持。
3 rift bCEzt     
n.裂口，隙缝，切口；v.裂开，割开，渗入
参考例句：
  • He was anxious to mend the rift between the two men.他急于弥合这两个人之间的裂痕。
  • The sun appeared through a rift in the clouds.太阳从云层间隙中冒出来。
4 seasonal LZ1xE     
adj.季节的，季节性的
参考例句：
  • The town relies on the seasonal tourist industry for jobs.这个城镇依靠季节性旅游业提供就业机会。
  • The hors d'oeuvre is seasonal vegetables.餐前小吃是应时蔬菜。
5 avalanche 8ujzl     
n.雪崩，大量涌来
参考例句：
  • They were killed by an avalanche in the Swiss Alps.他们在瑞士阿尔卑斯山的一次雪崩中罹难。
  • Higher still the snow was ready to avalanche.在更高处积雪随时都会崩塌。
6 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。
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 calves bb808da8ca944ebdbd9f1d2688237b0b     
n.(calf的复数)笨拙的男子，腓；腿肚子( calf的名词复数 )；牛犊；腓；小腿肚v.生小牛( calve的第三人称单数 )；（冰川）崩解；生（小牛等），产（犊）；使（冰川）崩解
参考例句：
  • a cow suckling her calves 给小牛吃奶的母牛
  • The calves are grazed intensively during their first season. 小牛在生长的第一季里集中喂养。 来自《简明英汉词典》
9 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》
10 genes 01914f8eac35d7e14afa065217edd8c0     
n.基因( gene的名词复数 )
参考例句：
  • You have good genes from your parents, so you should live a long time. 你从父母那儿获得优良的基因，所以能够活得很长。 来自《简明英汉词典》
  • Differences will help to reveal the functions of the genes. 它们间的差异将会帮助我们揭开基因多种功能。 来自英汉非文学 - 生命科学 - 生物技术的世纪

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