英语听力：自然百科 冰冻星球 前往地球尽头—15
时间：2019-01-22 作者：英语课 分类：自然百科2012年
英语课
The randoms of the sea ice are occupied by sun- bathing seals that have been here all winter. But the new arrivals're following the retreating ice edge and they have come here to hunt. Killer 1 whales, the oceans' top predator 2. Killers 3 are like wolves, for they will hunt animals far larger than themselves. But even smaller prey 4 are a problem, if you can't reach them. The solution is teamwork. Swimming in perfect formation, they flick 5 their tail in unison 6 and create a wave that cracks the ice. They regroup and access the damage.
A more powerful wave is needed. The ice float is breaking up. Now they are close enough to get a good look at their target. The seal is a crabeater , sharp to stand feisty, not their favorite. The wolves of the sea move on in search of easier quarry 7. A weddell seal. That is better. These are more docile 8 and easier to tackle. The pardon stay is close together and travels silently. This time they initiate 9 far more powerful wave and with astonishing accuracy. These big whales are not intended to break the ice, but to knock the prey into the water and they rarely fail.
n.杀人者，杀人犯，杀手，屠杀者
- Heart attacks have become Britain's No.1 killer disease.心脏病已成为英国的头号致命疾病。
- The bulk of the evidence points to him as her killer.大量证据证明是他杀死她的。
n.捕食其它动物的动物；捕食者
- The final part of this chapter was devoted to a brief summary of predator species.本章最后部分简要总结了食肉动物。
- Komodo dragon is the largest living lizard and a fearsome predator.科摩多龙是目前存在的最大蜥蜴，它是一种令人恐惧的捕食性动物。
凶手( killer的名词复数 )； 消灭…者； 致命物； 极难的事
- He remained steadfast in his determination to bring the killers to justice. 他要将杀人凶手绳之以法的决心一直没有动摇。
- They were professional killers who did in John. 杀死约翰的这些人是职业杀手。
n.被掠食者，牺牲者，掠食；v.捕食，掠夺，折磨
- Stronger animals prey on weaker ones.弱肉强食。
- The lion was hunting for its prey.狮子在寻找猎物。
n.快速的轻打，轻打声，弹开；v.轻弹，轻轻拂去，忽然摇动
- He gave a flick of the whip.他轻抽一下鞭子。
- By a flick of his whip,he drove the fly from the horse's head.他用鞭子轻抽了一下，将马头上的苍蝇驱走。
n.步调一致，行动一致
- The governments acted in unison to combat terrorism.这些国家的政府一致行动对付恐怖主义。
- My feelings are in unison with yours.我的感情与你的感情是一致的。
n.采石场；v.采石；费力地找
- Michelangelo obtained his marble from a quarry.米开朗基罗从采石场获得他的大理石。
- This mountain was the site for a quarry.这座山曾经有一个采石场。
adj.驯服的，易控制的，容易教的
- Circus monkeys are trained to be very docile and obedient.马戏团的猴子训练得服服贴贴的。
- He is a docile and well-behaved child.他是个温顺且彬彬有礼的孩子。