英语听力：2012-02-12 从南极到北极 From Pole To Pole—12
时间：2019-01-23 作者：英语课 分类：探索与发现2012年
英语课
The strike of a great white shark lasts a mere 1 second. Slowing it down forty times reveals the technique and immense strength of this massive predator 2.
If surprise fails, there will be a chase. The shark is faster on a straight course, but it can’t turn as sharply as a seal. It’s agility 3 versus 4 power.
Once the seals have finished breeding, the giant sharks will move on. It’s now becoming clear that great whites migrate thousands of miles across the oceans to harvest seasonal 5 abundances in different seas.
adj.纯粹的；仅仅，只不过
- That is a mere repetition of what you said before.那不过是重复了你以前讲的话。
- It's a mere waste of time waiting any longer.再等下去纯粹是浪费时间。
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。
n.敏捷，活泼
- The boy came upstairs with agility.那男孩敏捷地走上楼来。
- His intellect and mental agility have never been in doubt.他的才智和机敏从未受到怀疑。
prep.以…为对手，对；与…相比之下
- The big match tonight is England versus Spain.今晚的大赛是英格兰对西班牙。
- The most exciting game was Harvard versus Yale.最富紧张刺激的球赛是哈佛队对耶鲁队。