英语听力：自然百科 冰冻星球 前往地球尽头—9
时间：2018-12-26 作者：英语课 分类：自然百科2012年
英语课
Further south still, unstooped, shrouded 1 figures end the flat monotony of the Tundra 2.
This is the tree line, the first place on our journey with sufficient warmth and liquid water to enable a tree to grow。
Surviving here is so crushingly difficult that it can take hundreds of years for a seedling 3 to grow into a stunted 4 shrub 5.
But even small trees can provide / cover for a predator 6
Wolves, these in northern Canada are the largest and most powerful in the world and they are setting out to hunt
The pack is 25 strong, a sign that the prey 7 they are seeking is formidable
These bison/ are even bigger than their southern cousins and the largest land animals in North America
For generations, wolves and bison/ here have been shaped by their battles for the each other, making each the most impressive of its kind
The bison/ would not stay in long among the trees, they are not safe here
The wolves are closing in, but their chance of ambushing 8 the bison/ in the woods has passed, their prey are now in the open and group together for safety.
The wolves will need to work as a team, exact to make a kill.
They circle the herd 9, try to unsettle it and split it up
But the bison/ are / armed and dangerous, they will be safe as long as they stick together.
The wolves, up their game, hurrying the herd, a ploy to trigger a stampede and split away one of the smaller ones
1 shrouded
v.隐瞒( shroud的过去式和过去分词 )；保密
- The hills were shrouded in mist . 这些小山被笼罩在薄雾之中。
- The towers were shrouded in mist. 城楼被蒙上薄雾。 来自《简明英汉词典》
2 tundra
n.苔原，冻土地带
- The arctic tundra is at the top of the world around the North Pole.北极冻原是指北极点周边的地区，是世界最高的地方。
- There is a large amount of methane gas under the Siberian tundra.西伯利亚的冻土地带之下有大量的甲烷气体。
3 seedling
n.秧苗，树苗
- She cut down the seedling with one chop.她一刀就把小苗砍倒了。
- The seedling are coming up full and green.苗长得茁壮碧绿。
4 stunted
adj.矮小的；发育迟缓的
- the stunted lives of children deprived of education 未受教育的孩子所过的局限生活
- But the landed oligarchy had stunted the country's democratic development for generations. 但是好几代以来土地寡头的统治阻碍了这个国家民主的发展。
5 shrub
n.灌木，灌木丛
- There is a small evergreen shrub on the hillside.山腰上有一小块常绿灌木丛。
- Moving a shrub is best done in early spring.移植灌木最好是在初春的时候。
6 predator
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。
7 prey
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。