英语听力：自然百科 走进西藏 tibet—13

 In such a frugal¹ environment, the Pika's farming helps to kickstart the food chain. But the Pika itself is a very tasty morsel². Its presence has enabled an uneasy relationship to develop between the two plateau most opportunistic predators³, the fox and the bear. 

 

The Tibetan brown bear, a close relative of the grizzly⁴, trys to dig the Pikas out from their burrows⁵, even hard, frozen soil presents little obstacle to a determined⁶ bear. The wily Tibetan fox is quick to spot any opputunity. True to form, the crafty⁷ fox claims the prize. 

 

A combination of inaccessabily and ancient traditions, which forbid hunting, means that in some parts of the plateau, wild aninals have remained relatively⁸ undisturbed, even today.

 

But in those areas which are within reach of motor vehicles, these historical safeguards have been undermined. 

 

These changes is illustrated⁹ in the fortunes of the chiru. A century ago, millions migrated cross the plateau. Unfortunately, for the chiru, its fur, knowm as shartoosh ,or  King of wools,  is highly prized . In recent decades, purchase are being able to adventure deep into the wildness killing¹⁰ thousands of chiru. however, the situation is improving, anti-poaching laws are now actively¹¹ enforced, so every summer female chiru can head to the birthing grounds in relative safety.

1 frugal   

adj.节俭的，节约的，少量的，微量的

参考例句：

• He was a VIP,but he had a frugal life.他是位要人，但生活俭朴。
• The old woman is frugal to the extreme.那老妇人节约到了极点。

2 morsel   

n.一口，一点点

参考例句：

• He refused to touch a morsel of the food they had brought.他们拿来的东西他一口也不吃。
• The patient has not had a morsel of food since the morning.从早上起病人一直没有进食。

3 predators   

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》

4 grizzly   

adj.略为灰色的，呈灰色的；n.灰色大熊

参考例句：

• This grizzly liked people.这只灰熊却喜欢人。
• Grizzly bears are not generally social creatures.一般说来，灰熊不是社交型动物。

5 burrows   

n.地洞( burrow的名词复数 )v.挖掘（洞穴），挖洞( burrow的第三人称单数 )；翻寻

参考例句：

• The intertidal beach unit contains some organism burrows. 潮间海滩单元含有一些生物潜穴。 来自辞典例句
• A mole burrows its way through the ground. 鼹鼠会在地下钻洞前进。 来自辞典例句

6 determined   

adj.坚定的；有决心的

参考例句：

• I have determined on going to Tibet after graduation.我已决定毕业后去西藏。
• He determined to view the rooms behind the office.他决定查看一下办公室后面的房间。

7 crafty   

adj.狡猾的，诡诈的

参考例句：

• He admired the old man for his crafty plan.他敬佩老者的神机妙算。
• He was an accomplished politician and a crafty autocrat.他是个有造诣的政治家，也是个狡黠的独裁者。

8 relatively   

adv.比较...地，相对地

参考例句：

• The rabbit is a relatively recent introduction in Australia.兔子是相对较新引入澳大利亚的物种。
• The operation was relatively painless.手术相对来说不痛。

9 illustrated   

adj. 有插图的，列举的 动词illustrate的过去式和过去分词

参考例句：

• His lecture was illustrated with slides taken during the expedition. 他在讲演中使用了探险时拍摄到的幻灯片。
• The manufacturing Methods: Will be illustrated in the next chapter. 制作方法将在下一章说明。

10 killing   

n.巨额利润；突然赚大钱，发大财

参考例句：

• Investors are set to make a killing from the sell-off.投资者准备清仓以便大赚一笔。
• Last week my brother made a killing on Wall Street.上个周我兄弟在华尔街赚了一大笔。

11 actively   

adv.积极地，勤奋地

参考例句：

• During this period all the students were actively participating.在这节课中所有的学生都积极参加。
• We are actively intervening to settle a quarrel.我们正在积极调解争执。