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标题: prep2-87 [打印本页]

作者: alanis_liu 时间: 2009-9-21 10:16
标题: prep2-87

87. (32621-!-item-!-188;#058&007099)

Wolves
generally avoid human settlements. For
this reason, domestic sheep, though essentially easy prey for wolves, are not
usually attacked by them. In Hylantia prior
to 1910, farmers nevertheless lost considerable numbers of sheep to wolves each
year. Attributing this to the large
number of wolves, in 1910 the government began offering rewards to hunters for
killing wolves. From 1910 to 1915, large
numbers of wolves were killed. Yet wolf
attacks on sheep increased significantly.

Which
of the following, if true, most helps to explain the increase in wolf attacks
on sheep?

A.
Populations of deer and other wild animals that wolves typically prey on
increased significantly in numbers from 1910 to 1915.

B.
Prior to 1910, there were no legal restrictions in Hylantia on the hunting of
wolves.

C.
After 1910 hunters shot and wounded a substantial number of wolves, thereby
greatly diminishing these wolves' ability to prey on wild animals.

D.
Domestic sheep are significantly less able than most wild animals to defend
themselves against wolf attacks.

E.
The systematic hunting of wolves encouraged by the program drove many wolves in
Hylantia to migrate to remote mountain areas uninhabited by humans.

答案是C，我不是很明白，为什么狼丧失了捕捉野物的能力结果会增加对羊的攻击？

作者: 愁予 时间: 2009-9-21 14:29
很明显的逻辑，因为domestic sheep是easy prey,wild animals捉不到了自然就只能欺负小羊了。

作者: yidiyuehan 时间: 2009-9-21 18:06

我觉得解释conflict 题时候要找出导致这种conflict 的原因,

文中的conflict 是虽然羊很容易被捕捉，之前却只有很少量被狼袭击，在政府大家鼓励猎人捕狼后，狼的数量减少了，反而更多的羊被袭击了。（conflict: 狼数量减少，相应的羊被袭击的量也应该减少.）

为何反而多了呢，就是狼袭击的多了，所以要找出一个狼为何袭击羊多了的原因，就是C 了.

作者: alanis_liu 时间: 2009-9-22 02:05
没有注意到easy prey，谢谢各位！

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