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The importance of the ozone layer to terrestrial animals is that it entirely filters out some wavelengths of light but lets others through. Holes in the ozone layer and the dangers associated with these holes are well documented. However, one danger that has not been given sufficient attention is that these holes could lead to severe eye damage for animals of many species.

Which one of the following is most strongly supported by the statements above, if they are true?

正确答案: E

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关于逻辑中数量范围的问题

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发表于 2004-9-19 00:00:00 | 显示全部楼层

关于逻辑中数量范围的问题

数量的范围是逻辑题常考,特别是MUST BE问题,混淆答案也常来于此。下面一题是LSAT,先讨论,后再公布答案及解释。(VALARIE说得对,纪念完了,我们要更加努力去学习)

The importance of the ozone layer to terrestrial animals is that it entirely filters out some wavelengths of light but lets others through. Holes in the ozone layer and the dangers associated with these holes are well documented. However, one danger that has not been given sufficient attention is that these holes could lead to severe eye damage for animals of many species.

Which one of the following is most strongly supported by the statements above, if they are true.

A). All wavelengths of sunlight that can cause eye damage are filtered out by the ozone layer where it is intact.

B). Few species of animals live on a part of the earth's surface that is not threatened by holes in the ozone layer

C). Some species of animals have eyes that will not suffer any damage when exposed to unfiltered sunlight

D). A single wavelength of sunlight can cause severe damage to the eyes of most species of animals

E). Some wavelengths of sunlight that cause eye damage are more likely to reach the earth's surface where there are holes in the ozone layer than where there are not,  

[此贴子已经被作者于2005-2-22 10:07:53编辑过]
发表于 2004-9-19 00:07:00 | 显示全部楼层
B
发表于 2004-9-19 00:38:00 | 显示全部楼层
e
 楼主| 发表于 2004-9-19 19:23:00 | 显示全部楼层
大家对这个问题不感兴趣。顶一下
发表于 2004-9-19 19:46:00 | 显示全部楼层

选e。b中“Few species of animals live on a part of the earth's surface that is not threatened by holes in the ozone layer”太绝对了。

发表于 2004-9-20 01:20:00 | 显示全部楼层
E
发表于 2004-9-20 05:07:00 | 显示全部楼层
这个题目对我来说太难, 偶就是GMAT-OG水平, 就不费力气找答案了.. 等着答案出来偷艺
发表于 2004-9-20 06:40:00 | 显示全部楼层
e,
发表于 2004-9-20 09:16:00 | 显示全部楼层

lawer又来出题考偶们了;

偶也选E;

A中的all wavelengths 错;

B中信息推不出,举个例子,原文说对许多动物造成严重伤害,(对其它动物造成轻微伤害。)B便错误。

C中的信息suffer any damage错,原文说的是severe eye damage ,这里的not suffer any damage推不出。

D中的错误比较模糊。个人认为D说most species of animals有问题,原文说的是many species animals。

 楼主| 发表于 2004-9-20 11:13:00 | 显示全部楼层
to leeon,l“awer又来出题考偶们了”。别这末说,我无意考谁,只是偶尔看到这个题,里面都是SOME,ALL,FEW。是个不错的关于数量范围的好题。所以拿出来,不敢独享。请别误解。
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