lsat1 cr2 25

qierliu · 发表于 2003-11-27 12:02:00

25. All of the best comedians have had unhappy childhoods. Yet, many people who have had happy childhoods are good comedians, and some good comedians who have had miserably unhappy childhoods are happy adults.

If the statements in the passage are true, which one of the following CANNOT be true?

(A) The proportion of good comedians who had unhappy childhoods is greater than the proportion of the best comedians who did.

(B) Some good comedians have had unhappy childhoods and are unhappy adults.

(C) Most of the best comedians are happy adults.

(D) More good comedians have had unhappy childhoods than have had happy childhoods.

(E) The proportion of comedians who are happy adults is higher than the proportion who are unhappy adults.

E对吗？哪里可以看出

谢谢1

云淡风轻 · 发表于 2003-11-27 13:20:00

这道题问的是“cannot be true”，也就是要你选出一定不对的选项。
E是说“是幸福成年人的喜剧演员的比例高于悲惨成年人的喜剧演员”。而提干当中只提到“有一些童年悲惨的喜剧演员是幸福的成年人”，其他没对“幸福成年人”再加以说明，也就说明E的结论是有可能成立的。
而此题的正确答案A说“有悲惨童年的好喜剧演员的比例比有悲惨童年的最好喜剧演员高”，就一定不成立，因为题干已经说“所有的最好喜剧演员的童年都悲惨”，即有悲惨童年的最好喜剧演员比例为100%，而题干又说“很多有幸福童年的人成为了好喜剧演员”，即有悲惨童年的好喜剧演员的比例<100%，这正好跟A的结论相反，所以A"cannot be true"。

lsat1 cr2 25

lsat1 cr2 25

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