是GRE真题
A) It relies on the same source that Jane cited in support of her conclusiion

C) It does not adress the mian point of Jane's argument and focuses instead on a side issue
D) It makes an irrelevant appeal to an authority
E) It fails to distingusih the consequences of a certian practice from the causes of the practice

个人觉得:这些答案看上去更不像.
B)的错误是不是在于RUBBISH! 这句话?

把它们放在一起,利于日后整理方便：
Jane: according to an article in this newsmagazine, children’s hand-eye coordination suffers when they spend a great amount of time watching television. therefore, we must restrict the amount of time jacqueline and mildred are allowed to watch television.
Alan: rubbish! the article says that only children under three are affected in that way. jacqueline is ten and mildred is eight. therefore, we need not restrict their television viewing.

Alan’s argument against Jane’s conclusion makes which one of the following errors in
reasoning?
(A) it relies on the same source that jane cited in support of her conclusion.
(B) it confuses undermining an argument in support of a given conclusion with showing that the conclusion itself is false.
(C) it does not address the main point of jane’s argument and focuses instead on a side issue.
(D) it makes an irrelevant appeals to an authority.
(E) it fails to distinguish the consequences of a certain practice from the causes of the practice.

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本题推理错误在于由 A => B 直接推出了 -A => -B
A: hand-eye coordination suffers
B: restrict the amount of TV time

否定原来论据可以，但并不导致原来结论自动实效。可以吗？

B)的错误是不是在于RUBBISH! 这句话?

可以这么说。因为Alan认为Jane的结论错仅仅因为Jane使用的论据有问题是不充分的。你

可以这么类比：

A：书上说苹果有助于健康，所以我应该多吃苹果。
B：书上只说青苹果有助于健康，所以你没必要多吃苹果。

明显，B的说法同Alan一样，忽视了有其他原因使A（Jane）的结论正确的可能性。所以逻

辑上不严密。

做这类题就要用dorbear的方法，找出原文的论据和论点，然后看答案是什么结构（A,B,A

-, B-等）再看有什么逻辑问题。做多了以后有了感觉就不用再在纸面上推了。：）

btw，你好像快看完大砖头了？

谢谢分解

这到题是CHEN XIANG DONG书上的, 我本还以为是GRE的真题呢

这是LSAT的真题。Jane引用的论据(an article in this newmagazine)错误并不必然

说明她的结论(we must restrict the amount of time J and M are allowed to watch

TV)错误。