chexplorina

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.
想了半天，还是觉得Alan的反驳没错，请大侠指教

leaf

问各位G友一个小问题

这里讨论很是热烈啊，不好意思要问一个菜鸟的问题了
还有一个多月就要去杀鸡了，复习了一段时间，觉得逻辑实在是狂难，倍受打击！
请问哪儿友买LAST的两册黄皮书？真的很有用吗？准备啃啃那里面的逻辑，虽然时间已不多，不管怎样要奋战到底呢

Jean

斑竹同志，我想提一个请求。可不可以将此专刊每个星期整理一下，以文本格式可以下载下来。里面标注题目和针对此题的所有讨论。这样我们后来者就不会看得那么辛苦了。

zyh79

lsat13－－2CR--19:
J：A==>B,
A：非A==>非B。
alan犯的逻辑错误在于：
否定了论证中的论据并不意味着该论据推导的结论一定也是错的。选B

mingja

I think the answer is A.

From Stem, If D, then E (biologist)


From A: Deforestation continues and the koala becomes extinct
i.e. If D, then E

From Stem: Politician:  if ~D, then ~E which is closer to

(C) Reforestation begins and the koala survives.
(D) Deforestation is slowed and the koala survives. (if S,then ~E;assuming S=~D)

Whereas
B and D is not mentioned in the stem:

(B) Deforestation is stopped and the koala becomes extinct.
If ~D,then E
(D) Deforestation is slowed and the koala survives.

If S, then E

Even if S is eqivalent to ~D, If ~D, then E is still not consistent with the biologist

christinecc

Test 2 section II
11. “If the forest continues to disappear at its present pace, the koala will approach extinction,” said the biologist.
“So all that is needed to save the koala is to stop deforestation,” said the politician.
Which one of the following statements is consistent with the biologist’s claim but not with the politician’s claim?
(A) Deforestation continues and the koala becomes extinct.
(B) Deforestation is stopped and the koala becomes extinct.
(C) Reforestation begins and the koala survives.
(D) Deforestation is slowed and the koala survives.
(E) Deforestation is slowed and the koala approaches extinction.
我选D,但答案是B，想不明白？

rhou88

请问哪里可以下载到LAST题？ 我看到论坛中说17个sections.但是我找不到这些题。

stsww

the choice of A compares the proportion the two kinds of comedians. According to the passage, the proportion of the best comedians who had unhappy childhood is 1 because all of the best guys have had unhappy childhoods. So choice of A is right.

阿狼

我想问一下大家，关于LSAT的做题时间和批改时间的比例如何确定为好？我总觉得不论是做GMAT还是做LSAT，批改的时间远较做题时间为多。浪费啊浪费。大家的时间是怎么安排的呢？

zyh79

阿狼：我觉得逻辑提高过程很重要的一点就在于做完后的总结，将错题弄懂，磨刀不误砍材工啊
另外，电子版的LSAT在本站就有下载，LSAT上册17套，做完后在逻辑和阅读两方面都会有很大的提高，我会在近期将LSAT已讨论的题做一系统整理，谢谢大家！