zyh79

z_weining：
你好，看了你的贴子，很有感触，很赞同你做逻辑题采用的一种“有关无关”的解题方法，
我觉得对付gmat题很多要采用这种策略。
做了不少逻辑题，分析了不少逻辑机井题，我觉得gmat逻辑题有这样的一个特点：
就是有不少题型（加强，完成句子，归纳，解释，句子作用）纯逻辑思维不是很多，不像last，有很多的逻辑相似性，充分必要性和大量推理。我感觉gmat题很多在考你对相关信息的提炼和把握，五个答案中，都是ets想到的可能相关的东西，迷惑你的
所以再对付答案是，用一种有关无关的方法来判断挺不错的，快而准！
当然这要建立在对英文准确的把握上。

zyh79

对有时间的作lsat的战友们：
建议1天2个section，每4个结束后休息一天，用20天拿下上册17个section
对时间不多的作last战友：
2天2个section，每8个结束休息一天，用40天拿下上册17个section
下册，据说不是ets出的，可先不管，我也没做

zyh79

test1-section IV-25
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）

(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.
这种题确实不少，方法我没总结出来。
不过这类题目好像要求对some-all，can-must要敏感，往往是出题点。

zyh79

正确的啊，题干复杂点也这么版，始终把握all与some

zyh79

谢谢z_weining，以后只要是lsat，大家就一起上，把它搞定；
咳，连我自己都不知道为什么这么恨ets

zyh79

test2-section2-19
   How do the airlines expect to prevent commercial plane crashes? Studies have shown that pilot error contributes to two-thirds of all such crashes. To address this problem, the airlines have upgraded their training programs by increasing the hours of classroom instruction and emphasizing communication skills in the cockpit. But it is unrealistic to expect such measures to compensate for pilots’lack of actual flying time. Therefore, the airlines should rethink their training approach to reducing commercial crashes.

Which one of the following is an assumption upon which the argument depends?
(A) Training programs can eliminate pilot errors.
(B) Commercial pilots routinely undergo additional training throughout their careers.
(C) The number of airline crashes will decrease if pilot training programs focus on increasing actual flying time.
(D) Lack of actual flying time is an important contributor to pilot error in commercial plane crashes.
(E) Communication skills are not important to pilot training programs.
这题我是这样理解的:
原文说：公司进行课堂训练，但不能弥补实际训练，所要重新考虑
但课堂训练是不是重要，文章没提，也许是两个都重要，缺一不可的情况，所以c,e不对。
当然，作为加强，C、E都可，不过加强与假设不同啊

zyh79

test2-section2-11.
“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.
biologist：如果森林继续恶化，koala将消失
politivian：所以我们只需阻止森林恶化，就能防止koala消失
B:森林不恶化，koala消失
与biologist不矛盾：因为原文只说如果森林继续恶化，koala将消失
                   但没说如果森林不恶化，koala就不消失     

哦，对了，下次有可能的话，把原题也粘上来呀，可供大家看啊！

zyh79

请教一道LSAT难题
9-IV-17.
Certain items—those with that hard-to-define quality called exclusivity—have the odd property, when they become available for sale, of selling rapidly even though they are extremely expensive. In fact, trying to sell such an item fast by asking too low a price is a serious error, since it calls into question the very thing---exclusivity---that is supposed to be the item’s chief appeal. Therefore, given that a price that will prove to be right is virtually impossible for the seller to gauge in advance, the seller should make sure that any error in the initial asking price is in the direction of setting the price too high.
The argument recommends a certain pricing strategy on the grounds that
(A) this strategy lacks a counterproductive feature of the rejected alternative
(B) this strategy has all of advantages of the rejected alternative, but fewer of its disadvantages
(C) experience has proven this strategy to be superior, even though the reasons for this superiority elude analysis
(D) this strategy does not rely on prospective buyers estimates of value
(E) the error associated with this strategy, unlike the error associated with the rejected alternative, is likely to go unnoticed
这题真得用难题猜A了

zyh79

谢谢bessette和cook的精彩分析！

zyh79

7。题目不完整，漏了很多
  二段最后一句，then a holiday sale is declared
  还有三段，However,there is no holiday that falls within the month of August and ,in that month, the warehouse never contains excess merchandise.
  这样其它都推不出来了，只有D了，D从第一话就可推出来。
13。我觉得D准确
    A答案并未点中题目的核心部分。
    A答案只说治愈这些疾病比判断哪种重要，但并未反映出原文中“治愈我们会的”这一层意思。