gmat逻辑阅读并不困难如果你这样做的话

werkingwolf · 发表于 2012-7-7 22:51:14

gmat 逻辑提高的有效方法每天10题目的lsat
lsat逻辑层次比gmat高不少因为是法学考试整体严密度很高可以做为阅读材料
建议适用方法
首先读lsat逻辑原文用中文流利表达不要问我为什么坚持一个月你就知道好处了
做题目
做题目要点主要不是找逻辑结构尔是找文章的相关性很多lsat题目从逻辑入手你会发现很快崩溃
不要寻找正确的答案只排除错的把错的挑出来不要管剩下一个为什么对
然后对答案找看直接排错和文章有什么差别
不用弄懂为什么对主要找出做题目的感觉
总之多读 lsat逻辑原文能为提高阅读能力和逻辑能力提供有利的帮助

werkingwolf · 发表于 2012-7-7 22:54:14

附上上次发的一道逻辑题目大家讲讲是怎么做的吧Some people say that the scarcity of food is a function of the finite limits of the earth’s resources, coupled with a relentless rate of population growth. This analysis fails to recognize, however, that much of the world’s agricultural resources are used to feed livestock instead of people. In the United States, for example, almost one-half of the agricultural acreage is devoted to crops fed to livestock. A steer reduces twenty-one pounds of inexpensive grain to one pound of expensive meat. Thus, the scarcity of food is not merely a function of limited resources and population growth.
Which one of the following is an assumption that would allow the conclusion in the argument to be properly drawn?
(A) People prefer eating meat to eating grain.
(B) Meat is twenty-one times more expensive than grain.
(C) The limits of the earth’s agricultural resources are not finite.
(D) More than one-half of the agricultural acreage in the United States is devoted to crops fed to humans.
(E) Growing crops for human consumption on the acreage currently devoted to crops for livestock will yield more food for more people.

sunny803 · 发表于 2012-7-12 23:52:06

这题其实可以直接推断。

逻辑链：
许多农业资源都用来饲养牲畜了——食品短缺不仅仅是资源有限和人口增长造成的（即牲畜也造成了食品短缺）

牲畜本身也是食品，为什么会造成食品短缺呢？这中间的assumption必须是同一农业资源（比如同块地）出产的牲畜食品比出产的其它食物少。

A项说人们更喜欢吃肉，无关
B项说肉比谷物贵，无关
C项说农业资源不是有限的，这个和题目中的premise对着干，排除
D项说美国一半以上的地用来种农作物，也是无关选项
E正确。

hscryzer · 发表于 2012-7-19 12:03:21

是这样的没错 GMAT的阅读要说难度很简单，boldface这种基本就是送分题了主要还是阅读能力，refresh脑袋的时候还能不能保持逻辑思维能力

gmat逻辑阅读并不困难如果你这样做的话

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