[转载]LSAT要考170+?这部分你不能错超过3个----LR部分题型分布与解题

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(一)strengthen the argument类
这一类题目是“条件类”题目的一种衍生题型,要求考生在题目中出现的“完整逻辑”机构外,再添加一个论断,从而加强逻辑结论的“适用性”。简单来说,这一类题目就是“你说的话是没错,可是你要怎么证明自己呢?”这样一种问法。
那么怎样做才能肯定这个论证呢?
肯定推理中的一个步骤?不行!如果步骤正确,结论错误;那么相当于全盘否定了论证!
肯定推理中的结论?正确,因为这样即使步骤错误;依然不能说推理是有误的;如果步骤正确,就绝对肯定了论证。
因此,我们选择答案这样看起来就很简单了;我们去寻找论证中的结论,肯定了结论的题目一定是正确的。
我们来看一道题:
Among people who live to the age of 100 or more, a large proportion have led “unhealthy” lives: smoking, consuming alcohol, eating fatty foods, and getting little exercise. Since such behavior often leads to shortened life span, it is likely that exceptionally long-lived people are genetically disposed to having long lives.
Which one of the following, if true, most strengthens the argument?
A There is some evidence that consuming a moderate amount of alcohol can counteract the effects of eating fatty food.
B Some of the exceptionally long-lived people who do not smoke or drink do eat fatty foods and get little exercise.
C Some of the exceptionally long-lived people who exercise regularly and avoid fatty foods do smoke or consume alcohol.
D Some people who do not live to the age of 100 also lead unhealthy lives.
E Nearly all people who live to 100 or more have siblings who are also long-lived.
我们看看这道有关于“长寿”的题目,前面给了一堆推理过程,最终得到的结论是:那些特别长寿的人往往是因为“基因”的原因。
那么我们看选项,哈哈,谈到基因的选项,只有E,也就是长寿者的兄弟姐妹也容易长寿。就这么简单。
事实上,这一类题目,由于不像逻辑条件类题目那样有紧密的逻辑联系,如果LSAC考官出的考题出现太多类似选项,可能出题者都要承认这道题模糊性太强;事实上,这一类题目一般沾边的选项就只有一个;广大考生可以放心选择。