请Mindfree分析一道ＬＳＡＴ题．/LSAT-0210-4-20

海海

看过Mindfree分析过的几道逻辑题，　思路清晰，　语言地道．没有令人费解的技巧（我对＂取非＂之类的技巧一直没有想通）．请Mindfree来帮我分析一下这道题.  还有我做逻辑一直是靠凭理解题干和选项来解题, 除了排除法不懂其它的技巧. 请问你是否也是这样的.  　

ＬＳＡＴ２００２年１０月section IV第２０题．　

20. Shy adolescents often devote themselves totally to a hobby to help distract them from the loneliness brought on by their shyness. Sometimes they are able to become friends with others who share their hobby. But if they lose interest in that hobby, their loneliness may be exacerbated. So developing an all-consuming hobby is not a successful strategy for overcoming adolescent loneliness.
Which one of the following assumptions does the argument depend on?
(A) Eventually, shy adolescents are going to want a wider circle of friends than is provided by their hobby.
(B) No successful strategy for overcoming adolescent loneliness ever intensifies that loneliness.
(C) Shy adolescents will lose interest in their hobbies if they do not make friends through their engagement in those hobbies.
(D) Some other strategy for overcoming adolescent loneliness is generally more successful than is developing an all-consuming hobby.
(E) Shy adolescents devote themselves to hobbies mainly because they want to make friends.

海海

Key: B

mindfree

我认为GMAT的逻辑题目大部分还是很简单的。最快的方法是凭感觉找答案然后根据逻辑关系和理解来检验。排除法我认为是要在几乎每道题目上都可以用到。是比较有效的方法。取非是做assumption, inference, conclusion等题目时要用到的。因为assumption是必要条件，所以如果assumption不成立，则原题目中德结论不成立。简单举例：A：他是电脑高手。B：那他一定会VB编程。A是premise, B是conclusion. 这里的assumption是：电脑高手一定会VB编程。如果assumption不成立，即：电脑高手不一定会VB，那么由A得不到结论B。

就此题，读完选项，只有B涉及到原文的premise和conclusion: make loneliness worse and successful strategy. 然后你可以用逻辑关系来检验。原文的逻辑关系是：exacerbate the loneliness --> not successful strategy. 你可以看到，B其实是原文逻辑关系的逆否命题，即：successful --> not exacerbate the loneliness. 所以B正确。因为两个命题等价。如果作者没有B作assumption, 那么原文的命题就不成立。

做GMAT题目，无论是逻辑，语法，还是阅读，要保持感觉。所以要尽量在考前每天都做一些题目，加强理解，提高速度。我认为你的方法没有问题，我认为逻辑80%靠理解。逻辑关系最简单，无非是A-->B。只要理解了原文中的A，B，C...逻辑不成问题。

crusaders

up! mindfree大大..

深海的小美人鱼

楼上的哥哥，说句跑题的话哦，
我听说dada在陕西话里面是father的意思。

crusaders

......
大大 就是 很大很大的牛
.....

盈盈绿茶

So    developing    an    all-consuming    hobby    is    not    a    successful    strategy    for    overcoming    adolescent    loneliness.
怯怯地说---怎莫感觉这句结论和前面的陈述没有任何关系呢？答案也是不太明白，谁能帮忙解释一下。

cranberry

文章说，由于这种办法使患者在失去兴趣时感到更孤单，所以不是一个成功的办法。条件是这种办法使患者在...更糟，结论不是成功的办法。中间欠缺的是，会使...更糟的办法不是成功的办法。

盈盈绿茶

谢谢.