LSAT 18-2-22 问题的理解。

siebel

22. George: The economics taught in college is very confusing-and that's because it's all wrong. Harold: If it's all wrong, why is college economics still force-fed to students?
George: It's very difficult to learn something that's all wrong, and if, by chance, someone does waste all that time and learn it, he or she will be inclined to defend it ferociously and pass it on to others.

Which one of the following, if true, would most directly challenge George's reasoning?

(A) Many college graduates who have taken economics go on to successful careers in a variety of other fields.
(B) College students who major in economics tend to earn higher grades in economics than in their other subjects.
(C) "Right" and "wrong" are relative terms in the field of economics.
(D) Many economics professors agree with journal articles that strongly criticize college economics.
(E) Interviews five years after graduation show that economics majors are just as likely to say that their college experience was enjoyable as are those who did not major in economics.

would most directly challenge George's reasoning? 是说要削弱什么？削弱逻辑推理过程，还是论据论证随便削弱哪个都行？

答案D。困惑：1诉诸权威 2即便诉诸权威，也是一个加强呀，怎么就challenge乐呢？challenge了什么呢？谢谢！

albert

原文：someone does waste all that time and learn it, he or she will be inclined to defend it ferociously and pass it on to others
而D说很多教授批评学校里的经济学,不正是否定了原文要吗？
所以D并不是诉诸权威

siebel

谢谢，albert!

而D说很多教授批评学校里的经济学,不正是否定了原文要吗？

however, 这个教授，如果是college的也许可以make sense。但题目中并没提到教授是或者不是college的。而经济学课程不好，则专指college。范围模糊，不能削弱吧。

albert

呵呵。。有道理。。但是根据排除法，这个最象了。。所以，也就默认了题目讨论的都是在COLLEGE这个范围内。。

mindfree

challenge的是:someone does waste all that time and learn it, he or she will be inclined to defend it ferociously and pass it on to others

要知道在美国教书的一般都是Ph.D.毕业当助教,associate professor然后是professor一来的.所以professor都是someone does waste all that time and learn it. 如果这些教授没有defend it,就反驳了原文的话. 所以是D.

professor指大学教授.

CasualWalk

以下是引用siebel在2003-5-22 10:56:00的发言：
谢谢，albert!



however, 这个教授，如果是college的也许可以make sense。但题目中并没提到教授是或者不是college的。而经济学课程不好，则专指college。范围模糊，不能削弱吧。

補充一點﹐在這裡college是泛指所有的大學。不是某一個大學﹐或與university不
同的college。所以college課在這裡並不是專指某一學校的。

siebel

明白了！谢谢albert, mindfree, CasualWalk!

看来问题就出在
1 professor就是someone does waste all that time and learn it中的someone。欧还以为他们是权威勒。
2 这个college是泛指的高等学府。同样，另一题目中college graduates也应该是接受高等教育的人的含义。

谢谢！