[求助]LSAT 1-1-18/19

birdie

请DX们赐教本题解题思路：

LSAT 1-1-18

18. Brushing your teeth regularly, no matter which toothpaste you use, will reduce your chances of tooth decay. Scientists have concluded that, when you brush, you reduce tooth decay by removing the film of plaque that forms on teeth and gums. So, you can forget about fluorides: brush your teeth carefully and say goodbye to cavities.

Which one of the following is a criticism of the reasoning in the argument?
(A) Brushing with fluoride toothpaste has been shown to reduce tooth decay.
(B) The fact that brushing will reduce tooth decay does not show that fluorides are of no value.
(C) Few people adequately remove plaque by brushing.
(D) People have plaque on their teeth most of the time.
(E) Scientists have been wrong about fluorides.

我的答案：C                           正确答案：B

我对题目的理解：
论点：刷牙可以减少tooth decay
论据：刷牙可以除去film of plaque
结论：忘记氟，每天刷牙

我对问题的理解：   应该是一道针对上文论据的削弱题

请问：
1.问题里面作为削弱题标志性词语的criticism翻成中文应该怎么理解？
2.怎么理解答案B对上文论据的削弱作用？
3.C为什么不对？

19. Some good cooks are gourmet cooks who pride themselves on always using extravagantly rich ingredients in elaborate recipes. Some good cooks can be characterized as fast-food cooks. They may use rich ingredients as long as the recipes are easy to follow and take little time. Other good cooks are health food enthusiasts, who are concerned primarily with the nutritional value of food. But even though not all good cooks are big eaters, they all enjoy preparing and serving food.

If the information in the passage is true, which one of the following CANNOT be true?
(A) Most good cooks do not use extravagantly rich ingredients.
(B) Everyone who enjoys preparing and serving food is a good cook.
(C) More good cooks who use extravagantly rich ingredients are big eaters than are good cooks who do not use such ingredients.
(D) There are fewer good cooks who enjoy serving and preparing food than there are good cooks who are big eaters.
(E) Gourmet cooks, fast-food cooks, and cooks who are health food enthusiasts are all big eaters.

我的答案：D             正确答案：D （虽然答对了，但是对于为什么是D还有点懵）

请问：
1.这是一道什么题型的题？应该采用什么样的解题思路？

[此贴子已经被作者于2003-6-10 18:33:14编辑过]

Zeros

birdie，经典的提问方式！

birdie

3X。
“雷锋叔叔式”的大牛们每天都要解答那么多问题，如果作为菜鸟的偶再不把自己的问题写得明白易懂一点，就太增加NN们的工作量了。这叫与人方便，与己方便（不知道我理解得对不对？）。

LuckiPanda

poor birdie