费费逻辑宝典63题

eyiqiong

63. 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. 

 我觉得D和E都是CANNOT be true的。请高手指点。

[此贴子已经被作者于2004-7-17 13:16:37编辑过]

robertchu

To answer this type of "CANNOT be true" question, you have to look at each of the choice and see whether it directly contradicts what's said in the passage.

E actually can be true and does not contradict the passage.  The pasasge uses "Some good cooks ... Some good cooks ... Other good cooks ...".  But this is not necessarily an exhaustive list of all kinds of good cooks.  So, it could be the case that E is true while still doesn't contradict "not all good cooks are big eaters"

D cannot be true because it directly contradicts "even though not all good cooks are big eaters, they all enjoy preparing and serving food."