发帖请教三道FeiFei逻辑题目

timzhang57 · 发表于 2010-7-28 21:00:46

13. Top college graduates are having moredifficulty demonstrating their superiority to prospective employers than didthe top students of twenty years ago when an honors degree was distinctionenough. Today’s employers are less impressed with the honors degree. Twentyyears ago no more than 10 percent of a given class graduated with honors.Today, however, because of grade inflation, the honors degree goes to more than50 percent of a graduating class. Therefore, to restore confidence in thedegrees they award, colleges must take steps to control grade inflation.
Whichone of the following is an assumption that, if true, would support theconclusion in the passage?
(A) Today’s students are not higherachievers than the students of twenty years ago.
(B) Awarding too many honors degreescauses colleges to inflate grades.
(C) Today’s employers rely on honorsranking in making their hiring decisions.
(D) It is not easy for students withlow grades to obtain jobs.
(E) Colleges must make employersaware of the criteria used to determine who receives an honors degree.
我认为A不能成立，如果过去和现在的学生一样好，那么学校也应该控制grade inflation，因为似乎grade inflation不是同学引起

19. Some good cooks are gourmet cooks who pridethemselves on always using extravagantly rich ingredients in elaborate recipes.Some good cooks can be characterized as fast-food cooks. They may use richingredients as long as the recipes are easy to follow and take little time.Other good cooks are health food enthusiasts, who are concerned primarily withthe nutritional value of food. But even though not all good cooks are bigeaters, they all enjoy preparing and serving food.
If the information in the passage is true, which one of the following CANNOT betrue?
(A) Most good cooks do not useextravagantly rich ingredients.
(B) Everyone who enjoys preparing andserving food is a good cook.
(C) More good cooks who useextravagantly rich ingredients are big eaters than are good cooks who do notuse such ingredients.
(D) There are fewer good cooks whoenjoy serving and preparing food than there are good cooks who are big eaters.（D）
(E) Gourmet cooks, fast-food cooks,and cooks who are health food enthusiasts are all big eaters.
如果可以请各位帮我看下，除了D之外其他选项可能的情况

If city council institutes new parking regulations, city revenues will surelyincrease, since studies have conclusively shown that, if such parkingregulations are put into effect, there is an increase in parking violations,and an increase in parking violations will result in a greater number ofparking fines collected.
22. If the statements in the passage are true,which one of the following must also be true?
(A) Unless there is an increase inthe number of parking violations in the city, city revenues will not increase.
(B) If the city council institutesnew parking regulations, the council will fall from favor with the citizens.
(C) The city council will institutenew parking regulations only if an increase in city revenues can be expected toresult.
(D) If the city council’s newregulations cause more parking violators to be ticketed, the city revenues willincrease.
(E) Unless the city institutes acomplex system of parking regulations, the city cannot expect trafficviolations to increase.

感觉第一句话的逆否命题就是选项A...难道unless的位置有关系？

timzhang57 · 发表于 2010-7-28 21:05:23

答案为A D D

第一道：我认为A不能成立，如果过去和现在的学生一样好，那么学校也应该控制grade inflation
第二道：如果可以请各位帮我看下，除了D之外其他选项可能的情况
第三道：完全不能理解，感觉第一句话的逆否命题就是选项A...难道unless的位置有关系？

liberzephyr · 发表于 2010-7-29 08:41:30

正好我今天刚做了这几个提
第一原文说：现在honors degree多了，雇主不那么信任honors degree，所以学校要控制grade inflation
A 现在的学生没比以前的好，这就是原文的假设，因为有一种可能现在的学生比以前好，那么就应该有更多的honors degree，A排除了这种可能

第二提干If the information in the passage is true, which one of the following CANNOT be true？
下面哪个不能对，也就是说下面哪个一定错（多数的gmat题干是有文章能推出哪个结论）
D 跟原文说的完全相反，所以选它
B,C不能从原文得到这个结论,但是他们不一定错

第三答案A翻译一下: 除非违反交通规则的人增加了,城市的收入不可能增加
转义一下: 违反交通规则的人增加是城市收入增加的唯一可能性
多么可怕啊!!! 当是考场外的知识
A 文章没有说引起城市收入增加的其他原因，A说的太绝对

文章中说新的交规>违反交通规则>罚款增加>城市收入增加
D 把这个话复述了一次正确

timzhang57 · 发表于 2010-7-29 11:58:49

正好我今天刚做了这几个提
第一原文说：现在honors degree多了，雇主不那么信任honors degree，所以学校要控制grade inflation
A 现在的学生没比以前的好，这就是原文的假设，因为有一种可能现在的学生比以前好，那么就应该有更多的honors degree，A排除了这种可能

第二提干If the information in the passage is true, which one of the following CANNOT be true？
下面哪个不能对，也就是说下面哪个一定错（多数的gmat题干是有文章能推出哪个结论）
D 跟原文说的完全相反，所以选它
B,C不能从原文得到这个结论,但是他们不一定错

第三答案A翻译一下: 除非违反交通规则的人增加了,城市的收入不可能增加
转义一下: 违反交通规则的人增加是城市收入增加的唯一可能性
多么可怕啊!!! 当是考场外的知识
A 文章没有说引起城市收入增加的其他原因，A说的太绝对

文章中说新的交规>违反交通规则>罚款增加>城市收入增加
D 把这个话复述了一次正确

-- by 会员 liberzephyr (2010/7/29 8:41:30)

谢谢你感觉思路清楚了点特别是第一题我有点把假设题当做support题来做了谢谢！

发帖请教三道FeiFei逻辑题目

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