求教lsat-1-1-4,lsat-1-1-13,lsat-1-1-18

coteki

The simple facts are these: the number of people killed each year by grizzly bears is about the same as the number of people killed by lightning on golf courses. And the number of people killed by lightning on golf courses each year is about the same as the number of people electrocuted by electric blenders. All the horrible myths and gruesome stories aside, therefore, a grizzly bear is in fact about as dangerous as an electric blender or a game of golf.

4.     Which one of the following, if true, would most effectively undermine the author’s argument?

(A) Although the number of people killed by lightning on golf courses each year is very small, the total number of lightning fatalities is many times greater.

(B) Electric blenders are among the safest household appliances; were the author to compare fatalities from electrical appliances in general, she would get a much higher figure.

(C) Most people would rather take their chances with blenders and golf games than with grizzly bears.

(D) Bears in general—including black, brown, and cinnamon bears, as well as grizzly bears—kill many more people than do electric blenders.（E）

(E) Statistics show that the number of times people use electric blenders each year exceeds the number of times people play golf each year, which in turn far exceeds the number of contacts people have with grizzly bears each year.

这c和e不是差不多意思吗为什么不选c?

13.   Top college graduates are having more difficulty demonstrating their superiority to prospective employers than did the top students of twenty years ago when an honors degree was distinction enough. Today’s employers are less impressed with the honors degree. Twenty years 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 than 50 percent of a graduating class. Therefore, to restore confidence in the degrees they award, colleges must take steps to control grade inflation.

Which one of the following is an assumption that, if true, would support the conclusion in the passage?

(A) Today’s students are not higher achievers than the students of twenty years ago.

(B) Awarding too many honors degrees causes colleges to inflate grades.

(C) Today’s employers rely on honors ranking in making their hiring decisions.

(D) It is not easy for students with low grades to obtain jobs.（A）

(E) Colleges must make employers aware of the criteria used to determine who receives an honors degree.

why A?

14.   Either Perry’s faction or Tucker’s faction, but not both, will win control of the government. If Perry’s faction wins, the nation will suffer economically. If Tucker’s faction wins, the nation will suffer militarily.

Given the statements in the passage, which one of the following statements must be true?

(A) It is possible, but not certain, that the nation will neither suffer economically nor suffer militarily.

(B) If the nation suffers economically, it is certain that Perry’s faction has won control of the government.

(C) It is certain that the nation will suffer either economically or militarily, and also certain that it will not suffer both.

(D) If the nation suffers militarily, it is possible, but not certain, that Tucker’s faction has won control of the government.（D）

(E) If the nation suffers both economically and militarily, it is certain that neither Perry’s faction nor Tucker’s has won control of the government.

给我讲讲推理的思路好吗

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.（B）

(E) Scientists have been wrong about fluorides.

what about A?

iceboy

楼主你查找一下吧, 在WEIYU的置顶中间应该都有.

还有, 一次不要贴这么多在一起. 难回答.

lawyer_1

Too many questions. It would be better if you separate them

4.C 无关。原文结论是：BEAR和其他东东一样危险。C说人们愿意冒险。

E正确：原文证据是三样东东造成的死亡人数差不多。E说人们接触三样东东次数不一样。当然危险性就不同

13。原文推理为：过去10P的学生得Honour，现在却有50P。所以分数膨胀了。

   如果现在的学生确实比以前优秀，那末就不见得分数膨胀。A排出这种可能。

14。不久前已解释过。关键理解原文的either...or 和 if ...then。

      原文的逻辑为

                         P和T有且只有一个控制政府

                         P控制，则必有经济问题（可能同时有军事问题），T则必有军事问题（可能同时有经济问题）。逆命题不成立（由经济或军事问题推不出谁必控制政府）

     所以D正确（T改为P也一样正确）

18。原文没说带F的牙膏可减少TOOTH DECAY。证据中一点都没提F

[此贴子已经被作者于2004-7-6 0:03:42编辑过]

iceboy

lawyer师兄真的是厉害的说. PF.