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Thirty- two people watched Kitty' Genovese being killed right beneath their windows. She was their neighbor. Yet none of them helped her. Not one even called the police. Was this gunman cruelty? Was it lack of feeling about one' s fellow man?

"Not so," say scientists John Barley and Bib Fatane. These men went beyond the headlines to probe the masons why people didn't act. They found that a person has to go through two steps before he can help. First he has to notice that is an emergency. Suppose you see a middle - aged man fall to the side - walk. Is he having a heart attack? Is he in a coma (昏迷) from diabetes(糖尿病) ? Or is he about to sleep off a drunk? Is the smoke coming into the room from a leak in the air conditioning? Is it "steam pipes" ? Or is it really smoke from a fire? It' s not always easy to tell if you are faced with a real emergency.

Second, and more important, the person faced with an emergency must feel personally responsible. He must feel that he must help, or the person won' t get the help he needs. The researchers found that a lot depends on how many people are around. They had college students in to be "tested". Some came alone. Some came with one or two others. And some came in large groups. The receptionist started them off on the "tests". Then she went into the next room. A curtain divided the "testing room" and the room into which she went. Soon the students heard a scream, the noise of file cabinets falling and a cry for help. All of these had been pre - recorded on a tape - recorder. Eight out of ten of the students taking the test alone acted to help. Of the students in pairs, only two out of ten helped. Of the students in groups, none helped.

In other words, in a group, Americans often fail to act. They feel that others will act. They, themselves, needn't. They do not feel any direct responsibility. Are people bothered by situations where people are in trouble? Yes. Scientists found that the people were emotional, they sweated, they had trembling hands. They felt the other person's trouble. But they did not act. They were in a group. Their actions, were shaped by the actions of those they were with.

31. The purpose of this passage is______.

Part B

52. Directions:

Title: Why do People Like to Try Their Luck on Lottery?

1.现在不少人热衷于买彩。

You should write about 160 -200 words neatly on ANSWER SHEET II. (20 points)

Part A

51. Directions:

You have just received a letter from a company, which replied your application for a job and asked you to go to the interview on August 30. Please write a reply which is about 100 words on ANSWER SHEET II. Do not sign your own name at the end of the letter. You do not need to write the address. ( 10 points)

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Part C

Directions: Read then following text carefully and then translate the underlined segments into Chinese. Your translation should be written clearly on ANSWER SHEET Ⅱ. ( 10 points)

Laws of nature are of two basic forms: (1) a law is Universal if it states that some conditions, so far as are known, in- variably are found together with certain other conditions; and (2) a law is probabilistic if it affirms that, on the average, a stated fraction of cases displaying a given condition will display a certain other condition as well. In either case, a law may be valid even though it obtains only under special circumstances or as a convenient approximation.

46)Moreover, a law of nature has no logical necessity; rather, it rests directly or indirectly upon the evidence of experience. Laws of universal form. must be distinguished from generalizations, such as "All chairs in this office are gray," which appear to be accidental. Generalizations, for example, cannot support counterfactual conditional statements such as "If this chair had been in my office, it would be gray" nor subjunctive conditionals such as "If this chair were put in my office, it would be gray." On the other hand, the statement "All planetary objects move in nearly elliptical paths about their star" does provide this support. All scientific laws appear to give similar results.

47)The class of universal statements that can be candidates for the status of laws, however, is determined at any time in history, by the theories of science current then.

Several positive attributes are commonly required of a natural law. Statements about things or events limited to one location or one date cannot be lawlike. Also, most scientists hold that the predicate must apply to evidence not used in deft- ring the law: though the law is founded upon experience, it must predict or help one to understand matters not included among these experiences. Finally, it is normally expected that o law will be explainable by more embracing laws or by some theory.

48)Thus t a regularity for which there are general theoretical grounds for expecting it will be more readily called a natural law than an empirical regularity that cannot be subsumed under more general laws or theories.

 Universal laws are of several types. 49)Many assert a dependence between varying quantities measuring certain properties, as in the law that the pressure of a gas under steady temperature is inversely proportional to its volnme.

Others state that events occur in an invariant order, as in "Vertebrates always occur in the fossil record after the rise of invertebrates." Lastly, there are laws affirming that if an object is of a stated sort it will have certain observable properties. 50)Part of the reason for the ambiguity of the term law of nature lies in the temptation to apply the term only to statements of one of these sorts of laws, as in the claim that science deals solely with cause and effect relationships, when in fact all three kinds are equally valid.

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40. Which of the following is NOT tree?