A

What makes a person a scientist? Does he have ways or tools of learning that are different from those of others? The answer is “no”. It is not the tools a scientist uses but how he uses these tools that makes him a scientist. You will probably agree that knowing how to use a power is important to a carpenter. You will probably agree, too, that knowing how to investigate(调查),how to discover information, is important to everyone. The scientist, however, goes one step further, he must be sure that he has a reasonable answer to his questions and that his answer can be confirmed by other persons. He also works to fit the answers he gets to many questions into a large set of ideas about how the world works. k+s-5#u　

The scientist’s knowledge must be exact. There is no room for half right or right just half the time. He must be as nearly right as the conditions permit. What works under one set of conditions at one time must work under the same conditions at other times. If the conditions are different, any changes the scientist observes in a demonstration must be explained by the changes in the conditions. This is one reason that investigations are important in science. Albert Einstein, who developed the theory of relativity, arrived at this theory through mathematics. The accuracy of his mathematics was later tested through investigations. Einstein’s ideas were shown to be correct. A scientist uses many tools for measurements. Then the measurements are used to make mathematical calculations that may test his investigations.

51.What makes a scientist according to the passage? k+s-5#u　

A.　The tools he uses.　　　　　　 B. 　His ways of learning.

C.　　The way he uses his tools.　　 D.　The various tools he use

52.“The scientist, however, goes one step further,” the author says this to show　　 　。

A.　　　 the importance of information　　

B. the importance of thinking

C. the difference between scientists and ordinary people k+s-5#u　

D. the difference between carpenters and people with other jobs.

53. A sound scientific theory should be one that　　　 .

A. does not only work under one set of conditions at one time, but also works under the same conditions at other times

B. leaves no room for improvement

C. does not allow any change even under different conditions k+s-5#u　

D. can be used for many purposes

54. What is the main idea of the passage?

A.　 Scientists are different from ordinary people.

B.　 The theory of relativity.

C. Exactness is the core(核心)of science.

D. Exactness and way of using tools are the keys to the making of a scientist.

　 第二节：完形填空(共20小题；每小题1 分，满分20分)

A few years ago I was at an international conference with nearly 700 participants. One afternoon I_31　 a very crowded talk by a famous author. The hall filled quickly and soon there were no 　32　 　left , so many dozens of people were standing around the edges.

I saw a very elderly man, stooped(驼背的) slightly with age,　 　33　 　against the wall. I immediately got up, told those sitting beside me to　 　34　 　the place for him and made my way to him. When I offered my seat to him , he looked 　35　 　and started to refuse , but I would have 　36　 　of that. He asked me my name and thanked me deeply, and then made his 　37　 　back into my row and sat comfortably. Many people who 　38　 　our exchange turned to say what a kind thing I had done. I kept saying , “it’s nothing 　39　 . I m from Canada, it’s normal for us to help other people!” k+s-5#u　

A few minutes later, the man sitting next to the elderly man 　40　 　to leave the hall for another talk and the elderly man 　41　 　to me to return and sit beside him. 　42　 　I resisted, thinking someone else might need it more, but people sitting around him started to repeat my 　43 , asking me to come and sit! So I returned and sat beside the gentleman for the 　44　 .

when the talk was over ,the man thanked me again and 　45　 　asked if I knew who he was . I had no idea. He then looked quite delighted and 　46 　me a household name that I recognized immediately! k+s-5#u　

I was astonished to have been sitting next to him, 　47 　he was excited to think I had given up my seat for him 　48　 　knowing who he was! Again I had to tell him where I come from , and it’s the 　49　 　thing to do! I have felt more blessed to be a Canadian since that day, for seeing how easy it is to 　50 　someone and how rare it seemed to so many people.

31. A. missed　　　　　　 B. gave　　　　　 C. expected　　　　 D. attended k+s-5#u　

32. A. seats　　　　 　　　B. rooms　　　　 C. topics　　 　　　　D. rows

33. A. turning　　　　　　 B. walking　　　　 C. leaning　　　　　 　D. lying

34. A. move　　　　　　 B. spare　　　　　 C. take　　　　　 　　D. hold

35. A. glad 　　　　　　　B. satisfied　　　　 C. disappointed　　　 D. surprised

36. A. nothing　　　　　 B. none　　　 　　　C. something　　　 　　D. anything

37. A. living　　 　　　　B. fortune　　　　 　C. direction　　 　　　　D. way

38. A. witnessed　　 　　B. confirmed　　　　 C. remembered　　　　 D. experienced

39. A. easy　　 　　　　　B. popular　　　　 　　C. special　　　　 　　D. funny

40. A. agreed　　　 　　　B. refused　　　　　 　　C. chose　　 　　　　D. forgot

41. A. sent 　　　　　　B. signaled 　　　　　　C. rolled 　　　　　　D. said

42. A. At last 　　　　　B. At least　　　　　 　　C. At most 　　　　　D. At first

43. A. action 　　　　　　B. name　　　　 　　　C. dream 　　　　　　D. address k+s-5#u　

44. A. game 　　　　　　B. discussion　　　　 　C. course　　　　 　　D. talk 　

45. A. quietly 　　　　　B. loudly. 　　　　　　　C. proudly 　　　　　D. angrily 　

46. A. shared 　　　　　　B. told 　　　　　　　　C. asked 　　　　　　D. answered 　

47. A. as if 　　　　　　　B. even if 　　　　　　C. so 　　　　　　　　D .but 　

48. A. by 　　　　　　　B. without 　　　　　　　C. through 　　　　　D. after

49. A. strange 　　　　　B. secret 　　　　　　　C. normal 　　　　　　D. hard 　

50. A. help 　　　　　　　B. accept 　　　　　　　C. praise 　　　　　　D. trust 　

30.　 - Who is in the reading room? The lights are all on. k+s-5#u　

　 -　 ___________　 .

A. Nothing　　　　　　 B. None　　　　　 C;. No one　　　　　　 D. No

29.The conference has been held to discuss the effects of tourism _______ the wildlife in the area.

A.　　　 in　 B. on.　 C. at　 D. with

28. He went out without an umbrella , __________ in the rain. k+s-5#u　

A. risked being caught　　　　 B. risking being caught

C.risked to be caught　　　　 D. risking to be caught.

27. I wish I ___________ the star last night.

A. saw　　 B. were to see　 C. had seen　　 D. did see

26. This book can be of help to ________ wants to do the job.

A. who　　 B. whoever　　 C. no matter who　 D. whomever

25. She made a suggestion that the plan ______________ as soon as possible.

A. be carried out　　　　　　　　 B was carried out

C. should carry out　　　　　　　 D. would be carried out k+s-5#u　

24. - I seldom watch TV, but listen to the radio a lot .　

- ___________.

　 A. So do I　　　　　　　　　 B. Neither do I.

　　　 C. I am the same　　　　　　 D. So it is with me .