D
It is hard to predict（预言）how science is going to turn out, and whether it is really good science, it is impossible to predict．If the things to be found are actually new, they must be unknown in advance．You cannot make choices on this matter．You either have science or you don’t and if you have it you have to accept the surprising and disturbing pieces of information, along with the neat and useful bits．
The only solid piece of scientific truth about which I feel totally confident is that we don’t know enough about nature．Indeed, I regard this as the major discovery of the past hundred years of biology．It is, in its way, a clear piece of news．It would have amazed the brightest minds of the 18th century to be told by any of us how little we know and how strange the way ahead seems．In earlier times, they either pretended to understand how things worked or simply made up stories to give answers．Now that we have begun exploring seriously, we are catching sight of how huge the questions are, and how far from being answered．Because of this, we are sorry．It is not so bad being ignorant（无知的）if you are totally ignorant; the hard thing is knowing in some details the reality of ignorance, the worst spots and here and there the not so bad spots, but no true light at the end of the tunnel nor even any tunnels that can yet be trusted．
But we are making a beginning, and there ought to be some satisfaction．There are probably no questions we can think up that can’t be answered, sooner or later．Within our limits, we should be able to work our way through to all our answers, if we keep at it long enough, and pay attention．
51．Acoording to the writer, really good science________．
A．would surprise the brightest minds of the 18th  century．
B．will help people to make the right choice in advance
C．will produce results which cannot be predicted
D．will bring about disturbing results
52．It can be inferred from the passage that scientists of the 18th century________．
A．thought that they knew a great deal and could deal with most problems of science．
B．knew that they were ignorant and wanted to know more about nature
C．were afraid of facing up to the realities of scientific research
D．did more harm than good in man’s understanding of nature
53．Which of the following is NOT mentioned about scientists in earlier times?
A．They falsely declared to know all about nature．
B．They did not believe in results from scientific observation．
C．They paid little attention to the problems they didn’t understand．
D．They invented false rules to explain things they didn’t understand．
54．What is the writer’s attitude towards science?
A．He is sorry because of the ignorance of scientists．
B．He is delighted because of the latest scientific findings．
C．He is doubtful because of the great difficulties in scientific research．
D．He is confident though he knows well the great difficulties in scientific research．
55．The writer believes that sooner or later________．
A．man can’t deal with all the problems he can find because of the limits of human knowledge．
B．man can find solutions to whatever questions concerning nature he can think up
C．questions concerning nature are outsiede the field of scientific research
D．man can think up all the questions and answer them all．

If you are planning to study in the United States, you need to consider several factors. Everyone has different opinions about where is the best place to live in. Also, the best places to live are not always home to the best schools. Finally, many schools specialize in different areas of study. The Massachusetts Institute of Technology, for example, is a great school for computer science and technology-related fields of study. However, if you want to study oceanography（海洋学）, your interests may be better served by attending school in a place that is on a coastline or near the ocean.
Now I am sure that you know which schools are considered the best in the country. So I will tell you about which states I believe are the best to live in.
California is a nice state. Northern California specifically has very good weather. Los Angeles in Southern California is another story though. Life in Los Angeles is full of excitement and fast, and sometimes dangerous. As for me, I enjoy the time I spent in Massachusetts, Virginia and Maryland and these states have a lot of history and culture. The weather is not as perfect as California, but it is still quite nice. My favorite area of America is the Mid-west. Middle America, I think, is home to the true American sense of values. In addition, there are many good universities there.
Also, you need to think about your likes and dislikes and then research the various states. You like sunshine and hate snow? Then you probably won’t like the Midwest or even the Northeast. Open space, nature and peace and quiet? Then you probably should stay away from America’s large cities. Are you interested in government? Then Washington D.C. is the only place for you. Whatever you decide, put some thought into it. The place you live could be the difference between a great study-abroad experience and a state of great suffering on earth.
【小题1】From the first paragraph we can conclude （得出结论）that in the USA _______.

If you are planning to study in the United States, you need to consider several factors. Everyone has different opinions about where is the best place to live in. Also, the best places to live are not always home to the best schools. Finally, many schools specialize in different areas of study. The Massachusetts Institute of Technology, for example, is a great school for computer science and technology-related fields of study. However, if you want to study oceanography（海洋学）, your interests may be better served by attending school in a place that is on a coastline or near the ocean.

Now I am sure that you know which schools are considered the best in the country. So I will tell you about which states I believe are the best to live in.

California is a nice state. Northern California specifically has very good weather. Los Angeles in Southern California is another story though. Life in Los Angeles is full of excitement and fast, and sometimes dangerous. As for me, I enjoy the time I spent in Massachusetts, Virginia and Maryland and these states have a lot of history and culture. The weather is not as perfect as California, but it is still quite nice. My favorite area of America is the Mid-west. Middle America, I think, is home to the true American sense of values. In addition, there are many good universities there.

Also, you need to think about your likes and dislikes and then research the various states. You like sunshine and hate snow? Then you probably won't like the Midwest or even the Northeast. Open space, nature and peace and quiet? Then you probably should stay away from America's large cities. Are you interested in government? Then Washington D.C. is the only place for you. Whatever you decide, put some thought into it. The place you live could be the difference between a great study-abroad experience and a state of great suffering on earth.

1.From the first paragraph we can conclude （得出结论）that in the USA _______.

2.What should be considered first if you want to study in the USA?

3.From the third paragraph we can find that _______.

4.If you study in Middle America, you can probably _______.

5. From the last paragraph of this passage we can get to know that _______.

A person may have an idea about himself that will prevent him from doing good work. He may have the belief that he is not capable of it. A child may think he is 　1 because he doesn’t understand how to make the 　2 of his mental faculties (才能). Older people may be mistaken that they are incapable of learning things new because of their　 3　 　.

A person who believes that he is incapable will not make a real 　 4 because he feels that it would be useless. He won’t go at a job with the confidence necessary for 　 5 , and he won’t work his hardest way, even though he may think he is doing so. He is 　 6　 likely to fail, and the failure will 　 7　 his belief in his incompetence (无能).

Alfred Alder, a famous doctor, had 　 8　 　like this . When he was a small boy, he had a poor　 9　 in maths. His teacher told his parents he had no ability in maths in order that they would not　 10　 too much of him. In his way, they two 　 11 　the idea. He accepted　 12 mistaken thinking of his ability, felt that it was useless 　 13　 and was very poor at maths, 　14　 as they expected.

One day he worked at a problem which 15 of the other students had been able to solve.

Alder 　16 in solving the problem. This gave him confidence. He now 　17 with interest, determination and purpose, and he soon became especially good at maths. He not only 18 that he could learn maths well, but luckily he learnt 　 19 in his life from his own experience that if a person goes at a job with determination and purpose, he may　 20 himself as well as others by his ability.

1.         A. clever　　　　 　 B. shy　　　　　 C. useless　　　 D. stupid

2.         A. biggest　　　 B. most　　　　　　 C. highest　　　 D. deepest

3.         A. ability　　　 　 B. age　　　　　 C. brain　　　　　　 D. knowledge

4.         A. decision　　　　 B. success　　　 C. effort 　　　　　 D. trouble

5.         A. work　　　　　　 B. study　　　　　　 C. improvement　　　 D. success

6.         A. truly　　　　　　 B. really　　　　　 C. however　　　 D. therefore

7.         A. lead to　　　 　 B. strengthen　　 　 C. increase　　　　 D. add to

8.         A. an experience 　 B. an example　　　 C. a thought　　　　 D. a story

9.         A. state　　　　　　 B. mind　　　　　　 C. start　 　　　　　 D. ending

10.     A. blame　　　　 　 B. expect 　　　　　 C. get　　　　　 D. win

11.     A. developed 　　　 B. organized　　　　 C. discovered　　　 D. found

12.     A. his　　　　　 B. her　　　　　 C. its　　　　　 D. their

13.     A. managing　　　　 B. succeeding　　　 C. trying 　　　　　 D. acting

14.     A. only　　　　　　 B. almost　　　　　 C. just　　　　　 　 D. then

15.     A. none　 　　　　　 B. no　　　　　　 C. no one　　　　 　 D. nobody

16.     A. gave　　　　　　 B. succeeded 　　　 C. failed　　　　 　 D. believed

17.     A. lived　　　　　　 B. worked　　　　 C. played　　　　 　 D. graduated

18.     A. made　　　　　　 B. took　　　　　　 C. expected　　　 　 D. proved

19.     A. early　　　　　　 B. deeply　　　　　 C. late　　　　　 　 D. simple

20.     A. encourage　　　　 B. love　　　　　　 C. astonish　　　 　 D. disappoint

A person may have an idea about himself that will prevent him from doing good work..

He may have the belief that he is not capable of it. A child may think he is     16    because he does not understand how to make the     17     of his mental faculties. Older people may be mistaken that they are incapable of learning anything new because of their    18      .

A person who believes that he is incapable will not make a real     19   , because he feels that it would be useless. He won' t go at a job with the confidence necessary for    20  , and he won't work his hardest, even though he may think he is doing so. He is     21     likely to fail, and the failure will     22    his belief in his incompetence.

Alfred Adler, a famous doctor, had a(n)     23    like this. When he was a small boy, he had a poor  24  in math. His teacher told his parents he had no ability in math in order that they would not  25    too much of him. In this way, they two   26     the idea. He accepted   27    mistaken thinking of his ability, felt that it was useless to     28    and was very poor at math,     29   as they expected.

One day he worked out a problem which     30    of the other students had been able to solve. Adler     31    in solving the problem. This gave him confidence. He now    32   with interest, determination and purpose, and he soon became especially good at     33    . He not only proved that he could learn math well, but luckily he learned     34     in his life from his own experience that if a person goes at a job with determination and purpose, he may      35     himself as well as others by his ability.