The reason for his success is ___________he worked very hard.

A. why             B. that           C. whether      D. because

The reason for his success is　　　　　 he worked very hard.

A. why　　　　　　 B. that　　　　　 C. whether　　 D. because

.

     Scientific experiments can sometimes go wrong and when they do, the results may range from the disastrous to the troubling. One such experiment took place in South America about fifty years ago. Whether its final consequences will cause serious damage or nothing more than a small trouble still remains to be seen.

       The story began in 1956 when an American scientist working in Brazil decided to solve the problem of increasing the productivity of that country’s bees. He imported a very active type of African bee from Tanzania and mated (交配) it with the more easygoing native variety to produce a new kind of bees. The new bees worked harder and produced twice as much honey. It seemed that Professor Kerr, for that was the scientist’s name, had a total success on his hands.

       Then things began to go wrong. For some reason as yet unseen, but perhaps as a result of something in their environment, the new bees began to develop extremely attacking personalities. They became bad-tempered and easy to be angry, attacked the native bees and drove them from their living places.

       But worse was to follow. Having taken over the countryside, the new bees, with their dangerous stings (叮) , began to attack its neighbors—cats , dogs, horses, chickens and finally man himself. A long period of terror began that has so far killed a great number of animals and about 150 human beings.

       This would have been enough if the bees had stayed in Brazil. But now they are on the move, heading northwards in countless millions towards Central and North America, and moving at the alarming speed of 200 miles a year. The countries that lie in their path are naturally worried because it looks as if nothing can be done to stop them.

60. Which of the following statements is right?

A. The results of the South American experiment have caused a serious trouble.             

B. Scientific experiments in South America have proved to be wrong.

C. The results of the South American experiment are not yet certain.                     

D. It’s clear that scientific experiments in South America are not important.

61. The experiment mentioned in this passage was designed to _________.

       A. increase the amount of honey in Brazil

       B. make Brazilian bees more easy-going

       C. increase the number of bees in Brazil

       D. make African bees less active

62. Which of the following may be the cause of the new bees attacking personalities?

       A. Their production of honey.          B. Their hard work.

       C. Their living environment.                D. Their bad temper.

63. The last paragraph implies that __________.

       A. the bees have been driven to Central and North America

       B. The bees may bring about trouble in more countries

       C. the bees must be stopped from moving north

       D. the bees prefer to live in Brazil

I entered St Thoma’s Hospital as a medical student at the age of 18 and spent five years there. I was an unsatisfactory student, for my heart, as you might have guessed, was not in it. I wanted, I had always wanted to be a writer, and in the evening, after my high tea, I wrote and read. Before long, I wrote a novel, called “Liza of Lambeth”, which I sent to a publisher and was accepted. It appeared during my last year at the hospital and had something of a success. It was of course an accident, but naturally I did not know that. I felt I could afford to give up medicine and make writing my profession; so, three days after I graduated from the school of medicine, I set out for Spain to write another book. Looking back now and knowing as I do the terrible difficulties of making a living by writing, I realize I was taking a fearful risk. It never even occurred to me.
The next ten years were very hard, and I earned an average of £100 a year. Then I had a bit of luck. The manager of the Court Theatre put on a play that failed ; the next play he arranged to put on was not ready , and he was at his wits’ end. He read a play of mine and, though he did not much like it, he thought it might just run for the six weeks till the play he had in mind to follow it with could be produced. It ran for fifteen months. Within a short while I had four plays running in London at the same time. Nothing of the kind had ever happened before. I was the talk of the town. One of the students at St Thomas’s Hospital asked the famous surgeon with whom I had worked whether he remembered me. “Yes, I remember him quite well, “he said. “ One of our failures, I’m afraid. “
1. Which of the following statements is not true?
A. The author was very pleased to have his book published but he didn’t realize it was something of an accident.
B. The success of his first book led the author to think he could afford to make writing his profession.
C. The author knew he was running a terrible risk when he decided to become a writer.
D. The author became a writer after graduation but was not a successful one.
2. In the second paragraph, “… he was at his wits’ end “means ________.
A. he was having a nervous breakdown       B. he was out of his wisdom
C. he did not know what to do            D. he almost went mad
3. The manager of the Court Theatre agreed to put the author’s play on the stage because _____________.
A. he thought it would run for fifteen months
B. he knew it was one of the author’s best plays shown in London
C. he had just put on a play that failed
D. the play he had arranged to put on was not ready
4. The author became the talk of the town. The reason was that __________.
A. he talked with a great many people in London about his plays
B. the plays he wrote were excellently performed in London
C. his performances in the Court Theatre were unexpectedly
D. he was criticized by an eminent surgeon as one of their failures

I entered St Thoma’s Hospital as a medical student at the age of 18 and spent five years there. I was an unsatisfactory student, for my heart, as you might have guessed, was not in it. I wanted, I had always wanted to be a writer, and in the evening, after my high tea, I wrote and read. Before long, I wrote a novel, called “Liza of Lambeth”, which I sent to a publisher and was accepted. It appeared during my last year at the hospital and had something of a success. It was of course an accident, but naturally I did not know that. I felt I could afford to give up medicine and make writing my profession; so, three days after I graduated from the school of medicine, I set out for Spain to write another book. Looking back now and knowing as I do the terrible difficulties of making a living by writing, I realize I was taking a fearful risk. It never even occurred to me.

The next ten years were very hard, and I earned an average of £100 a year. Then I had a bit of luck. The manager of the Court Theatre put on a play that failed ; the next play he arranged to put on was not ready , and he was at his wits’ end. He read a play of mine and, though he did not much like it, he thought it might just run for the six weeks till the play he had in mind to follow it with could be produced. It ran for fifteen months. Within a short while I had four plays running in London at the same time. Nothing of the kind had ever happened before. I was the talk of the town. One of the students at St Thomas’s Hospital asked the famous surgeon with whom I had worked whether he remembered me. “Yes, I remember him quite well, “he said. “ One of our failures, I’m afraid. “

1. Which of the following statements is not true?

A. The author was very pleased to have his book published but he didn’t realize it was something of an accident.

B. The success of his first book led the author to think he could afford to make writing his profession.

C. The author knew he was running a terrible risk when he decided to become a writer.

D. The author became a writer after graduation but was not a successful one.

2. In the second paragraph, “… he was at his wits’ end “means ________.

A. he was having a nervous breakdown       B. he was out of his wisdom

C. he did not know what to do             D. he almost went mad

3. The manager of the Court Theatre agreed to put the author’s play on the stage because _____________.

A. he thought it would run for fifteen months

B. he knew it was one of the author’s best plays shown in London

C. he had just put on a play that failed

D. the play he had arranged to put on was not ready

4. The author became the talk of the town. The reason was that __________.

A. he talked with a great many people in London about his plays

B. the plays he wrote were excellently performed in London

C. his performances in the Court Theatre were unexpectedly

D. he was criticized by an eminent surgeon as one of their failures