阅读下列短文 ,从每题所给的四个选项 (A 、B 、C 和 D )中 ,选出最佳选项。

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 easy-going 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 bad 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.

1.The results of the South American experiment .

A. have caused a serious trouble

B. have proved to be wrong

C. are highly thought of

D. are not yet certain

2.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

3.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.

4.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

完形填空

I've always had strong opinions of how love should be expressed, but others had their own ways of showing care.

What I _________ most about visiting my boyfriend's parents is the loud tick of the clock in the dining room as we _________ ate our meal. With so little conversation I was quick to _________ his family as cold. When we got into the _________ to go home, his father suddenly appeared.

_________, he began to wash his son's windscreen. I could feel he was a caring man through the glass.

I learned another lesson about love a few years later. My father often _________me early in the morning. “Buy Xerox. It's a good sharp price,” he might say when I answered the phone. No pleasant _________ or inquiry about my life, just financial instructions. This manner of his _________ me and we often quarreled. But one day, I thought about my father's success in business and realized that his concern for my financial security lay behind his _________ morning calls. The next time he called and told me to buy a stock, I _________ him.

When my social style has conflicted with that of my friends, I've often felt _________ . For example, I always return phone calls _________ and regularly contact with my friends. I expect the same from them. I had one friend who rarely called, answering my messages with short e-mails. I rushed to the _________ : She wasn't a good friend! My anger _________ as the holidays approached. But then she came to a gathering I _________ and handed me a beautiful dress I had fallen in love with when we did some window-shopping the previous month. I was _________at her thoughtfulness, and regretful for how I'd considered her to be _________ . Clearly I needed to change my expectations of friends.

Far too often, I ignored their _________ expressions, eagerly expecting them to do things in my _________ . Over the years, however, I've learned to_________ other persons' love signs.

1.A. remember B. enjoy C. value D. admire

2.A. excitedly B. nervously C. silently D. instantly

3.A. regard B. treat C. take D. think

4.A. bus B. train C. car D. plane

5.A. Punctually B. Carefully C. Proudly D. Coldly

6.A. visited B. interrupted C. warned D. telephoned

7.A. greeting B. meeting C. apology D. explanation

8.A. interested B. angered C. encouraged D. surprised

9.A. long B. short C. warm D. polite

10.A. praised B. remembered C. blamed D. thanked

11.A. content B. guilty C. curious D. disappointed

12.A. in order B. in turn C. without delay D. without difficulty

13.A. feeling B. suggestion C. judgment D. belief

14.A. disappeared B. grew C. helped D. declined

15.A. opened B. refused C. hosted D. invited

16.A. depressed B. upset C. fascinated D. shocked

17.A. uncaring B. dishonest C. unhappy D. uncooperative

18.A. unique B. common C. pleasant D. familiar

19.A. opinion B. way C. mind D. life

20.A. send B. read C. give D. express

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C. About $ 25. 3. D. About $ 26. 2.

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