Question

【題目】閱讀下列短文 ，從每題所給的四個(gè)選項(xiàng) （A 、B 、C 和 D ）中 ，選出最佳選項(xiàng)。

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

Answer 1

【答案】

【1】D

【2】A

【3】C

【4】B

【解析】

試題分析：科學(xué)實(shí)驗(yàn)的結(jié)果給人類帶來的影響有好有壞，很難做出評價(jià)。文章中列舉南美洲的新型蜜蜂的例子來證明這一點(diǎn)。

【1】D 推理判斷題。根據(jù)第一段后兩句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.可知50年前在南美洲進(jìn)行的這一個(gè)實(shí)驗(yàn)的結(jié)果還有待于進(jìn)一步觀察。也就是說還沒有確定。故D項(xiàng)正確。

【2】A 推理判斷題。根據(jù)第二段后兩句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.可知這種新型的蜜蜂的產(chǎn)蜜的量較多，似乎這個(gè)實(shí)驗(yàn)很成功。說明這個(gè)實(shí)驗(yàn)的目的就是增加蜜蜂的產(chǎn)蜜的量。故A正確。

【3】C 細(xì)節(jié)理解題。根據(jù)第三段第二句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.可知這種蜜蜂的極端性格可能是由于環(huán)境的原因。故C項(xiàng)正確。

【4】B 推理判斷題。根據(jù)最后一段第二句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.可知這種蜜蜂正在向北部遷移，而且速度較快。也許更多的國家會受到影響。