5．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 1956when 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 neighbours--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 150human 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 200miles a year．The countries that lie in their path are naturally worried because it looks as if nothing can be done to stop them．
32．The results of the South American experimentD．
A．have caused a serious trouble
B．have proved to be wrong
C．a(chǎn)re highly thought of
D．a(chǎn)re not yet certain
33．The experiment mentioned in this passage was designed toA．
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
34．Which of the following may be the cause of the new bees'attacking personalities？C
A．Their production of honey．
B．Their hard work．
C．Their living environment．
D．Their bad temper．
35．The last paragraph implies thatB．
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．
分析 本文是一篇科教類閱讀，主要以巴西蜜蜂試驗的例子來說明有時候科學(xué)實驗出差錯可能會造成災(zāi)難性的或者是有麻煩的后果．
解答 32---35 DACB
32題答案：D考查細(xì)節(jié)推理，根據(jù)第一段的Whether its final consequences will cause serious damage or nothing more than a small trouble still remains to be seen．它最終的結(jié)果是否會引起嚴(yán)重的損傷或只不過是一個小問題還有待發(fā)現(xiàn)．故本題答案為D選項．
33題答案：A考查細(xì)節(jié)推理，根據(jù)第二段的The story began in 1956when an American scientist working in Brazil decided to solve the problem of increasing the productivity of that country's bees．故事開始于1956年，一位在巴西工作的美國科學(xué)家決定解決增加該國蜜蜂產(chǎn)量的問題．可知本題答案為A選項．
34題答案：C考查細(xì)節(jié)推理，根據(jù)第三段的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．由于某種目前還未知的原因（但可能是環(huán)境的結(jié)果），新的蜜蜂開始形成極強的攻擊個性．可知本題答案為C選項．
35題答案：B考查細(xì)節(jié)推理，根據(jù)最后一段的The countries that lie in their path are naturally worried because it looks as if nothing can be done to stop them．
位于它們（蜜蜂）路上的國家自然而然會擔(dān)憂因為看起來似乎沒什么可以阻止它們（通過他們的國家）．可知本題答案為B選項"蜜蜂會在更多的國家?guī)韱栴}"．
點評 本文是一篇科教類閱讀，題目涉及多道細(xì)節(jié)理解題，做題時結(jié)合原文和題目有針對 性找出相關(guān)語句進(jìn)行仔細(xì)分析，結(jié)合選項選出正確答案．推理判斷也是要在抓住關(guān)鍵句子的基礎(chǔ)上合理的分析才能得出正確的答案．
