9.In the year 1963,animal experimenter Clarence Little and his team carried out an experiment on more than 100 rats.The group of scientists used products such as cigarettes to test for lung cancer,and they were trying to find a cure.
They could not find any product to produce lung cancer or anything compared to the extremes that humans go through on the rats.Medical professionals are still insisting that they need to test on animals to cure cancer and other diseases.However,if rats can't contract the same diseases,it means there is no real point in testing them.
Since 1963,scientists have slowly been realizing that using animals in their experiments is not important.Medical advances have even been delayed due to experimenting on animals.Some data from U.S.Food and Drug Administration show that 92 percent of drugs which pass animal trials are found to be unsafe or ineffective in human trials and never reach the market.
Animal experimentation is less efficient and reliable than many non-animal methods of experimentation.The most hated and known practice of animal experimentation is "pound seizure" which is where animal shelters sell animals to some labs and companies to test their products.
It's shocking that some countries still allow testing on animals.There are many products that have not been tested on animals and they work even better than the products that have been.So the need for animal experimentation is zero;there are so many ways to get around it.Stopping animal experimentation could be easily done in a few steps:reducing the number of animals being tested,reducing the types of animals that are tested,making sure the outcome will be actually used and needed,and finally replacing all animals with non-living models.
32.Why did scientists do an experiment on rats in 1963?A
A.To look for a treatment for lung cancer.
B.To improve the quality of some medicines.
C.To find out how people suffered from cancer.
D.To look for the cause of an unknown disease.
33.What is a negative effect of using animals in experiments?B
A.Animals can easily become extinct.
B.Medical advances are slowed down.
C.A disease is easily spread among the animals.
D.Medicines used on animals are not accepted by men.
34.What do we know about"pound seizure"?A
A.It's widely used.
B.It's a non-animal test.
C.It helps stop animal testing.
D.It's reliable but not efficient.
35.Which of the following does the author agree with?D
A.Non-living models reduce the cost of experiments.
B.The government is to blame for medical tests.
C.It's easy to find a better way to test medicines.
D.There is no need to test medicines on animals.
分析 本文是一篇科教類閱讀,屬于說明文,1963年,動(dòng)物實(shí)驗(yàn)者克拉倫斯小和他的研究小組對(duì)超過100只老鼠進(jìn)行了一項(xiàng)實(shí)驗(yàn),這組科學(xué)家使用產(chǎn)品,如香煙為肺癌測(cè)試,他們?cè)噲D找到一種治療方法.本文以此展開談?wù),主要談(wù)摿擞脛?dòng)物做實(shí)驗(yàn).
解答 32.A.細(xì)節(jié)理解題.根據(jù)The group of scientists used products such as cigarettes to test for lung cancer,and they were trying to find a cure.可知,科學(xué)家以老鼠做實(shí)驗(yàn)是為了找到治療肺癌的方法.故選A.
33.B.推理判斷題.根據(jù)Since 1963,scientists have slowly been realizing that using animals in their experiments is not important.Medical advances have even been delayed due to experimenting on animals.可知,使用動(dòng)物做實(shí)驗(yàn)的消極影響是醫(yī)學(xué)發(fā)展慢.故選B.
34.A.細(xì)節(jié)理解題.根據(jù)The most hated and known practice of animal experimentation is "pound seizure" which is where animal shelters sell animals to some labs and companies to test their products.可知,pound seizure被廣泛使用.故選A.
35.D.推理判斷題.根據(jù)However,if rats can't contract the same diseases,it means there is no real point in testing them.可知,如果老鼠不會(huì)得相同的病,那測(cè)試他們就沒有意義.故作者認(rèn)為沒有必要在動(dòng)物身上測(cè)試藥.故選D.
點(diǎn)評(píng) 本文是一篇科教類閱讀,題目涉及多道細(xì)節(jié)理解題,推理判斷題.做題時(shí)學(xué)生應(yīng)仔細(xì)閱讀原文,把握文章主要內(nèi)容,聯(lián)系文章上下文內(nèi)容并結(jié)合所給選項(xiàng)含義,從中選出正確答案,一定要做到有理有據(jù),切忌胡亂猜測(cè).