18.With the development of science and technology,the research of human genes is playing more and more important part in our daily life.Sometimes it is a hot topic drawing more and more attention.
Gene technology can cure serious diseases that doctors at present can almost do nothing with,such as cancer and heart disease.Every year,millions of people are murdered by these two killers.But if the gene technology is used,not only these two diseases can be cured completely,bringing happiness and more living days to the patients,but also the great amount of money people spend curing their diseases can be saved,therefore it benefits the economy as well.In addition,people can live longer.
Gene technology can help people to give birth to more healthy and clever children.Some families have hereditary diseases and their children will for sure have the family disease,which is a great trouble for these families.In the past,doctors could do nothing about them.But gene technology can solve this problem perfectly.The scientists just need to find the wrong gene and correct it,and a healthy child will be born.
Some people are worrying that the gene research can be used to clone human beings in large quantities.In the past few years,scientists have succeeded in cloning a sheep; therefore these people predict that human babies would be cloned.But I believe cloned babies will not come out in large amounts,for most couples in the world can have babies in a very normal way.Of course,the governments must take care to control gene technology.
29.What's the main idea of the third paragraph?C
A.Gene technology can help people to give birth to a baby.
B.Gene technology can be used to clone human babies.
C.How gene technology can be used to treat hereditary diseases.
D.Gene technology can solve all the problems of the English imperial family.
30.In what way can gene technology help to treat hereditary diseases?B
A.Gene technology helps people with hereditary diseases to live longer.
B.Using gene technology,scientists find the wrong gene and correct it.
C.Using gene technology,human babies can be cloned.
D.Doctors can cure cancer and heart disease with the help of gene technology.
31.What is the main purpose of writing this passage?A
A.Expressing the writer's idea that gene technology will benefit people.
B.Telling people the advantages and disadvantages of gene technology.
C.Telling the readers that gene technology will not benefit people.
D.Explaining that gene technology will also do harm to the humanity.
分析 本文講述了基因技術(shù)的應(yīng)用.基因技術(shù)可以用于治療一些遺傳疾。没蚣夹g(shù),科學(xué)家可以發(fā)現(xiàn)致病基因并糾正它,基因技術(shù)將造福人類.
解答 29-31.CBA
29.C 考查段落大意.根據(jù)"But gene technology can solve this problem perfectly.The scientists just need to find the wrong gene and correct it,and a healthy child will be born."可知,第三段講述了基因技術(shù)是如何被用來治療遺傳性疾病的.故選C.
30.B 考查細(xì)節(jié)理解.根據(jù)第三段中的"The scientists just need to find the wrong gene and correct it,and a healthy child will be born"可知,利用基因技術(shù),科學(xué)家可以發(fā)現(xiàn)錯誤的基因并糾正它.故選B.
31.A 考查作者意圖.根據(jù)文章內(nèi)容可知,基因技術(shù)可以用于治療一些遺傳疾病,所以說基因技術(shù)將造福人類.
點(diǎn)評 閱讀理解考察學(xué)生的細(xì)節(jié)理解和推理判斷能力,做細(xì)節(jié)理解題時一定要找到文章中的原句,和題干進(jìn)行比較,再做出正確的選擇.在做推理判斷題不要以個人的主觀想象代替文章的事實,要根據(jù)文章事實進(jìn)行合乎邏輯的推理判斷.