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1、 精品资料活页作业(五).阅读理解ANot long ago，making a baby boy or a baby girl was pretty much a hitormiss affair， but not any more now.Parents who have access to the genetic testing techniques(基因检测技术)can now predetermine their babys sex with great accuracy，as Monique and Scott Collins learned to their delight two
2、 years ago，when their longwishedfor daughter Jessica was born after genetic prescreening at a fertility clinic in Fairfax，Virginia.And baby Jessica is just the beginning.Within a decade or two，it may be possible to screen kids almost before pregnancy(怀孕)，such as how tall they are likely to be，what b
3、ody type they will have，their hair and eye color，and even their IQ and personality type.In fact，if gene therapy lives up to its promise，parents may some day be able to go beyond weeding out undesirable trials and start actually inserting the genes they want，perhaps even genes that have been crafted
4、in a lab.Parents may be going to fertility clinics and picking from a list of choices the way car buyers order airconditioning or wheels.“Its the most exciting shopping experience designing your baby，”says biotechnology(生物工艺学)critic，Jeremy Rifkin，who is concerned about the prospect(前景)“In a society
5、that is used to cosmetic surgery(整形手术)，this is not a big step.”The prospect of designer babies，like many of the ethical(伦理)problems caused by the genetic revolution，is causing the doctors，ethicists，religious leaders and politicians of the whole world to start a fierce conflict，who are trying to deci
6、de how they feel about it all.They still have a bit of time.Apart from gender(性别)，the only trails that can now be identified at the earliest stages of development are about a dozen of the most serious genetic diseases.Gene therapy in embryos(胚胎)is at least a few years away.And the gene or combinatio
7、n of genes responsible for most of our physical and mental attributes hasnt even been identified yet，so the idea of engineering genes in or out is of no practical meaning.1What is gene therapy supposed to do if it lives up to its promise?AScreen a baby for sex.BChoose a babys eye color.CImplant gene
8、s. DIdentify genetic disorder.解析：细节理解题。从第三段第一句可知答案是C“移植基因”。答案：C2According to the passage，what scientists can do with the genetic testing technology now is to _.Ascreen a babys sexBscreen babies for desirable qualitiesCput in genes parents wantDcraft genes in a lab解析：细节理解题。从第一段第二句可知答案。答案：A3What can b
9、est describe Jeremy Rifkins attitude toward designing babies through gene therapy?AStrongly supportive. BWarmly welcome.CUninterested. DCritical.解析：推理判断题。从第三段第三句中“Jeremy Rifkin，who is concerned about(担心的，忧虑的)the prospect.”可知答案。答案：D4From the passage we know that _.Adesigning babies is purely scientif
10、ic not to cause ethical problemsBdesigning babies may bring people a lot of ethical concernsCscientists are now working against time to design babiesDpeople are concerned about the harm clone to science by designing babies解析：推理判断题。从第四段“like many of the ethical.world to start a fierce conflict”可知答案。答
11、案：BBThere are many ways in which human cloning is expected to benefit humans.Dr Richard Seed，one of the leading supporters of human cloning technology，suggests that it may someday be possible to completely change the aging process because of what we learn from cloning.Scientists believe that they ma
12、y be able to treat heart attack victims by cloning their healthy heart cells and injecting them into the areas of the heart that have been damaged.Heart disease is the number one killer in the US and several other industrialised countries.There has been a breakthrough with human stem cells.Embryonic
13、 stem cells can be grown to produce organs to repair or replace damaged ones.Skin for burn victims，brain cells for the brain damaged，hearts，lungs，and kidneys could be produced.By combining this technology with human cloning technology，it may be possible to produce needed organs for suffering people
14、that will be free of rejection by their immune systems.Conditions such as Alzheimers disease，Parkinsons disease，heart failure，and other problems can be cured if human cloning and its technology are not banned.Though current treatments for infertility (不生育) are getting a fair amount of publicity in t
15、he news，they，in terms of percentages，are not very successful.Some data shows that current infertility treatments are less than 10 percent successful.Couples go through physically and emotionally painful procedures for a small chance of having children.Many couples run out of time and money without s
16、uccessfully having children.Human cloning could make it possible for many more infertile couples to have children than ever before possible.5According to Dr Richard Seed，we can use cloning technology to _.Aproduce more animalsBmake people live happilyCmake people look youngerDcure people of many diseases6We can lea
