高二英语外研版选修六习题单元卷五 含答案精校版Word下载.docx

1、阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。AA test to tell if you are at risk from Alzheimers disease （阿尔茨海默氏病） and dozens of other conditions goes on sale in Britain today costing 125.The test uses a saliva sample to provide more than 100 pieces of genetic information including whether users are more likel

2、y than normal to suffer Parkinsons disease （帕金森病）, some cancers or baldness.It can also predict whether they like coffee or hate Brussels sprouts （甘蓝）, which type of exercise is likely to suit them best and give information about a persons ancestry （家族）The test, already available in the US, is being

3、 marketed online by 23andMe, a firm partfunded by Google.A customer spits into a tube, seals it and sends it back to 23andMes labs for analysis. Four to six weeks later, they receive a detailed report in the post written in everyday language.It will tell them, for example, whether their risk of Alzh

4、eimers disease is higher or lower than average. 23andMe run by Anne Wojcicki, wife of Google cofounder Sergey Brin says its mission is to ensure that individuals can personally access, understand and benefit from the human genome （基因组）It says that armed with the information, people can take better c

5、are of their health. For instance, the printout may give someone the impetus （动力） they need to give up smoking or it could mean they receive regular health checks so that an illness can be caught and treated early.Genetic tests are already available in Britain but generally provide less information

6、and are more expensive.1A test to tell if you are at risk from some diseases _Acosts 125 every dayBcosts about 125Cis of little useDcan help sick people recover2What does the test make use of to provide genetic information?AThe blood in a persons brain.BThe liquid produced in a persons mouth.CThe sk

7、in in a persons breast.DA persons hair.3Which of the following is TRUE according to the passage?A23andMe depends on Google financially.B23andMe is run by Sergey Brin and his wife.CSergey Brin founded Google on his own.D23andMe is popular now.B There are three reasons why I dont think that we are rea

8、dy for cloning. Firstly, we dont know exactly what the consequences of cloning would be. For example, if scientists cloned a man, they might know what he would look like, but they wouldnt know his quality. What would happen if scientists cloned another Hitler or others like him? Do you really think

9、we would survive if this became a reality? Secondly, cloning raises many ethical questions. Look back at the cloned man that has been presented and ask yourself these questions：“Do you really think that he would be a man？”“Who would be responsible for him？“Do you think he should have the same rights

10、 as we have？ I dont think that we can answer these questions now. Lastly, we dont know exactly what the meaning of life is. In my opinion, creating life is the duty of nature, and we must not interfere （干预） with that task because we cant understand the extremely complicated relationships among lives

11、 that are defined by nature. Usually these relationships are extremely complex. Sometimes, they seem to be so untouchable that they cannot be changed. From my point of view, we have to look at the natural environment around us. We can see that an ecosystem （生态系统） is made up of a lot of different kin

12、ds of life, and each life has its own function within the system. If we disturb that, I think it could lead to our extinction （灭绝） Even though cloning may have a lot of benefits for humans, I think we should stop cloning because we do not understand it and cant control all of its effects. Maybe in t

13、he future, we will be ready to do it, but that time has not yet arrived.4According to the author, we are not ready for cloning because _Atwo or more people may have the same appearanceBscientists are not sure about the personalities of the cloned peopleCpeople may not function properly if there are

14、more cloned human beingsDcloning has not been permitted by the government5In the third argument the author fears that we will _ if we create life at will.Achange the natural environment around usBdisturb the ecosystem in natureCsuffer from overpopulationDaccelerate the extinction of animals6Accordin

15、g to the passage, whats the authors attitude towards cloning?APositive.BCritical.CIndifferent. DSupportive.7Which of the following would be the best title for the passage?ATo Clone or NotBWhy Should We Stop Cloning?CScientific Research on CloningDThe Advantages and Disadvantages of CloningCI grew up in an area where the natural disaster I was really concerned about was earthquakes.Besides the fire drills （演习） we had each year at school, we also had earthquake drills. Luckily, there are a few thin