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1、Unit 2 Cloning Section Grammar & Writing.完成句子1他们两个睡了整整三个小时。They_two slept for three hours.2然后传来命令，每个人在中午前要离开村子。Then came the order that everyone (should) leave the village before noon.3他对物理考试失败的消息感到难过。He was cast down by the news that he had failed the physics exam.4随着时间的推进，哪支队伍会赢得这场比赛的疑问消失了。With ti
2、me going on，the doubt which team would win disappeared. 【导学号：62320031】5我不知道他们多久会来。I have no idea how_soon_they_are_coming.阅读理解AAuthors Kyle Kurpinski and TerryDJohnson pretty much have me convinced that human cloning is quite possible and is a future certainty.Kurpinski and Johnson are both bioengin
3、eering experts; unlike similar scientists you have seen in the movies，they both have a sense of humor.What surprises me is that Kurpinski and Johnson are able to take something as complicated as DNA and make it understandable.The book How to Defeat Your Own Clone teaches us what is now known as DNAe
4、ncoded, how that happens, and why people with similar DNA dont look or act the same.The book not only helps us get a basic understanding of what DNA and its purpose are, but also explains cloning and stem cell (干细胞)research.It occurs to me that a lot of people who are against stem cell research dont
5、 know what they are protesting about.The authors provide a history of cloning, as well as information about stem cells.The real fun starts when the authors attack various myths about cloning.Obviously, too many people have been watching too many bad movies and television programs.Remember theyre jus
6、t fictional stories.If, somehow, scientists manage to clone you.Twenty years from now your clone isnt going to kill you.Among the myths explored and exploded are that a clone will know everything you know and will act as you do, that heads which are cut off can be kept alive, and that a clone has no
7、 belly button (肚脐)Many of the myths are ridiculous but many people believe them.Kurpinski and Johnson also detail some bioimprovements “that really work”You see, genes can be controlled to help you sleep better and become smarter, healthier, and taller.Well.not exactly you，but future generations.If
8、you do wind up in a battle with your own clone, who will be considerably younger than you, remember that it is not you and that it doesnt know what you know.【语篇解读】本文主要介绍How to Defeat Your Own Clone这本书的情况及其他一些感想。1Many bioengineering experts in the movies are _.AhumorousBwealthyCserious Dcrazy【解析】推理判断
9、题。从第一段的“unlike similar scientists you have seen in the movies，they both have a sense of humor”可知电影中的生物工程学家一般都是没有幽默感的。【答案】C2Which of the following things are in the book How to Defeat Your Own Clone?aWhat DNA and its purpose are.bWho is against cloning.cThe history of cloning.dThe myths about cloning
10、.eThe disadvantages of cloning.Aa，b，e Ba，c，dCb，d，e Db，c，d【解析】细节理解题。从第二段的“The book not only helps us get a basic understanding of what DNA and its purpose are.The authors provide a history of cloning.”及第三段的“The real fun starts when the authors attack various myths about cloning.”可知答案。【答案】B3We can lea
11、rn from the passage that biotechnology_.Ahas been banned in many countries around the worldBis being used to improve ones intelligence right nowCcan help improve the physical condition of future generationsDis sure to cure any disease in the near future【解析】推理判断题。从第四段的“.genes can be controlled to hel
12、p you sleep better and become smarter，healthier，and taller.Well.not exactly you，but future generations.”可知C项正确。【答案】C4According to the passage, a clone of you_.Awill want to kill youBknows whatever you knowChas no belly buttonDwill be younger than you【解析】细节理解题。从最后一段的“who will be considerably younger
13、than you”可知D项正确。【答案】DBDeath is natural, but do you have any idea of the process of dying? Modern scientists divide the process of dying into two phasesclinical or temporary death and biological death.Clinical death occurs when the vital organs, such as the heart or lungs, have ceased to function, bu
14、t have not suffered permanent damage.The organism can still be revived(复活)Biological death occurs when changes in the organism lead to the “breaking up” of vital cells and tissues.Death is then unchangeable and final.Scientists have been seeking a way to prolong the period of clinical death so that
15、the organism can remain alive before biological death occurs.The best method developed so far involves cooling of the organism, combined with narcotic sleep.By slowing down the bodys metabolism(新陈代谢), cooling delays the processes leading to biological death.To illustrate how this works, scientists performed an experiment on a sixyearold female monkey called Keta.The scientist put Keta to sleep with a narcotic.Then they surrounded her body with icebags and began checking her body temperature.When it had dropped to 28 degrees the scientists began draining blood from an artery.Th
