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1、Unit 2 Clonig,How much do you know about cloning? 导,Dolly the sheep,Dolly and the Father of Dolly Ianwilmut,In 1996, the famous sheep “Dolly” was cloned successfully,Dolly the sheep,Its the most famous sheep in the world.,She was c_ while the others were born n_. It is the c_ of another sheep.,man-m
2、ade clone,loned,aturally,opy,Now we are going to read a passage about cloning. How much do you know about cloning?Is it a good thing or a bad thing?,What is the main idea of the passage?,The passage tells us that animal cloning raised _ and scientists are not sure about its_.,arguments,future,思,2. W
3、hat is the writing style? A. Expositive (说明性的) B. Descriptive (描述性的) C. Argumentative (议论性的) D. Narrative(叙事性的),Para 1 A. The problems of Dolly Para 2 B. The two major uses of cloning Para 3 C. The attitudes towards cloning Para 4 D. The definition of cloning Para 5 E. The effect of cloning insociet
4、y,Skimming（略读）:match the main idea with each paragraph,1). The cloning of Dolly the sheep succeeded because_A. its easier to clone a sheep than other animals.B. the scientists were determined and worked hard with patience.C. the scientists were rewarded and got lots of money.D many other attempts to
5、 clone mammals failed. 2). Dolly the sheep_. A.looked exactly like the sheep that provides the egg. B.was the exact copy of the sheep that provides the nucleus. C. looked like the sheep that gave birth to it. D. had the characteristics of all three sheep.,B,B,3).The writers attitude towards cloning
6、is_ Positive 积极的 B. Negative 消极的 C.objective 客观的 D.favorable 支持的,C,Discussion,Is cloning good or bad for us ? Advantages Disadvantages Group 1 and 2 Group 3 and 4,Fill in the chart议展,Fill in the chart.,Which were appropriate to,议展,Gardeners use cloning to produce _,commercial quantities of plants,sh
7、orter,on new plant species,leaders,Evil,raised moral questions,Medical research,serious illnesses,produce human beings,Cloning people is a good thing ,or a bad thing? 克隆人是福音, 还是恶兆？,Thinking,意大利狂人医生:安蒂诺里,冒死也要克隆人的科学家:布瓦瑟利耶,1.克隆技术现在还不成熟,克隆人可能有很多先天性生理缺陷。 2.克隆人的身份难以认定,他们与被克隆者之间的关系无法纳入现有的伦理体系。,反对克隆人,3. 克隆
8、技术有可能被滥用,成为恐怖分子的工具。 4. 从生物多样性上来说,大量基因结构完全相同的克隆人,可能诱发新型疾病的广泛传播,对人类的生存不利。,1. “不让我们克隆人,就是不让我们修正我们的错误,人类 历史难道能够这样构造吗？”纽约时报书评 2. “当然应该克隆人,如果谁第一个掌握了这个技术,他就是我真正的、也是唯一的竞争对手。”比尔盖茨,支持克隆人,3. “克隆人绝对是科学上了不起的进步,克隆技术必将创造21世纪的辉煌。” 麻省理工学院生命工程教授约翰布洛克 4. “人体商业化是人类经济活动中无与伦比的成就,毫无疑问,克隆技术的出现将为世人创造一个最为广泛和深远的市场。” 英国经济学家杂志。
9、,Summary 检 Cloning is a way of making an _copy of another animal or plant. Cloning has two major uses. Firstly ,gardeners use it to produce _quantities of plants.Secondly，it isvaluable for research.Cloning plants is _while cloning animals is very_.The procedure is difficult to _.In 1996，scientists s
10、ucceeded in _Dolly the sheep.The scientific world followed the progress of the first successful clone.Then came the _news that Dolly was ill and then died.Dollys appearance _a storm of objections.Governments became nervous and some _ research into human cloning.Scientists still wonder whether cloning will help or harm us and where it is _us.,exact,commercial,straightforward,cloning,disturbing,raised,leading,complicated,undertake,forbade,THANK YOU!,
