人教版高中英语选修八课件：unit2-reading复习过程.ppt

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1、人教版高中英语选修八课人教版高中英语选修八课件：件：unit2-readingunit2-readingHow much do you know about cloning?导导Dolly the sheepDolly and the Father of Dolly IanwilmutIn 1996,the famous sheep“Dolly”was cloned successfullyDolly the sheepIts the most famous sheep in the world.She was c_ while the others were born n_.It is th

2、e c_ of another sheep.lonedaturallyopyNow 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_.argumentsfuture思思2

3、.What is the writing style?A.Expositive(说明性的说明性的)B.Descriptive(描述性的描述性的)C.Argumentative(议论性的议论性的)D.Narrative(叙事性的叙事性的)Para 1 A.The problems of DollyPara 2 B.The two major uses of cloningPara 3 C.The attitudes towards cloningPara 4 D.The definition of cloningPara 5 E.The effect of cloning in society

4、Skimming（略读）（略读）:match the main idea with each paragraph1).The cloning of Dolly the sheep succeeded 1).The cloning of Dolly the sheep succeeded because_because_ A.its easier to clone a sheep than other animals.A.its easier to clone a sheep than other animals.B.the scientists were determined and work

5、ed hard B.the scientists were determined and worked hard with patience.with patience.C.the scientists were rewarded and got lots of C.the scientists were rewarded and got lots of money.money.D many other attempts to clone mammals failed.D many other attempts to clone mammals failed.2).Dolly the shee

6、p_.2).Dolly the sheep_.A.looked exactly like the sheep that provides the egg.A.looked exactly like the sheep that provides the egg.B.was the exact copy of the sheep that provides the B.was the exact copy of the sheep that provides the nucleus.nucleus.C.looked like the sheep that gave birth to it.C.l

7、ooked like the sheep that gave birth to it.D.had the characteristics of all three sheep.D.had the characteristics of all three sheep.BB3).The writers attitude towards cloning is_3).The writers attitude towards cloning is_A.Positive Positive 积极的积极的积极的积极的 B.Negative B.Negative 消极的消极的消极的消极的 C.objective

8、 C.objective 客观的客观的客观的客观的 D.favorable D.favorable 支持的支持的支持的支持的CDiscussionIs cloning good or bad for us?Advantages Disadvantages Group 1 and 2 Group 3 and 4Fill in the chartFill in the chartFill in the chartFill in the chart议展议展Problems or dangers of cloningAdvantages of cloningFill in the chart.Prob

9、lems or dangers of cloningAdvantages of cloning1.Get the illnesses 1.Get the illnesses _older _older animals.animals.Which were appropriate to 议展Gardeners use cloning to produce _commercial quantities of plants 2.Animal clones may2.Animal clones may live live _ than the _ than the originaloriginal a

10、nimals.animals.It is valuable for researchIt is valuable for research _3._ may 3._ may want to clone themselves want to clone themselves to to attain their attain their ambitionsambitions.It is valuable for_on animals.4.Religious leaders 4.Religious leaders _ about _ about cloning human beings.cloni

11、ng human beings.It is possible to cure _and even to_shorteron new plant speciesleadersEvil raised moral questionsMedical researchserious illnessesproduce human beings Cloning people is a good thing,or a bad thing?克隆人是福音克隆人是福音,还是恶兆？还是恶兆？Thinking意大利狂人医生意大利狂人医生:安蒂诺里安蒂诺里冒死也要克隆人的冒死也要克隆人的科学家科学家:布瓦瑟利耶布瓦瑟利耶

12、1.克克隆隆技技术术现现在在还还不不成成熟熟,克克隆隆人人可可能能有有很很多多先先天天性性生生理理缺陷。缺陷。2.克克隆隆人人的的身身份份难难以以认认定定,他他们们与与被被克克隆隆者者之之间间的的关关系系无无法纳入现有的伦理体系。法纳入现有的伦理体系。反对克隆人反对克隆人3.克隆技术有可能被滥用克隆技术有可能被滥用,成为恐成为恐怖分子的工具。怖分子的工具。4.从生物多样性上来说从生物多样性上来说,大量基因大量基因结构完全相同的克隆人结构完全相同的克隆人,可能诱可能诱发新型疾病的广泛传播发新型疾病的广泛传播,对人类对人类的生存不利。的生存不利。1.“不不让让我我们们克克隆隆人人,就就是是不不让让

13、我我 们们 修修 正正 我我 们们 的的 错错 误误,人人 类类 历历史史难难道道能能够够这这样样构构造造吗吗？”纽约时报书评纽约时报书评2.“当当然然应应该该克克隆隆人人,如如果果谁谁第第一一个个掌掌握握了了这这个个技技术术,他他就就是是我我真真正正的的、也也是是唯唯一一的的竞争对手。竞争对手。”比尔比尔盖茨盖茨支持克隆人支持克隆人3.“克隆人绝对是科学上了不起的进步克隆人绝对是科学上了不起的进步,克隆技术必将创造克隆技术必将创造21世纪的辉煌。世纪的辉煌。”麻省理工学院生命工程教授约翰麻省理工学院生命工程教授约翰布布洛克洛克4.“人体商业化是人类经济活动中无与伦人体商业化是人类经济活动中无

14、与伦比的成就比的成就,毫无疑问毫无疑问,克隆技术的出现将克隆技术的出现将为世人创造一个最为广泛和深远的市为世人创造一个最为广泛和深远的市场。场。”英国英国经济学家经济学家杂志。杂志。Summary Summary 检检检检 Cloning Cloning is is a a way way of of making making an an _copy _copy of of another another animal animal or or plant.plant.Cloning Cloning has has two two majormajor uses.uses.Firstly F

15、irstly,gardeners,gardeners use use it it to to produce produce _quantities quantities of of plants.Secondlyplants.Secondly，it it is isvaluablevaluable for for research.Cloning research.Cloning plants plants is is _while while cloning cloning animals animals is is veryvery_.The.The procedure procedur

16、e is is difficult difficult to to _.In In 19961996，scientists scientists succeeded succeeded in in _Dolly Dolly the the sheep.The sheep.The scientific scientific world world followed followed the the progress progress of of the the first first successful successful clone.Then clone.Then came came th

17、e the _news news that that Dolly Dolly was was ill ill and and then then died.Dollys died.Dollys appearance appearance _a a storm storm of of objections.Governments objections.Governments became became nervous nervous and and some some _ research research into into human human cloning.Scientists clo

18、ning.Scientists still still wonder wonder whether whether cloning cloning will will help help or or harm harm us us and and where where it it is is _us.us.exactexactcommercialcommercialstraightforwardstraightforwardcloningcloningdisturbingdisturbingraisedraisedleadingleadingcomplicatedcomplicatedundertakeundertakeforbadeforbade结束结束