2013-2014学年高二英语选修8同步辅导与检测课件：UNIT 2 CLONING 第3学时.ppt

1、第三学时Using LanguageReading，listening and speakingTask 1快速阅读课文The return of the dinosaurs？以约30词写出文章的段落大意。温馨提示：本文是议论文。写议论文的摘要时，要扣住文章的观点及作者持某种观点的理由。_Although people wish and suggest that extinct animals can be brought back to life,the author thinks it impossible or unsuitable to clone the extinct animal

2、s and he explains why he thinks so.Task 2仔细阅读The return of the dinosaurs？(P.15)然后判断下列句子是否正确。1Scientists are still experimenting with cloning mammals because they think it can make money.()2The animals that have disappeared from the earth，like dinosaurs，can be brought back to life through cloning.()F

3、F3If we can clone any extinct animals，we should let them live in a zoo.()4The cloning of plants is still a new science and its story began seriously in the 1950s.()5It is useless to clone an animal if there is not enough diversity in the group for it to overcome illnesses.()FFTPart A Role Play情景介绍：K

4、ate与George在谈论克隆绝种动物。角色：Kate and George 任务：(1)请根据中文提示提出问题。(2)请你的同学根据课文内容回答你的提问，然后你们互换角色进行口语练习。Q1：平民百姓对克隆绝种动物有兴趣吗？_Q2：在侏罗纪公园这部电影中，科学家克隆了什么动物？_Q3：为什么说要想克隆绝种动物，我们还有很长的路要走？_Q4：能否克隆像恐龙这样的动物？_Q5：不能克隆像恐龙这样的绝种动物的主要原因是什么？_Part ARole PlayQ1：Are ordinary people interested in cloning extinct animals?A1：Yes,they

5、are.Q2：What animals did the scientists clone in the film Jurassic Park?A2：In the film Jurassic Park,a scientist clones several different kinds of extinct dinosaurs.Q3：Why do we say it is a long way from being able to clone mammals?A3：Because the cloning of mammals is still a new science and its stor

6、y began seriously in the 1995s.Q4：Is it possible to clone extinct animals like dinosaurs?A4：No,it isnt.Q5：What are the main reasons for not being able to clone extinct animals like dinosaurs?A5：There are three main reasons.Firstly,you need perfect DNA.Secondly,there will not be enough genetic variat

7、ion in the group to be able to resist new illnesses.Thirdly,it would be unfair to clone any animal that would have to live in a zoo.Part BRetelling请用自己的话复述课文，你可以参照上述问题及其答案。关键词：clone,extinct animals，genetic variation_Part B RetellingThough the popularity of the film Jurassic Park showed ordinary peop

8、le interested in cloning extinct animals,in fact,it is still a long way to clone mammals because it is a new science and its story just began seriously in the 1995s.So it is impossible to clone extinct animals like dinosaurs.The reason for it is lack of perfect DNA,enough genetic variation and it is

9、 also unfair to clone any animal that would have to live in a zoo.After all,the zoo is not a natural environment for a wild animal.1.proves how the idea struck a mixture of fear and excitement into peoples hearts.(P.18)证实了这一想法使人们感到既兴奋又恐惧。词语链接strike fear/excitement into ones heart 使某人感到恐惧/兴奋strike a

10、balance between A and B打破A与B之间的平衡strike gold 打开成功之门strike sb.down 摧垮，使病倒，使丧命即学即练选用上述词语完成下列句子。(1)She _ with her latest novel,which made her famous all over the country.(2)Her words _ so that he was sleepless all night long,afraid of being killed unexpectedly some day.(3)He _ by cancer when he was onl

11、y thirty.(1)struck gold(2)struck fear into his heart(3)was struck down词语链接2From time to time people suggest that extinct animals like dinosaurs can possibly be brought back to life through cloning(P.15)不时有人提议，克隆技术将有可能使地球上像恐龙这样已经消失的动物复活。bring back to life 使复生，使复活come to oneself 苏醒过来完成下列句子。(1)It is sa

12、id that the mysterious medicine can _(能使死人复活)(2)He finally _(苏醒过来了)after three days sleep.即学即练(1)bring the dead back to life(2)came to himself 词语链接3All efforts of cloning an animal will be in vain if there is not enough diversity in the group to overcome illnesses.(P.15)如果某个动物群体没有足够的多样性以战胜疾病，那么克隆这种动

13、物的所有努力都将是无用的。vainadj.无用的in vain 徒劳，无用选用上述词语完成下列句子。(1)She closed her eyes tightly in a _ attempt to hold back the tears.(2)They tried _ to persuade her to go.(3)She waited _ for her son to return.即学即练(1)vain(2)in vain(3)in vain4.but others will survive and pass on the ability to resist that disease t

14、o the next generation.(P.15)而另外一些动物却都能存活下来，并且把这种免疫力传给下一代。pass on.to.将传给即学即练A翻译下列句子。(1)请把盐拿给我。_(2)He caught a serious disease and _(传给了他的家人)(1)Please pass on the salt to me.(2)passed it on to his family词语链接resistv.抵抗，对抗，抵制resistern.抵抗者，对抗者resistancen.抵抗，阻力即学即练B选用上述单词完成下列句子。(1)He could not _ the invit

15、ing food any longer.(2)Jack couldnt _ making jokes about his big nose.(3)We should do exercise to build up _ to disease.(1)resist(2)resist(3)resistance5A debate is an activity in which students can discuss two sides of an issue.(P.58)辩论就是学生就某一话题的两面性进行讨论的一种活动。debaten.&v.对(某事)进行辩论，讨论，参考(某事物)以决定What ar

16、e they debating(about)？他们在辩论什么？I debated buying a new car or a new house.我在考虑是买车还是买房。词语辨析：debate；argue；discuss；quarreldebate 常指在公断人的监督下或根据一套规则来进行的正式辩论，也可指坚持自己的主张而进行的任何争论。argue 是普通用词，可指以推理的方式表达自己的观点，也指达到争吵程度的激烈交换意见。discuss 讨论，强调人们希望满意地解决问题的共同愿望，没有debate所表示的固执己见的内涵。quarrel 争吵，吵架The two brothers argued

17、 vociferously over who should pay the bill.这两兄弟大声争论这笔账应由谁来支付。The House of Commons debated the proposal for two weeks.下院对这个提案辩论了两个星期。We had a meeting to discuss the problem of pollution.我们举行会议讨论污染问题。She quarreled with her brother about the terms of their fathers will.她和她哥哥为父亲的遗嘱条款争吵起来。即学即练用 debate,ar

18、gue,discuss,quarrel填空。(3)While they _about who should cook the dinner,the dog ran off with the meat.(4)I _it for a while，then decided not to go.(1)quarrel(2)will discuss(3)were arguing(4)debated(1)A between good friends is very unfortunate thing.(2)We the problem tomorrow,when you calm down.一、单词拼写。1

19、These two designs are almost_(相同的).2George failed to see the _(商业的)value of his discovery.3Jack is tough but always _(坦诚的)and fair.4Scientists have recently made a _(突破)in cloning.5Too much time was spent arguing about the _(程序)mercial3.straightforward4.breakthrough5.procedure6Im afraid you will thi

20、nk Im_(保守的).7_(宪法)is prior to all other laws.8Many people make the _(假设)that poverty only exists in the Third World.9She overcame her _(最初的)shyness and really enjoyed the evening.10This is a good opportunity to _(积累)experience.6.conservative7.Constitution8.assumption9.initial10.accumulate二、词语活用。用与st

21、rike相关的词语完成下列小段落。Mr.Black was sentenced to six months hard labour,but it didnt(1)_.Instead,he decided to keep on fighting with the government.He called on the workers to go on(2)_for better pay and working condition.The idea(3)_ and many of them couldnt fall asleep the night before the(4)_.They won!

22、Thus Mr.Black(5)_ and became a famous politician all over the country.(1)strike him down (2)strike(3)struck excitement into peoples hearts(4)strike(5)struck gold三、连词填空。根据句子的结构和意义，用适当的连词填空。1It happens in plants _ gardeners take cuttings from growing plants to make new ones.2.Actually,dinosaurs disapp

23、eared 65,000,000 years ago,_ the chance of dinosaurs ever returning to the earth is merely a dream.3.The fact _ she seemed to develop normally was very encouraging.4.However,scientists still wonder _ the cloning will help or harm us and _ it is leading us.5Then came the disturbing news _ Dolly had become seriously ill.that whensothatwhetherwhere