高中英语 unit2《Cloning》课件 新人教选修8.ppt

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1、Unit 2 CloningUnit 2 Cloning人教版高中英语模块八人教版高中英语模块八人教版高中英语模块八人教版高中英语模块八Module 82021/8/11 星期三1策划：学生双语报English SongEnglish ClassLanguage Data Bank2021/8/11 星期三2策划：学生双语报课时分配课时板块结合范例Period 1&2 Warming up and Reading I Period 3Learning about languagePeriod 4Reading IIPeriod 5Listening and Speaking Period 6W

2、riting2021/8/11 星期三3策划：学生双语报Period 1&2 Warmingup and Reading IUnit 2 Cloning Period 1&2:幻灯片9-26页2021/8/11 星期三4策划：学生双语报Look at the following pictures and answer the questions:1.Its the most famous sheep in the world.Do you know how Dolly is different from other sheep?Warming up (5ms)She was cloned wh

3、ile the others were born naturally.It is the copy of another sheep.2021/8/11 星期三5策划：学生双语报2.What is cloning?Cloning is a way of making an exact copy of another animal or plant.3.Are the following clones the same?If not,what is the difference?NO.The first four are man-made clones,the rest two are natu

4、ral clones.2021/8/11 星期三6策划：学生双语报In this class well learn a passage about cloning,but before we come to the text,can you guess how a clone is produced?Pre-reading (3ms)The cloning of plants is simple and relatively easy.It can be done by taking cuttings(man-made cloning)or letting the plant produce

5、its own runners(natural cloning).The cloning of animals is more complicated.It was not achieved until 1996 and is fully explained in the passage well learn today.2021/8/11 星期三7策划：学生双语报Reading I Scanning(5ms)Write the letter“T”if the statement is true.Write“F”if it is false.1.Cloning means making a c

6、opy of an animal or a plant.2.Gardeners can make a lot of money by cloning plants.3.Cloning animals is as complicated as cloning plants.FFT2021/8/11 星期三8策划：学生双语报4.Dolly the sheep was the first successful clone of a mammal5.Natural clones happen in animals as will as in plants.TT2021/8/11 星期三9策划：学生双语

7、报1.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.Reading II Skimming(5ms)Choose the right answer according to the text.2021/

8、8/11 星期三10策划：学生双语报2.It can be inferred from the passage that a cloned animal_.A.usually lives as long as the original one B.usually lives longer than the original one C.usually lives longer than the original one D.is usually as healthy as the original one2021/8/11 星期三11策划：学生双语报3.Which of the followi

9、ng is not an advantage of cloning?A.Cloning can be used for medical purposes.B.Large quantities of food can be produced by cloning.C.Cloning can help keep animals from becoming extinct.D.Famous persons who have passed away can be cloned.2021/8/11 星期三12策划：学生双语报4.What is peoples fear about human cloni

10、ng?Which of the following is wrong?A.Cloned Hitlers would do harm to the world.B.Cloned people may be killed at will for medical aid.C.A woman would have difficulty recognizing her real husband.D.Men will die out because a woman can give birth to a baby without a husband.2021/8/11 星期三13策划：学生双语报Readi

11、ng III Detail reading(8ms)Fill in the chart using the information from the text.Problems or dangers of cloningAdvantages of cloningAnimals may_ _ of older animals.Medical cloning could _ _ for serious degenerative(变质的）变质的）_ in humans.developtheillnessesproducecuresillnesses2021/8/11 星期三14策划：学生双语报Ani

12、mal clones may _ _ than the donor animalsCloning plants can _ _ of similar _ _ _._ _ may want to clone themselves.Cloning plants can be _ for research on _ _ _.There are _ _ to cloning human beings.Cloning can help save _ _.dieyoungerproduceplantsqualityforsaleleaderusefulEvil plantspeciesmoralobjec

13、tionsendangeredanimalsnew2021/8/11 星期三15策划：学生双语报Reading IV Intensive reading(7ms)Read the letter again,then try to find the main idea of each paragraph.1.Cloning is _ 2.Cloning has _ uses.3.The _ of Dolly.4.The _ of Dolly.5.It is _ to clone human beings.a way of making an exact copy of another anima

14、l and plant.problemstwo majoreffectforbidden2021/8/11 星期三16策划：学生双语报Practice discussion(8ms)Choose one of the following questions to discuss in groups.The leader of each group should write down every members opinion,then the volunteers will show your group work to the whole class:2021/8/11 星期三17策划：学生

15、双语报Questions:1.Do you support the idea of producing human embryos(胚胎胚胎)for medical purposes?Why?2.Do you think it a good idea to use cloned humans for organ(器官器官)transplants?Why?3.Do you think a cloned human should have human rights?Why?4.Do you think cloned humans will have the same talents as the

16、original ones?Why?2021/8/11 星期三18策划：学生双语报Assignment Surf the Internet to find more information about cloning and you are expected to present it to your classmates in the next class.2021/8/11 星期三19策划：学生双语报Language points for reading I2021/8/11 星期三20策划：学生双语报Take a break!2021/8/11 星期三21策划：学生双语报Period 3

17、 Learning about languageUnit 2 Cloning Period 3:幻灯片27-48页2021/8/11 星期三22策划：学生双语报Checking answer I(2ms)Answer keys for Ex.1 on Page 13:1.differ2.cast down3.accumulated4.undertake5.exact6.altogether2021/8/11 星期三23策划：学生双语报Checking answer II(2ms)Answer keys for Ex.2 on Page 13:mercial4.Are you in favour

18、 of5.procedure6.I object7.will forbid2021/8/11 星期三24策划：学生双语报Checking answer III(3ms)Answer keys for Ex.3 on Page 13:1.undertake2.2.controversial3.3.satisfaction4.Cast down5.breakthrough6.accumulate2021/8/11 星期三25策划：学生双语报Checking answer IV(2ms)Answer keys for Ex.4 on Page 14:1.C2.F3.D4.E5.B6.A2021/8/

19、11 星期三26策划：学生双语报Checking answer V(10ms)Answer keys for Ex.2(Translation)on Page 56(Workbook):1.My rabbit gave birth to four exactly identical babies several days ago.2.From time to time we think that humans can use cloning to bring extinct animals back to life.3.The plan to develop human clones is b

20、ound to raise controversial questions.4.Shortly after he retired,the old man wrote a novel about his childhood.2021/8/11 星期三27策划：学生双语报5.She is unable to speak aloud because she has just had an operation on her throat.6.Edward was much cast down by the news that he couldnt obtain the graduation certi

21、ficate.7.His efforts paid off when the doctor saw the patient opened his eyes.8.The scientist made the assumption that there is no animal life on other plants.Checking answer V(10ms)Answer keys for Ex.2(Translation)on Page 56(Workbook):2021/8/11 星期三28策划：学生双语报Useful structure (20ms)theAppositive(word

22、s,phrasestheAppositive(words,phrasesandclauses)andclauses)2021/8/11 星期三29策划：学生双语报同位同位语从句与从句与that引引导的定的定语从句的区从句的区别：1、同位、同位语从句与名从句与名词之之间在在逻辑上是上是“主主语+be+表表语”的关系。的关系。该名名词是需要做特殊是需要做特殊说明的明的抽象名抽象名词。例如：。例如：a)听听说他他们的的队赢了，他了，他们很高很高兴。_ _.b)消息就是他消息就是他们队赢了。了。_.They were delighted at the news that their team had

23、wonThe news was that their team had won2021/8/11 星期三30策划：学生双语报2、从引、从引导词来看：引来看：引导词that在同位在同位语从句从句中是中是连词，只起，只起连接作用，无具体接作用，无具体词义，that不可省略；不可省略；that在定在定语从句中是关系代从句中是关系代词，它在从句中充当一定成分，它在从句中充当一定成分 主主语或或宾语，有具体，有具体词义，作，作宾语时还可以省略。可以省略。例如：例如：a)The factory _ we visited yesterday is a chemical one.b)The news _ he

24、 will leave for Shanghai is true.(that)that定语从句定语从句同位语从句同位语从句2021/8/11 星期三31策划：学生双语报3、同位语从句的简易判断方法：同位语、同位语从句的简易判断方法：同位语与其先行与其先行词之之间在在逻辑上是上是“主主语+be+表表语”的同位的同位语关关系。所以，可以在名系。所以，可以在名词从句之从句之间加系加系动词be，使之，使之构成一个新句子，如果合乎构成一个新句子，如果合乎逻辑，句子通，句子通顺，则原原句句为同位同位语从句；定从句；定语从句是不能从句是不能够有系表有系表结构把构把先行先行词与从句与从句连接起来的。例如：接起

25、来的。例如：The belief that the earth is flat is still held in some countries._.The belief is that the earth is flat2021/8/11 星期三32策划：学生双语报另外，能用于名词性从句的名词有：另外，能用于名词性从句的名词有：ability,patience,anxiety,answer,order,report,wish,decision,suggestion,belief,doubt,fact,hope,message,news,promise,question,reply等等。等等。2

26、021/8/11 星期三33策划：学生双语报1.Along with the letter was his promise _ he would visit me this coming Christmas.(2004春春季上海季上海)A.which B.that C.what D.whether答案答案B B。这是一个同位语从句，解释。这是一个同位语从句，解释promisepromise的具体内容，要用的具体内容，要用thatthat引导。引导。高考链接2021/8/11 星期三34策划：学生双语报2.There is a new problem involved in the popula

27、rity of private cars _ road condition need _.(2003年上海年上海)A.that;to be improved B.which;to be improvedC.where;to be improved D.when;improving解析：答案为解析：答案为A.that引导同位语从句说明引导同位语从句说明“新问题新问题”的内容。的内容。Need后既可接动名词的后既可接动名词的主动式，也可接动词不定式的被动式作宾主动式，也可接动词不定式的被动式作宾语。语。2021/8/11 星期三35策划：学生双语报3.Theres a feeling in me

28、_ well never know what a UFO is not ever.(2002年上海年上海)A.that B.which C.of which D.what解析：答案解析：答案A。同位语从句。同位语从句that well never know what a UFO is not ever作作a feeling的同位语，解的同位语，解释释a feeling 的具体内容。的具体内容。That连接同位语从句时，连接同位语从句时，只起连接作用，不作从句的任何成分。只起连接作用，不作从句的任何成分。2021/8/11 星期三36策划：学生双语报4.Information has been

29、put forward _ more middle school graduates will be admitted into universities.(2001年上海年上海)A.while B.that C.when D.as解析：答案解析：答案B。That引导从句作引导从句作information的同的同位语，解释位语，解释information的具体内容。的具体内容。2021/8/11 星期三37策划：学生双语报5.These wild flowers are so special I would do _ I can to save them.(NMET2000春季春季北京北京)A

30、.whatever B.that C.which D.whichever 解析：答案解析：答案A。do后接宾语从句，宾语从句后接宾语从句，宾语从句I can 后省略了后省略了do，缺少宾语。，缺少宾语。Whatever在宾语在宾语从句中作宾语。从句中作宾语。2021/8/11 星期三38策划：学生双语报Finish the following exercises:1.His central idea is _ the losers do not write history.A.X B.because C.that D.whether2.I think _ certain that she wi

31、ll do well in her exam.A.that B.this is C.it D.whats2021/8/11 星期三39策划：学生双语报 3.We should stick to _ is true.A.which B.that C.anything which D.whatever 4.You will find no mistake _ Ive written.A.what B.in what C.with what D.that 2021/8/11 星期三40策划：学生双语报 5.There is a rule in our school _ no one is permi

32、tted to smoke.A.where B.which C.that D.what 6.He didnt know which room _.A.they lived B.they lived in C.did they live D.did they live in2021/8/11 星期三41策划：学生双语报Assignment1.Summarize the rules of the Passive Voice.2.Finish the exercises of“Discovering useful structures”on Page 22 and Page 64-65.2021/8

33、/11 星期三42策划：学生双语报Take a break!2021/8/11 星期三43策划：学生双语报Period 4 Reading IIUnit 2 Cloning Period 4:幻灯片49-61页2021/8/11 星期三44策划：学生双语报Warming up (4ms)Answer the following questions:1.Do you like dinosaurs?Where have you seen them?Can you see them in our real life?Why?2.Do you think it is possible to clone

34、 dinosaurs?If yes,do you think thats good for human beings?Why?(Students give their own answers.)2021/8/11 星期三45策划：学生双语报Reading-I scanning(5ms)Read the text,then tell the following sentences are true or false.(Students can discuss in pairs.)1.Scientists are still experimenting with cloning mammals b

35、ecause they think it can make money.2.The animals that have disappeared from the earth,like dinosaurs,can be brought back to life through cloning.3.If we can clone any extinct animals,we should let them live in a zoo.FFF2021/8/11 星期三46策划：学生双语报Reading-II Detail reading(6ms)Read the text,then answer t

36、he following questions.(Students can discuss in pairs.)1.Why shouldt you clone an extinct animal unless there is enough diversity in the group?2.Why is it wrong to clone an extinct animal if it would have to live in a zoo?3.Why cant you clone the DNA of animals that have been extinct longer than 10,

37、000 years?2021/8/11 星期三47策划：学生双语报1.Why shouldt you clone an extinct animal unless there is enough diversity in the group?2.There will not be enough genetic variation in the group to be able to resist new illnesses.2021/8/11 星期三48策划：学生双语报2.Why is it wrong to clone an extinct animal if it would have t

38、o live in a zoo?It is not a good idea to clone an animal that would have to live in a zoo because it is not a suitable habitat to develop and increase its numbers.The zoo is not a natural environment for a wild animal.2021/8/11 星期三49策划：学生双语报3.Why cant you clone the DNA of animals that have been exti

39、nct longer than 10,000 years?The DNA of animals more than 10,000 years old is not suitable for cloning,for it cant survive so long.2021/8/11 星期三50策划：学生双语报Reading-III Argument (10ms)1.Read the passage again and have a argument according to the requirement of Ex.2 on Page 16.2.Students work in groups,

40、when discussing,the head of each group should write down the opinions of all the members.3.Ask some volunteers to show their opinions.2021/8/11 星期三51策划：学生双语报Reading-IV Reading on Page 58-59 (10ms)Students read the passage on Page 58-59,then finish the following chart:Team Whats their argument?Two re

41、asons for/against medical cloningDo you agree with them?why?A1.to _that have no cure at the momentVarious answers and reasons are possible2.To help people _which make them_ For medical cloningcure serious illnesseswho havediseasesgradually lose their ability to move easily or to think2021/8/11 星期三52

42、策划：学生双语报Team Whats their argument?Two reasons for/against medical cloningDo you agree with them?why?B1.to make the stem cells that _of one person,you have to_ Various answers and reasons are possible2.Scientists are worried about _Against medical cloningwill cure an illnessthe efficiency of the syst

43、emkill another human being2021/8/11 星期三53策划：学生双语报Reading-IV Feeding back (5ms)1.Students ask some questions about the two passages learnt in this class.2.Ask other students to answer the questions first,then the teacher makes a conclusion.2021/8/11 星期三54策划：学生双语报Assignment 1.Finish the exercises on w

44、orkbook.2.Prepare for the next class.2021/8/11 星期三55策划：学生双语报Take a break!2021/8/11 星期三56策划：学生双语报Period 5 Listening and SpeakingUnit 2 Cloning Period 5:幻灯片62-71页2021/8/11 星期三57策划：学生双语报Listening I(5ms)Ex.1 on Page 17.1.Listen to the passage for the first time,then tick those that you hear.Keys:1 3 4 2

45、021/8/11 星期三58策划：学生双语报Listening II(10ms)Ex.2 on Page 17.Listen to the tape for the second time and finish the following chart:cruelMarys ideas about cloning Xiao Qings ideas about cloing_ to animalsscientists are doing a _ jobmakes them do _May bring back _animalsit is a _ problems because _clone bo

46、rn _scientist need _ the speciesit may _ for illnessunnatural things“dead end”a age of“mother”weakenswonderfulextinctit is a new scienceencouragementprovide medicine2021/8/11 星期三59策划：学生双语报Speaking (10ms)having a discussion:1.With your partners,prepare a discussion according to the information in Ex.

47、3 on Page 17-18(every member should take notes when they are preparing).2.Have the class discussion.2021/8/11 星期三60策划：学生双语报Listening III(15ms)Listening task on Page 57.1.Listen to the tape for the first time and finish Ex.1 on Page 57.Keys:1 F 2 O 3 F 4 F 5 F 6 F 7 F 8 O 9 O 10 F2021/8/11 星期三61策划：学生

48、双语报Listening III(15ms)Listening task on Page 57.1.Listen to the tape for the second time and finish Ex.2 on Page 57.Keys:1.He wants to make his mother happy by keeping her pet dog alive forever and he also wants to take the chance to America for holiday when the dog is being there.2.Frank doesnt agr

49、ee with cloning because he thinks cloning is very expensive and it has many moral problems.2021/8/11 星期三62策划：学生双语报3.Billys mother is in favour of cloning.She is saving money to go to America to have her pet dog cloning just before it dies.4.Various answers are possible.2021/8/11 星期三63策划：学生双语报1.It is

50、 moral to make my mother happy.2.It can provide an excuse for a holiday abroad.3.My mother will need her pet when I am away.3.Listen to the tape again,then finish the following chart:Arguments for cloning petsArguments against cloning pets1.It is very expensive to clone a pet.2.It is selfish because