高中英语 unit2《Cloning》课件 新人教选修8

1、2021/8/11 星期三1Unit 2 Cloning人教版高中英语模块八Module 82021/8/11 星期三2English SongEnglish ClassLanguage Data Bank2021/8/11 星期三3课时分配课时板块结合范例Period 1&2Warming up and Reading I Period 3Learning about languagePeriod 4Reading IIPeriod 5Listening and Speaking Period 6Writing2021/8/11 星期三4Period 1&2 Warmingup and Re

2、ading IUnit 2 Cloning Period 1&2: 幻灯片9-26页2021/8/11 星期三5Look 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 while the others were born naturally. It is the copy of ano

3、ther sheep. 2021/8/11 星期三62. 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 natural clones.2021/8/11 星期三7In this class well learn a pass

4、age 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 its own runners (natural cloning). The cloning of animal

5、s is more complicated. It was not achieved until 1996 and is fully explained in the passage well learn today. 2021/8/11 星期三8Reading I Scanning ( 5ms )Write the letter “T”if the statement is true. Write “F”if it is false.1.Cloning means making a copy of an animal or a plant.2.Gardeners can make a lot

6、 of money by cloning plants.3.Cloning animals is as complicated as cloning plants. FFT2021/8/11 星期三94. Dolly the sheep was the first successful clone of a mammal5.Natural clones happen in animals as will as in plants.TT2021/8/11 星期三101.Dolly the sheep_. A. looked exactly like the sheep that provides

7、 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.2021/8/11 星期三112. It can be inferred from the passage that a

8、 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 星期三123. Which of the following is not an advantage of cloning?Cloning can be used for medica

9、l purposes. Large quantities of food can be produced by cloning.Cloning can help keep animals from becoming extinct.Famous persons who have passed away can be cloned.2021/8/11 星期三134. What is peoples fear about human cloning? Which of the following is wrong?Cloned Hitlers would do harm to the world.

10、Cloned people may be killed at will for medical aid.A woman would have difficulty recognizing her real husband.Men will die out because a woman can give birth to a baby without a husband.2021/8/11 星期三14Reading III Detail reading ( 8ms )Fill in the chart using the information from the text.Problems o

11、r dangers of cloningAdvantages of cloningAnimals may_ _ of older animals.Medical cloning could _ _ for serious degenerative(变质的）_ in humans. developtheillnessesproducecuresillnesses2021/8/11 星期三15Animal clones may _ _ than the donor animalsCloning plants can _ _ of similar _ _ _ ._ _ may want to clo

12、ne themselves.Cloning plants can be _ for research on _ _ _ .There are _ _ to cloning human beings.Cloning can help save _ _ .dieyoungerproduceplantsqualityforsaleleaderusefulEvil plantspeciesmoralobjectionsendangeredanimalsnew2021/8/11 星期三16Reading IV Intensive reading (7ms )Read the letter again,

13、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 animal and blemstwo majoreffectforbidden2021/8/11 星期三17Practice discussion ( 8ms ) Choose one of

14、 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 星期三18Questions:Do you support the idea of producing human embryos(胚胎)for medical purposes?Why?Do you think it a

15、good idea to use cloned humans for organ(器官)transplants? Why?Do you think a cloned human should have human rights? Why?Do you think cloned humans will have the same talents as the original ones? Why? 2021/8/11 星期三19Assignment Surf the Internet to find more information about cloning and you are expec

16、ted to present it to your classmates in the next class.2021/8/11 星期三20Language points for reading I2021/8/11 星期三21Take a break!2021/8/11 星期三22Period 3 Learning about languageUnit 2 Cloning Period 3: 幻灯片27-48页2021/8/11 星期三23Checking answer I (2ms)Answer keys for Ex.1 on Page 13:differcast downaccumul

17、atedundertakeexactaltogether2021/8/11 星期三24Checking answer II (2ms)Answer keys for Ex.2 on Page 13:straightforward2. arbitrary3. commercial4. Are you in favour of5. procedure6. I object7. will forbid2021/8/11 星期三25Checking answer III ( 3ms )Answer keys for Ex.3 on Page 13:undertake2. controversial3.

18、 satisfaction4. Cast down5. breakthrough6. accumulate2021/8/11 星期三26Checking answer IV (2ms)Answer keys for Ex.4 on Page 14:CFDEBA2021/8/11 星期三27Checking answer V (10ms)Answer keys for Ex.2 (Translation) on Page 56(Workbook):My rabbit gave birth to four exactly identical babies several days ago.From

19、 time to time we think that humans can use cloning to bring extinct animals back to life.The plan to develop human clones is bound to raise controversial questions.Shortly after he retired, the old man wrote a novel about his childhood.2021/8/11 星期三285. She is unable to speak aloud because she has j

20、ust had an operation on her throat.6. Edward was much cast down by the news that he couldnt obtain the graduation certificate.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 (1

21、0ms)Answer keys for Ex.2 (Translation) on Page 56(Workbook):2021/8/11 星期三29Useful structure ( 20ms )the Appositive(words, phrases and clauses)2021/8/11 星期三30同位语从句与that引导的定语从句的区别：1、同位语从句与名词之间在逻辑上是“主语+be+表语”的关系。该名词是需要做特殊说明的抽象名词。例如：a) 听说他们的队赢了，他们很高兴。 _ _ .b) 消息就是他们队赢了。 _.They were delighted at the news

22、 that their team had wonThe news was that their team had won2021/8/11 星期三312、从引导词来看：引导词that在同位语从句中是连词，只起连接作用，无具体词义，that不可省略；that在定语从句中是关系代词，它在从句中充当一定成分 主语或宾语，有具体词义，作宾语时还可以省略。例如： a) The factory _ we visited yesterday is a chemical one. b) The news _ he will leave for Shanghai is true.(that)that定语从句同位

23、语从句2021/8/11 星期三323、同位语从句的简易判断方法：同位语与其先行词之间在逻辑上是“主语+be+表语”的同位语关系。所以，可以在名词从句之间加系动词be，使之构成一个新句子，如果合乎逻辑，句子通顺，则原句为同位语从句；定语从句是不能够有系表结构把先行词与从句连接起来的。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 星期三33另外，能用于名词性从句的名词有：ability, patience,

24、anxiety, answer, order, report, wish, decision, suggestion, belief, doubt, fact, hope, message, news, promise, question, reply等等。2021/8/11 星期三341. Along with the letter was his promise _ he would visit me this coming Christmas.( 2004春季上海 ) A. which B. that C. what D. whether答案B。这是一个同位语从句，解释promise的具

25、体内容，要用that引导。高考链接2021/8/11 星期三352. There is a new problem involved in the popularity of private cars _ road condition need _ .( 2003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A. that引导同位语从句说明“新问题”的内容。Need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语。2021/8/11

26、 星期三363. Theres a feeling in me _ well never know what a UFO is not ever. ( 2002年上海) A. that B. which C. of which D. what解析：答案A。同位语从句that well never know what a UFO is not ever作a feeling的同位语，解释a feeling 的具体内容。That连接同位语从句时，只起连接作用，不作从句的任何成分。2021/8/11 星期三374. Information has been put forward _ more mid

27、dle school graduates will be admitted into universities.( 2001年上海) A. while B. that C. when D. as解析：答案B。That引导从句作information的同位语，解释information的具体内容。2021/8/11 星期三385. These wild flowers are so special I would do _ I can to save them.( NMET2000春季北京) A. whatever B. that C. which D. whichever 解析：答案A。do后

28、接宾语从句，宾语从句I can 后省略了do，缺少宾语。Whatever在宾语从句中作宾语。2021/8/11 星期三39Finish 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 will do well in her exam. A. that B. this is C. it D. whats2021/8/11 星期三40 3. We shoul

29、d 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 星期三41 5. There is a rule in our school _ no one is permitted to smoke. A. where B. which C. that D. what 6. He didnt know which room _ . A

30、. they lived B. they lived in C. did they live D. did they live in2021/8/11 星期三42Assignment1. Summarize the rules of the Passive Voice.2. Finish the exercises of “Discovering useful structures” on Page 22 and 65.2021/8/11 星期三43Take a break!2021/8/11 星期三44Period 4 Reading IIUnit 2 Cloning Period 4: 幻

31、灯片49-61页2021/8/11 星期三45Warming 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 dinosaurs? If yes, do you think thats good for human beings? Why?(Students give their own answers

32、.)2021/8/11 星期三46Reading - I scanning ( 5ms )Read the text, then tell the following sentences are true or false. ( Students can discuss in pairs. )Scientists are still experimenting with cloning mammals because they think it can make money.The animals that have disappeared from the earth, like dinos

33、aurs, can be brought back to life through cloning. If we can clone any extinct animals, we should let them live in a zoo.FFF2021/8/11 星期三47Reading - II Detail reading ( 6ms )Read the text, then answer the following questions. ( Students can discuss in pairs. )Why shouldt you clone an extinct animal

34、unless there is enough diversity in the group?Why is it wrong to clone an extinct animal if it would have to live in a zoo?Why cant you clone the DNA of animals that have been extinct longer than 10,000 years?2021/8/11 星期三48Why shouldt you clone an extinct animal unless there is enough diversity in

35、the group? There will not be enough genetic variation in the group to be able to resist new illnesses.2021/8/11 星期三492. Why is it wrong to clone an extinct animal if it would have to 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

36、 habitat to develop and increase its numbers.The zoo is not a natural environment for a wild animal.2021/8/11 星期三503. Why cant you clone the DNA of animals that have been extinct longer than 10,000 years? The DNA of animals more than 10,000 years old is not suitable for cloning ,for it cant survive

37、so long.2021/8/11 星期三51Reading - 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, when discussing, the head of each group should write down the opinions of all the members.3. Ask some volunteers to show the

38、ir opinions.2021/8/11 星期三52Reading - IV Reading on 59 ( 10ms )Students read the passage on 59, then finish the following chart:Team Whats their argument?Two reasons for/against medical cloningDo you agree with them?why?A1.to _that have no cure at the momentVarious answers and reasons are possible2.

39、To help people _which make them_ For medical cloningcure serious illnesseswho havediseasesgradually lose their ability to move easily or to think2021/8/11 星期三53Team Whats their argument?Two reasons for/against medical cloningDo you agree with them?why?B1.to make the stem cells that _of one person, y

40、ou have to_ Various answers and reasons are possible2. Scientists are worried about _Against medical cloningwill cure an illnessthe efficiency of the systemkill another human being2021/8/11 星期三54Reading - IV Feeding back ( 5ms )1. Students ask some questions about the two passages learnt in this cla

41、ss.2. Ask other students to answer the questions first, then the teacher makes a conclusion. 2021/8/11 星期三55Assignment 1. Finish the exercises on workbook. 2. Prepare for the next class.2021/8/11 星期三56Take a break!2021/8/11 星期三57Period 5 Listening and SpeakingUnit 2 Cloning Period 5: 幻灯片62-71页2021/8

42、/11 星期三58Listening 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 2021/8/11 星期三59Listening II ( 10ms ) Ex.2 on Page 17.Listen to the tape for the second time and finish the following chart:cruelMarys ideas about cloningXiao Qings ide

43、as about cloing_ to animalsscientists are doing a _ jobmakes them do _May bring back _animalsit is a _ problems because _clone born _scientist need _ the speciesit may _ for illnessunnatural things“dead end”a age of “mother”weakenswonderfulextinctit is a new scienceencouragementprovide medicine2021/

44、8/11 星期三60Speaking ( 10ms ) having a discussion:1. With your partners, prepare a discussion according to the information in Ex. 3 on 18 (every member should take notes when they are preparing). 2. Have the class discussion.2021/8/11 星期三61Listening III ( 15ms ) Listening task on Page 57.1. Listen to

45、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 星期三62Listening 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 a

46、live forever and he also wants to take the chance to America for holiday when the dog is being there.2. Frank doesnt agree with cloning because he thinks cloning is very expensive and it has many moral problems.2021/8/11 星期三633. Billys mother is in favour of cloning. She is saving money to go to Ame

47、rica to have her pet dog cloning just before it dies.4. Various answers are possible.2021/8/11 星期三641.It is 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:Argume

48、nts for cloning petsArguments against cloning pets1.It is very expensive to clone a pet.2.It is selfish because it is an excuse for a holiday.3.It is selfish because it means the student can study abroad without his mother complaining.2021/8/11 星期三65Assignment1. Finish the listening task on English

49、Weekly.2. Make a conclusion of the listening and speaking skills learned in this class.2021/8/11 星期三66Take a break!2021/8/11 星期三67Period 6 WritingUnit 2 Cloning Period 6: 幻灯片72-79页2021/8/11 星期三68Making clear the writing task ( 3ms )写作任务：Give your opinion on cloning写作要求：注意记叙文的表达方式 要写明白自己的观点，层次要分明。写作建

50、议：本单元主要讲述了“cloning”存在的 问题以及人们的态度，文中可适当就此进行发挥。2021/8/11 星期三69Writing I Discussion ( 5ms )Discuss in groups and write down the information you get. After the discussion, the students write a passage according to the writing task.( There are at least 100 words. )Writing II ( 20ms )2021/8/11 星期三70Writin

51、g III ( 12ms )Checking the articles.1. Ask the students to check the articles for their partners.2. Show some articles on the screen, other students should give some advice.2021/8/11 星期三71One possible version: Together with the modernest advances in science and technology, the news that Dolly had be

52、en born was announced in 1997. However, Dollys death raised many opinions about cloning. Personally, I would like to agree that cloning may do no good to our human beings.2021/8/11 星期三72 Firstly, seeing Dolly, we may think that cloning animals can easily develop a disease. They cant live long. Secon

53、dly, we cant clone animals that have been extinct longer than 10000 years, even if the DNA of dinosaurs could survive this long. Thirdly, based on what we know now, human cloning is just a matter of time but the assumption that human clones have already been born hasnt been proved yet. In one word,

54、personally, the chances of cloning animals and cloning human beings living on the earth naturally are merely a dream.2021/8/11 星期三73AssignmentTry to correct the composition .Finish the exercises of unit 2 on English Weekly.2021/8/11 星期三74Take a break!2021/8/11 星期三75Language points for Reading IVideo

55、 dataLanguage Data Bank幻灯片80-94页2021/8/11 星期三76 1. This happens in plants when gardeners take cuttings from growing plants to make new ones, happen vi. occur by chance; take place (偶然地）发生；出现 happen to do happen to sb. It happened that happening n. 事件；偶然发生的事（常用复数）当园艺工人割草而使之长出新的植物时，就会发生这种情况，、Language

56、points for Reading I碰巧（某人）发生什么事了碰巧2021/8/11 星期三77辨析：happen, occur, take place与come about四词都有“发生”之意，但有区别。 happen 是一般用语，词义较广，强调事情发生的偶 然性; occur 用法较正式，既可以指自然发生，也可以指有意安排。take place 一般指有计划，按事先安排的进行的含义。come about 往往注重事情发生的原因，常与how 连用。注：以上四组词均为不及物动词，无被动语态。2021/8/11 星期三78Use the above words to fill the foll

57、owing blanks:1) When did the explosion _ ?2) Important elections _ this fall?3) The concert will _ next Sunday.4) How did the quarrel _ ?occurtake placecome abouthappen2021/8/11 星期三792. The nucleus of this cell contains all the genes needed to produce a new sheep.这个细胞得细胞核含有生产一只新的绵羊的必需的基因。needed to produce a new sheep 为过去分词短语作后置定语，修饰其前面的名词genes, 构成动宾搭配关系。contain v. have or hold within itself 饱含， 里面有2021/8/11 星期三80辨析：contain 与 include cont