cloning課件7

1、Using Language,resist merely decoration unable zebra,vt. 抵抗；對(duì)抗 adv. 僅；只；不過(guò) n. 裝飾 adj. 不能的；不會(huì)的 n. 斑馬,argument aloud reasonable obtain,n. 論據(jù)；論點(diǎn)；爭(zhēng)論 adv. 大聲地；出聲地adj. 合情理的；講道理 的；公道的vt. 獲得；得到,from time

2、to time bring back to life pay off,不時(shí)；偶爾使復(fù)生取得好結(jié)果；取得成功； 賠清,克隆的進(jìn)展,蛙: 1962年，未成功 綿羊: 1996年，多利（Dolly） 獼猴: 2000年1月，Tetra，雌性 豬: 2000年3月，5只蘇格蘭PPL小豬牛: 2001年，Alpha和Beta，雄性 貓: 2001年底，CopyCat (CC), 雌性,小鼠: 2002年 兔: 2003年3-

3、4月分別在法國(guó)和朝鮮獨(dú) 立地實(shí)現(xiàn)； 騾: 2003年5月，愛達(dá)荷Gem，雄性； 6月，猶他先鋒，雄性 鹿: 2003年，Dewey 馬: 2003年，Prometea，雌性 狗: 2005年，韓國(guó)首爾大學(xué)，史納比,Please enjoy some pictures about dinosaurs.,霸王龍,劍龍stegosaurs,角龍 ceratopsids,雷龍 brontosaurus,翼龍pte

4、rodactyl,Reading THE RETURN OF THE DINOSAURS?,1. The writer of the text_____ A. is excited by the possibility of cloning fierce and extinct animals B. be

5、lieves that extinct animals can be brought back to life by cloning,Read the passage and then choose the correct answers to the below questions.,C. thinks it impossible or unsuitable to clone extinct animals like dinosau

6、rs D. dreams of dinosaurs returning to the earth,2. The film Jurassic Park is popular because_____. people are interested in the subject of cloning B.

7、all the actors are dinosaursC. it was directed by a scientist who clones dinosaursD. it proves very interesting,3.Which of the following is true?____Mice were cloned in 1981.B. Dolly the sheep was the first cloned an

8、imal.C. The name of the cloned cow is “Bison”D. China was successful in cloning mammals.,4. The reasons why a group of cloned animals all die of the same illness do NOT include____.

9、 A. they have the same arrangement of genes B. there isn’t enough diversity in the group for it to overcome illnesses C. the illness is

10、a new one D. their arrangement of genes can not resist that new disease,5. We can infer from the text that____ A. scientists are experimenting to clone dinosaursB. dinosaurs will never return to the ea

11、rthC. cloned animals will only live in the zooD. the DNA of dinosaurs can only survive 10 000 year,Read the passage again and answer the questions. 1.Why shouldn't you clone an extinct animal unless th

12、ere is enough diversity in the group?,There will not be enough genetic variation in the group to be able to resist new illnesses.,2. Why is it wrong to clone an extinct animal if it would have to live in a zoo?,

13、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.,3. Why can't

14、 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 can't survive so long.,Discussion,May the best animal w

15、in! Now in pairs discuss which extinct animals described below are worth restoring by means of cloning. Choose one and use the information to help you argue why this animal should be restored to the earth.,Auroch

16、 (1627),Large wild cattle; long horns and hair; hair good for making into clothes; horn can be used for decoration; need grasslands.,Dodo bird (1755),Unable to fly; friendly and not harmful; large eggs and tasty meat tha

17、t could be developed for food; needs hot climate.,Great Auk (1844),Very large bird that cannot fly；lives by and in the sea; feathers do not absorb water; useful for protecting clothes from water.,Quagga (1883),Skin looks

18、 like a zebra; can be used for decoration; meat very tasty; needs warm climate.,Language points,1. From time to time people suggest that the animals that have disappeared from the earth, like dinosaurs, can possibly be b

19、rought back to life through cloning. 人們時(shí)常設(shè)想從地球上消失的動(dòng)物,例如恐龍,有可能通過(guò)克隆技術(shù)使它們復(fù)活。,from time to time 有時(shí),間或,偶爾,= occasionally , now and then.He comes here from time to time.

20、他時(shí)常到這兒來(lái)。 The car manufacturers changed the car models from time to time. 汽車制造商不時(shí)地改變車的型號(hào)。,,將下列句子譯成英語(yǔ)(1) 他有時(shí)變得很沒(méi)有道理。 ________________________________ ____________(2) 他們有時(shí)吵架。 ________

21、____________________,He becomes quite unreasonable from,They quarrel from time to time.,time to time.,,bring back to life 使復(fù)生They used artificial respiration to bring the swimmer back to life.他們用人工呼吸使游泳者蘇醒過(guò)來(lái)。Anyway h

22、e was dead , we could not bringhim back to life.橫豎他死了，我們不能使他復(fù)生。,bring back to health    恢復(fù)健康,2. ...but others will survive and pass on the ability to resist that disease to their children.

23、 ......其他的將存活下來(lái)并傳遞給其后代抵抗這種病的能力。,resist 作及物動(dòng)詞主要有三個(gè)義項(xiàng): 抵抗, 對(duì)抗; 抵擋, 防止; (與cannot, could not連用) 無(wú)法抗拒, 無(wú)法抵擋。,They resisted the attack.他們抵抗那次攻擊。She resisted being carried off.她拒絕

24、被帶走。She could not resist the temptation.她無(wú)法抗拒那項(xiàng)誘惑。,1. The popularity of the film Jurassic Park, in which a scientist clones several different kinds of extinct dinosaurs, proves how interested ordinary people are in the

25、 subject.,長(zhǎng)難句分析,電影《侏羅紀(jì)公園》的歡迎證實(shí)了普通人對(duì)這一話題是多么感興趣,在該電影中一位科學(xué)家克隆了幾種不同的恐龍。 in which引導(dǎo)定語(yǔ)從句, how引導(dǎo)賓語(yǔ)從句。,2. It is useless to clone an animal if there is not enough diversity in the group for it to overcome illnesses.

26、 該群中如果沒(méi)有足夠的多樣性使它克服疾病,克隆動(dòng)物就沒(méi)有用。,當(dāng)動(dòng)詞不定式、動(dòng)名詞或從句作主語(yǔ)時(shí), 通常把它們放在謂語(yǔ)之后,而用it作句子的形式主語(yǔ)。,3. Diversity in a group means having animals with their genes ar

27、ranged in different ways. 群中的多樣性指的是擁有基因排列方式不同的動(dòng)物。 with their genes arranged in different ways作定語(yǔ),in different ways 以不同的方式。,Listening and Speaking,Is cloning cruel? Listen an

28、d see whether you agree with Xiao Qing or Mary. 1. Read these statements before listening. Tick those that you hear. ① Cloning will bring dead pets to life. ② There were 627 experiments before

29、 Dolly was successfully clone.,③ Cloning may produce medicine or even organs of a human body to cure serious illnesses.④ Dolly was “middle-aged” when she was born.⑤ So your grandmother would be able to start he

30、r life all over again and live to an old age.,2. Listen to the tape again and then work with a partner to fill in the chart.,1 cruel to animals,1 scientists are doing a wonderful job,2 makes them do unnatural things,2 ma

31、y bring back extinct animals,3 it is a “dead end”,3 problems because it is a new science,4 clone born at age of “mother”,4 scientists need encouragement,5 weakens the species,5 it may provide medicine for illnesses,Liste

32、ning Text,IS CLONING CRUEL?Xiao Qing and Mary Brown are discussing whether cloning is cruel to the animals.MB: Xiao Qing, do you think cloning is cruel?,XQ: What do you mean by that? The scientists are doing

33、a wonderful job and soon they may be able to bring back extinct animals or even people’s favourite pets back to life. MB: Yes, Qing, I know. But doesn’t that seem strange to you? Is it worth it? It took 276 experiment

34、s before,Dolly was successfully cloned. Think of all those live cells and eggs that died in order for Dolly to be born. I don’t approve of that! XQ: But Mary, be reasonable. Isn’t it always like that with a new scienc

35、e? This is the way you learn to do,things better. It’s just that this one deals with living things. MB: I suppose so — but they make the animals do unnatural things. One poor cow was made to give birth to a bison. Wha

36、t was the poor creature to think when is saw its baby?,XQ: I don’t quite understand why so many people are against cloning. I think the scientists need a little encouragement. They have done some amazing things and think

37、 of the benefits. Producing animals that are an exact copy of the original may help medical science produce,medicines or even organs for serious illnesses. MB: Yes, I’ve heard all that. I agree with it but I don’t agr

38、ee with the methods. I don’t think cloning is good for the animals. XQ: Why not?,MB: Well, I think it’s a dead end. Dolly the sheep was “middle-aged” when she was born because her DNA came from a middle-aged “mother”.

39、 Cloning your grandmother would mean the new baby started life as an old lady!,XQ: Are you sure? I never thought of that! MB: And it also weakens the species. Clones mean there is less variety in the species and so il

40、lnesses will become more common and the animals may die out.,XQ: Oh dear! And that was just what you and I were trying to avoid. I see I shall have to look at this whole cloning question again!,,Whose ideas do you agree

41、with?Get ready to have a class discussion. Think about the reasons for your point of view. Use your own ideas as well as those in the text. These words and phrases on page 18 may be useful for you during the discussion：

42、,Discussion,That’s a good idea. I cannot accept your argument because…I support… because… No, I can’t agree with… because…I agree with…because…. How can you believe that?,Your argument has convinced me beca