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1、人教課標(biāo)人教課標(biāo) 高二高二 選修選修 8Unit 21. Do you know anything about dinosaurs? 2. Have you ever seen the film Jurassic Park?Enjoy some pictures about dinosaurs. 暴龍暴龍tyrannosaurus劍龍劍龍 stegosaurs角龍角龍 ceratopsids翼龍翼龍pterodactyl雷龍雷龍 brontosaurusDoes the author believe the dinosaurs can be cloned? The writer of the
2、text _. A. is excited by the possibility of cloning fierce and extinct animals B. believes that extinct animals can be brought back to life by cloningC. thinks it impossible or unsuitable to clone extinct animals like dinosaurs D. dreams of dinosaurs returning to the earthAnswer the following questi
3、ons:1. Why shouldnt you clone an extinct animal if there isnt enough diversity in the group? There will not be enough geneticvariation in the group to be able to resist new illnesses. 2. Why is it wrong to clone an extinct animal if it would live in a zoo? It is not a good idea to clone an animal th
4、at would 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.1. The film Jurassic Park is popular because _. A. people are interested in the subject of cloning B. all the actors are dinosaurs C. it was directe
5、d by a scientist who clones dinosaurs D. it proves very interestingChoose the best answers. A2. Which of the following is true? _A. Mice were cloned in 1981.B. Dolly the sheep was the first cloned animal.C. The name of the cloned cow is “Bison”D. China was successful in cloning mammals.3. The reason
6、s why a group of cloned animals all die of the same illness do NOT include _. A. they have the same arrangement of genes B. there isnt enough diversity in the group for it to overcome illnesses C. the illness is a new one D. their arrangement of genes can not resist that new diseaseFill in the blank
7、s according to the text.People interested inNot only film makers but also _._ for its impossibility Perfect DNA is needed. There is not enough _ in the group. A(n) _ would be needed for the cloned extinct animals.ordinary peopleReasonsdiversitysuitable habitat_The chance of dinosaurs returning to th
8、e earth is _.merely a dreamConclusion We can infer from the text that _. A. scientists are experimenting to clone dinosaursB. dinosaurs will never return to the earthC. cloned animals will only live in the zooD. the DNA of dinosaurs can only survive 10000 yearTrue or false according to the text. 1.
9、Scientists are still experimenting with cloning mammals because 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.FFFOthers will surviv
10、e and pass on the ability to resist that disease to the next generation.其他的將存活下來并傳遞其后代抵抗其他的將存活下來并傳遞其后代抵抗這種病的能力。這種病的能力。 resist詞義詞義 vt. 抵制抵制, 抵抗抵抗派生詞派生詞 resistance n. 抵抗抵抗, 反抗反抗; 抗性抗性; 抵抵 抗力抗力; 耐性耐性resistant adj. 抵抗的抵抗的; 防防的;抗的;抗的的resister n. 抵抗者抵抗者resistibility n. 可抵抗性;抵抗力可抵抗性;抵抗力常用搭配常用搭配 resist sth.
11、 /doing sth. 抵制某事抵制某事/做某事做某事cant resist sth./ doing sth. 禁不住某事禁不住某事/做某事做某事resist the enemy/ temptation 抵抗敵人抵抗敵人/抵制誘惑抵制誘惑 根據(jù)漢字提示完成句子。根據(jù)漢字提示完成句子。(1) We are determined to stay and _ (抵抗敵人抵抗敵人).(2) Tom _ (忍不忍不住開玩笑住開玩笑) about his strange hairstyle.(3) Quite a few people in power _ _ (抵制不住金抵制不住金錢的誘惑錢的誘惑)
12、and disobey the law. cant resist the temptation of moneyresist the enemycouldnt resist playing jokes( ) Although a teenager, Peter resisted _ what to do and what not to do.A. telling B. being toldC. to tell D. to be told【解析】【解析】B 考查考查resist的用法。的用法。resist doing sth. 抵制做某事抵制做某事, 且主語且主語Peter 和和tell之間是被
13、動(dòng)關(guān)系之間是被動(dòng)關(guān)系, 故故B正確。正確。B1. The popularity of films such as Jurassic Park, in which a scientist clones several kinds of extinct dinosaurs, proves how the idea struck a mixture of fear and excitement into peoples hearts. 在在侏羅紀(jì)公園侏羅紀(jì)公園這部電影中這部電影中, 有一有一位科學(xué)家克隆了好幾種不同的絕種恐龍。位科學(xué)家克隆了好幾種不同的絕種恐龍。類似這樣的電影很受歡迎類似這樣的電影很
14、受歡迎, 證明了這一證明了這一想法使人們感到既興奮又恐懼。想法使人們感到既興奮又恐懼。 in which引導(dǎo)定語從句引導(dǎo)定語從句, how引導(dǎo)賓語引導(dǎo)賓語從句。從句。 2. From time to time people suggest that extinct animals like dinosaurs, can possibly be brought back to life through cloning. 人們時(shí)常設(shè)想滅絕的動(dòng)物人們時(shí)常設(shè)想滅絕的動(dòng)物, 例如恐龍例如恐龍,有可能通過克隆技術(shù)使它們復(fù)活。有可能通過克隆技術(shù)使它們復(fù)活。 from time to time有時(shí)有時(shí), 間或
15、間或, 偶爾偶爾,= occasionally, now and then。3. Diversity in a group means having animals with their genes arranged in different ways. 群中的多樣性指的是擁有基因排列方群中的多樣性指的是擁有基因排列方式不同的動(dòng)物。式不同的動(dòng)物。 with their genes arranged in different ways作定語作定語, in different ways以不同以不同的方式。的方式。base on/upon 以以為基礎(chǔ)為基礎(chǔ), 依據(jù)依據(jù)其結(jié)構(gòu)為其結(jié)構(gòu)為: base s
16、th. on/upon sth. is based on/upon4. Based on what we know now, you cannot clone animals that have been extinct longer than 10000 years. 據(jù)我們現(xiàn)在所知據(jù)我們現(xiàn)在所知, 絕種一萬年以上的絕種一萬年以上的動(dòng)物不能克隆。動(dòng)物不能克隆。Choose the right answer.1. proves how the idea struck a mixture of fear and excitement into peoples hearts.A. have sth
17、. on the brain B. confusedC. droved people crazy D. scared 2. People suggest that extinct animals like dinosaurs, can possibly be brought back to life. A. kept up B. resist C. live on D. relived 3. The initial requirement is that you need perfect DNA. A. most thankful B. most pressing C. most diffic
18、ult D. most needed4. All efforts of cloning an animal will be in vain if there is not enough diversity A. go to west B. useless C. helpless D. meaningless5. Others will survive and pass on the ability to resist that disease to the next generation. A. oppose B. slide C. hire D. indicate6. So the chan
19、ce of dinosaurs ever returning to the earth is merely a dream. A. only B. surely C. abruptly D. miserably May the best animal win! Which extinct animals are worth restoring by means of cloning? Look at the table on page 16 and look for some information on the internet to help you and choose one of t
20、hem to talk with your partner.Animal testing, also known as animal experimentation or animal research, is the use of non-human animals in experiments. Pre-listeningIs cloning with animals cruel? Think of your point of view and talk with your partner. Xiao Qing and Rachel are discussing whether cloni
21、ng is cruel to animals or not. Listen and see whether you agree with Xiao Qing or Rachel.1. Read these statements before listening. Tick those that you hear. Cloning will bring dead pets to life. There were 627 experiments before Dolly was successfully cloned. Cloning may help cure serious illnesses
22、. Its a dead end. Dolly the sheep was “middle-aged” when she was born. So your grandmother would be able to start her life all over again and live much longer.2. Listen to the tape again and fill in the chart. Rachels ideas about cloningXiao Qings ideas about cloning1 cruel to animals 1 scientists a
23、re doing a wonderful job2 makes the animals do unnatural things 2 may bring peoples favourite pets back to lifeMarys ideas about cloningXiao Qings ideas about cloning4 weakens the species4 it may provide cures for serious illnesses3 it is a “dead end”3 problems because it is a new science3. Whose id
24、eas do you agree 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. XIAO: I agree with animals cloning. I think we must be safe so animals are needed to test things first.LEI: No, I cant agree with that because animals are alive too. Dont they deserve a good life?DAVE: I agree with XIAO because we w
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