人教新课标英语选修八课件:Unit2 Using language
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1、Unit 2 Cloning,1. Do you know anything about dinosaurs? 2. Have you ever seen the film Jurassic Park?,The return of the dinosaurs?,Warming up,Enjoy some pictures about dinosaurs.,暴龙 tyrannosaurus,剑龙 stegosaurs,角龙 ceratopsids,翼龙 pterodactyl,雷龙 brontosaurus,Does the author believe the dinosaurs can be
2、 cloned?,Skimming,The writer of the 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 cloning C. thinks it impossible or unsuitable to clone extinct animals like dinosaurs D. dreams of dinosaurs returning to
3、 the earth,Answer the following questions:,Detailed reading,1. Why shouldnt you clone an extinct animal if there isnt 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 l
4、ive in a zoo?,It is not a good idea to clone an animal that 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
5、 cloning B. all the actors are dinosaursC. it was directed by a scientist who clones dinosaursD. it proves very interesting,Choose the best answers.,A,2. Which of the following is true? _ Mice were cloned in 1981. B. Dolly the sheep was the first cloned animal. C. The name of the cloned cow is “Biso
6、n” D. China was successful in cloning mammals.,3. The reasons 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 illnessesC. the illness is a new oneD. their arrangement
7、 of genes can not resist that new disease,Fill in the blanks according to the text.,ordinary people,Reasons,diversity,suitable habitat,merely a dream,Conclusion,We can infer from the text that _. A. scientists are experimenting to clone dinosaurs B. dinosaurs will never return to the earth C. cloned
8、 animals will only live in the zoo D. the DNA of dinosaurs can only survive 10000 year,Post-reading,True or false according to the text.,Scientists are still experimenting with cloning mammals because they think it can make money. The animals that have disappeared from the earth, like dinosaurs, can
9、 be brought back to life through cloning. If we can clone any extinct animals, we should let them live in a zoo.,F,F,F,Others will survive and pass on the ability to resist that disease to the next generation. 其他的将存活下来并传递其后代抵抗 这种病的能力。,单词讲解,resist 词义 vt. 抵制, 抵抗 派生词 resistance n. 抵抗, 反抗; 抗性; 抵抗力; 耐性 r
10、esistant adj. 抵抗的; 防的;抗的 resister n. 抵抗者 resistibility n. 可抵抗性;抵抗力,常用搭配 resist sth. /doing sth. 抵制某事/做某事 cant resist sth./ doing sth. 禁不住某事/做某事 resist the enemy/ temptation 抵抗敌人/抵制诱惑,根据汉字提示完成句子。 (1) We are determined to stay and _ (抵抗敌人). (2) Tom _ (忍不住开玩笑) about his strange hairstyle. (3) Quite a f
11、ew people in power _ _ (抵制不住金钱的诱惑) and disobey the law.,cant resist the temptation of money,resist the enemy,couldnt 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】B 考查resist的用法。resist doing sth. 抵制做某事
12、, 且主语Peter 和tell之间是被动关系, 故B正确。,B,1. 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.,长难句分析,在侏罗纪公园这部电影中, 有一位科学家克隆了好几种不同的绝种恐龙。类似这样的电影很受欢迎, 证明了这一想法使人们感到既兴奋又恐惧。i
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