1、Unit2 Cloning,Period 1 Reading,一株草莓依靠它沿地“爬走”的匍匐茎,一年内就能长出数百株草莓苗,A strawberry plant,The plant produces its own runners.,A stem Take cuttings from growing plants to make new ones.,They are identical in sex and appearance, who are produced from the same original egg.,Twins,They are born naturally and id
2、entical in sex and appearance.,Cloning is a way of making an exact _ of another animal or plant.,What is Cloning?,copy,What is the difference among them ?,clone,我国成功繁殖克隆兔 体形要比普通兔大许多,2002年5月中旬成功地繁殖了一只胚胎细胞克隆兔。,2002 cloning cats,克隆的荧光小猪(左)和正常小猪(右),She was c_while the others were born naturally. It is t
3、he exact copy of another sheep and the first cloned mammal.,loned,Dolly the sheep,Learning aims:,1. To grasp the main idea and more details. 2. To improve the ability to analyze the long and difficult sentences. 3. To arouse the interest in development of science and technology.,【课前预习】,I. Phrases1.
4、一直 2. 企图干某事3. 取得成功 4. 从中移除5. 准备好 6. 为提供7. 从中取出 8. 一方面，另一方面9. 沮丧 10. 适合于的,1. all the time 2. attempt to do sth 3. pay off 4. remove from 5. be ready for 6. provide sth for sb 7. take out of 8. on (the) one hand, on the other hand 9. be cast down 10. be appropriate to,11. 对有重大影响 12. 支持 13. 一定做 14. 引起反
5、对 15. 一阵 16. 开阔视野 17. 继续做 18. 实现野心 19. 不同意 20. 观点,11. have a great impact on 12. in favour of 13. be bound to 14. raise objections 15. a storm of 16. open ones eyes to 17. continue to do 18. attain ones ambitions 19. disagree with 20. point of view,1.Dolly the sheep_.A. looked exactly like the sheep
6、 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.,II. Read the passage and finish the exercises.,2. It can be inferred from the passage that a cloned animal_. A. usually li
7、ves as long as the original one B. usually lives longer than the original one C. usually lives shorter than the original one D. is usually as healthy as the original one,3. Which of the following is not an advantage of cloning? A. Cloning can be used for medical purposes. B. Large quantities of food
8、 can be produced by cloning. C. Cloning can help keep animals from becoming extinct. D. Famous persons who have passed away can be cloned.,4. The word “controversial” in para 4 probably means _.A. complicatedB. arguableC. important,the author does not state any personal opinion about cloning.,A. Obj
9、ective (be fair) B. Negative (be against it)C. Positive (be in favor of it),5. The writers attitude towards cloning,Because_,【课内探究】,I. Read the passage and number the main idea of each paragraph._ Cloning has two major uses and successful clone._ Cloning is a way of making an exact copy of another a
10、nimal and plant (definition)_ The effect of Dolly._ It is forbidden to clone human beings._ The problems of Dolly.,2,1,4,5,3,课内探究,making an exact copy,commercial,plants species,animals,straightforward,complicated,Dolly the sheep,breakthrough,normally,Seriously ill,6.5,original,objections,media,imagi
11、nation,serious illnesses,human beings,moral,forbade,themselves,accumulate,III. Important sentences. 1. But at last the determination and patience of the scientists paid off in 1996 with a breakthrough - the cloning of Dolly the sheep. 翻译: 但是决心和耐心使科学家们最终于1996 年收获了突破性的结果-克隆羊“多莉” 2. Altogether Dolly li
12、ved six and a half years, half the length of the life of the original sheep.half the length of the life of the original sheep做_翻译：多莉总共只活了六年半，这是它的原型羊寿命 的一半,同位语,3. Although at present human egg cells and embryos needed for cloning research are difficult to obtain, newspapers wrote of evil leaders hopi
13、ng to clone themselves to attain their ambitions. needed for cloning research做_，修饰_； hoping to clone themselves to attain their ambitions做_，修饰_ 翻译: 尽管目前供克隆研究的人类卵细胞和胚胎很难获得，但是报纸报道说，有些邪恶头目希望把自己克隆出来以实现他们的野心。,定语,human egg cells and embryos,定语,evil leaders,能力提升,冒死也要克隆人的法国科学家:布瓦瑟利耶,恐怖分子头目本拉登,Dabate :Are yo
14、u for or against cloning human beings,The 10-year-old girl, Kinder died in an accident in America, clone can produce an exact girl of her.,Clone can make a woman who cant get pregnant(怀孕的） have a child.,At present our country lacks organs(器官）. The cloned man can transform his organs to his original
15、one(本体),They have the same face. People are no longer special to each other.,Our cloning technology is not perfect. Some cloned babies have deformity(畸形）from birth.,Debate:What is your opinion of cloning? Are you in favor of it or against it? (谁说谁有理）,Requirements: Each group choose one opinion and try your best to give as many reasons as possible. Use your facial expressions and body language to make your debate vivid.,PK,Homework,Think about the advantages and disadvantages of cloning and write them down. Advantages :_ Disadvantages:_,Spring is coming,Thank you!,
