Book8_Unit_2_Cloning-Reading 上课用（课堂PPT）

1、111. 对对有重大影响有重大影响 12. 支持支持13. 一定做一定做14. 引起反对引起反对15. 一阵一阵 16. 开阔视野开阔视野17. 继续做继续做18. 实现野心实现野心19. 不同意不同意20. 观点观点I. Phrases 1. 一直一直 2. 企图干某事企图干某事 3. 取得成功取得成功 4. 从从中移除中移除 5. 准备好准备好 6. 为为提供提供 7. 从从中取出中取出 8. 一方面，另一方面一方面，另一方面 9. 沮丧沮丧 10. 适合于适合于的的【课前预习课前预习】2【课前预习课前预习】I. Phrases 1. 一直一直 2. 企图干某事企图干某事 3. 取得成功取

2、得成功 4. 从从中移除中移除 5. 准备好准备好 6. 为为提供提供 7. 从从中取出中取出 8. 一方面，另一方面一方面，另一方面 9. 沮丧沮丧 10. 适合于适合于的的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 311. 对对有重大影响有重大影响

3、12. 支持支持13. 一定做一定做14. 引起反对引起反对15. 一阵一阵 16. 开阔视野开阔视野17. 继续做继续做18. 实现野心实现野心19. 不同意不同意20. 观点观点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 4Important

4、 sentences:1. Cloning plants is straightforward while cloning animals is very complicated.2. But at last the determination and patience of scientists paid off in 1996 with a breakthrough.3.Cloning scientists were cast down to find that Dolly illnesses were more appropriate to a much older animal.54.

5、On the other hand, Dollys appearance raised a storm of objections and had a great impact on the media and public imagination.5.It suddenly opened everybodys eyes to the possibility of using cloning to cure serious illnesses and even to produce human beings.6.Although at present human egg cells and e

6、mbryos needed for cloning research are difficult to obtain.7.However, scientists still wonder whether cloning will help us or harm us and where it is leading us.67 Unit 2 cloning 8Which ones are natural clones?Which ones are man-made? How do they differ.Warming up9A strawberry plant10Growing new pla

7、ntsman-made clone11Natural clone is one that occurs in a natural form of cloning without human help. Man-made clone is one that is produced through human intervention(介入介入) .12Dolly the sheepShe was cloned while the others were born naturally. In other word, Dolly was a _ sheep.clonedHow does Dolly

8、differ from other sheep?man-made clone13Pre-reading add your questions to the listQuestion list about cloning What is a clone? How is a clone produced ? What benefits can humans gain from cloning? What problems may arise when humans are cloned? 5. 6. 14CLONING: WHERE IS IT LEADING US?Predict: What q

9、uestions about clone might be found in this passage? 15【课内探究课内探究】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 animal and plant (definition) _ The effect of Dolly. _ It is forbi

10、dden to clone human beings. _ The problems of Dolly.2145316DefinitionIt is a way of _ of another animal and plant.2 major uses of cloning1)To produce _ 2)It is valuable for research on new _and medical research on _.Cloning procedureCloning plants is_while cloning of animals is _The first successful

11、 animal clone The first successful animal clone：The cloning of_, a _ in cloning technique.making an exact copycommercialplants speciesanimalsstraightforwardcomplicatedDolly the sheepbreakthrough17The problems of Dolly the sheepEncouraging news :It seemed to develop _Disturbing news: Dolly has become

12、_It lived for _ years, half the length of the life of the _ sheep.The effect of Dolly the sheepIts appearance raised a storm of _and had a great impact on the _ and public_. It opened everybodys eyes to the possibility of using cloning to cure _and even produce _.normallySeriously ill6.5originalobje

13、ctionsmediaimaginationserious illnesseshuman beings18arguments on cloning Evil leaders hope to clone _. Religious leaders raised _ questions. Many governments _ research into human cloning. Some countries continued to _evidence of the abundant medical aid.moralforbadethemselvesaccumulate19The main i

14、dea of the text is_ A. animal cloning is very valuable and can benefit the world. B. animal cloning could be misused by bad people so it must be forbidden C. animal cloning is well developed because Dolly the sheep was born. D. animal cloning raised arguments and scientists are not sure about its fu

15、ture.main idea202. In the second paragraph, the word “straightforward” means _.A. uncomplicated B. honest C. frank D.difficult213. Which of the follow is NOT a problem or danger of cloning according to the text?Cloned Bin Ladens would do harm to the world.B. Animal clones may develop the illness of

16、older animals and may die younger than the donor animals.C. There are moral objections to cloning human beings.D. Too much cloning may lead to the destruction of the balance of nature.22 4. We can infer from the last three paragraphs that _. The normal development of Dolly had no effect on the cloni

17、ng of other species.B. Dollys serious disease and final death disturbed the whole world.C. Dolly successfully cloned a new lamb with the help of cloning scientists.D. There were arguments about animal cloning and concerns about the future of cloning.23 5. The word “controversial” in para 4 probably

18、means _. A. complicated B. arguable C. important24 the author does not state any personal opinion about cloning. A. Objective (be fair) B. Negative (be against it) C. Positive (be in favor of it)The writers attitude towards cloningBecause_25克隆羊诞生图示克隆羊诞生图示2627The important events in animal cloning hi

19、story28In 1952 tadpole(蝌蚪）蝌蚪） was cloned . It is the first animal to be cloned29In 1963 , an Asian carp(鲤鱼）鲤鱼） was cloned . Ten years later, a Chinese scientist named Tong dizhou cloned a European carp.301978年7月25日,世界上第一个试管婴儿路易丝布朗在英国出生 31路易丝布朗现已36岁 32In 1996, a sheep called Dolley was born. It is th

20、e first mammal to be cloned. It is considered to be the greatest success in the development of cloning.33A macaque （猕（猕猴）猴）was cloned in 2000. Later scientists cloned many monkeys . 34 2000年人类近亲被克隆美国俄勒冈的研究者用与克隆多利羊截然不同的方法克隆出猴子Tetra 35Mules (骡子） have no ability to give birth to a baby. A mule was clon

21、ed in 2003. It is the first animal which lack fecundity (生育能力）to be cloned.36 2001年克隆人被提上日程37Practice: Retell the procedure of cloning Dolly the sheep? 38 1. The fact is that they are both examples of natural clones.2. The questions that concerned all scientists were: “Would this be a major difficul

22、ty for all cloned animals?”3. It suddenly opened everybodys eyes to the possibility of using cloning to cure serious illnesses, and even producing human beings.4. Although at present human egg cells and embryos needed for cloning research are difficult to obtain, newspapers wrote of evil leaders hop

23、ing to clone themselves to attain their ambitions. understand the sentences :Predicative clauseAttributive clause39Practice discussion ( 8ms )Practice discussion ( 8ms ) Choose one of the following questions to discuss in groups. The leader of each group should write down every members opinion, then

24、 the volunteers will show your group work to the whole class:40Questions:Do you support the idea of producing human embryos(胚胎胚胎)for medical purposes?Why?Do you think it a good idea to use cloned humans for organ(器官器官)transplants? Why?1. Do you think a cloned human should have human rights? Why?41Ho

25、mework1. 创新作业本创新作业本 period I2. Finish Ex.1,2,3, Page12.42我国成功繁殖克隆兔我国成功繁殖克隆兔 体形要比普通兔大许多体形要比普通兔大许多2002年年5月月中旬成功地中旬成功地繁殖了一只繁殖了一只胚胎细胞克胚胎细胞克隆兔。隆兔。43第一只克隆宠物猫第一只克隆宠物猫克隆马及其克隆马及其“母母亲兼姐姐亲兼姐姐”442002年年4月十六月十六日美国第一头日美国第一头克隆牛克隆牛“艾米艾米”产下牛犊喜作产下牛犊喜作妈咪妈咪45克隆的荧光小猪克隆的荧光小猪(左左)和正常小猪和正常小猪(右右)46A strawberry plantA strawber

26、ry plantThe new plants that grow from the runners are exact copies of the original plant.47富贵竹插枝即活富贵竹插枝即活Lucky bamboo The gardener should cut the plant ,then the cutting produce another new plant.48TwinsTwinsThey are born naturally and identical in sex and appearance.49Dabate :Are you for or against cloning human beingsThe 10-year-old girl, Kinder died in an accident in America, clone can produce an exact girl of her.50Clone can make a woman who cant get pregnant(怀孕怀孕的）的） have a child.51At present our country lacks organs(器官）器官）. The cloned man