译林牛津版模块5 Unit 3 Science versus nature reading 课件(共34张PPT)

课件34张PPT。Science and natureScience is developing so fast than we can even think about it. solar energy（太阳能）rocket(火箭)Shenzhou vlll successfully docked with(对接) the Temple I clone (克隆)cell 细胞 Discussion Do you think the fast development of science and technology has been good for nature? Why or why not? 2. How should science and nature relate to each other? 3. Do you think that human beings should try to control nature? 4. Should we do anything against nature? Why or why not?What do you know about cloning? A clone is an animal or a plant copied from the cell of another animal or plant. The two animals or plants are exactly the same. 2. What animals have already been cloned?DiscussionDolly and its creator Ian WilmutWhat do you know about Dolly?the world’s first cloned mammal created by Scottish scientists in 1996 died in 2003 because of lung disease many countries have banned human cloning since Dolly’s birththe cloned female pigs The five little pigs’ names are Noel, Angel, Star, Joy and Mary. They were born in the USA and their organs(器官) are more suitable for transplantation(移植) into humans. It is hoped that the organs from these pigs will be used in humans’ bodies.the cloned kitten, born in 2002The kitten in the picture is called Cc. Its name is from “Copycat”. Scientists in the USA created it with a cell taken from its mother, Rainbow. It was born in December 2002.the first cloned monkey, born in 2000The name of the cloned monkey is ANDi. It is from “inserted DNA” spelt backwards. It is the first genetically modified monkey. The technology is different from that used for Dolly.Do you think the cloned animals are as healthy as the natural ones?Dolly is, but scientists do not yet know whether this is the exception(例外) or the rule. Some early evidences suggest that clones may have health problems and that they may age prematurely (早衰的，未老先衰).If you are a scientist, what do you want to clone? Why? BrainstormingFun picturesIf cloning goes wrong, what will happen?A dog or an eagle?A duck or a crocodile?A cock or a dog?A lion or a kangaroo?A frog or a crocodile?A tortoise or a bear?A bird or a dog? What do you think of the new kind of technology? Does it have advantages or disadvantages?DiscussionDo you think governments should pass laws to prohibit human cloning? Why or why not?They shouldn’t, for…reasons:Cloning can help cure many diseases and save a lot of people lives. 2. …… 3. ……Part AThey should, for…reasons:Cloning can lead to ethical(伦理) problems. 2. …… 3. …… Part BGiving an oral reportToday our class had a discussion about whether the governments should pass laws to prohibit human cloning. Some students think that the governments should, for… However, some other students think it necessary to prohibit…, for… In my opinion, …Thank you for your attention!Homework Find more information about clone. 2. Review the new words.Thank you！