人教版高中英语课件：Top10 inventions in 20th century.ppt

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1、cloning,Reading,Top10 inventions in 20th century:,guess what,NO.10,atomic bomb,NO.9,space shuttle,NO.8,television,NO.7,artificial satellite,NO.6,aspirin,Airliner,NO.5,NO.4,personal computer,NO.3,Mobilephone,NO.2,internet,谢谢光临指导,NO.1,cloning,How much do you know about cloning?,Cloning is a way of mak

2、ing an exact copy of another animal and plant.,What is cloning?,It happens both in _ and in_.They can be cloned by _ and _.,plants,animals,themselves,humans,Natural clone,Man-made clone,The definition of cloning,Step one:fast reading Organization _ The birth and death of Dolly._ Controversy brought

3、by Dolly._ What is cloning._Two major uses of cloning.,4-5,1,2,3,scanning,1.How do gardeners clone plants?,Find out theanswers in the text.,Para1,scanning,1.What two major uses do cloning have?2.How many female sheep participate in the cloning of a new sheep?,Find out theanswers in the text.,Para2,3

4、,scanning,What problems do Dolly have?,Find out theanswers in the text.,Para3,She became seriously ill and her illnesses were more appropriateto a much older animal.Dolly lived for six years,half the length of the life of the original sheep.,The word“controversial”in para 4 probably means _.A.compli

5、cated B.arguable C.important,Para 4,The impact of Dolly,True or false:1 People feared that Cloned Hitlers would do harm to the world.2 All the research into human beings will be forbidden.3 Some countries will use cloning in a wise way.,Para 5,Peoples reaction to cloning,Many governments forbade res

6、earch reserch into human beings.,The main idea 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

7、 scientists are not sure about its future.,Choose the right answer according to the text.,2.The cloning of Dolly the sheep succeeded because_.A.its easier to clone a sheep than other animals B.the scientists were determined and worked hard with patienceC.the scientists were rewarded and got lots of

8、moneyD.many other attempts to clone mammals failed,Reading in detail-(5ms),3.The sheep that donated the somatic cell most probably lived _ years.A.3 B.6 C.9 D.12,推理判断,4.We can infer from the last three paragraphs that _.The normal development of Dolly had no effect on the cloning of other species.B.

9、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 animals about animal cloning and concerns about the future of cloning.,The main idea of the text is_ A.animal cloning is very valua

10、ble 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 future.,Reading II(5ms),Choose the right answer according

11、to the text.,2.The cloning of Dolly the sheep succeeded because_.A.its easier to clone a sheep than other animals B.the scientists were determined and worked hard with patienceC.the scientists were rewarded and got lots of moneyD.many other attempts to clone mammals failed,3.The sheep that donated t

12、he somatic cell most probably lived _ years.A.3 B.6 C.9 D.12,推理判断,4.We can infer from the last three paragraphs that _.The normal development of Dolly had no effect on the cloning of other species.B.Dollys serious disease and final death disturbed the whole world.C.Dolly successfully cloned a new la

13、mb with the help of cloning scientists.D.There were arguments about animals about animal cloning and concerns about the future of cloning.,Challenge yourself,1.In the second paragraph,the word“straightforward”means _.A.uncomplicated B.honest C.frank D.difficult2.It suddenly opened everybodys eyes to

14、 the possibility of using cloning to cure serious illness and even to produce human beings.(translation)3.In an unfortunate way,the mice and Dolly sheep had no choice but to die young.No one imagined that this would happen and so no one could prevent it.(Find a sentence which has the similar meaning

15、),因为它突然打开了人们的眼界，看到了有可能利用克隆技术来治疗重病，甚至还有可能克隆出人类。,Sadly the same arbitrary fate affectedother species,such as cloned mice.,4,What is the writing style?A.Expositive（说明性的）B.Descriptive（描写性的）C.Argumentative（议论性的）D.Narrative,Consolidation,Clone is a way of making an exact_ of another animal or plant.Clonin

16、g have two _ uses.Firstly,gardeners use it all the time to produce _quantities.Secondly,it is valuable for research on new plant _and for medical research on animals.But through the _and death of Dolly,cloning has a lot of problems.On the other hand,we know cloning is controversial in some countries for _and _reasons.,copy,major,commercial,species,birth,moral,religious,HomeworkRead the passage again and find out all the noun clauses in the text.Write a short passage according to the following topic.Should human cloning be allowed?3.Retell the procedure of the Dolly the sheep.,