河北省邢台市育才中学人教版高中英语选修八：UNIT 2 LISTENING AND SPEAKING 课件 .ppt

1、Listening&SpeakingIs cloning cruel?Listen and see whether you agree with Xiao Qing or Mary.1.Read these statements before listening.Tick those that you hear.Cloning will bring dead pets to life.There were 627 experiments before Dolly was successfully clone Cloning may produce medicine or even organs

2、 of a human body to cure serious illnesses.Dolly was“middle-aged”when she was born.So your grandmother would be able to start her life all over again and live to an old age.2.Listen to the tape again.Marys ideas about cloningXiao Qings ideas about cloning1 cruel to animals1 scientists are doing a wo

3、nderful job2 makes them do unnatural things2 may bring back extinct animals3 it is a“dead end”3 problems because it is a new scienceMarys ideas about cloningXiao Qings ideas about cloning4 clone born at age of“mother”4 scientists need encouragement5 weakens the species5 it may provide medicine for i

4、llnesses3.Whose ideas do you agree with?Get ready to have a class discussion.Think about the reasons for your point of view.Use your own ideas as well as those in the text.These words and phrases on page 18 may be useful for you during the discussion：Thats a good idea.I cannot accept your argument b

5、ecauseI support because No,I cant agree with becauseI agree withbecause.How can you believe that?Your argument has convinced me becauseI would like to agree with you butI dont care for your ideas because No,that is not reasonable because.Thats a great idea!Your ideas sound very encouraging to me.Lis

6、tening TextIS CLONING CRUEL?Xiao Qing and Mary Brown are discussing whether cloning is cruel to the animals.MB:Xiao Qing,do you think cloning is cruel?XQ:What do you mean by that?The scientists are doing a wonderful job and soon they may be able to bring back extinct animals or ever peoples favourit

7、e pets back to life.MB:Yes,Qing,I know.But doesnt that seem strange to you?Is it worth it?It took 276 experiments before Dolly was successfully cloned.Think of all those live cells and eggs that died in order for Dolly to be born.I dont approve of that!XQ:But Mary,be reasonable.Isnt it always like t

8、hat with a new science?This is the way you learn to do things better.Its just that this one deals with living things.MB:I suppose so but they make the animals do unnatural things.One poor cow was made to give birth to a bison.What was the poor creature to think when is saw its baby?XQ:I dont quite u

9、nderstand why so many people are against cloning.I think the scientists need a little encouragement.They have done some amazing things and think of the benefits.Producing animals that are an exact copy of the original may help medical science produce medicines or even organs for serious illnesses.MB

10、:Yes,Ive heard all that.I agree with it but I dont agree with the methods.I dont think cloning is good for animals.XQ:Why not?MB:Well,I think its a dead end.Dolly the sheep was“middle-aged”when she was born because her DNA came from a middle-aged“mother”.Cloning your grandmother would mean the new b

11、aby started life as an old lady!XQ:Are you sure?I never thought of that!MB:And it also weakens the species.Clones mean there is less variety in the species and so illnesses will become more common and the animals may die out.XQ:Oh dear!And that was just what you and I were trying to avoid.I see I sh

12、all have to look at this whole cloning question again!Listening on P541).How would you treat human clones?2).Do you think they should have legal and political rights,such as getting married or voting?3).Do you think they are separate people or part of the original donor?1.Discuss these questions.1.C

13、lare thinks human cloning will come soon.2.The clone is the same as the original donor.3.Parents who are unable to have their own children may want to buy cloned babies.2.Tick the correct ones.4.Clare believes human cloning will cause unexpected problems.5.Wang Qiao thinks it is moral to clone babie

14、s for parents who cannot have children.Answer key for Exercise 3:B C A Listening textIS HUMAN CLONING A GOOD IDEA?Wang Qiao is talking to Clare Peters about human cloning.WQ:What do you think about human cloning,Clare?CP:I dont know what to think.But I suppose itll come one of these days.I think the

15、re are many problems that nobody has thought of yet.WQ:What do you mean by that?CP:Well,a clone will be an exact copy of the original donor.Right?WQ:Yes,so what?CP:Well,whats the relationship between the clone and his original donor?WQ:I suppose they must be like one person.The clone is the same as

16、his original donor.CP:Lets suppose that you take a baby to a laboratory to be cloned.Does it matter if the laboratory returns you the real baby and one clone or two clones?WQ:Yes,it does.But how could this possible happen?CP:Well,the scientists may get confused.WQ:My goodness.Surely they would notic

17、e if there is an age-gap between the donor and the clone?CP:Maybe.What if the donor and the clone are very close in age?Let us suppose they are both babies.WQ:OK.CP:Lets suppose that the laboratory wanted to use the real baby to make more clones.Perhaps they know parents who would like to buy a clon

18、ed baby.Perhaps this family is unable to have children of their own.So the laboratory keeps the real baby and sells the clones as they grow.WQ:But thats a baby factory!Thats not moral at all!CP:I know,and thats why its important to get our ideas sorted out now.So we really have to think about the pr

19、oblems of human cloning.WQ:Yes.Now I see your point.We should do something about this.How about a meeting?What do you think?(fade out)Listening task on P57Answer key for Exercise 1:1.F 2.O3.F 4.F5.F 6.F7.F 8.O9.O 10.FListen to the tape again and answer the following questions.1.Why does Billy agree

20、with cloning?He wants to make his mother happy by keeping her pet dog alive forever and he also wants to take the chance to America for holiday when the dog is being cloned there.2.Whats Franks attitude towards cloning?Why?Frank doesnt agree with cloning because he thinks cloning is very expensive a

21、nd it has many moral problems.3.What do you think Billys mother considers about cloning?Billys mother is in favour of cloning.She is saving money to go to America to have her pet dog cloned just before it dies.4.Whats your own opinion about cloning?Various answers are possible.3.Listen again and sor

22、t out the arguments for and against cloning pets.Arguments for cloning petsArguments against cloning pets1.It is moral to make my mother happy.1.It is very expensive to clone a pet.Arguments for cloning petsArguments against cloning pets2.It can provide an excuse for a holiday abroad.3.My mother wil

23、l need her pet when I am away.2.It is selfish because it is an excuse for a holiday.3.It is selfish because it means the student can study abroad without his mother complaining.Listening taskA DISCUSSION ABOUT CLONINGBilly and Frank are having a discussion about cloning pets.BILLY:You know,Frank,I a

24、gree with cloning.My mum has a pet dog and she is devoted to her.I think if anything happened to this pet she would be so upset.So we want to keep my mother happy by keeping her pet alive forever!FRANK:Whats this all about?A little dog!Surely you can make your mother happy again in another way!Does

25、she know what people did before cloning was a possibility?BILLY:Yes,and she knows the cloning procedure.Shes read about the experiments in America.They offer chances for pets to produce their own stem cells.These stem cells will produce new pets at a very reasonable priceFRANK:Reasonable price!Surel

26、y it will be very expensive.BILLY:Well,my mother is saving money to go to America with the dog just before it dies.If she goes to the laboratory well all spend a week in America.If were lucky,well be able to return after a few months with a new dog.FRANK:Now I understand.You just want a holiday trip

27、 to America,and getting a new dog is just an excuse.BILLY:Yes and why not?FRANK:You are encouraging your mother to love her dog,so she will want to clone it when it gets old.Then you will take advantage of that to have a good holiday.Dont you think about the moral problems of cloning?BILLY:No,I dont

28、.Its fine by me if I can make my mother happy and enjoy myself as well.Thats moral too!FRANK:You know what they say about small dogs in Western countries.People keep dogs instead of having a real baby.Is that the case with your mother?BILLY:Certainly not!She has me after all.But I have to be away from her when I study abroad for my Masters degree.Shell need her small dog then!FRANK:I see.Now I know why I dont agree with cloning.BILLY:Now you know why I do.