外研版高中英语Book6 Module5 Period2 listening and vocabulary(共24张PPT).ppt

1、Module 5Cloning Listening and vocabularyThey all have the same .genesClone:to make an exact copy of a plant or animal using artificial(人工地)way.1.Who do we get our genes from?2.How many parents does a cloned animal have?3.Where are cloned animals created?Our parents.One.In a laboratory.4.In what way

2、are Sheep A and Sheep B identical?They both have identical genes.identical the same or exactly alikebe identical to.Your Argument About Cloning:Are you for cloning?ORAre you against cloning?Activity 3 on P61:Say which of the arguments below are for cloning and which are against cloning.Write F(for)f

3、or A(against)1.Cloning is against nature._.2.Cloning will be beneficial to humans.For example,if a couple cant have children,cloning could help give them a child._3.Cloned animals get ill and die quite young._4.People are afraid that scientists will create thousands of copies of the same person._5.C

4、loning is dangerous because scientists may create monsters by mistake._6.We could use cloning to cure illness._AFAAAFWhile-listeningListen to a radio discussion about cloning and correct the information in Activity 5 on P62.Listen and correct the wrong information.1.Dr Hugh Donaville works for a com

5、pany that has already cloned a number of people.2.A sheep called Dolly was cloned in 1998.3.Dolly the sheep died in 2003.4.Donaville thinks scientists treated Dolly the sheep as a product.5.Donaville says that if a child is very ill,scientists could clone it.6.Donaville thinks its a good idea to hav

6、e thousands of copies of the same person.7.Donaville says that we could clone animals that have become extinct.animals1997The presenterdiesterribleare becomingWhile-listeningConsolidationFill in the chart with the right information from the passage.beneficial helping coupleidentical family society e

7、xtinctbecoming get ill young wrongagainstthings products copiesListen to the tape and fill in the blanks.Presenter:Our topic for this week is cloning.To discuss it,we have with us Dr Hugh Donaville,head of a company that has already _ a number of animals.Hugh Donaville:Good morning.Presenter:Dr Dona

8、ville,could you begin with a simple _of cloning?Hugh Donaville:Certainly.Cloned animals are created in a laboratory.They take all their _ from a single parent.clonedexplanationgenesPresenter:So cloned animals come from.Hugh Donaville:Precisely.Presenter:How successful has cloning been so far?Hugh Do

9、naville:Well,as most people know,in 1997 scientists cloned a sheep called Dolly.Since then,scientists have cloned animals such as pigs and cats.one parent onlyPresenter:You make cloning _easy.Hugh Donaville:Do I?I wish it was.If it was easy,Id be a very rich man by now.Presenter:So what are the diff

10、iculties?Presenter:_,cloned animals get ill and die quite young.For example,Dolly the sheep died in 2003.She should have lived longer.Presenter:Why do they get ill?Hugh Donaville:Weve got a few ideas but we dont really understand why yet.soundUnfortunately Presenter:I see.Now obviously,Dr Donaville,

11、you believe that cloning will be _ to human beings.Hugh Donaville:Yes,I do.If I didnt believe that,Id be in a different job.Presenter:Many people believe that cloning is wrong and against _.How do you answer them?Hugh Donaville:I tell them that cloning is a way of helping nature.beneficialnaturePres

12、enter:But cloning treats animals and people as things,as _.Hugh Donaville:Nonsense!I dont think thats true at all.I dont think scientists treated Dolly the sheep as a product.She was a sheep!Presenter:Im not sure everyone believes that.Also,people are afraid that scientists will create thousands of

13、_ of the same person.Hugh Donaville:I agree,if that happened,it would be terrible.We need laws to prevent that.productscopies Presenter:Im glad you agree about that.But why do scientists want to clone humans?I cant see any good reasons for this.Hugh Donaville:On the _,there are very good reasons.For

14、 example,if a couple cant have children,then cloning can give them a child.And if a child dies,we could clone it.Presenter:Create an identical copy,you mean?I think thats a terrible idea.contraryHugh Donaville:A clone can never be an identical copy of another person.Its not just your genes that crea

15、te who you are.Its your family and _ as well.Presenter:True.Hugh Donaville:To continue,we could clone animals that are becoming _.Presenter:Yes,if we were able to do that,it would be wonderful.I can see there are many _ both for and against cloning.societyextinctargumentsMatch the words and expressi

16、ons in the box with their meanings.on the contrary Thats it.Incredible to continueobviously in other wordsNonsense!1.clearly2.Im going to continue.3.to say it another way4.Its a difficult to believe!5.The opposite is true.6.Thats completely untrue.7.Thats right.obviouslyto continuein other wordsIncr

17、edible!on the contraryNonsense!Thats it.Complete the conversation with the expressions.T(Teacher):Tell me what you know about cloning.S(Student):Cloned animals take their genes from both their parents.T:_,they take their genes from a single parent.On the contraryS:Sorry,yes._ scientists join an egg

18、and an adult cell from the same animal or plant.This creates a clone.T:_!Well done!S:But of course,cloned animals will never be“real”animals,will they?To continueThats itT:_!_,there are problems with cloned animals at the moment.This is because cloning is a new science.But one day,clones will be just as good as real animals or humans.S:_,cloned animals will be just like you or me?T:Yes!S:_!NonsenseObviouslyIn other wordsIncredibleAssignment1.Read the tape script aloud;2.Finish the exercises in the workbooks