高二英语（选修八）unit 2 using language.ppt

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1、cloningPre-readingInpairsdiscusswhatyouunderstandaboutclothing.Thenlistthequestionsyouwanttofindout.Shareyourlistswithoneanother.1.Howisacloneproduced?2.Whatbenefitscanhumansgainfromcloning?3.Whatproblemsmayarisewhenhumansarecloned?4.Shouldweclonehuman?5.Couldcloningreplacesex

2、asthemeansofcreatingnewhumanlife?6.Couldaparentcloneachildwhoisdyingofaterminalillness?FastReadingPleasereadthereadingin3minutstogetmainidea.主旨大意1.Themainideaofthetextis____A.animalcloningisveryvaluableandcanbenefittheworld.B.animalcloningcouldbemisusedbybadpeoplesoitmustbeforbid

3、denC.animalcloningiswelldevelopedbecauseDollythesheepwasborn.D.animalcloningraisedargumentsandscientistsarenotsureaboutitsfuture.Pleasereadthereadingagain,andtheningroups,finishthefollowingexercises.1.BlankfillingCloningIsa___ofmakinganexact____ofanotheranimalandplant.The______clo

4、nesRefertogardenerstaking_______fromplantstomakenewones,patsofaplanttakenandgrowninalaboratory,andtwins___________insexandappearanceproducedfromthesame_______egg.waycopyNaturalcuttingsOriginalidenticalConingHas___majoruses—toproduce______________quantitiesofplantsanddoresearchonne

5、wplantsspeciesand__________researchonanimals.CloninganimalsHasamore__________procedurethancloningplantsThecloningofDollythesheepIsthefirst_____________clone,andencouragesthescientificworldtofollowthe________2commercialmedicalcomplicatedsuccessfulprogress2.Whichofthefollowingstatem

6、entsaboutcloningisNOTtrueaccordingtotext?____Cloningissomethingthathasbeendevelopedquiterecently.B.Twinsthatlookexactlythesameareoriginallyfromthesameegg.C.Cloningisusedbygardenerstomakemoremoney.D.Animalcloningismuchmoredifficultthanplantcloning.ADollyLivedfor___yearsaltogetheran

7、dsuccessfullygaveabirthtoa___Dolly’s__________Raisedastormof___________andhadagreatimpactonthemediaandpublic______TheeyesoftheworldWereopenedtothe___________ofusingclingingtocureseriousillnessesandevenproducinghuman_____6lambobjectionappearanceimaginationPossibilitybeings3.Theclon

8、ingofDollythesheepsucceededbecaus