高中英语人教版（新课程标准）选修8【教学设计】module8unit2

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1、Unit2CloningTheFirstPeriodwarmingupAims1.Talkaboutcloning2.PracticeexpressingandsupportinganopinionContentsTaskone:LookingandspeakingInpairs,lookatthepicturesanddiscusswhichonesarenaturalclonesandwhichonesareman-made・Explainhowtheydiffe匚A.DollythesheepB.AstrawberryplantC.TwinsD.IdenticaldogsTask

2、two:QuestionsaboutcloningWhatisaclone?Howisacloneproduced?Whatbenefitscanhumansgainfromcloning?Whatproblemsmayarisewhenhumansarecloned?Taskthree:FreetalkInpairs,discusswhatyouunderstandaboutcloning,thenlistthequestionsyouwanttofindout.Shareyourlistswithoneanother.1.Shouldweclonehuman?2.Couldclon

3、ingreplacesexasthemeansofcreatingnewhumanlife?3.Couldaparentcloneachildwhoisdyingofaterminalillness?TheSecondPeriod.ReadingAims:1.HelptheSstoknowhowtodescribecloningandhowtocatchthedetailsofthetext.2・ActivatetheSstoshowtheiropinionsaboutthecloningandenabletheSstowriteandarticleonthisdebate.Conte

4、nts:Leadinginbyrevision.Taskone:FastreadingWhatisaclone?Showthefollowing・1.Cloningmeansmakingacopyofananimaloraplant.(F.exact...another)2.Gardenerscanmakealotofmoneybycloningplants.(T.)3.Cloninganimalsisascomplicatedascloningplants.(F.morethan)4.Dollythesheepwasthefirstsuccessfulcloneofamammal.(

5、T.)5.Naturalcloneshappeninanimalsaswellasinplants.(T)Tasktwo:CarefulreadingReadthetextagain,trytoanswerthefollowingquestionsandfindoutthemainideaofeachparagraph.Questions:1・What/sthemainideaofthetext?1.Howmanyyearsdidthesheepthatdonatedthesomaticcellmostprobablylive?2.WhydidtheCloningofDollythes

6、heepsucceed?3.Whatdoestheword4straightforward,meaninthesecondparagraph?4.Whatisthewriter'sattitudetowardcloninginthispassage?Themainideaofeachparagraph:Para.1Cloningisawayofmakingancopyofanotheranimalandplant.Para.2Cloninghastwomajoruses.Para.3TheproblemsofDolly.Para.4TheeffectofDolly.Para.5Itis

7、forbiddentoclonehumanbeing.Taskthree:Notesfordebating:Shouldweusecloning?Argumentforcloning:CloningwillbebeneficialtohumansWecouldusecloningtocureillnesses.Argumentsagainstcloning:healthyrisksformmutationofgenesemotionalrisk