2019-2020年九年级英语下册 Lesson 10 What is DNA教案 冀教版

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1、2019-2020年九年级英语下册Lesson10WhatisDNA教案冀教版　　Lesson10WhatisDNA?　　TeachingContent:　　Masterywordsandexpressions:generally,twin,clone,notonly…butalso　　Oralwordsandexpressions:blueprint,identical,egg,identify　　TeachingAims:　　1.      Knowhowtowriteapassageonscience.　　2.      Lea

2、rnsomethingaboutDNA.　　3.      Knowmoreaboutourbody.　　TeachingImportantPoint:　　1.      Masterthewordsandexpressionsofthislesson.　　2.      Theabilityandinability.　　3.      Theuseofcoordinatingconjunctions.　　TeachingDifficultPoint:　　TheuseofDNA.　　TeachingPreparation:pictur

3、es　　TeachingAids:flashcards,audiotape,pictures　　Typeoflesson:newlesson　　TeachingProcedure:　　Step1.LeadinthetextbydiscussingwhatDNAis.Dividetheclassintoseveralgroups.Thentalkaboutthesubjectforseveralminutes.Thenoneofthegroupspresentstheiropinionsinfrontoftheclass.　　Step2

4、.Listeningtask:　　Listentothetapeandfillintheblankswiththecorrectwordsyouhear.　　1.      Generallyspeaking,a______isadrawing.　　2.      ______foridenticaltwins,eachlivingthinghasitsownuniqueDNA.　　Playthetapeonce.Thenletthestudentstrytofinishthetaskinclassinoral.　　Step3.Rea

5、dingtask:　　Readthetextquicklyandanswerthefollowingquestions:　　1.      WheredoesyourDNAefrom?　　2.      IsyourDNAineverypartofyourbody?　　Finishthereadingtaskinclassinoral.Trytogetmoreinformationaboutthetextatthesametime.　　Step4.Readthetextagain.Findthesentenceswiththeneww

6、ords.Trytocreatesituationaboutthenewwords.Thenmakesentenceswiththenewwords.Ifsomeonecanmakeawholestorywiththenewwordsthatwelearninthislesson,theteachermustencourageher.　　Thesentenceswiththenewwords:　　Generallyspeaking,ablueprintisadrawing.　　Identicaltwinsaretwochildrent

7、hatgrewfromthesameegg.　　Theyareclones.　　FromyourDNA,scientistscanidentifynotonlyyou,butalsopeoplerelatedtoyou.　　Step5.Letsomestudentstellsomedetailsaboutthetext.　　WhatisDNA?　　WhereisyourDNAfrom?　　WhatisDNAusedfor?　　Step6.eto“LET'SDOIT”.　　Finishthetaskwithapartner.Findth

8、ethingsaboutyouthatshowyourparents'DNA.Talkaboutifforawhile.Thenletsomevolunteersetothefronttotalkaboutthesubj