九年级英语下册 Unit 2 DNA整单元教案 冀教版VIP免费

Unit2DNALesson9:What’sa“Horkey”?TeachingContent:Masterywordsandexpressions:helpful,atthesametimeOralwordsandexpressions:DNA,combine,juicy,mule,donkeyTeachingAims:1.Knowmoreaboutcloning.2.Howtocombinetwodifferentthings.TeachingImportantPoints:1.Talkabouttheabilityandinability.2.Theuseofcoordinatingconjunctions.3.Combinetwodifferentthings.TeachingDifficultPoints:Talkabouttheabilityandinability.TeachingPreparation:picturesTeachingAids:flashcards,audiotape,picturesTypeoflesson:newlessonTeachingProcedure:Step1.Leadintheclassbyshowingsomepicturesaboutcombiningtothestudents.Theymaybeaboutdifferentthings,suchasfood,fruit,animalsandotherthings.Step2.Listentothetapeandanswerthefollowingquestions:1.CanDannycombineadonutandapizza?2.Whowantstocombineacowandachick?Letthestudentsanswerthequestionswiththehelpofthepictures.Finishthetaskinoralinclass.Step3.Readthetextandfillintheblankswiththecorrectwords.1.Wecancombinetwodifferent______ortwodifferent______.2.Brianwouldcombine______and______.Lookthroughthewholetextquicklyandanswerthequestionsinclassinoral.Step4.Encouragethestudentsfindthenewwordsinthislesson.Givemoreexamplesandletthestudentsunderstandmoreaboutthewords.Iwouldcombineadonutandapizza.ThenIcouldhavebreakfastandlunchtogether.ThenIwouldhavelittle,juicybananas.Doyouknowwhatamuleis?Ithasahorseasmotherandadonkeyasafather.Step5.Readthetextagainandencouragethemtofindmorequestionsaboutthetext.Onestudentstandsupandasksaquestion.Theotherswhowanttoanswercanstandupandansweritasquicklyashecan.Forexample:1.Whatwouldyoucombine?2.Whataboutcombiningaduckandadeer?3.Canwecombineapplesandbananas?Step6.Cometo“PROJECT”.Finishthetaskingroupsofthreeorfourstudents.Thinkaboutsomethingthatiscombinedbytwodifferentthings.Eachofthegroupwriteshisanswerdownandshowsittoothers.Thenchoosethemostmeaningfulonetostudy.Whatwillyourgroupcombine?Whatifyoucombinethetwothings?Whatcanitdoforus?What’sitsadvantage?Talkaboutthequestionsabove,thensumtheirideas.Giveareportinfrontoftheclass.Demonstrateyourideas.Describethethingthatyoucombineindetail.Describeitsadvantagesanddisadvantages.Step7.Homework1.Finishofftheexercisesinactivitybook.2.Goonthenextreadinginthestudentbook.SummaryInthislesson,welearntocombinetwodifferentthingstogether.Inordertogetnewlivingthings,wemustmakefulluseofourimagination.Whatcanthethingsthatwecombineareusedfor?Itisimportantforustodiscuss.Duringthediscussion,wepracticeourspokenEnglish.Lesson10:WhatisDNA?TeachingContent:Masterywordsandexpressions:generally,twin,clone,notonly…butalsoOralwordsandexpressions:blueprint,identical,egg,identifyTeachingAims:1.Knowhowtowriteapassageonscience.2.LearnsomethingaboutDNA.3.Knowmoreaboutourbody.TeachingImportantPoint:1.Masterthewordsandexpressionsofthislesson.2.Theabilityandinability.3.Theuseofcoordinatingconjunctions.TeachingDifficultPoint:TheuseofDNA.TeachingPreparation:picturesTeachingAids:flashcards,audiotape,picturesTypeoflesson:newlessonTeachingProcedure:Step1.LeadinthetextbydiscussingwhatDNAis.Dividetheclassintoseveralgroups.Thentalkaboutthesubjectforseveralminutes.Thenoneofthegroupspresentstheiropinionsinfrontoftheclass.Step2.Listeningtask:Listentothetapeandfillintheblankswiththecorrectwordsyouhear.1.Generallyspeaking,a______isadrawing.2.______foridenticaltwins,eachlivingthinghasitsownuniqueDNA.Playthetapeonce.Thenletthestudentstrytofinishthetaskinclas...