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1、Lesson25:Let’sDoanExperimentTeachingContent:Masterywordsandexpressions:science,experiment,fill,proveOralwordsandexpressions:theory,jar,upside,observe,right,sideup,upsidedownTeachingAims:1. UsetheSimplePresentTense.2. ExpresscertaintyanduncertaintyTeachingImportantPoints:1.
2、 Learntoexpresssequence;2. Howtoexpressanexperiment.TeachingDifficultPoints:ExpresscertaintyanduncertaintyTeachingPreparation:jar,cardboard,waterTeachingAids:audiotape,flashcards,jar,cardboard,waterTypeoflesson:newlessonTeachingProcedure:Step1.Teacherbringsthejar,cardboardandw
3、atertotheclass.Showthemtothestudentsandaskwhatexperimentswecandowiththem.Letthestudentsshowthemandexplainthereasonstothestudents.Letthestudentsworkingroupsanddiscusstheexperiments.Whenonegroupisdoingtheexperiments,theotherscanaskthequestions.Theteachercanaskquestions,too.Step2.Nowle
4、tthestudentsopentheirbooksandguesswhattheexperimentis.AskthestudentstosayitinEnglish.Step3.Readthetextsilentlyandanswersthefollowingquestions.1. What’satheory?2. What’sanexperimentfor?3. DidDannyreadabouttheexperiment?Whatisitabout?4. Doyouthinkthecardboardcanholdthe
5、waterinthejar?Why?Step4.Readthetextcarefullyandchecktheanswers.Explainsomewordsandexpressionstotheclass.Step5.Listentothetapeandrepeatafteritlinebyline.Canthestudents’listeninggoodenoughtohearclearly?Step6.Cometo“Let’sDoIt.”Dividetheclassintotwogroups.Onegroupthinksthefloorwillgetwe
6、t.Theothersthinkitwon’t.Letthemdiscussinclass.Payattentiontotellingthereasons.Step7.Homework1. Reviewthenextlesson.2. Finishofftheactivitybook. Summary:Theexperimentisthemainpartofthetext.Ifwehavetime,doitintheclass.Thenaskthemtodescribewhattheysee.Giveareporttotheclass.Ifth
7、etimeinclassisn’tenough,letthestudentsdotheexperimentafterclass.Thenreporttheresulttotheclass.Theteachercandotheexperimentforthestudents,too. Lesson26:OneWetDanny?TeachingContent:Masterywordsandexpressions:forceOralwordsandexpressions:swimsuit,observation,turn…overTeachingAims:1.
8、 UsetheSimpleFutur
