Unit 1 Tales of the unexplained Grammar and usage 教学设计1

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1、Unit1TalesoftheunexplainedGrammarandusage教学设计1单元：Unit1Talesoftheunexplained板块：GrammarTeachingaims:LearnthegrammarPresentperfecttenseandPresentperfectcontinuoustense.Teachingimportantpoints:1.Learnhowtoformandusethepresentperfecttense.2.Understandwhenthepresentperfe

2、ctcontinuoustenseisusedinsentences.Teachingmethods:Explainingandpracticing.Teachingaids:Themulti-media.Teachingprocedures:Step1Lead-inGooverthenewsstoryonPage2andfindthesentencesusingthepresentperfecttense.Pleaseexplainwhythetenseisusedinthesesentences.Step2Present

3、perfecttense1.Theformofthepresentperfecttense:has/havedone.2.Talkabouttheusesofthepresentperfecttense.A.Weusethepresentperfecttensetotalkaboutthingsthathappenedintherecentpast，butareconnectedtothepresent.表示过去发生的事对现在仍有影响。ThedisappearanceofJustinhasmadeKellyveryunhap

4、py.(Justin在过去失踪，但Kelly至今仍旧为他的失踪感到不高兴。)B.Wealsousethepresentperfecttensetotalkaboutsomethingthatstartedinthepast，andisstillhappeningnow.表示过去开始的动作一直延续到现在。IhavenotseenJustinsincelastFridaynight.(从上周五晚上到现在一直都没有见到过。)C.Weusethepresentperfecttensewhentheexacttimeofanactio

5、nisnotclearorimportant.Weuseitwithtimeexpressionssuchas:alreadyeverforjustlatelyneverrecentlysinceyetExercise:Completethefollowingsentenceswiththepropertense.(1)Wehavestudied(study)Englishforaboutfiveyears.(2)Theyhavelived(live)inthesouthsincetheirdaughterwasborn.(

6、3)Ihaveread(read)yourarticlethreetimes.It’swellwritten.(4)Thestudenthasfinished(finish)herhomeworkalready.(5)Erichasjustgone(go)backtohishometown.Weusealreadyforaffirmativestatementsandyetfornegativestatements.Weusefor+aperiodoftimeandsince+apointintime.D.Weusethep

7、resentperfecttensetotalkaboutactionsthatwerecompletedonlyashorttimeago.Inthiscase，justisused.Payattentiontothepositionofjust.Thepolicehavejustfinishedsearchingthearea.E.Wecanalsousethepresentperfecttenseforrepeatedactions，thatis，weusethepresentperfecttensewiththeti

8、meexpressionsonce/twice/threetimes…3.Readthediaryentryandthencompleteitusingthecorrectformsoftheverbsinbrackets.Answers:(1)saw(2)hasvisited(3)lov