高中英语 Unit1 Tales of the unexplained Grammar and usage教学设计1 牛津译林版必修2 .doc

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1、单　　元：Unit1Talesoftheunexplained板　　块：Grammarandusage1Thoughtsonthedesign:LearnthegrammarPresentperfecttenseandPresentperfectcontinuoustense.Teachingobjectives:1.Learnhowtoformandusethepresentperfecttense.2.Understandwhenthepresentperfectcontinuoustenseisusedinse

2、ntences.Teachingprocedures:Step1Lead-inGooverthenewsstoryonPage2andfindthesentencesusingthepresentperfecttense.Pleaseexplainwhythetenseisusedinthesesentences.Step2Presentperfecttense1.Theformofthepresentperfecttense:has/havedone.2.Talkabouttheusesofthepresentpe

3、rfecttense.A.Weusethepresentperfecttensetotalkaboutthingsthathappenedintherecentpast,butareconnectedtothepresent.表示过去发生的事对现在仍有影响。ThedisappearanceofJustinhasmadeKellyveryunhappy.(Justin在过去失踪，但Kelly至今仍旧为他的失踪感到不高兴。)B.Wealsousethepresentperfecttensetotalkaboutsomet

4、hingthatstartedinthepast,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.Weusethepresentperfecttensewhentheexacttimeofanactionisnotclearorimportant.Weuseitwithtimeexpressionssuchas:alreadyeverforjustlatelynev

5、errecentlysinceyetExercise:Completethefollowingsentenceswiththepropertense.(1)Wehavestudied(study)Englishforaboutfiveyears.(2)Theyhavelived(live)inthesouthsincetheirdaughterwasborn.(3)Ihaveread(read)yourarticlethreetimes.It’swellwritten.(4)Thestudenthasfinished

6、(finish)herhomeworkalready.(5)Erichasjustgone(go)backtohishometown.Weusealreadyforaffirmativestatementsandyetfornegativestatements.Weusefor+aperiodoftimeandsince+apointintime.D.Weusethepresentperfecttensetotalkaboutactionsthatwerecompletedonlyashorttimeago.Inth

7、iscase,justisused.Payattentiontothepositionofjust.Thepolicehavejustfinishedsearchingthearea.E.Wecanalsousethepresentperfecttenseforrepeatedactions,thatis,weusethepresentperfecttensewiththetimeexpressionsonce/twice/threetimes…3.Readthediaryentryandthencompleteit

8、usingthecorrectformsoftheverbsinbrackets.Answers:(1)saw(2)hasvisited(3)loves(4)hasn’tvisited(5)hasswum(6)hasnevermet(7)hasdived(8)hasfound(9)hasn’tfound(10)Has,beenStep3Pres