浏阳一中李静微课说明grammarandusage.ppt

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1、U4GrammarthePresentPerfectTense.PresentPerfectTenseTask:Form:have/has+donethePresentPerfectTensePartA:Theboyisveryhappy.Theboy___________(catch)abird.(Connectionwiththepast:Theboycaughtabird.Connectionwiththepresent:Theboyishappy.)hascaughtLook,thewindowisopen.Ericopenedthedoorjustnow.Eric

2、____________________(alreadyopen)thedoor.(Connectionwiththepast:Ericopenedthedoor.Connectionwiththepresent:Thedoorisopen.)hasalreadyopenedWeusethepresentperfecttensetotalkaboutthingsthathappenedintherecentpast,butareconnectedtothepresent.Summary(1):haslivedHe______herefortenyears.Hemovedhe

3、retentearsago,andhestilllivesherenow.Connectionwiththepast:Hemovedhere.Connectionwiththepresent:Helivesherenow.Weusethepresentperfecttensetotalkaboutsomethingthatstartedinthepast,andisstillhappeningnow.camehaslived________________________________________pastnowfutureSummary(2):Theboysareti

4、red.They_______________(justplay)aballgame.(Connectionwiththepast:Theboysplayedaballgame.Connectionwiththepresent:Theboysaretired.)havejustplayedWeusethepresentperfecttensetotalkaboutactionsthatwerecompletedonlyashorttimeagoSummary(3):IwenttoEgyptin1986.IwenttoEgyptin2004.I__________(be)to

5、Egypttwice.havebeenWecanalsousethepresentperfecttenseforrepeatedactions.Summary(4):Weusealreadyforaffirmativestatementsandyetfornegativestatementsandinterrogativesentences.2.Weusefor+aperiodoftimeandsince+apointoftime.3.Structuresconnectedwiththepresentperfecttense:1).Itis(hasbeen)+aperiod

6、oftime+since-clause.2)This(That/It)isthefirst(second…)time+that-clause(presentperfecttense).3This(That/It)istheonly)…+that-clause(presentperfecttense).4)This(That/It)isthebest/finest/mostinteresting…+that-clause.Notes:Thankyou!