高中英语 模块二 unit1 Grammar and usage 1课件 译林牛津版必修2.ppt

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1、GrammarandusageUnit1Presentperfecttense&PresentperfectcontinuoustensePresentperfecttenseStep1Lead-inGooverthenewsstoryonPage2andfindthesentencesusingthepresentperfecttense.Pleaseexplainwhythetenseisusedinthesesentences.ThedisappearanceofJustin_______(make)Kellyveryunhappy

2、.hasmade1.Weusethepresentperfecttensetotalkaboutthingsthathappenedintherecentpast,butareconnectedtothepresent.Step2Points1-6·I___________(notsee)JustinsincelastFridaynight.havenotseen2.Wealsousethepresentperfecttensetotalkaboutsomethingthatstartedinthepast,andisstillhappe

3、ningnow.3.Weusethepresentperfecttensewhentheexacttimeofanactionisnotclearorimportant.Weuseitwithtimeexpressionssuchas:alreadyeverforjustlatelyneverrecentlysinceyetExercise:completethefollowingsentenceswiththepropertense:(1)We____________(study)Englishforaboutfiveyears.(2)

4、They__________(live)inthesouthsincetheirdaughterwasborn.(3)I__________(read)yourarticlethreetimes.It’swellwritten.(4)Thestudent______________(finish)herhomeworkalready.(5)Eric_____just_____(go)backtohishometown.havestudiedhavelivedhavereadhavefinishedhasgoneWeusealreadyfo

5、raffirmativestatementsandyetfornegativestatements.Weusefor+aperiodoftimeandsince+apointintime.4.Weusethepresentperfecttensetotalkaboutactionsthatwerecompletedonlyashorttimeago.Thepolicehavejustfinishedsearchingtheareas.5.Wecanalsousethepresentperfecttenseforrepeatedaction

6、s,thatis,weusethepresentperfecttensewiththetimeexpressionsonce/twice/threetimes…6.Form:have/has+thepastparticipleoftheverbStep3Readthediaryentryandthencompleteitusingthecorrectformsoftheverbsinbrackets.Answers:(2)saw(3)hasvisited(4)loves(5)hasn’tvisited(6)hasswum(7)hasnev

7、ermet(8)hasdived(9)hasfound(10)hasn’tfound(11)Has,beenPresentperfectcontinuoustense1.Form:have/hasbeen+thepresentparticipleoftheverb.2.Weusethepresentperfectcontinuoustensetotalkaboutactionsthatstartedinthepastandarestillcontinuing.IhavenotbeensleepingwellsinceIreturnedho

8、me.Past_____________________________________PresentnotbeingabletosleepwellIreturnedhome.I’mstill