高中英语《现在完成时》PPT课件

GrammarandusagePresentperfecttense&Presentperfectcontinuoustense现在完成时和现在完成进行时平冈中学尹莉清Activity1.Findsomeonearoundyouwho…1.hasbeenlovingsinginginthedormitoryfortwomonths?2.haslearnedtoplaypianoforfiveyears?3.hasbeensaying“Goodnight”toherroommateformorethanonemonth?4.havebeenutilizingprehistoricalpowers(洪荒之力）tofightwithotherclassesinthebasketballmatch?5.hasbeenteachingEnglishinourclassformorethan2months?PartAStep1ObserveanddiscoverMrZhanghasjustboughtanewcar,buthehashadtoublewithmotorists.Whenhereturnshomeatnighthealwaysfindthatsomeonehasparkedacaroutsidehisgate.Becauseofthis,hehasnotbeenabletogethisowncarintothisgarageevenonce.Hehastowalkhomeafterheparkshiscar.“what’sthematter?Haveyouboughtacar?”“Yes,but…”MrZhanghasputupa“Noparking”signoutsidehisgate,butithasnotanyeffect.hasjustboughthashadhasparkedhasnotbeenHaveyouboughthasputuphave/hasdone----PresentperfecttenseObserveanddiscoverLucyandJohnhavebeenlivinginthecityfortenyears.TheirdaughterhasbeenlearningEnglishsinceshewasfive.Theywanttotakehertothecinemaafterschool.Theyhavebeenwaitingforherforhalfanhour.Shefinallyshowsupatfivepastfive.have/hasbeendong---PresentperfectcontinuoustensehavebeenlivinghasbeenlearninghavebeenwaitingCompareanddiscoverthemeaningbehindthesentences.Ihavejustcleanedmyclothes.我刚洗过衣服.Ihavealreadyhadmybreakfast.我刚吃过早餐。IhavebeentotheGreatWall.我去过长城。（Meaning:Icleanedmyclothes,andtheyarecleannow.)(Meaning:IhadmybreakfastandI'mnothungrynow.)(Meaning:IwenttotheGreatWall,andnowIknowaboutit.)WhatisPresentperfecttense?Function1:1)ResultThingsthathappenedintherecentpastbutareconnectedtothepresent.Ithasaneffectonthepresent.Inthiscase,thetenseisoftenusedwithtimeexpressionssuchas:already,yet,just,never,ever,before,etc.CompareanddiscovermoreWehavebeeninPGHSforjustovertwomonths.ShehaslearntEnglishsince3yearsagoGreatchangeshavetakenplaceinShenzhensince30yearsago(Meaning:Wecametotheschooltwomonthsagoandwearestillstayinghere.)Meaning:ShelearnedEnglish3yearsagoandnowsheisstilllearningit.Meaning:GreatchangestookplaceinShenzhen30yearsago,andthey'vestilllastedtillnow.2).ContinuityThingsthatstartedinthepast,andarestillhappeningnow.Inthiscase,thetenseisoftenusedwithtimeexpressionssuchas:since,for,sofar,bynow,uptonow,thesedays,inthepasttenyears,recently,lately,etc..for-----aperiodoftimesince----apointoftimeDrill1Choosetherightanswers1.Ihavejoined/beeninthearmyfortenyear.2.Hehasbeento/gonetoDalianmanytimes.3.Shehasgotmarried/beenmarriedtoRobertsforayear.4.Allthepreparationsforthetaskarecompleted/havebeencompleted,andwe’rereadytostart.5.Hehasgone/beenawayfortwodays.6.Hehashad/hasboughtthisbookforayear.√√√√√√Tip1:Noncontinuityverbs(非延续性动词)andpresentperfecttense:Whennoncontinuityverbsmeetthepresentperfecttense,theyneedtochangetheway.Theyhavetotransformnoncontinuityverbstocontinuityverbs.在现在完成时态中，非延续性动词不可以和for，since引导的延续性时间状语连用。Tip2非延续性动词与延续性动词的转换come/go—be(in)leave—beawayborrow—keepbuy—havedie—bedeadgettoknow—knowbegin—beongoout—beoffgoout—beoffarrive–behere/theremarry/getmarried(to)—bemarried(to)begintowork/study/live–work/study/leavefallasleep/gettosleep—beasleepjointheParty—beintheParty/beamemberof√×××√×√√()()()()()()()()Ihaveboughtanewdictionaryforaweek.Ihavehadanewdictionaryforaweek.我买一本新词典已有一星期了。Theyhavecomeherefortwodays.Theyhavebeenherefortwodays.他们来这儿已经两天了。HehasjoinedtheLeaguememberfortwoyears.HehasbeenaLeaguememberfortwoyears.他已入团两年了。Themanhasbeendeadforseveralyears.Themanhasdiedforseveralyears.这个人已经死了几年了。PartBStep2.CompareanddiscoverFindthemeaningbehindthesentence.Ihavebeenwritinglettersfortwohours.我一直在写信整整两个小时了。Meaning:ThatishowIhavespentmytime.Itdoesn’tmatterwhetherthelettersarecompletednow.Itemphasizesthedurationofactionratherthanresult.------ContinuityShemustbetired,forshehasbeendancingallday.她肯定累了，因为她一天一直在跳舞(Meaning:Shebegandancinginthepast,andkeepsdancingallday.Itisbecauseofhernon-stoprepetitivedancingthatmakeshertired.)----RepetitionTheyhavebeenwaitingfortheirdaughterintherainforanhour.他们在雨中等女儿足足一个小时。(Meaning:Theyhavekeptwaitingsolongintherain.Thereissomewhatcomplaintinwaitingforher.)----EmotionWhatisthepresentperfectcontinuoustense?Thingsthatstartedinthepast,havelasteduptonowandwillprobablycontinuetohappen.Usage:continuity,repetitionandemotion.ComparisiontensepresentperfecttensePresentperfectcontinuoustensesimilaritycontinuityIhavetaughtEnglishforover20years.continuityIhavebeenteachingEnglishforover20years.Difference1.resultIhavedonemyhomework.2.desiredeffectIhavewashedmycar.3.FactThelazyboyhaslaidinbedforawholeday.1.repetitionIhavebeendoingmyhomework.2.unwantedside–effect.---Whyareyousowet?----Ihavebeenwashingmycarallthemorning.3.EmotionThelazyboyhasbeenlyinginbedforawholeday.dowilldobedoinghavedonehavebeendoingStep3.PracticeforconsolidationDrill4难度◆◆1.Youknow,I___________________(look)forajobforthreemonths,andthisismyfirstformalinterview.2.Mysister_____________________________(stay)inBeijingfor3months.3.Thelittleboyisdirtyalloverashe_______________(play)inthemudallthemorning.4.Hereheis!We______________(wait)anxiouslyforhimsincelastnight.havebeenloo