英语动词时态课件

EnglishverbtensePowerPointcourseware目录introductionOverviewofEnglishverbtensesPresenttense目录PasttensefuturetenseNonfiniteverbtensePracticeandconsolidation01introductionThisPowerPointcoursewareisdesignedtohelplearnersunderstandandmastertheusageofEnglishverbtenses.ItprovidesacomprehensiveoverviewofthedifferenttensesusedinEnglish,includingpresent,past,future,andconditionaltenses.Thecoursewareisdividedintomultipleslides,eachfocusingonaspecificaspectofverbtenseusage.Itincludesexamples,explanations,andexercisestohelplearnersunderstandandapplytheknowledgetheyhavegained.CourseIntroductionLearnerswillbeabletoidentifyandusetheappropriateEnglishverbtenseindifferentcontexts.Learnerswillalsobeabletoanalyzecomplexsentencesandidentifytheappropriateverbtenseinthem.Theywillunderstandthedifferencesbetweenthevarioustensesandwhentouseeachone.Finally,learnerswillgaintheconfidencetospeakandwriteinEnglishwithproperverbtenseusage.Learningobjectives02OverviewofEnglishverbtensesTensereferstothetimeofaneventoractioninthepast,present,orfuture.ItisacrucialpartofEnglishgrammarandisusedtoconveythetemporalrelationshipsbetweendifferentevents.Thetenseofaverbindicateswhethertheactionoreventoccurredinthepast,ishappeninginthepresent,orwilloccurinthefuture.Italsoshowsthesequentialorderofevents.DefinitionofTenseSimpletenseThistenseisusedtoexpressanactionoreventthatoccursataspecificmomentintime,suchas"Ieatanappleeveryday."ContinuoustenseThistenseisusedtoexpressanactionoreventthatextendsoveraperiodoftime,suchas"HehasbeenstudyingEnglishforthreeyears."PerfecttenseThistenseisusedtoshowanactionoreventthathasalreadyoccurredpriortoanotheractionorevent,suchas"Shehasfinishedherhomeworkbeforedinner."ThetypesoftensesTenseisusedtocreateanarrativeflowandcoherenceinwritingandspeech.Ithelpsthereaderorlistenerunderstandthetemporalrelationshipsbetweendifferenteventsandactions.Properusageoftenseisessentialforclearandaccuratecommunication.Itensuresthatthemessageisconveyedintheintendedtimeframeandavoidsconfusionormisinterpretation.TheUsageofTense03Presenttense表示正在进行的动作或状态。定义例句结构IamstudyingEnglish.(我正在学习英语。)主语+be动词+-ing形式+其他成分。030201Presentcontinuoustense

Presentperfecttense定义表示已经完成的动作或状态，强调与现在的关系。例句IhavestudiedEnglishforthreeyears.(我已经学了三年的英语。)结构主语+have/has+过去分词+其他成分。例句IhavebeenstudyingEnglishsincelastyear.(我从去年开始一直在学习英语。)定义表示从过去某个时间点开始一直持续到现在的动作或状态，强调现在还在进行中。结构主语+have/has+been+-ing形式+其他成分。presentperfectcontinuoustense04Pasttense表示过去某个时间正在进行的动作Thepastcontinuoustenseisusedtoshowanactionthatwasongoinginthepast.Itisformedbyusingthe助动词"was"or"were"withthe-ingformoftheverb.Forexample,"HewasreadingabookwhenIcalledhim."PasttensePastcontinuoustenseVS表示过去的某个动作已经完成Thepastperfecttenseisusedtoshowanactionthathadbeencompletedinthepast.Itisformedbyusingthe助动词"had"withthepastparticipleoftheverb.Forexample,"Ihadfinishedmyhomeworkbeforedinner."PasttensePastcontinuoustense表示过去某个动作在另一个过去动作之前已经开始，并且一直持续到那个动作发生Thepastperfectcontinuoustenseisusedtoshowanactionthathadbeenongoingforsometimebeforeanotherpastactiontookplace.Itisformedbyusingthe助动词"hadbeen"withthe-ingformoftheverb.Forexample,"Wehadbeenwaitingforhourswhenhefinallyarrived."PasttensePastcontinuoustense05futuretense用法强调未来某个时间点正在进行的活动，常与表示将来的时间状语连用，如nextyear、tomorrow等。定义表示将来某个时间正在进行的动作。结构willbe+-ing。例句IwillbestudyingEnglishnextyear。FuturecontinuoustenseABCD定义表示将来某个时间已经完成的动作。例句Iwillhavefinishedmyhomeworkbytheendofnextmonth。用法强调未来某个时间点之前已经完成的活动，常与表示将来的时间状语连用，如bytheendof、before等。结构willhave+-ed。Futureperfect输入标题结构定义Futureperfectprogressive表示将来某个时间正在进行的动作已经完成。强调未来某个时间点之前已经开始并已完成的动作，常与表示将来的时间状语连用，如bytheendof、before等。WewillhavebeenstudyingEnglishforthreeyearsbynextsummer。willhavebeen+-ing。用法例句06NonfiniteverbtenseSummary:Thepresentparticipletenseisusedtoshowactionshappeningatthesametimeasthemainverb,oractionsthatareongoing.DescriptionUsedwiththe-ingformoftheverb,e.g.,"Running,hefell."Canbeusedasasubject,object,orcomplement,e.g.,"Smiling,shegreetedhim."Canshowsimultaneitywiththemainverb,e.g.,"Walkingalongthebeach,shefoundashell."0102030405PresentparticipletenseSummary:Thepastparticipletenseisusedtoshowanactionthathasbeencompletedbeforetheactionofthemainverb.DescriptionUsesthe-edor-enformoftheverb,e.g.,"Seenfromabove,thecitylookedbeautiful."Canbeusedinpassivevoiceconstructions,e.g.,"Thehousewasbuiltin1920."Canshowtemporalorconditionalrelationshipswiththemainverb,e.g.,"Havingfinishedhiswork,hewenthome."PastparticipletenseSummary:Thegerundtenseisaverbalformthatfunctionsasanoun,typicallyshowingactionsasthesubjectorobjectofasentence.DescriptionUsesthe-ingformoftheverbbutwithoutthe-ingsuffix,e.g.,"Swimmingismyfavoriteexercise."Canbeusedasasubjectorobject,e.g.,"Ienjoyreadingbooks."Canshowpurposeorresultwiththemainverb,e.g.,"Hestoppedwritingtofocusonhisstudies."0102030405Gerundtense07PracticeandconsolidationMultipleChoiceQuestionsThesequestionspresentasentencewithamissingverbandasetofoptionsforthecorrecttense.Thestudentmustchoosetheoptionthatbestcompletesthesentence,consideringthecontextandtheinformationprovided.DetailThistypeofquestionhelpsstudentsidentifythecorrectverbtensebycomparingdifferentoptions.Itchallengestheirunderstandingofwhentouseeachtenseandimprovestheirdecision-makingskills.MultipleChoiceQuestionsCompletionThistaskrequiresstudentstofillintheblankwiththecorrectformoftheverb.Itteststheirabilitytocorrectlyconjugat