英语时态课件小学

EnglishtensePowerPointcoursewareforelementaryIntroductiontoEnglishTensePresenttensePasttenseFuturetenseTheuseoftensionscontents目录IntroductiontoEnglishTense01TenseistheformofaverbthatindicatesthetimeofanactionoreventItshowswheretheactionoccurredinthepast,present,orfutureThetenseisusedtoshowtherelationshipbetweenthetimeoftheactionandthetimeofspeakingorwritingDefinitionofTenseThisisthebasicformofaverb,withoutanyauxiliaryverbsItindicatestheactionoreventinitssimpleformSimpletenseThisincludesthesimpletensewithanauxiliaryverbComplextensionsareusedtoshowthetimeoftheactioninrelationtothetimeofspeakingorwritingComplextenseThetypesoftensionsCommunication01Tenseisessentialforeffectivecommunication,asithelpstodiscoverthecorrectmeaningandintentionofthespeakerorwriterUnderstanding02Tenseisusedtounderstandthetimeofanactionorevent,whichiscriticalforcomprehensionandunderstandingGrammar03Tenseisakeypartofgrammar,asithelpstostructuresensesanddeterminetheirmeaningTheRoleofTensePresenttense02Summary:ThepresentcontinuoustenseisusedtoexpressactionsthatareongoingortemporaryinthepresentmomentDescriptionItisformedbyusingthepresentationformoftheverb"tobe"(am,is,are)followedbythe-ingformofthemainverbExample:"IamstudyingEnglish."Thistenseisoftenusedwhenreferringtofutureplansorarrangements0102030405PresentcontinuoustenseSummary:ThepresentperfecttenseisusedtoexpressactionsthathavebeencompletedinthepastandhaverelevancetothepresentmomentPresentperfecttenseDescriptionItisformedbyusingthepresentationformoftheverb"have"or"has"followedbythepastparticleofthemainverbPresentperfecttenseExample:"IhavestudiedEnglish."ThistenseisoftenusedtotalkaboutexperiencesorsituationsthathappenedinthepastbutstillhaverelevancetodayPresentperfecttenseSummary:Thepresentsimpletenseisusedtoexpressactionsthatareverbal,general,ornotemphasizingtimePresentsimpletensePresentsimpletenseDescriptionItisformedbyusingthepresentationformoftheverb(without"tobe"or"have")followedbytheinfinitive,-ing,orpastparticleformofthemainverb0102PresentsimpletenseThistenseisoftenusedwhengivinggeneralstatementsordescribingtypicalsituationsExample:"IstudyEnglisheveryday."Pasttense03Indicatesanactionorstatethatwastakingplaceatacertaintimeinthepast.Yesterday,IwasplayingbasketballwhenmyfriendcalledmePastcontinuoustenseExamplesentenceDefinitionDefinitionReferstoanactionthathasalreadybeencompletedbeforeapastaction.ExamplesentenceBeforeIwenttotheparty,IhadfinishedmyhomeworkPastperfecttenseSimplepasttenseDefinitionReferstoanactionorstatethatoccurredatacertaintimeinthepast,withoutemphasizingapointintime.ExamplesentenceLastweek,IvisitedmygrandparentsandwehadagreattimeFuturetense04IndicatesanactionbeingtakenatacertaintimeinthefutureThistenseisusedtotalkaboutactionsthatwillbehappeninginthefutureatsometimeupuntilanotheractioninthefutureItisformedbycombiningtheauxiliaryverb"will"withthe-ingformoftheverbExamplesentence:"IwillbestudyingEnglishinthenextyear."FuturecontinuoustenseBehaviorthathasbeencompletedbeforeacertaintimeinthefutureThistenseisusedtotalkaboutanactionthatwillbecompletedbeforeanotheractioninthefutureItisformedbycombining"willhave"withthepastparticleoftheverbExamplesentence:"Iwillhavefinishedmyhomebytheendofthemonth."Futureperfect01Behaviorthatrepresentsanuncertaintimeinthefuture02Thistenseisusedwhentalkingaboutanactionthatwillhappenatsomepointinthefuture,buttheexacttimeisnotknownItisformedbyusing"will"withthebaseformoftheverb03Examplesentence:"Iwillvisitmygrandparentsnextyear."FuturedefineTheuseoftensions05SimplepasttenseUsedtodescribeactionsoreventsthatoccurredinthepastandarecompletedExample:"Iwalkedtotheparkyesterday."PresentperfecttenseUsedtoshowanactionthatstartedinthepastandcontinueduntilthepresentationExample:"Ihavelivedinthiscityfor5years."FuturetenseUsedtotalkaboutactionsoreventsthatwillhappeninthefutureExample:"Iwillvisitmygrandparentsnextweek."TheselectionoftensionsPresentperfecttopastsimpleRemove"have"or"has"andchangetheverbtoitspastparticleform.Example:"Ihavewalked->Iwalked."FuturesimpletopresentsimpleRemove"will"andchangetheverbtoitspresentparticleform.Example:"Iwillwalk->Iwalk."PresentsimpletopastsimpleChangetheverbtoitspastparticleform.Example:"Iwalk->Iwalk."TenseconversionPayattentiontothecontextoftheconversationorsituationtodetermin