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英语语法之时态和体.ppt

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该【英语语法之时态和体】是由【sanyuedoc2018】上传分享，文档一共【19】页，该文档可以免费在线阅读，需要了解更多关于【英语语法之时态和体】的内容，可以使用淘豆网的站内搜索功能，选择自己适合的文档，以下文字是截取该文章内的部分文字，如需要获得完整电子版，请下载此文档到您的设备，方便您编辑和打印。TheTenseandAspectofEnglishGrammarPresenttensePasttenseFuturetenseSubjunctivemoodcontents目录PresenttenseCATALOGUE01Summary:UsedtoexpressanactionthatisongoingorcurrentlyinprogressDetailsItisformedbyusingthepresentationformoftheverbwiththe-ingparticle,.,"IamstudyingEnglish"Itemphasizesthecurrentaction,pletionItisoftenusedwiththeadvertisements"now"and"today"PresentcontinuoustenseSummary:pletedatsomepointinthepastuptothepresentmomentDetailsItisformedbyusingthepresentationformoftheverb"have"withthepastparticleoftheverb,.,"IhavestudiedEnglish"pleted,butcouldalsobeongingorrepeatedItisoftenusedwithtimeexpressionslike"sofar"or"untilnow"0102030405PresentperfecttenseSummary:UsedtoexpressanactionthathasbeenonginguptothepresentationmomentandrightstillbeingongingDetailsItisformedbyusingthepresentationformoftheverb"havebeen"withthe-ingparticleoftheverb,.,"IhavebeenstudyingEnglish."ItemphasizesthedurationoftheactionuptothepresentationanditspossiblecontinuationItisoftenusedwithtimeexpressionslike"forthreeyears"or"sincelastyear"PresentperfectcontinuoustensePasttenseCATALOGUE02SummarywordindicatesanactionthatwastakingplaceatacertainpointintimeinthepastDetaileddescriptionThepastcontinuoustenseisusedtoshowanactionthatwasonginginthepastataspecifictimeItisformedbyusingthepastformoftheverb"tobe"(was/were)plusthe-ingformofthemainverbForexample,"HewasreadingabookwhenIcalledhim."PastcontinuoustensePastperfecttensepletedbeforeacertainpointintimeinthepastSummarywordspletedinthepastbeforeanotheractionTookPlaceItisformedbyusingthepastformoftheverb"tohave"plusthepastparticleofthemainverbForexample,"BythetimeIarrived,hehadalreadyfinishedhiswork."DetaileddescriptionSummarywordindicatesanactionthatwastakingplacebeforeacertainpointintimeinthepastDetaileddescriptionThepastperfectcontinuoustenseisusedtoshowanactionthathasbeenonginginthepastbeforeanyotheractionTookplaceItisformedbyusingthepastformoftheverb"tohave"plusthe-ingformofthemainverbForexample,"Bytheendoftheyear,wehavebeenworkingontheprojectforthreemonths."Pastperfectcontinuoustense

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