英語(yǔ)時(shí)態(tài)課件小學(xué)

EnglishtensePowerPointcoursewareforelementaryschool目錄contentsIntroductiontoEnglishTenseDetailedexplanationoftheprDetailedexplanationofpastDetailedexplanationoffuture01IntroductiontoEnglishTensePresentcontinuoustenseItisusedtoexpressanactionthatiscurrentlyhappeningortakingplacePresentperfecttenseItisusedtoexpressanactionthathashappenedinthepastbutisstillrelevantinthepresentationSimplepresenttenseItisusedtoexpressageneraltruth,hat,orrepeatedactionPresenttense03PastperfecttenseItisusedtoexpressanactionthathadhappenedinthepastbeforeanotheractionoccurred01SimplepasttenseItisusedtoexpressanactionthathappenedinthepast02LastcontinuoustenseItisusedtoexpressanactionthatwashappeninginthepastPasttense123ItisusedtoexpressanactionthatwillhappeninthefutureSimplefuturetenseItisusedtoexpressanactionthatwillbehappeninginthefutureFuturecontinuoustenseItisusedtoexpressanactionthatwillhavehappenedinthefuturebeforeanotheractionoccursFutureperfecttenseFuturetense02DetailedexplanationoftheprDefinitionThepresentcontinuoustenseisusedtodescribeanactionthatiscurrentlyhappeningItisformedusingtheverb"tobe"andthepresentparticle(-ing)oftheverbFormsThebasicformofthepresentcontinuoustenseis"Iamdoing","Youaredoing","He/She/Itisdoing"Examplesentences"Iamstudying","Theyareplayingfootball"Presentcontinuoustense010203DefinitionThepresentperfecttenseisusedtodescribeanactionthathasbeencompletedinthepastbutitsresultisstillvalidinthepresentItisformedusingtheverb"tohave"andthepastparticleoftheverbFormsThebasicformofthepresentationperfecttenseis"Ihavedone","Youhavedone","He/She/Ithasdone"Examplesentences"Ihavefinishedmyhome","TheyhavevisitedParis"PresentperfecttenseThepresentperfectcontinuoustenseisusedtodescribeanactionthathasbeenonginginthepastbutisstillonginginthepresentItisformedusingtheverb"tohavebeen"andthepresentparticle(-ing)oftheverbThebasicformofthepresentperfectcontinuoustenseis"Ihavebeendoing","Youhavebeendoing","He/She/Ithasbeendoing""Ihavebeenstudyingforthepasttwohours","Theyhavebeenplayingfootballsince3pm"DefinitionFormsExamplesentencesPresentperfectcontinuousten03DetailedexplanationofpastDefinitionThepastcontinuoustenseisusedtoshowthatanactionwasinprogressinthepastFormatThepastcontinuoustenseisformedbycombiningtheverb"tobe"(inthepastform)withthe-ingformoftheverbForexample,"Hewaswalking"meansthatthepersonwasintheprocessofwalkinginthepastUsageThepastcontinuoustenseisusedtodescribeanactionthatwashappeningataspecifictimeinthepastItiscommonlyusedinstoriesorwhendescribingasequenceofeventsthatoccurredinthepastPastcontinuoustenseDefinitionThepastperfecttenseisusedtoshowthatanactionhadalreadybeencompletedinthepastFormationThepastperfecttenseisformedbyusingthepastformof"tohave"andtheparticleformoftheverbForexample,"Hehadfinishedhishome"meansthathehadalreadycompletedhishomeinthepastUsageThepastperfecttenseisusedtoshowthatanactionhadbeencompletedbeforeanotheractionoccurredItiscommonlyusedinstoriesorwhendescribingasequenceofeventsthatoccurredinthepastPastperfecttenseThepastperfectcontinuoustenseisusedtoshowthatanactionhadbeenongoinginthepastandhadbeeninterruptedbyanotheractionThepastperfectcontinuoustenseisformedbycombiningthepastperfecttensewiththecontinuousformoftheverbForexample,"Hehadbeenstudying"meansthathehadbeenstudyingatsomepointinthepastandhadbeeninterruptedbyanotheractionThepastperfectcontinuoustenseisusedtoshowthatanactionhadbeenhappeningataspecifictimeinthepastandwasinterruptedbyanotheractionItiscommonlyusedinstoriesorwhendescribingasequenceofeventsthatoccurredinthepastDefinitionFormatUsagePastperfectcontinuoustense04DetailedexplanationoffutureThefuturecontinuoustensecanalsobeusedtoexpressprobabilityorpossibilityinthefuture,suchas"Itwilllikelybetrainingtomorrow"or"Theywilllikelybearrestingat9o'clock"FuturecontinuoustensemeansthattheactionwillbeinprogressinthefutureItisformedbycombiningtheverbs"will"or"shall"withthe-ingformoftheverbForexample,"Iwillbestudying"meansthattheactionofstudyingwillbeinprogressinthefutureThistenseisoftenusedtoexpressplansorarrangementsforthefuture,suchas"Iwillbemeetingmyfriendstomorrow"or"TheywillbeflyingtoNewYorknextweek."FuturecontinuoustenseFutureperfecttensemeansthattheactionwillhavebeencompletedinthefutureItisformedbycombiningtheverbs"will"or"shall"withtheperfectformoftheverbForexample,"Iwillhavestudied"meansthattheactionofstudyingwillhavebeencompletedinthefutureThistenseisoftenusedtoexpressarrangementsorplansforthefuture,suchas"Iwillhavefinishedmyhomebynextweek"or"Theywillhaveleftforvacationbytheendofthemonth"Thefutur