八大时态讲解ppt课件

.,英语八大时态,.,八大基本时态谓语动词形式,1一般现在时原形或三单2现在进行时am,is,are+现在分词3一般过去时动词的过去式4过去进行时was,were+现在分词5现在完成时have/has+过去分词6过去完成时had+过去分词7一般将来时will/begoingto+动词原形8过去将来时would或was/weregoingto+动词原形,.,用法：,常用时间状语：,谓语动词形式：,1.一般现在时态(TheSimplePresentTense),表示习惯性、经常性的动作或状态。如：Hegoestoworkeveryday.,动词原形/动词三单形式难点：动词的三单变化规则,everyday,always,usually,often,sometimes,onSundays,threetimesaday,.,我一到达那儿，就会给你写信。,一般现在时的注意点:,1、表客观事实或普遍真理,Theearth_(go)roundthesun.,2、在when,assoonas,until,after,before等到引导的时间状语从句和if引导的条件状语从句中,用一般现在时表示将来.,Ifitdoesntraintomorrow,wellgoonapicnic.,goes,如果明天不下雨，我们将去野营。,IllwritetoyouassoonasIgetthere.,.,用法：,常用时间状语：,谓语动词形式：,2.一般过去时态(TheSimplePastTense),表示过去某个时间发生的动作或存在的状态,动词过去式,yesterday,justnow,last,thismorning,ago,etc,.,一般过去时的注意点:,1、当没有明显的时间状语时,描述几个相继发生过的动作,Ialwaysgotuptoolate,washedmyface,hadaquickbreakfastandhurriedtoschool.,2、since从句中常用一般过去时,Youhaventchangedmuchsincewelast_(meet).,met,.,概念：,常用时间状语：,谓语动词形式：,表示将来某个时间要发生的动作或存在的状态,tomorrow,inthreedays，this,next,soon,etc.,1.will/shall+do2.am/is/aregoingto+do3.am/is/are+doing,3.一般将来时态(TheSimpleFutureTense),.,一般将来时的注意点:,begoingto与will/shall区别：begoingto指当前的、已计划过或思考过的意图和打算；如：Iamgoingtolistentomusic.(我打算听音乐）will/shall表示未事先思考或为计划过的意图如：ItwillbeChristmassoon.(很快就圣诞节了）,.,4.现在进行时态(ThePresentContinuousTense),概念：,常用时间状语：,表示现在或现阶段正在发生的动作,now,listen,look,rightnow,thesedays,atthismoment,etc,am/is/are+现在分词,谓语动词形式：,.,现在进行时的注意点:,2.表达状态、感情和感觉的动词不能用进行时。如：中know,be,want,think,see,hear,like,hope,love,have,1.在表达时，切记不要忘了be动词。am/is/are+doing,.,概念：,常用时间状语：,谓语动词形式：,5.过去进行时态(ThePastContinuousTense),表示过去某一时刻或某一时间段正在发生的动作。,was/were+现在分词,atthistimeyesterday,fromseventoninelastnight,atthatmoment,etc.,.,过去进行时的注意点:,在when,while引导的时间状语从句中,表示主从句中两个动作同时发生时,用过去进行时表示.,1.Whenmyfathergothome,I_alettertomyfriend.(2008宁波中考)writeB.amwritingC.wroteD.waswriting,2._Jimwasmakingapaperplane,hisbrotherwasdoinghomework.,While,较长的动作,.,概念：,常用时间状语：,谓语动词形式：,6.现在完成时态(ThePresentPerfectTense),发生在过去且对现在仍有影响的动作,强调对现在的影响.,have/has+过去分词,already,yet,never,ever,just,before,once,twice,for,since,sofar,inthepastfewyears,bynow,etc,.,1).Tom_never_toAmerica2).-IsTinaathome?-Sorry,she_Shanxi,andshe_thereforthreedays.,现在完成时的注意点:,1.havebeento,havebeenin和havegoneto的区别,hasbeen,hasgoneto,hasbeen,.,短暂性动词和持续性动词,*常见终止性动词：buyborrowarriveputonmarryleavejoindiecomegobegin,.,译下列句子：,、这本书他买了一年了4、这本书他借了三天了。5、我们离开广州六年了。,Hehasboughtthisbookforayear.,Hehashadthisbookforayear.,Hehasborrowedthepenforthreedays.,Hehaskeptthebookfor3days.,WehaveleftGuangzhoufor6years.,WehavebeenawayfromGuangzhoufor6years.,短暂性动词不能跟表示一段时间的状语连用,必须转变成持续性动词,.,3.常见句型1)主句(现在完成时)+since从句(一般过去时).2）Itis+一段时间+since从句(一般过去时).,Itisthreedayssincetheyborrowedthatbook.Ithasbeenthreedayssincetheyborrowedthatbook.,*他们借那本书三天了。,.,概念：,常用时间状语：,谓语动词形式：,7.过去完成时:(ThePastPerfectTense),had+过去分词,bytheendoflastyear,by,before+过去的时间点；由when,before,after,bythetime等引导的状语丛句中，表示主句的动作发生在从句之前。,表示在过去某一时刻前已完成的动作。也称“过去的过去”,.,过去完成时的注意点:,用于宾词从句中，当主句的谓语动词是一般过去时时,一定要注意宾语从句中的时态变化。,Hesaidthathe_thefilmmanytimes.,hadseen,.,概念：,谓语动词形式：,8.过去将来时:(ThePastFutureTense),would+动词原形was/weregoingto+动词原形,表示从过去某一时间看将要发生的动作或存在的状态。常用于宾语从句或间接引语中。,.,8.过去将来时：构成：was/weregoingto+动词原形（打算要）wasaboutto+动词原形（正要）,.,英语的动词时态（一般）,一般现在时：Iworkeighthoursaday.She/Maryworkseighthoursaday.Thesunrisesintheeast.一般过去时：LaurawasborninLondon.HerparentscamefromHongKong.Shestartedhereducationatalocalschool.一般将来时：Wewillhaveatestnextmonth.Heisgoingtobuyhersomeflowers.一般过去将来时：Hewassixty-eight.Intwoyearshewouldbeseventy.Iknewyouwouldagree.,.,英语的动词时态（进行）,现在进行时：Whatareyoudoing?Theyregettingmarriednextmonth.过去进行时：Someonewasfollowingher.Shewasscared.HemetthebridewhilehewasstudyinginCalifornia.将来进行时：Illbewaitingforyououtside.过去将来进行时：Hesaidhedbewaitingformeoutside.,.,英语的动词时态（完成）,现在完成时：Ivelostmykey.Howlonghashebeenill?过去完成时：WhenIarrivedJanehadjustleft.Tomwas23whenourstorybegins.Hisfatherhaddiedfiveyearsbefore.将来完成时：WewillhavehadourexambySeptember20.过去将来完成时：Hetoldthemhewouldhavefinishedby9oclock.,.,英语的动词时态（完成进行）,现在完成进行时：Obviouslyshesbeencrying.Ithasbeensnowingallnight.Thegroundiscoveredwiththicksnow.过去完成进行时：Obviouslyshedbeencrying.Ithadbeensnowingallnight.Thegroundwascoveredwiththicksnow.将来完成进行时：Bytheendoftheyearshellhavebeenactingfortwentyyears.,.,Summary:,一般现在时：is/am/are;do;does;V-s/es一般过去时：was/were;did;V-ed.一般将来时：will+V.;Is/am/are+V.一般过去将来时：would+V.;was/weregoingto+V.现在进行