初中动词时态ppt

Mr.F一般现在时用法：经常性的和习惯性的动作常用时间状语：usually,sometimes,inspring,everyday,inthemorning动词构成：动词原型.work动词+S.（主语是第三人称单数）works否定构成：don’t+动原doesn’t+动原一般现在时一般疑问构成及简答：Do+主语+动原+其它？Yes,Ido.Does+主语+动原+其它？No,hedoesn’t.特殊疑问举例：WhatdoyouoftendoonSundays?Wheredoeshelive?•注意：start,leave,go,come等的一般现在时可表示按规定要发生的未来动作，如列车将离开。客观真理在从句中也用一般现在时.一般现在时的用法•1)经常性或习惯性的动作，常与表示频度的时间状语连用。•Ileavehomeforschoolat7everymorning.•2)客观真理，客观存在，科学事实。•Theearthmovesaroundthesun.•ShanghailiesintheeastofChina.•3)表示格言或警句中。•Pridegoesbeforeafall.骄者必败。•4)现在时刻的状态、能力、性格、个性。•Idon’twantsomuch.•AnnWangwritesgoodEnglishbutdoesnotspeakwell.•练习•1-_____theyoften___theseoldmen?-Yes,they___.A.Do;help;areB.Are;helping;areC.Do;help;doD.Are;helped;are2Theyusually_____TVintheevening.A.watchB.willwatchC.arewatchingD.watches3.Thesun____intheeastand___inthewest.A.raises;setB.rise;setsC.rises;setsD.rises;setCDC现在进行时用法：说话时正在进行的动作或当前一段时间正在进行的动作常用时间状语：am/is/are+现在分词(--ing)am/is/areworking动词构成：now,thesedays否定构成：am/is/are+not+现在分词一般疑问构成及简答：Am/Is/Are+主语+现在分词+其它？Yes,Iam(heis.)No,theyaren’t•特殊疑问举例：Whatareyoudoingnow?Whoisflyingakitethere?注意：go,come,leave,arrive,return,die等的进行时可表示即将要发生的动作.有时表示即将发生的动作。现在进行时的基本用法：a.表示现在(指说话人说话时)正在发生的事情。•Wearewaitingforyou.•b.习惯进行：表示长期的或重复性的动作，说话时动作未必正在进行。•Mr.Greeniswritinganothernovel.(说话时并未在写，只处于写作的状态。)c.表示渐变的动词有：get,grow,become,turn,run,go,begin等。•Theleavesareturningred.•It’sgettingwarmerandwarmer.•d.与always,constantly,forever等词连用，表示反复发生的动作或持续•存在的状态，往往带有说话人的主观色彩.Youarealwayschangingyourmind.练习()1______you___yourhomeworknow?A.Do;doingB.Are;doingC.Were;doingD.Does;do()2___yourmother___shoppingatthemoment?A.Are;doingB.Is;doingC.Is;takingD.Are;taking()3___thechildren___theradio?A.Is;listeningB.Is;listeningtoC.Are;listeningtoD.Are;listeningBCC一般将来时•用法：将来会出现或发生的动作•常用时间状语：thisevening,tomorrow,nextmonth,inafewminutes,•attheendofthisterm动词构成:I,will/shall+动原2,am/is/aregoingto+动词原型3,am/is/are(about)+动词不定式4,am/is/are+coming等现在分词以work为例:will/shallworkam/is/aregoingtoworkam/is/are(about)toworkam/is/arecoming/leaving…否定构成：will/shallnot…am/is/arenot…•特殊疑问句举例:Whatwillyoudotomorrow?Whenarewegoingtohaveaclassmeeting?备注：在if条件或assoonas等时间状语从句中用一般现在时代替一般将来时。（主将从现）Ifitrainstomorrow,Iwillstaysthome.Iwillstayathomeassoonasitrainstomorrow.一般将来时•1)shall用于第一人称，常被will所代替。will在陈述句中用于各人称，在争求意见时常用于第二人称。WhichparagraphshallIreadfirst.Willyoubeathomeatseventhisevening?•2)begoingto+不定式，表示将来。a.主语的意图，即将做某事。Whatareyougoingtodotomorrow?b.计划，安排要发生的事。Theplayisgoingtobeproducednextmonth。c.有迹象要发生的事Lookatthedarkclouds,thereisgoingtobeastorm.3)be+不定式表将来，按计划或正式安排将发生的事。WearetodiscussthereportnextSaturday.4)beaboutto+不定式，意为马上做某事。HeisabouttoleaveforBeijing.注意：beaboutto不能与tomorrow,nextweek等表示明确将来时的时间状语连用练习•1Lookattheclouds.___.A.It'sgoingtorainB.It'llberaining•C.ItwillberainedD.Ifitrains•2There___twoEnglishfilmsnextweek.A.isgoingtobeB.aregoingtohave•C.willhaveD.aregoingtobeAD一般过去时•用法：过去时间发生的或过去经常性的动作常用时间状语：yesterday,lastnight,twodaysago,in2000,atthattime,before，when等引导的含过去时的句子。动词构成：动词过去时（--ed）worked/usedtowork否定构成：didn’t+动原didn’tworkusednot(didn’tuse)towork一般疑问构成及简答举例：Did+主语+动原+其它？特殊疑问句举例：Whatdidhedoyesterday?•Whendidhegetupthismorning?•备注：Hehasopenedthedoor.•（表示过去“开门”的动作对现在的影响是门还开着）•Heopenedthedoor.(不能确定门现在是否开着)•一般过去时的用法1）在确定的过去时间里所发生的动作或存在的状态。Wheredidyougojustnow?2）表示在过去一段时间内，经常性或习惯性的动作。WhenIwasachild,Ioftenplayedfootballinthestreet.WhenevertheBrownswentduringtheirvisit,theyweregivenawarmwelcome练习•()1_____hereandaskhimaboutityesterday?A.DidyoucomeB.Wouldyounotgo•C.Youdidn'tcomeD.Aren'tyougo•()2___he___agoodtimelastSunday?A.Were;wereB.Did;do•C.Did;hasD.Did;have•()3ThestudentshardlystudiedtheEnglishlanguage,•___they?A.didB.didn'tC.wereD.weren'tADA现在完成时•用法:•1、发生在过去的动作且对现在仍有影响的动作，强调对现在的影响.•2、从过去一直延续到现在的动作•常用时间状语：already,just,never,before,recently,inthepastfewyears,•ever,sofar,since+过去的点时间,for+段时间动词构成：have/has+过去分词(--ed)have/hasworked•否定构成：have/hasnot+过去分词•一般疑问构成：Have/Has+主语+过去分词…?•特殊疑问句举例：Whathaveyoudonerecently?HowlonghashelivedinBeijing?•备注：暂时性动词不能与for…,since…,Howlong…等•表示段时间的短语同时使用。比较过去时与现在完成时•1）过去时表示过去某时发生的动作或单纯叙述过去的事情，•强调动作；•现在完成时为过去发生的，强调过去的事情对现在的影响，•强调的是影响。2）过去时常与具体的时间状语连用，而现在完成时通常与模糊的时间状语连用，或无时间状语。•一般过去时的时间状语:yesterday,lastweek，…ago,in1980,inOctober,justnow,•具体的时间状语现在完成时的时间状语for,since,sofar,ever,never,just,yet,till/until,uptonow,inpastyears,always,共同的时间状语:thismorning,tonight,thisApril,now,once，before,already,recently，lately练习•1______you___thenovelthatIlentyoulastweek?A.Did;finishB.Have;finishedC.Are;finishedD.Do;finish2He___inourschoolfor20yearsandhe___herein1977.A.hastaught;cameB.hastaught;hascomeC.taught;cameD.hasteached;hascame•3Theyarelate.Thefilm___forfiveminutes.A.hasbegunB.hasstartedC.hasbeenonD.beganBAC过去进行时•用法：过去某一时刻或某一段时间内正在发生的动作•常用时间状语：atthistimeyesterday,atthattime,•atteno’clockyesterday或when引导的从句•动词构成：was/were+现在分词(--ing)以work为例：was/wereworking否定构成：was/werenot+现在分词一般疑问构成及简答举例:Was/Were+主语+现在分词+其它？Yes,IwasNo,Iwasn’t特殊疑问句举例：Whatwereyoudongthistimeyesterday?Wherewashestandingwhentheteachercamein?练习•()1___theBlacks___TVatsevenyesterday?A.Did;watchB.Are,watchingC.Were;watchingD.Do;watch•()2Thes