时态一、定义:在英语中,不同时间发生的动作要用不同的动词形式表示,这每一种不同的形式就叫做时态。二、时态的种类:英语中共有16种时态futurepastnow一般将来时一般过去时现在完成时一般现在时现在进行时现在完成进行时before过去完成时过去进行时一般现在时一般过去时一般将来时常用八种时态现在进行时现在完成时过去进行时现在完成进行时过去完成时本节课内容概念:常用时间状语:构成形式:1.一般现在时态(TheSimplePresentTense)表示经常发生的或习惯性的动作或状态。do/does(三单)everyday,always,usually,often,sometimes,onSundays,threetimesaday,etcGrammar(语法)一般现在时1、主系表结构2、行为动词的一般现在时将下列句子变为否定句和一般疑问句1.Iamstudent.2.Sheismysister.3.Theyaremyfriends.讨论:以上句子属于什么结构?含有系动词的一般现在时的句子肯定句、否定句、一般疑问句的结构:1.be动词的一般现在时的句式:肯定句:主语+be+表语(n.,adj.等)否定句:主语+be+not+表语一般疑问句:Be+主语+表语?.特殊疑问句:疑问词+be+主语?将下列句子变为否定句和一般疑问句并回答1.WehaveaTV.2.TheywatchTVeveryday.3.Iplaysports.讨论:怎样将该类句子变为否定句和一般疑问句?否:Wedon’thaveaTVDoyouhaveaTV?Yes,wedo.Nowedon’t.Theydon’twatchTveveryday.DotheywatchTVeveryday?Yes,theydo.No,theydon’t.Idon’tplaysports.Doyouplaysports?YesIdo.No,Idon’t.肯定句:主语+动词原形+….否定句:主语+don’t+动词原形+….疑问句:Do+主语+动词原形+….?想一想:主语有什么特点?主语是非第三人称单数(I/you/we/they/mysisters/TomandJim….)将下列句子变为否定句和一般疑问句。1.ShelikesEnglish.2.Jimhasanorange.3.HewatchesTVeveryday.讨论:怎样将该类句子变为否定句和一般疑问句?Shedoesn’tlikeEnglish.DoesshelikeEnglish?Yes,shedoes.No,shedoesn’t.Jimdoesn’thaveanorange.Yes,hedoes.DoesJimhaveanorange?No,hedoesn’t.Hedoesn’twatchTVeveryday.Yes,hedoes.DoeshewatchTVeveryday?No,hedoesn’t.肯定句:主语(三单)+动词(三单)+….否定句:主语(三单)+doesn’t+动词原形+….疑问句:Does+主语(三单)+动词原形+….?规则动词原形第三人称单数一般在词尾加____playworkleave以字母s,x,ch,sh或部分以o结尾的词加___passteachdo以辅音字母y加结尾的词,变__为__,再加______studyflycrysesyiesplaysworksleavesstudiesfliescriespassesteachesdoes1.Idon’tknowifshe___come.Butshesaysshe____toseeusifshe____free.A.Willcome,willcome,willbeB.comes,comes,willbeC.comes,willcome,isD.willcome,willcome,is→注意一在时间状语从句和条件状语从句中,用一般现在时表示将来(主将从现)2.Hesaidthattheearth____aroundthesun.A.goB.goesC.wentD.willgoB注意二:宾语从句如果说的是客观真理,即使主句是过去时,从句也要用一般现在时。一般现在时的注意点:•Let’scorrect(改错)1.Igoestoschoolatsixeveryday.2.Hedon’tlikeplayingfootball.•3.Theylikesplayinggames.•4.BillwatchsTVintheevening.•5.Doesheusuallyhasaparty?•6.WhatdotheyonSunday?•7.Tonygoesalwaystoschoolateighto’clock.•8.Whattheyeatintheparty?•9.Lilyhaveslunchatschool.•10.Whatdohisparentsusuallygiveshim?Let’scorrect(改错)1.Igoestoschoolatsixeveryday.2.Hedon’tlikeplayingfootball.3.Theylikesplayinggames.4.BillwatchsTVintheevening.5.Doesheusuallyhasaparty?6.WhatdotheyonSunday?7.Tonygoesalwaystoschoolateighto’clock.8.Whattheyeatintheparty?9.Lilyhaveslunchatschool.10.Whatdohisparentsusuallygiveshim?gogoesdoesn’tlikewatcheshavedoalwaysgoesdohasgive单项选择1.We’llgoforapicnicifit____tomorrow.A.doesn’trainB.rainedC.won’trainD.rains2.Ourteachertoldusthesun_intheeast.A.riseB.roseC.risingD.rises3.Timwillcallmeassoonashe_mypackage.A.receiveB.willreceiveC.receivedD.receives中考链接知识结构一般过去时构成用法常用时间动词的过去式1、表示过去某个时间发生的动作或存在的状态。2、表示过去经常或反复发生的动作。yesterdaylastnightin1990twodaysago动词过去式的构成规则动词不规则动词构成读音动词-ed形式的构成:在动词后加-ed以字母e结尾的动词,只+____“辅音字母+y”,变__为__,再+____重读闭音节以一个辅音字母结尾的,_________wantanswermovediecarrycrystopplanwantedmoveddiedcarriedcriedstoppedplannedanswereddyied双写末尾辅音字母+ed清念/t/,元浊/d/;/t//d/之后念/id/规则动词词-ed的读音说明:1、清念/t/,即ed在清辅音后面念/t/,例:finishedhelpedpassedcooked2、元浊/d/,即ed在元音,浊辅音后面念/d/,例:borrowedenjoyedcalledmoved3、/t//d/之后念/id/,即ed在/t//d/音后面念/id/例:wantedshoutedneededcounted1am/is------6are----2have/has----7do---3go-----8see---4take----9buy---5watch---10dance---wasdidwentsawhadwatchedtookweredancedbought请快速说出下列各词的过去式1put-----6sit----2build----7speak--3write---8feel----4find----9bring---5study---10stop--satbuiltfeltfoundwrotespokestoppedstudiedputbrought请快速说出下列各词的过去式Hewaslateforclasslastweek.否定句:一般疑问句:回答:HewasnotlateforclasslastweekWashelateforclasslastweek?Yes,he______.//No,he_______Yes,hewas./No,hewasn’ta).be动词过去式的句式。否定句:是在was/were后面加not,wasnot(wasn't)/werenot(weren't)。一般疑问句:是把was/were提前并放到句首,要求首字母要大写。b).实义动词过去式的句式否定句:主语+didnot(didn‘t)+动词原形+其它。如:Theydidn'thaveagoodtimeyesterday.一般疑问句:Did+主语+动词原形+其它?肯定回答:Yes,主语+did.否定回答:No,主语+didn't.ShefinishedhomeworkontimelastSunday.否定句:一般疑问句肯定回答:否定回答:Shedidn’tfinishhomeworkontimelastSunday.DidshefinishhomeworkontimelastSunday?Yes,shedid.No,shedidn’t.改写句子:1、Lucydidherhomeworkathome.(改否定句)Lucy______________herhomeworkathome.2、Hefoundsomemeatinthefridge.(变一般疑问句)______he___________meatinthefridge?3、Shestayedthereforaweek.(对划线部分提问)_________________she_____there?4、Therewassomeorangeinthecup.(变一般疑问句)_____there_____orangeinthecup?PRACTISE1.ItnearlytwomonthsIboughtthisbicycle.A.is,thatB.was,thatC.is,sinceD.was,since→注意一It在此处指时间,谓语动词用现在时可视为句型”Itis+一段时间since+过去式的从句”一般过去时的注意点:2.Mariato_______toShanghaithreedaysago.A.gotB.hasgotC.reachedD.hasreached3.Ourmonitor_____toShanghaithreedaysbefore.A.gotB.hasgotC.reachedD.hasreached4.He___toShanghaibefore.A.hasbeenB.hadbeenC.wasD.is.注意二ago用于一般过去时before用于完成时,和具体的过去时间连用,用过去完成时.指以前,但没有具体的时间用现在完成时.