小学英语四种时态ppt课件

.,1,小学英语四种时态,1.一般现在时,2.现在进行时,3.一般过去时,4.一般将来时,5.练习,.,2,Grammar,1.一般现在时（PresentSimple）概念:表示习惯、经常性的动作结构:do（主语非三单）、does(主语三单）标志语：usually、often、never、always、sometimes、onceaweek、twiceamonth、everyyear、everyday,.,3,一般现在时的构成1.肯定句（1）主语+am/is/are+表语Theyarenewstudents.他们是新生。（2）主语+行为动词+其它IreadEnglisheverynight.我每天晚上读英语。,.,4,2.否定句（1）主语+am/is/are+not+表语Sheisnotateacher.她不是老师。（2）主语+dont(doesnt)+动词原形+其它Idontlikelearningmath.我不喜欢学习数学。LipingdoesntlikelearningChinese.李苹不喜欢学习汉语。,.,5,3.一般疑问句（1）Am/Is/Are+主语+表语+？Isyourmotheranurse?你妈妈是护士吗？IsPollyabird?波利是鸟吗？（2）Do+主语+动词原形+其它+？DoyoulikelearningEnglish?你喜欢学习英语吗？Doesyourfathergotoworkeveryday?你爸爸每天都上班吗？,.,6,4.特殊疑问句特殊疑问词+一般疑问句+？Whatisyourfather?你爸爸是干什么的？Whatdoyoudoeveryday?你每天做些什么？Whendoesyourmothergotoworkeveryday?你妈妈每天什么时候去上班？,.,7,注意，以下情况要使用一般现在时：表示特征、性格和能力。如：Lifengisatallboy.李锋是一个高个子男孩。Thatsabigtree.那是一棵大树。Myskirtisverynew.我的裙子很新。ShecanspeakEnglish.她会说英语。2.表示经常发生的或习惯性的动作。如：Igetupatseveneveryday.我每天7点起床。Classesbeginateight.8点开始上课。3.表示客观事实和真理。如：Therearesevendaysinaweek.一周有七天。Theearthgoesaroundthesun.地球绕着太阳转。,.,8,动词第三人称单数形式的变化规则1一般情况下，直接加-s，如：cook-cooks,milk-milks2以s.x.sh.ch.o结尾，加-es，如：guess-guesses,wash-washes,watch-watches,go-goes3以“辅音字母y”结尾，变y为i,再加-es，如study-studies,.,9,Exercise,Thetwins_(wash)theclotheseveryday.Sometimeshe_(play)basketballoverthere.Howoften_Sally_(sing)?,wash,plays,.,10,Exercise,4.There(be)fourseasonsinayear.5.Lily_(be)atallgirl.6.I(go)shoppingonceaweek.,are,is,go,.,11,Grammar,现在进行时（PresentProgressive）,概念:表示现在正在发生的动作h或存在的状态结构:be(is,am,are)+doing标志语：Look!、Listen!、now,.,12,Grammar,1、现在进行时的肯定句基本结构为be动词ing.2、现在进行时的否定句在be后加not。3、现在进行时的一般疑问句把be动词调到句首。4、现在进行时的特殊疑问的基本结构为：疑问词+be动词+主语+doing+其它？但疑问词当主语时其结构为：疑问词+be动词+doing+其它?,.,13,动词-ing形式的构成：,writingtaking,gettingrunningswimming,asking,.,14,Exercise,Thetwins_(wash)theclothesnow.Look!He_(play)basketballoverthere.Listen!_Sally_(sing)?4.What_(be)you(do)now.,arewashing,isplaying,.,15,Grammar,一般过去时（PastSimple）概念:表示过去发生的动作或存在的状态结构:did标志语：yesterday、.ago、in1990、lastweek/month、atthattime等,.,16,（一）肯定句：主语+be动词的过去式+过去时间。主语+实意动词过去式+过去时间,一般过去时,动词be的过去时（was,were）tookpictures,climbedmountains,（二）否定句:一般过去时中变否定句，有be动词时，在was或were后面加not，变成wasnt或者werent；在有实意动词的句子中在实意动词前加didnt，将实意动词过去式改为实意动词的原形即可takepictures,climbmountains。,.,17,（三）一般疑问句有be动词的句子中，把be动词提前即可（was/were放主语前），回答时用be动词回答；有实意动词时，需要助动词did的帮助，将did提前即可，也就是主语前加did(动词还原)，回答时用did回答，注意人称的变化及将实意动词过去式改为实意动词的原形.,一般过去时,（四）提问：What?When?Where?How?,.,18,动词-ed形式的构成：,moveddied,carriedcried,stoppedplanned,answered,.,19,got,drank,took,went,swam,ate,cut,were,had,did,came,said,saw,put,不规则过去式,.,20,Exercise,Thetwins_(wash)theclothesyesterday.Thedaybeforeyesterdayhe_(play)basketballoverthere._Sally_(sing)twohoursago?4.What_(do)shedolastnigth?,washed,played,did,.,21,Grammar,1.一般将来时（FutureSimple）概念:表示将要发生的动作或存在的状态结构:will，begoingto标志语：tomorrow，nextweek,thenextday，thisafternoon,thisevening，nextweek(month,year)，intheyear2022,.,22,（一）谓语形式：1.begoingto+V.原形2.will+V.原形3.want用现在时表将来（二）提问谓语：1.Whatis/are+goingtodo?2.Whatwill+主语+do?如：Hewillplaybasketballnextweek.Whatwillhedonextweek?（三）疑问形式：be或will放主语前（some改为any）（四）否定式：be或will后加notwillnot=wont,一般将来时,.,23,Exercise,Thetwins_(wash)theclothestomorrow.Nextweekhe_(play)basketballoverthere._Sally_(sing)thisevening?4.What_(do)shedointheyear2013?,willwash,willplay,will,.,24,小学英语动词的时态练习,一、选择填空：()1.Look!LiPingandLiYing_basketballnow.A.playB.playedC.areplayingD.willplay()2.Whatdidyoudolastnight?Ididmyhomeworkand_TV.A.watchB.watchedC.amwatching()3.CanI_thisbook?A.haveB.hasC.had()4.Itomusicat7:00thismorning.A.listenB.listenedC.listening()5.Hetoschooltomorrow.A.wentB.goC.willgo,.,25,小学英语动词的时态练习,()6.Didyourfatherhisfriendonthe5thofOctober?A.calledB.callC.iscalling()7.Whereyoulastnight?A.wasB.areC.were()8.CanITV?Sure.A.watchingB.watchC.watched()9.Shelikesummer.A.doesntB.dontC.didnt()10.There_atableinJennysroom.A.amB.isC.areD.were,.,26,小学英语动词的时态练习,二、用动词的适当形式填空。1、Tom(swim)intheriverthedayaftertomorrow.2、Why(be)theynothereyesterday?3、Yesterdayafternoonthey(play)footballwiththeirEnglishteacher.4、Itseightoclocknow.Theboys(watch)TV.5、Sheusually(do)herhomeworkintheevening.6、TomandTonycant(swim).7、Whatdoesyourfather_(do)?Hesaworker.8、Look!JimandTom(run)there.,willswim,were,played,arewatching,does,swim,do,arerunning,.,27,过去式之歌过去式构成有方法，一般词尾加ed。如果词尾有个e，直接加d就可以。辅音字母y在尾，变y为i加ed。“一辅重闭”作尾巴，双写之后加ed。标准过去式加ed，少量不规则分别记。am和is对was，are要变were没问题。have和h