一般过去时讲解PPT课件

-,1,一般过去时,1、时态介绍2、判断标志3、一般过去时构成4、一般过去时的句式变化5、谓语变化6、练习,-,2,1.定义：（用法一）一般过去时态表示过去某个时间发生的动作或存在的状态,常和表示过去的时间状语连用;eg:Igotupat7:00yesterday.Myfatherwasatworkyesterdayafternoon（用法二）也表示过去经常或反复发生的动作,常和表示频度的时间状语连用。eg:Healwayswenttoworkbybuslastyear.（含有频度副词：oftenalways等，但主要还是含有过去时间状语）.,-,3,1)与ago连用：amomenttwominutesthreehoursfivedaysoneweeksixmonthsfouryears,ago,2.一般过去时的判断标志：,-,4,last,timenightweekmonthtermMonday,yesterday,morningafternoonevening,thedaybeforeyesterday,2)与last连用,3)与yesterday连用：,-,5,4)与one连用：,one,morningeveningdayMondayafternoon,5)与that连用：,that,morningwinterdayyear,-,6,justnowintheolddaysinthosedaysin1980theotherdayatthattimeonceuponatime,6)其他时间状语：,-,7,3、一般过去时的构成,-,8,所有时态都是通过动词变化来表现的,E.g.Youareright.一般现在时Iwanttogotoschool.Wearedoingourhouseworknow.正在Thebusisleavingat8:00.进行时,-,9,be动词(was,were)助动词(did)主语+谓语情态动词(could,might)行为动词eg:playedeg：Theywerehappy.Heplayedfootball.Youdidyourhomework.,-,10,4、一般过去时句式变换,-,11,一般过去时态句式的构成陈述句式,进入下页,返回首页,-,12,一般过去时态句式的构成疑问句式,返回上页,返回首页,-,13,1.肯定句：主语+行为动词过去式be动词过去式(was/were)e.g.Weplayedfootballyesterday.Iwasintheofficelastnight.Hecouldntswim10yearsago.2.否定句didnot/didnt+行为动词原形wasnot/wasnt+其他成分werenot/werent+其他成分e.g.Iwasnotintheofficelastnight.IdidntsingasongatKangkangsparty.Ididntplayvideogames.,-,14,3.一般疑问句did+主语+行为动词原形was/were+主语+其他成分eg.-Didyougoshoppingyesterday?-Yes,Idid./No,Ididnt.-Wasshe15yearsoldlastyear?4.特殊疑问句特殊疑问词+did+主语+行为动词原形特殊疑问词+was/were+主语+其他成分eg.-Didyougoshoppingyesterday?Whenandwherewereyouborn?,-,15,5、谓语变化,-,16,构成规则,例词,1.一般在动词原形末尾加-edlooklookedplayplayedstartstarted2.结尾是e的动词加-dlivelivedhopehopeduseused,3.末尾只有一个辅音字母的重读闭音节词，先双写这个辅音字母，再加-ed,stopstoppedplanplannedtriptripped,4.结尾是“辅音字母+y”的动词，先变“y”为“i”再加-ed,studystudiedcarrycarried,规则动词过去式的构成,-,17,说明：1、清念/t/，即ed在清辅音后面念/t/,例：finishedhelpedpassedcooked,规则动词-ed的读音,-,18,元浊/d/,即ed在元音，浊辅音后面念/d/,例：borrowedenjoyedcalledmoved,-,19,、/t/d/之后念/id/,即ed在/t/d/音后面念/id/例：wantedshoutedneededcounted,-,20,grow-grewknow-knewthrow-threwblow-blewwrite-wrotedrive-droveride-rodeget-gotforget-forgotlend-lentsend-sentspend-spentsay-said*/sed/pay-paidstand-stoodunderstand-understoodlet-letput-putcut-cutread-read*,am,is-wasare-weredo-didgo-wenthave-hadsee-sawcan-couldmay-mightdig-dugeat-atefind-foundmake-madehear-heardrun-rantake-tookhold-heldspeak-spokeleave-left,keep-keptsleep-sleptsweep-swepttell-toldsell-soldbegin-begansing-sangsit-satswim-swamring-ranggive-gavebring-broughtbuy-boughtthink-thoughtteach-taughtcatch-caughtcome-camebecome-became,不规则动词的过去式,-,21,写出下列动词的过去式：,runborrowgrowwatchwritesmileopenbeginswimcarrystudyfinish,uselivewakekeepsaycleanbuyplaylearnseereadstop,gothinkbehappengivebecomegetrainstaypassanswer,wentthoughtwas/werehappenedgavebecamegotrainedstayedpassedanswered,usedlivedwokekeptsaidcleanedboughtplayedlearnt/edsawreadstopped,ranborrowedgrewwatchedwrotesmiledopenedbeganswamcarriedstudiedfinished,-,22,巧记动词过去时态,动词一般过去时，表示过去发生事；be用was或用were,have,has变had；谓语动词过去式，过去时间坐标志；一般动词加-ed，若是特殊得硬记。否定句很简单，主语之后didnt添；疑问句也不难，did放在主语前；如果谓语之前有did，谓语动词需还原；动词若是was,were,否定就把not添。,返回上页,返回首页,-,23,6、Exercises,-,24,句型转换1TheycametoChinain1990.(变一般疑问句)_they_toChinain1990?2.Iwasillfortwodayslastweek?(同上)_youillfortwodayslastweek?3.Thetwinsgotoschoolonfooteveryday.(同上)_thetwins_toschoolonfooteveryday?4.ShewashedtheclotheslastSunday.(变否定句)She_theclotheslastSunday,Did,come,Were,Do,go,didnt,wash,-,25,5.Sheisgoingtogoshoppingtomorrow.(变否定句)_6.Mymotherlikesherstudents.(变一般疑问句)_7.DoyouwatchTVonSunday?(用lastSunday改写成过去时态的句子)_8.WeiHuaboughtanewpenyesterday.(变否定句)She_anewpenyesterday.,Sheisntgoingtogoshoppingtomorrow.,Doesyourmotherlikeherstudents?,DidyouwatchTVlastSunday?,didnt,buy,-,26,I.改错题HowisJaneyesterday?_Hegetstoschoolatsixyesterday._Heoftengoeshomeat6:00lastmonth._Icanflykitessevenyearsago._Didyousawhimjustnow._TomwasntwatchTVlastnight._Ididmyhomeworklater._Hewaitforyouthreehoursago._Whofinditjustnow?_,was,got,went,could,see,didnt,willdo(amgoingtodo),waited,found,-,27,一般过去时态练习用动词的过去式填空,1._you_(remember)tobuytheoranges?2.Who_(invent)thecomputer.3.We_(go)tothecinemalastnight.Thefilm_(be)verygood.4.Whattime_you_(get)toschoolthismorning?5.Jim_(do)alotyesterday.He_(go)shoppingand_(cook)supper.,返回练习,订正答案,-,28,PRACTISE,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?,didntdoDidfindanyHowlongdidstayWasany,Thatsgreat,-,29,改写句子：,1.L