一般过去式讲解

英语时态之一般过去时讲解Ⅰ.Teachingaimsanddemands1.Reviewpastsimpletense2.Learnhowtodescribewhatsomeonedid3.ReviewtherulesofthepastformsoftheverbsⅡ.TeachingimportanceanddifficultiesTherulesofthepastformsoftheverbsⅢ.TeachingaidsSmallblackboardpapersⅣ.TeachingproceduresStep1Review1.Greeting2.PracticeeverydayEnglish:dopairworkGroup1:Theteachergivestheexampleandpracticeonebyonelikethis,A:WhatdidyoudolastSunday?B:I…Group2:Theteachergivestheexampleandpracticeonebyonelikethis,A:Whatdidshe/hedolastSunday?B:She/he…Step2Presentation一．一般过去时的基本用法1．一般过去时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。1.yesterday或以其构成的短语：yesterdaymorning(afternoon,evening)等；2.由“last+一时间名词”构成的短语：lastnight,lastyear(winter,month,week)等；3.由“时间段+ago”构成的短语：amomentago,ashorttimeago,anhourago等；4.其它：justnow等5.由某些表示过去时态的从句等：whenIwastenyearsold.如：hewaslateyesterday.Ididmyhomeworkthreehoursago.Icamehomejustnow.2.表示过去习惯性、经常性的动作.常与often,always等连用。如：Healwayscarriedabook.二．一般过去式的构成形式1．Be动词在一般过去时中的变化：⑴am和is在一般过去时中变为was。（wasnot=wasn't）⑵are在一般过去时中变为were。（werenot=weren't）⑶带有was或were的句子，其否定、疑问的变化和is,am,are一样，即否定句在was或were后加not，一般疑问句把was或were调到句首。2．句中没有be动词的一般过去时的句子否定句：didn't+动词原形，如：Jimwenthomeyesterday.Jimdidn'tgohomeyesterday.一般疑问句：在句首加did，句子中的动词过去式变回原形。如：Jimwenthomeyesterday.DidJimgohomeyesterday?特殊疑问句：⑴疑问词+一般疑问句？如：Jimwenthomeyesterday.DidJimgohomeyesterday?WhatdidJimdoyesterday?肯定式疑问式否定式疑问否定式IworkedDidIwork?IdidnotworkDidInotwork?He(she,it)workedDidhe(she,it)work?He(she,it)didnotworkDidhe(she,it)notwork?WeworkedDidwework?WedidnotworkDidwenotwork?YouworkedDidyouwork?YoudidnotworkDidyounotwork?TheyworkedDidtheywork?TheydidnotworkDidtheynotwork?Step3Therulesofthepastformsoftheverbs三、规则动词的过去式1.一般情况下，在动词原形后面加-ed。look→lookedplay→playedstart→startedvisit→visited2.以不发音e结尾的动词，在词尾直接加-d。live→liveduse→used3.以“辅音字母+y”结尾的动词，先将y改为i,再加–ed。study→studiedtry→triedfly→flied4.以重读闭音节（即辅音＋元音＋辅音）或r音节结尾，末尾只有一个辅音字母的动词，要先双写这个辅音字母后，再加–ed。stop→stoppedplan→plannedprefer→preferred5.不规则动词的过去式需特殊记忆。如：am(is)-was,are-were（是）,go-went（走）,come-came（来）,take-took（拿）,have(has)-had（有），begin（开始）--began,bring（拿来）--brought,can（能）--could,catch（捉住）--caught,cut（砍，割）--cut,do/does（做，干）--did,draw（画画,拉）--drew,drink（喝）--drank,drive（驾驶）--drove,eat（吃）--ate,fall（跌倒，落下）--fell,feel（感觉）--felt,fly（飞）--flew,get（获得）--got,give（给）---gave,grow（生长）--grew,keep（保持）--kept,know（知道，认识）--knew,learn（学习）--learnt,leave（离开）--left,let（让）--let,lie（躺，平放）--lay,make（使得，做）--made,may（可以）--might,must（必须）--must,read（读）--read,ride（骑）--rode,ring（鸣铃）--rang,run（跑）--ran,say（说）--said,see（看见）--saw,sell（卖）--sold,send（送）--sent,set（放）--set,sing（唱歌）--sang,sit（坐）--sat,sleep（睡觉）--slept,speak（说话）--spoke,spend（花费）--spent,stand（站立）--stood,swim（游泳）--swam,teach（教）--taught,tell（告诉）--told,think（认为）--thought,throw（投掷）--threw,understand（懂得）--understood,wear（穿）--wore,will（将要）--would,win（获胜）--won,Step4Project1.Reviewthepastsimpletense.2.Homework附：一般过去时口诀：动词一般过去时，表示过去发生的事；be用was或用were,have,has变had；谓语动词过去式，过去时间作标志；一般动词加-ed，若是特殊得硬记。否定句很简单，主语之后didn’t添；疑问句也不难，did放在主语前；不含be动词时如果谓语之前有did，谓语动词需还原；动词若是was,were,否定就把not添。含be动时疑问句也不难，要把was，were放在主语前。一般过去时练习题I.请用正确动词形式填空1.Helived(live)inWuxitwoyearsago.2.Thecatate(eat)abirdlastnight.3.Wehad(have)apartylastHalloween.4.Nancypicked(pick)uporangesonthefarmlastweek.5.Imade(make)amodelshipwithMikeyesterday.6.Theyplayed(play)chessintheclassroomlastPElesson.7.Mymothercooked(cook)anicefoodlastSpringFestival.8.Thegirlsdanced(dance)atthepartylastnight.9.Iwatched(watch)acartoononSaturdaylastweek.10.___Did___you__visit_____(visit)yourrelativeslastSpringFestival?11._____Did_he____fly___(fly)akiteonSunday?Yes,he__did____.12.GaoShan____put___(put)upthepicturelastnight.13.I________swept____(sweep)theflooryesterday.14.What__did____she____find___(find)inthegardenlastmorning?15.Herfather_____read__(read)anewspaperlastnight.16.Mike______didn’tgo___________(notgo)tobeduntil12o’clocklastnight.17.Ilistenedbut___heared________(hear)nothing.18.Howmanypeople_____were___(be)thereinyourclasslastterm?II.改错题1．HowisJaneyesterday?___was__________________2．Hegotoschoolbybuslastweek.____went________________________3.Heoftengoeshomeat6:00lastmonth.___went________________________4．Icanflykitessevenyearsago.___________________could___________5.Didyousawhimjustnow.________________see____________________Ⅲ.按要求变换句型1.Frankreadaninterestingbookabouthistory.（一般疑问句）___Did____Frank__read_____aninterestingbookabouthistory?2.Hecleanedhisroomjustnow..（划线提问）What___did_____he__does_____?3.ThomasspentRMB10onthisbook.（否定句）Thomas______didn’tspend________RMB10onthisbook.4.Myfamilywenttothebeachlastweek.（划线提问）Where__________did___________your___family___go____lastweek?