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初中英语语法——一般过去时知识点总结归纳表示过去发生的动作或事件，常和表示过去的时间状语连用，如yesterday,lastnight,thedaybeforeyesterday,3daysago...含有be动词的句子，将be动词变为过去式。am,is的过去式为was,are的过去式为were：Iwasatthebutcher's.Youwereastudentayearago.Theteacherwasverybeautifultenyearsago.★变否定句在be动词后面加notIwasnotatthebutcher's.Youwerenotastudentayearago.Theteacherwasnotverybeautifultenyearsago.★变疑问句将be动词移动到句首Wereyouatthebutcher's?Wereyouastudentayearago?Wastheteacherverybeautifultenyearsago?★肯定回答否定回答Yes,Iwas./No,Iwasnot.Yes,youwere./No,youwerenot.Yes,he/shewas./No,he/shewasnot.★特殊疑问句Whatdidyoudo?(必背)不含有be动词的句子，将动词变为过去式：Ifinishedmyhomeworkyesterday.Theboywenttoarestaurant.TheSawyerslivedatKingStreetayearago.★变疑问句在句首加did，动词变为原型Didyoufinishyourhomeworkyesterday?Didtheboygotoarestaurant?DidtheSawyersliveatKingStreetayearago?★变否定句在主语和动词之间加didnotIdidnotfinishmyhomeworkyesterday.Theboydidnotgotoarestaurant.TheSawyersdidnotliveatKingStreetayearago.★肯定回答及否定回答Yes,Idid./No,Ididn't.Yes,hedid./No,hedidn't.Yes,theydid./No,theydidnot.知识提升：(1)表示过去某个特定时间或某一段时间发生的动作或情况。►.Wevisitedtheschoollastspring.►.IwenttoschoolbybikewhenIwasinmiddleschool.►.Chinawasfoundedin1949.(2)在表示时间或条件等的状语从句中代替过去将来时。►.Shetoldmethatshewouldnotgowithusifitrainedthenextday.►.Theywouldnotleaveuntilshecameback.►.Myfriendpromisedtomarrymeonceshemadeherfinaldecision.一般过去时，现在时和过去时的几组差异：(别以为这很简单，下面的差异你不一定明白。)►.Herbrotherwasachemist.(已去世)►.Herbrotherisachemist.(尚健在)►.That'sallIhadtosay.(话已说完)►.That'sallIhavetosay.(言之未尽)►.Itwassonicetoseeyou.(离别时用)►.Itissonicetoseeyou.(见面时用)►.Janedidalotofworkthismorning.(已是当天下午或晚上)►.Janehasdonealotofworkthismorning.(仍是上午)[本句现在完成时，此乃后话!]测试精编I：(用所给动词的正确进态填空)。1.YesterdayI________(think)thatyouwerenotinBeijing.2.Aliceusually________(sit)inthefrontoftheclassroom,butshe________(sit)atthebackthismorning.3.He________(tell)thenewstousthreedaysago.4.He________(begin)toteachChinesein1990.5.shewouldnottelephonemeifshe________(have)notime.测试精编II1.They________thetripuntiltherainstopped.A.continuedB.didn'tcontinueC.hadn'tcontinuedD.wouldcontinue2.Thelocalpeasantsgavethesoldiersclothesandfoodwithoutwhichthey________ofhungerandcold.(without在这里表条件，你知道吗?)A.woulddieB.willdieC.wouldbedeadD.wouldhavedied3.ItwasnotuntilthenthatIcametoknowthattheearth________aroundthesun.A.movedB.hasmovedC.willmoveD.moves4.Whenallthosepresent________hebeganhislecture.(重点题)A.sitB.setC.seatedD.wereseated5.IfIhadhadtime,Iwouldhavewrittentoyou.ButinfactI________not.A.haveB.wouldhaveC.hadD.hadhadKEYS1.thought2.sits,sat3.told4.began5.had1.B2.A3.D4.D5.C