初一下英语语法专题----一般过去时一、一般过去时的概念: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,如:lastyear,yesterday,in1990,twodaysago等;也可表示过去经常反复发生的动作,常和often,always等频率副词连用。例如:①Isawhiminthestreetyesterday.昨天我在街上看见他了。②LiMeialwayswenttoschoolonfootlastyear.去年李梅总是步行上学。二、一般过去时的构成:1.be动词的一般过去时的构成:第一人称单数和第三人称单数用was,其余人称用were例如:①Iwastenyearsoldatthattime.②Thereweremanypeoplestandinginfrontofthedoor.2.实义动词的一般过去时的构成:(1)规则动词过去式的构成有四条规则:①一般在动词原形末尾直接加上ed。如:look---lookedwork---workedjump---jumpedstay---stayed②以不发音的字母e结尾的动词,直接加d。如:live---livedclose---closeddance---danced③末尾只有一个辅音字母的重读闭音节,先双写这个辅音字母,再加ed。如:stop---stoppedshop---shoppedprefer---preferred④末尾是辅音字母加y结尾的动词,先变y为i,然后再加ed。如:study---studiedtry---tried(2)不规则动词的过去式需特殊记忆。如:am(is)---wasare---werego---wentcome---cametake---tookhave(has)---had三、一般过去时的几种句型:(1)be动词的一般过去时的句型:①肯定句结构为:主语+was/were+其它。如:Iwasathomeyesterday.Theywerereallyhappyattheparty.②否定句结构为:主语+wasnot(wasn’t)/werenot(weren’t)+其它。如:Iwasn’tathomeyesterday.Theyweren’thappyattheparty.③一般疑问句结构为:Was/Were+主语+其它?如:---Wereyouathomeyesterday?---Yes,Iwas./No,Iwasn’t.---Weretheyhappyattheparty?---Yes,theywere./No,theyweren’t.④特殊疑问句结构为:疑问词+was/were+主语+其它?如:---Wherewereyoulastnight?---Wewereatmyuncle’shouse.---Howwasyourweekend?---Itwasgreat.(2)实义动词的一般过去时的句型:①肯定句结构为:主语+动词的过去式+其它。1如:Hewenttothetoystoreyesterday.Wetooksomepicturesinthepark.②否定句结构为:主语+didnot(didn’t)+动词原形+其它。如:Hedidn'tgotothetoystoreyesterday.Wedidn’ttakeanypicturesinthepark.③一般疑问句结构为:Did+主语+动词原形+其它?如:---DidyougotoBeijinglastweek?---Yes,Idid./No,Ididn’t.---Didhemeetthebusinessmanbefore?---No,hedidn't./Yes,hedid.④特殊疑问句结构为:疑问词+did+主语+动词原形+其它?如:---Whatdidyoudolastnight?---Ididmyhomework.---Wheredidyougolastweek?---IwenttoShanghaiwithmyparents.Exercises:一、按要求完成下列句子:1.Thechildrenarehavingagoodtimeinthepark.(用lastSunday改写)Thechildren_________agoodtimeinthepark__________________.2.LastweekIreadanEnglishbook.(改为否定句)LastweekI__________________anEnglishbook.3.Therewereaboutninehundredpeopleattheconcert.否定句:____________________________________________一般疑问句:________________________________________对划线部分提问:____________________________________4.Therewasonlyoneproblem.否定句:____________________________________________一般疑问句:________________________________________对划线部分提问:____________________________________5.Anndidherhomeworkyesterdayevening.否定句:____________________________________________一般疑问句:________________________________________对划线部分提问:____________________________________6.Mybrotherwasintheparkjustnow.否定句:____________________________________________一般疑问句:________________________________________对划线部分提问:____________________________________7.Shehadsomebreadforlunchtoday.否定句:____________________________________________一般疑问句:_________________________________...