英语过去式用法

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.一般过去式结构•结构：主语+动词的过去式+其他。•be动词：was,were•规则动词的过去式•不规则动词的过去式have--hadcan--couldgo--wentcome--cametake--took规则动词过去式的构成•1.一般在动词原形末尾直接加上-edlook--lookedlisten--listenedwait--waited2.以不发音的字母e结尾的动词，去e再加-ed.live--liveddrive--drivedlike--liked3.重读闭音节，先双写，再加-ed.stop--stoppedshop--shoppedbeg--begged4.末尾是辅音字母+y结尾的动词，先变y为i，然后再加-ed.study--studiedtry--triedcarry--carried一般过去式的用法•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.一般过去式句型变化•肯定句结构为：主语+动词的过去式+其它.例：他昨天去图书馆了。否定句结构为：主语+didnot(didn‘t)+动词原形+其它.例：他昨天没去图书馆。一般疑问句的构成：Did+主语＋动词原形＋其它？1)-DidyougotoBeijinglastweek？-Yes，wedid.(No，wedidn‘t.)2)-Didyoumeetthebusinessmanbefore？-No，Ididn’t.(Yes，Idid.)Hewenttothelibraryyesterday.Hedidn'tgotothelibraryyesterday.•4.特殊疑问句的构成：疑问词＋did+主语＋动词原形＋其它？1)-Whatdidyoudolastnight？-Ididmyhomework.2)-Wheredidyougolastweek？-IwenttoShanghaiwithmyparents.一般疑问句口诀•一般过去时并不难，表示过去动作、状态记心间.•动词要用过去式，时间状语句末站.•否定句很简单，didn‘t站在动词原形前，其它部分不要变.•一般疑问句也好变，did放在句子前，主语、动词原形、其它部分依次站.•特殊疑问句也简单，疑问词加一般疑问句记心间.•最后一条请注意，动词过去式要牢记.练习•A、用动词的适当形式填空。•1)It_____(be)Ben’sbirthdaylastFriday.•2)Weall_____(have)agoodtimelastnight.•3)He_____(jump)highonlastSportsDay.•4)Helen_____(milk)acowonFriday.•5)Shelikes_____newspapers,butshe_____abookyesterday.(read)•6)He_____footballnow,butthey_____basketballjustnow.(play)•7)Jim’smother_____(plant)treesjustnow.•8)_____they_____(sweep)theflooronSunday?No,they_____.•9)I_______(watch)acartoononMonday.•10)We_____(go)toschoolonSunday.•B、按要求改写句子。•1)Myfathercametotheshopjustnow.（改为否定句）•Myfather__________totheshopjustnow.•2)IwatchedTVlastnight.（改为一般疑问句，并作否定回答）•-_____you_____TVlast_____?•--_____,__________.•3)Theirteachertoldthemastoryyesterday.（对红字部分提问）•__________theirteacher_____themyesterday?•4)TheywereonthefarmlastSaturday.（改为否定句）•They_____onthefarmlastSaturday.•5)DavidandLiuTaodidtheirhomeworktogetheramomentago.（改为一般疑问句）•_____DavidandLiuTao__________homeworktogether________________.1.Heusuallygetsupearlyinthemorning.But______________________latetoday.2.Sheusuallyworksfrom8a.m.to5p.m.Butyesterday（8-9）______________3._____________________onSundays.TheywenttotheparklastMonday.4._____________________atbreakfast.Butyesterdayhedidn’treadthenewspaper.一般过去时态练习把下列句子改成相应时态