一般过去时解释表示过去发生的事或存在的状态。Tomsuddenlyfellillyesterday.Shelookedverywellwhenilastsawher.表示过去经常反复发生的动作。句中常有alwaysusuallyoftensometimesnever等Ialwaysgotuptoolate,andneverhadenoughtimeforbreakfast.Weoftenwentoutforawalkaftersupper.描述几个相继发生的动作。表示在过去特定时间内一次完成的具有先后顺序的几个动作时，常用一般过去时，需要通过情景判断。Igotupearly,washedmyface,hadaquickbreakfastandhurriedtoschool.Tomwaslate.Heopenedthedoorquietly,movedinandwalkedcarefullytohisseat.追述逝去的人或事。ThebookwaswrittenbyMrLiangShiqiu.LeiFengsetagoodexampletothepeoplethroughtheworld.表示过去将来的动作。在时间条件方式让步状语从句中表示过去将来的动作。ShesaidshewouldcomeifIpromisedtowaitforher.Ididn'tknowwhenshewouldcome,butwhenshecameiwouldletyouknow.常见的时间状语有：yesterday，thedaybeforeyesterday,lastweek/night/year/month/sunday,anhour//minute/2weeks/3yearsago,in1980/1978，justnow，atthattime，then，theotherday，afewdays/momentago，inthepast等句型结构：肯定句：主语+动词-ed+其他。Iwasafootballplayerin1987.Hewenttothetoystoreyesterday.Heplayedfootballverywellinthepast.否定句：主语+didn’t+动词原形+其他。Iwasnotafootballplayerin1987.Hedidn'tgotothetoystoreyesterday.Hedidn'tplayfootballverywellinthepast.一般句：Did+主语+动词原形+其他？Wereyouafootballplayerin1987?Didyouplayfootballverywellinthepast?DidyougotoBeijinglastweek?4.特殊疑问句的构成：疑问词＋did+主语＋动词原形＋其它？Whatdidyoudolastnight?Ididmyhomework.Wheredidyougolastweek?IwenttoShanghaiwithmyparents.动词的过去式的变化规律：1一般动词词尾加-ed,如：walked,looked,finished,2以字母e结尾的动词后加-d，如：lived,decided,noticed,3以辅音字母加y结尾的动词，变y为i，再加-ed，如：hurried,carried,4以元音字母加一个辅音字母结尾的重读闭音节动词，先双写该辅音字母，再加-ed,如：stopped,stepped。以上是规则变化，还有一些动词的过去式是不规则变化，如：do—did,have—had,be—was/were,swim—swam等，参见初一下英语书后不规则动词表。过去进行时解释表示过去某一时间正在进行的动作'Whenhecalledme,iwashavingdinner.Iwaswashingthedishes,whilemotherwasclearingupthetable.表示在过去某一段时间内一直持续进行的动作。Theywereexpectingyouyesterday,butyoudidn'tturnup.Wewereworkingfromtwotofouryesterdayafternoon.表示一个动作发生时，另一个动作正在进行。Whenyouphonedyesterday,iwasplayingcomputerchess.用于描写故事情境或提供故事发生的时间背景。Itwasadarknightanditwassnowingheavily.表示过去将要发生的动作。表示从过去某一段时间看将要发生的动作，这种用法常见于comegos