1、一般过去时1.定义过去某个时间里发生的动作。过去经常性、习惯性动作。2.结构主语V（过去式）主语+was/were+其他例句：1.I ate,slept and watched Bilibili yesterday.2.I like making Tiktok videos.3.Demi was a doctor 5 years ago.4.We were afraid of failing the test.3.变化规则1）规则变化变化原形过去式过去分词直+-edworkworkedworked去e+-edlivelivedlived双+-eddropdroppeddropped“辅音字母+
2、y”改y为i+-edcrycriedcriedstudystudiedstudied2）不规则变化AAAcostcostcosthurthurthurtABBloselostlostbuildbuiltbuiltABCeatateeatenfallfellfallenABAcomecamecomerunranrunAABbeatbeatbeaten4.标志词yesterday 昨天just now 刚刚last week/year上周/去年XX ago 多久之前in+过去时间 在某时间when I was. 当我.口诀：昨天刚刚last前，in+过时when字连5.句型转换口诀1：有 be提be肯定式was/were否定式was/were not = wasnt/werent一般疑问句was/were提前回答Yes,sb was/were、No,sb wasnt/werent”t口诀2：无be求助肯定式主语+过去式否定式主语+didnt+V一般疑问句Did+主语+V回答回答 Yes,sb did/No,sb didnt
