外研版七年级下册语法一般过去时讲解与练习（一）谓语动词构成形式：主语+动词过去时+其他（二）表示过去某时发生的动作或状态（三）标志词：yesterday, just now, ago, this morning, when I was young, last等（四）动词过去式变化规律：1、规则变化：1）一般动词结尾加-ed, 如. walk-walked2）以字母e结尾的动词加- d, 如. live-lived3）以辅音字母加y结尾的变y为i加-ed, 如. hurryhurried4）以辅音字母+元音字母+辅音字母结尾的重读闭音节，双写末尾辅音字母加-ed, 如. stop stopped2、不规则变化表31) am/is - was 是（单）2) are - were 是（复） 3) become - became 成为4) begin - began 开始 5) bring - brought 带来 6) build - built 修建7) buy -
