一般过去时表示过去发生的动作或存在的状态，动词用过去式。口诀：过去事情已发生，动词要用过去式；否定疑问 did 来帮，动词原形要还原。
顺口溜记忆
- 一般过去过去事，动词切记用过去式
- 时间状语 yesterday、ago、last 记心间
- 否定句 didn't 来帮忙，动词原形要还原
- 疑问句 Did 放句首，后面动词原形留
- be 动词过去式，was、were 分单复
要点讲解
- 用法：表示过去某时的动作或状态，常与 yesterday, last week, two days ago, in 2020 等连用
- be 动词过去式：was（I/he/she/it/单数），were（you/we/they/复数）
- 实义动词用过去式：play→played, go→went
- 否定句：didn't + 动词原形：I didn't go to school yesterday.
- 疑问句：Did + 主语 + 动词原形：Did you watch TV last night?
例句解析
- I visited my grandparents last weekend. 上周末我拜访了祖父母。
- She was a teacher five years ago. 五年前她是一名教师。
- They didn't have class yesterday. 他们昨天没上课。
- Did you see the film yesterday? — Yes, I did. 你昨天看那部电影了吗？——是的。
易错提醒
- was/were 的否定和疑问直接在 be 后加 not 或提前 be；实义动词则用 didn't/Did + 原形，两者不能混用。