一般过去式PPT

• 不规则动词过去式变化归纳
• • • • • • • • • • • • • • • be→was/were beat→beat tell→told become→became begin→began bring→brought buy→bought cut→cut catch→caught cost→cost run→ran do→did draw→drew drink→drank eat→ate fall→fell leave→left fly→flew go→went let→let put→put have→had meet→met sit→sat see→saw say→said drive→drove find→found get→got learn→learnt make→made lie→lay think→thought sing→sang win→won stand→stood take→took hear→heard grow→grew ride→rode speak→spoke swim→swam read→read teach→taught
Hale Waihona Puke • 在确定的过去的时间里发生的动作或者状态 • eg：1) I flew to Shanghai last week. • 2) Where did you go just now? • 3) She didn't go to the museum yesterday.
• 在过去的某一时间段里经常性或者习惯性发生的动 作 • eg: 1) When I was a little boy, I often played football with my cousin in the park. • 2) My mother used to water flowers at six every morning. • 注意： used to do sth 表示过去习惯性的动作或者状 态，但是现在已经不存在。
• 5) in+具体过去的时间
• in 1998 • 6) 具体的过去时间
• • • • this morning when I was six once upon a time at the age of five
• 动词过去式的变化规则
• 1)一般情况下动词后直接加ed • ask→asked • 2)以不发音e结尾的动词后直接加d • arrive→arrived • 3)以辅音字母加y结尾的动词，变y为i 再加ed • study→studied • 4)以一个辅音字母结尾的重读闭音节 动词，双写最后一个辅音字母再加ed • stop→stopped
一般过去式
• 概念：表示过去某个时间段发生的动作或者状 态，过去习惯性或者经常性的动作、行为。 • 基本结构： was/were+ 动词过去式 • 否定结构：was/were not +动词过去式 • didn't +动词原形 • was not=wasn't were not=weren't • 疑问句式：Was/Were 置于句首 • Did 置于句首+动词原形
• • • • • • • • • • • • •
表示过去式的一些时间状语归纳： 1) yesterday 昨天 the day before yesterday 前天 yesterday morning 昨天早上 2) last +时间 last night 上一晚上 last week 上周 3) ago 很久以前 long long ago 很久之前 two days ago 两天之前 4) just +时间 just now 刚才 just a moment ago 刚才