一般过去时的规则和不规则变化

（4）中间去e末尾加t
feel keep sleep
felt kept slept



（5）把i变成o ride——rode （6）ow/aw变成ew know——knew grow——grew （7）以d结尾的单词，把d改为t build——built send——sent spend——spent
如：
study —— studied cry —— cried
carry —— carried
worry —— worried

4.重读闭音节结尾的动词末尾只有一个 辅音字母，需双写这个辅音再加-ed.
stop ___ stopped shop ___ stopped
规则动词过去式记忆口诀

过去式构成有规律 一般词尾加-ed 如词尾有个e，直接加-d就可 辅音字母y结尾，变y为i加-ed 辅音重闭结尾，双写之后加-ed
不规则动词的过去式

（1）动词原形和过去式一样 let——let read——read cost——cost put——put cut——cut hurt——hurt

一般过去时的规则动词和不规则动词
旅10
规则动词

1.一般的动词：直接加-ed
如：watch——watched help——helped work——worked
2.以字母e结尾的单词：加-d
如：love——loved live——lived arrive——arrived
Hale Waihona Puke Baidu
3.以辅音字母y结尾的动词：变y为i再加-ed
（2）遇见i改为a swam sang began sat gave drank
swim sing begin sit give drink

（3）过去式以ought和aught结尾的单词 brought bought thought caught taught
bring buy think catch teach