最全的人教版七年级英语语法总结(5)

--Can’t you see I am doing my homework? 你没看见我正在做作业吗?

20一般过去时

1．一般过去时表示过去某个时间发生的动作或存在的状态，常和表示过去的时间状语连用。一般过去时也表示过去经常或反复发生的动作。 2．Be动词在一般过去时中的变化：

⑴am 和is在一般过去时中变为was。（was not=wasn’t） ⑵are在一般过去时中变为were。（were not=weren’t）

⑶带有was或were的句子，其否定、疑问的变化和is, am, are一样，即否定句在was或were后加not，一般疑问句把was或were放到句首。 3．句中没有be动词的一般过去时的句子

否定句：didn’t +动词原形，如：Jim didn’t go home yesterday. 一般疑问句：在句首加did，句子中的动词过去式变回原形。 如：Did Jim go home yesterday? 特殊疑问句：

⑴疑问词+did+主语+动词原形？如： What did Jim do yesterday?

⑵疑问词当主语时：疑问词+动词过去式？如：Who went to home yesterday? 动词过去式变化规则：

1．一般在动词末尾加-ed，如：pull-pulled, cook-cooked 2．结尾是e加d，如：taste-tasted

3．末尾只有一个元音字母和一个辅音字母的重读闭音节，应双写末尾的辅音字母，再加-ed，如：stop-stopped

4．以“辅音字母+y”结尾的，变y为i，再加-ed，如：study-studied 5．不规则动词过去式：

am,is-was are-were, do-did, see-saw, say-said give-gave, get- got, go-went, come-came, have-had, eat-ate, take-took, run-ran, sing-sang, put-put, make-made, read-read, write-wrote, draw-drew, drink-drank,

fly-flew, ride-rode, speak-spoke, sweep-swept, buy-bought swim-swam, sit-sat bring--brought can-could cut-cut become-became begin-began draw-drew feel-felt find-found forget-forgot hear-heard keep-kept know-knew learn-learnt （learned） leave-left let-let lose-lost meet-met read-read sleep-slept speak-spoke take-took teach-taught tell-told write-wrote wake-woke think-though