1. 一般过去时
肯定句：动词用过去式
否定句：didn't + 动原
疑问句：Did+动原
before, ago, this morning, yesterday, last ...
过去时要注意的问题：
1.有did, didn't就没有 was, were, wasn't,weren't
2. was, were, wasn't, weren't 是表示过去的状态或场所不会出现did, didn't
I was at home yesterday.
You weren't at school yesterday.
They were strong before.
动词过去式变化：
1.直接加
2.有e加d
3.辅音y－i加ed
4.双写加ed
5.特殊变化
例题：
1. My father ____ (not stay) at home yesterday. He _____ (go) to Guangzhou.
2. _____ they ______ (visit) the zoo last Sunday?
3. ---Who _____ (teach) you maths last year?
--- Mr Liu _____ (do).
4. --- When ____ you ____(take) these photos?
--- I ____ (take) them lastweek.
5. Last Saturday my mother _____ (go) shopping and ____ (buy) me a dress.
6. --- When ____ your brother _____ (get) here?
--- He ____ (get) here two daysago.
7. --- ____ Mike ____ (play) computer games.
--- No, he ____ . He ____ (go)to see a gilm.
8. --- When ____ you ____ (begin) to learn English?
--- I ____ (begin) to learnEnglish three years ago.
9. I didn't know you ___ here.
10. It ___ hotter yesterday than it ___ today.
11. Ben ____ a cold last week.
12. ____ _____ many beautiful flowers in our school before.
13. ____ _____ any milk in the bottle before?
14. _____ ______ a heavy rain last night.
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