一般过去时——过去做某事
A、构成形式：主语+动词的过去式+其他。
注意：没有be动词的否定句和疑问句中，用didn’t否定和用did提问后，动词一定要用原形。
B、判断依据：
（1）be动词是was、were；
（2）动词加ed；
（3）有表示过去的时间状语，现在学过的常用的表示过去的时间状语有：just now，a moment，yesterday，last week，last night，last weekend，last year，last month，three days ago，two weeks ago，five years ago…
C、句型变换：
I was a teacher five years ago.
I wasn’t a teacher five years ago.
Were you a teacher five years ago?
Yes, I was. / No, I wasn’t.
They played many games yesterday.
They didn’t play many games yesterday.
Did they play many games yesterday?
Yes, they did. / No, they didn’t.
练一练：
A、用动词的适当形式填空。
1) It_____( be ) Ben’s birthday last Friday.
2) We all_____ ( have ) a good time last night.
3) He _____ ( jump ) high on last Sports Day.
4) Helen _____ ( milk ) a cow on Friday.
5) She likes_____newspapers, but she _____a book yesterday. ( read )
6) He _____football now, but they _____basketball just now. ( play )
7) Jim’s mother _____ ( plant ) trees just now.
8) _____they _____ ( sweep ) the floor on Sunday? No, they_____.
9) I _______ ( watch ) a cartoon on Monday.
10) We_____ ( go ) to school on Sunday.
B、按要求改写句子。
1) My father came to the shop just now.（改为否定句）
My father_____ _____ to the shop just now.
2) I watched TV last night.（改为一般疑问句，并作否定回答）
-_____you _____ TV last _____?
-- _____ , _____ _____.
3) Their teacher told them a story yesterday.（对划线部分提问）
_____ _____ their teacher_____them yesterday?
4) They were on the farm last Saturday.（改为否定句）
They _____ on the farm last Saturday.
5) David and Liu Tao did their homework together a moment ago.（改为一般疑问句）
_____ David and Liu Tao_____ _____ homework together _____ _____.
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