四年级英语语法：过去式

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英语语法：过去式

表示过去发生的动作或事件， 常和表示过去的时间状语连用，如yesterday, last night, the day before yesterday, 3 days ago,

含有be动词的句子， 将动词变为过去式，am, is的过去式为was，are的过去式为were

I was at the butcher’s.

You were a student a year ago.

The teacher was very beautiful ten years ago.

★变疑问句将be动词移动到句首

Were you at the butcher’s?

Were you a student a year ago?

Was the teacher very beautiful ten years ago?

★变否定句在be动词后面加not

I was not at the butcher’s.

You were not a student a year ago.

The teacher was not very beautiful ten years ago.

★肯定回答否定回答

Yes, I was. No, I was not.

Yes, you were. No, you were not.

Yes, he/she was. No, he/she was not.

★特殊疑问句：

What did you do?

(必背)

不含有be动词的句子，将动词变为过去式

I finished my homework yesterday.

The boy went to a restaurant.

The Sawyers lived at King Street a year ago.

★变疑问句在句首加did， 动词变为原型

Did you finish your homework yesterday?

Did the boy go to a restaurant?

Did the Sawyers live at King Street a year ago?

★变否定句在主语和动词之间加did not

I did not finish my homework yesterday.

The boy did not go to a restaurant.

The Sawyers did not live at King Street a year ago.

★肯定回答及否定回答

Yes, I did. No, I didn’t.

Yes, he did. No, he didn’t.

Yes, they did. No, they did not.

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