助动词do的用法

助动词do的用法

助动词do没有词义，起到帮助实义动词的作用，作谓语最常见的是do,does,did三种形式。

1. 现在式do

（1）肯定式：do否定式：do not缩略否定式:don’t

You speak English.你说英语。

一般疑问句：Do you speak English?你说英语吗？

特殊疑问句:What language do you speak?

I like this red hat.我喜欢这顶红色的帽子。

否定句：I don’t like this red hat.我不喜欢这顶红色的帽子。

一般疑问句：Do you like this red hat?你喜欢这顶红色的帽子吗？

Yes,I do./No,I don’t.

特殊疑问句：Which hat do you like?你喜欢哪一顶帽子？

Don't go there.不要去那里。

Don't be shy不要害羞。

说明：构成否定祈使句只用do，不用did和does。

补充：do做实义动词

When I get home, I always do my homework first. 回家时，我总是先做家庭作业。

He does the homework.

Do it yourself. 自己动手做DIY

2. 现在式第三人称单数does

What does he look like?Is he short or tall?

He is really tall.

He likes playing basketball.

否定句：He doesn’t like playing basketball.

一般疑问句及回答:Does he like playing basketball.?

Yes,he does./No,he doesn’t.

特殊疑问句:Which dress does she like?

She likes that red dress.

否定句：She doesn’t like that red dress.

一般疑问句及回答:Does she like that red dress?

Yes,she does./No,she doesn’t.

特殊疑问句:Which dress does she like?

He likes oranges and apples.

否定句：

一般疑问句及回答:

特殊疑问句：

I like oranges.

否定句：

一般疑问句及回答:

特殊疑问句：

3.过去式

肯定式：did否定式：did not缩写：didn’t

I went to school yesterday.

否定句：I didn’t go to school yesterday.

一般疑问句及回答:Did you go to school yesterday?

Yes,I did./No,I didn’t.

特殊疑问句:When did you go to school?