have的用法

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Have 的用法:

词性有两个:

1.实义动词有,以及构成短语时含义逐渐改变

Have a meeting have a bath have a talk have supper have a class 2.助动词帮助构成现在完成时态,have / has + 动词的过去分词

注意在含有have 的句子中变否定句和一般疑问句时首先要先考虑它的词性,如果是实义动词时,参照以下变否定句和一般疑问句的规则。

肯定句变否定句;

(1)当句子中的第一个动词是be 动词时,(am,is,are,was were等)直接在后面加not 变否定句。

(2)当句子中的第一个动词是情态动词时,(can,must,may.will等)直接在后面加not 变否定句。

(3)当句子中的第一个动词是实义动词原型时,在原形前加don’t 变否定句。

(4)当句子中的第一个动词是实义动词三单时,先把三单变原形,再在原形前加doesn’t变否定句。

(5)当句子中的第一个动词是实义动词过去式时,先把过去式变原形,再在原形前加didn’t 变否定句。

如果have 在句子中是助动词时,直接在后面加not 变否定句。

3.关于have 做实义动词的短语互换练习题。

用下面的短语填空:enjoyed yourself,are drinking,went for,ate,take.

《1》They had a meal at a restaurant. They ( ) a meal at a restaurant.

《2》We had a holiday last month.We ( ) a holiday last month.

《3》They have a bath every day.They ( ) a bath every day.

《4》You had a good time. You ( ).

《5》You are having tea. They ( ) tea.

4.按要求写句型。

(1)His friend Tom has some new storybooks.(改为一般疑问句)

(2)I had a cup of tea last night.(同义句转换)

(3)I have had a haircut today.(改为否定句)

(4)He has had some meat.(改为一般疑问句)

(5)His sister has done her homework.(改为否定句和一般疑问句)

(6)Jim wants a piece of paper.(改为否定句)

(7) He has washed her socks.(改为否定句)

(8)I have cleaned my bedroom.(改为一般疑问句)

(9)I have some paper.(改为一般疑问句)

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