We have some tennis rackets改否定句Helen(海伦) has a baseball bat改一般疑问句请说明为什么,还有什么情况用has和some还有have和does

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We have some tennis rackets改否定句Helen(海伦) has a baseball bat改一般疑问句请说明为什么,还有什么情况用has和some还有have和does
We have some tennis rackets改否定句
Helen(海伦) has a baseball bat改一般疑问句
请说明为什么,还有什么情况用has和some还有have和does

We have some tennis rackets改否定句Helen(海伦) has a baseball bat改一般疑问句请说明为什么,还有什么情况用has和some还有have和does
1.We do not have tennis rackets.
2.Does Helen have a baseball bat?
has have
has常用于第三人称单数形式,而have则用于否定句和疑问句,并且还用于不是第三人称单数的主语.
例:She has a baseball
she does not have a baseball
Dose she have a baseball?
I have a baseball
some any
some和any都是一些的意思,但是some用于肯定句,any用于否定句和疑问句
例:I have some baseballs
I do not hve any baseballs
Do you have any baseballs?
do does
do和dose都是助动词,丹does用于第三人称单数形式,而do则用于不是第三人称单数的主语

We don't have any tennis rackets.
Helen doesn't have a baseball bat.
第三人称单数用has 、第一人称和第二人称用have、肯定句用some、否定句和疑问句用any、

We don't have any tennis rackets.(some一般用于肯定句,而any一般用于否定句和一般疑问句)
Does Helen have a baseball bat?(改一般疑问句时,如果原句中有be动词(am is are及其过去式等),就将be动词提前,如果没有,就加助动词(do或does,当主语是一二人称或名词复数,即:I 和you时,用do;主语是三人...

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We don't have any tennis rackets.(some一般用于肯定句,而any一般用于否定句和一般疑问句)
Does Helen have a baseball bat?(改一般疑问句时,如果原句中有be动词(am is are及其过去式等),就将be动词提前,如果没有,就加助动词(do或does,当主语是一二人称或名词复数,即:I 和you时,用do;主语是三人称或名词单数时,用does,比如Helen),然后谓语动词变成原形就ok哈,比如这道题,has变成have)
补充哈:has是have的单数形式,当句中主语是单数时,就用has,否则就用have;does和do跟has和have是一个意思,是单复数的区别。

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