How many books does she have?为什么要用does而不用do?解释一下前面不是books吗
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How many books does she have?
为什么要用does而不用do?解释一下
前面不是books吗
she是第三人称单数、故用does
像it、he、she、还有类似、MARY、HER MOTHER等都用does
do是 I WE THEY、用的.
do和does是根据主语来决定的.
因为是she...第三人称单数
she是单三形式
且本句的事态为一般现在时
首先这个句子的意思是问她有几本书?而have(有)在 这里是实意动词,所以提问需要借助助动词do,主语是she(她),是第三人称,并且是单数,句子的时态是一般现在时,在这种时态中,句子的动词要加-s,如果句子中有助动词,那就加在助动词的后面。
关键问题是句子的主语是她,而不是book,决定谓语动词单复数的是主语。
PS:I,we是第一人称,you是第二人称,she,he,it,th...
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首先这个句子的意思是问她有几本书?而have(有)在 这里是实意动词,所以提问需要借助助动词do,主语是she(她),是第三人称,并且是单数,句子的时态是一般现在时,在这种时态中,句子的动词要加-s,如果句子中有助动词,那就加在助动词的后面。
关键问题是句子的主语是她,而不是book,决定谓语动词单复数的是主语。
PS:I,we是第一人称,you是第二人称,she,he,it,they都是第三人称。单复数我想你应该分的清楚吧。
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