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she has a soccer改为一般疑问句
Does she have a soccer ?
这是转换后一般疑问句。
陈述句是she has a soccer .
（图片来自网络侵删）
当变为一般疑问句时需要添加助动词does，has 的第三人称单数形式送给do，所以has 变成了have, .简单的说就是有助动词存在的时候，第三人称单数形式只表现在助动词身上，实义动词则不用变。...
1.助词词出现,后面的动词用原型.
助动词是do/does+动词原型,或者是助动词的过去式和过去分词,did/done
2.情态动词出现的话,后面的动词也改用原型.
情态动词+动词原型
情态动词常见有; can /may /must/ need.
以及他们的过去式could / might/ must / needed.
助动词和情态动词就像孙悟空一样,一出现,动词 就要变回原型.
句子中有DOES,所以HAS就变回HAVE
She has a soccer改为一般疑问句有2种:
Has she a soccer?
Does she have a soccer?
当谓语动词为动词have时，若have表示拥有，一般疑问句有2种：
He has a car.
→Has he a car?
→Does he have a car?
若have不是表示拥有，根据情况使用do, does, did
He had bread for breakfast.
→Did he have bread for breakfast?
若have用作助动词构成完成时态，一般疑问句将其移到句首。
He has had a bad accident.
→Has he had a bad accident?
