作业帮Where does his father work?句中的does为什么不用is?
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Where does his father work?句中的does为什么不用is?
Where does his father work?句中的does为什么不用is?
Where does his father work?句中的does为什么不用is?
因为本句的主语是his father,第三人称单数形式,故用does
如果用is,即 Where is his father work?其中is是一个系动词,work也是一个动词,我们知道一般由动词充当句子的谓语部分,那哪一个才是句子的谓语呢?一句话中出现了两个动词,这在英语中是错误的（除去多个动词并列的或从句等特殊情况）.而does是助动词,它需要与动词原形一同构成句子的谓语部分.所以不能用is.
因为his father是第三人称单数
因为后面是work
该句子的陈述语句形式为 His father works + (地点）. 改为特殊疑问句时，如果句中动词是系动词，则将系动词提前。如果不是系动词，则在疑问词后面加助动词，并且动词要用原型。这里的动词是 'work '，且是第三人称单数，助动词用“does”，works还原为work。...
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该句子的陈述语句形式为 His father works + (地点）. 改为特殊疑问句时，如果句中动词是系动词，则将系动词提前。如果不是系动词，则在疑问词后面加助动词，并且动词要用原型。这里的动词是 'work '，且是第三人称单数，助动词用“does”，works还原为work。
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