BE动词和助动词在这句话中的用法疑问.
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BE动词和助动词在这句话中的用法疑问.
课本上的语句是:why isn't Mrs.lee's cat catching the mice?
可catching应该是动词,理论语句应该用助动词don't/dosen't如下:why dose't Mrs.lee's cat catching the mice?
到底哪个应该是正确的用法?为什么呢?
课本上的语句是:why isn't Mrs.lee's cat catching the mice?
可catching应该是动词,理论语句应该用助动词don't/dosen't如下:why dose't Mrs.lee's cat catching the mice?
到底哪个应该是正确的用法?为什么呢?
![BE动词和助动词在这句话中的用法疑问.](/uploads/image/z/8000249-41-9.jpg?t=BE%E5%8A%A8%E8%AF%8D%E5%92%8C%E5%8A%A9%E5%8A%A8%E8%AF%8D%E5%9C%A8%E8%BF%99%E5%8F%A5%E8%AF%9D%E4%B8%AD%E7%9A%84%E7%94%A8%E6%B3%95%E7%96%91%E9%97%AE.)
why isn't Mrs.lee's cat catching the mice?
catching是动词,"is catching" 是现在进行时句型.
如,I am watching TV. 我正在看电视.
why dose't Mrs.lee's cat catching the mice?
这句话是错的,应该改为:why doesn't Mrs. Lee's cat catch the mice? 要用catch 原型动词.这是一般现在时句型.
catching是动词,"is catching" 是现在进行时句型.
如,I am watching TV. 我正在看电视.
why dose't Mrs.lee's cat catching the mice?
这句话是错的,应该改为:why doesn't Mrs. Lee's cat catch the mice? 要用catch 原型动词.这是一般现在时句型.