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there are none,there is none 用法 什么时候用there are none,什么时候用the

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there are none,there is none 用法 什么时候用there are none,什么时候用there is none
there are none,there is none 用法 什么时候用there are none,什么时候用the
there are none------用于可数名词复数:I had five cars last year,but now there are none left.去年我有五辆汽车,而现在我一辆也没有了(用复数谓语),但多数时候,谓语动词也用单三形式,如She had lots of friends at that time,but there was none to help her when she was in trouble.
there is none ------用于不可数名词:She had lots of money last week,but today there is nine left.(用单三谓语)
none=not any/ not a/ not an