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none of后的谓语动词用单数复数?哪个用的多?分别怎么用?

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none of后的谓语动词用单数复数?哪个用的多?分别怎么用?
none of后的谓语动词用单数复数?哪个用的多?分别怎么用?
None 可指人也可指物,作主语时,如和 of 连用指不可数名词时,谓语动词要用单数形式;指可数名词时,谓语动词用单、复数均可.如
  None of them has / have seen me before.
  None of this money belongs to me.
  注意:
  1 ) none 可与 of 连用表示范围.
  2 ) none 可用来回答 How many / much…?的特殊疑问句如:
  — How many birds are there in the tree?
  — None.
  — What is in the box?
  — Nothing.
  — Who is in the classroom?
  — No one / Nobody.
  3 ) none 可用来回答“ any + 名词”构成的一般疑问句如:
  — Is there any bread left?
  — No,none at all.
  — Is there anything in the sky?
  — No,nothing.
4 ) none 可用来指代前面提到过的人或物;
  We had three cats once — none of them is alive now.
再问: 我还想问一下,如果是可数名词,什么时候用单数,什么时候用复数?有没有什么条件?
再答: None 可指人也可指物,作主语时,如和 of 连用指不可数名词时,谓语动词要用单数形式;《指可数名词时,谓语动词用单、复数均可。》如   None of them has / have seen me before.(可数名词,故单复都可用)   None of this money belongs to me.(不可数名词,故只能用单数)