I think playing computer games too much is bad for us为什么这里要用is?

问题描述:

I think playing computer games too much is bad for us为什么这里要用is?

think加从句,playing computer games too much is bad for us为简单句,主语是playing computer games,用单数is,too much修饰playing computer games

这个是一个主语从句,主句是.....对我们有害,而主句的主语由is之前的内容代替,意思是,过量玩游戏,(指的是这件事)主语是这玩游戏这件事,而不是游戏,所以用第三人称单数is。

  这句句子的主语是playing computer games too much这件事,你可以把它用it代替,所以显然用is.

因为 前面是too much 所以肯定是不可数名词 看作三单 所以用is