die的用法It's three years since his mother died.为什么不能用has died什么时候die又用完成时?

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die的用法
It's three years since his mother died.
为什么不能用has died
什么时候die又用完成时?

die 是瞬间动词,不能和表示一段时间的词连用.一楼的说法有误,如果没有一段时间的状语,就可以用现在完成时:
His mother has died for three years(错误)
His mother has died (对)
另外瞬间动词的否定的完成时不受此限制:
He has left home for three years (X)
He has left home (V)
He hasn't left home for three years(V)

it's +时间+since后面用一般过去式,表示至某事发生已经多几久了
也可以说,his mother has died for three years.这里就可以用现在完成时

  我再来拓展一下:
  die v. 死去
  =be dead(表示状态)
  =pass away(委婉的说法)