How far is it from here to the hospital?

问题描述:

How far is it from here to the hospital?
1.主语——it
2.系动词——is
3.表语——“how far”形容词做“表语”
请问:(1)from here to the hospital——在句中的成分是“状语”
如果是状语,那他是“什么状语”呀?
(2)那这个状语是用来修饰“全句”还是用来修饰“形容词:
how far”(即:用来修饰“表语”)

这是一...主系表
it只是形式主语.
真正的主语是from here to the hospital