Question

① How long does it take to get to school？ ②It takes me ten minutes. -

③How far is it from your home to school？ ④It is 5 kilometer. It 表示什么 陈述句It是形式主语真正主语是什么 为什么不用真正的主语

Answer 1

①
How
long
does
it
take
to
get
to
school？
②It
takes
me
ten
minutes.
这两个句子中it是形式主语，代替动词不定式to
get
to
school,动词不定式作主语一般用it代替，避免主语太长，而谓语太短，出现头重脚轻的现象。
③How
far
is
it
from
your
home
to
school？
④It
is
5
kilometer.
这两个句子中的it指距离，it可以指距离，时间等作主语
例如：what
time
is
it?
what
day
is
it
today?
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