Question

if引导的条件状语从句 主将从现 哪个是主句 哪个是从句

Answer 1

if
引导的就是条件状语从句，而且你也完全可以根据汉语翻译来辨别。
（we
will
go
to
the
zoo【if
it
doesn't
rain
tomorrow.】(主句)【从句】
i
don't
know
if
it
will
rain
tomorrow.【这是一个if引导的宾语从句:我不知道明天是否会下雨。】

Answer 2

紧跟在if后，被if引导的那个句子是从句。含有主语的句子是主句。
e.g.
He
will
go
hiking
if
it
doesn't
rain
tomorrow.
从句：it
doesn't
rain
tomorrow.
主句：He
will
go
hiking.
e.g.
2
If
I
were
you,
I
would
have
stopped
him
directly.
从句：I
were
you
主句：I
would
have
stopped
him
directly.