it做形式主语和as引导原因状语从句有什么区别?

Question

例1-is generally accepted,the social status of women has been greatly improve nowadays.填as用it-beingcoldwe would rather stay at home this evening,it用AS

Answer 1

it做形式主语,代替that句,定式等,避免句重脚轻.
第句,用it,面要加that.
:
It
is
generally
accepted
that
the
...
第二句It
being
cold,表示伴随性状况,it指气
as能用没as引导句,
being
cold非谓语词,没谓语词,构句.
(知道啥,系统让我通,貌似没词敏吧,尝试再发遍)