Question

名词性从句是什么

Answer 1

一、引导名词性从句的连接词引导名词性从句的连接词可分为三类：连接词：that,whether,if
不充当从句的任何成分）连接代词：what,
whatever,
who,
whoever,
whom,whose,
which.连接副词：when,
where,
how,
why　　
不可省略的连词：1.
介词后的连词2.
引导主语从句和同位语从句的连词不可省略。That
she
was
chosen
made
us
very
happy.We
heard
the
news
that
our
team
had
won.比较：whether与if
均为"是否"的意思。
但在下列情况下，whether
不能被if
取代：1.
whether引导主语从句并在句首2.
引导表语从句
3.
whether从句作介词宾语4.
从句后有"or
not"
Whether
he
will
come
is
not
clear.大部分连接词引导的主语从句都可以置于句末，用
it充当形式主语。It
is
not
important
who
will
go.It
is
still
unknown
which
team
will
win
the
match.