Question

It is/was the first/second time that 这一句型中引导的是什么从句 可以省吗

Answer 1

不是表语从句，而是the
first
time为it
is的表语，i
have
met
him
做time的定语。这拍巧里的time后面省略了连接词when（或that）。故该句子缩写后为：it
is
the
first
time.
the
first
time只能唯雀引导时间状语从句，如：
the
first
time
she
saw
him,
she
fell
in
love
with
him.
注：区别于for
the
first
time。本句可改写为it
is
for
the
first
time
that
i
have
met
him.该句可还原为：i
have
met
him
for
the
first
time.可以看出去指贺早掉it
is...that后，句子完整。故改写后的句子是强调句，而且这里的that不可省略。

Answer 2

你好！
这里是棚雀it
引导的主语从句，that后面的是真正的主颂敏语，前链樱早面的it是形式主语，不可以省略