Question

it was not until dark__she found__she thought was the correct way to

solve the problem(that"that)为什么不填when that?

Answer 1

it
is/was
...that...是一个固定句型，这是个强调句型，可以强调除谓语以外的所有句子成分，第一个省略号那么地方是填强调的成分，后面省略号是填句子剩下的成分(即:it
is/was
+被强调的成分+that+剩余部分)用这个句型的强调句把
it
is/was
that
去掉后依然是个完整的句子。
eg.my
father
went
to
see
me
off
yesterday
in
the
airport.
→it
was
my
father
that
went
to
see
me
off
yersterday
in
the
airport.
(对主语进行强调)
→it
was
in
the
airport
that
my
father
went
to
see
me
off
yesterday.(对地点状语尽兴强调)
...
还可以对时间状语进行强调，就不写出来了。
另外:若对not..
until进行强调，则把not放到until前面
eg.it
was
not
until
she
took
off
her
dark
glasses
that
i
found
she
was
a
film
star.