04-4-2 It is/was ….that 及相关句型归纳
1． It i/was +序数词+that从句。意为“是第几次-----”
It is the first time that I have written to a foreign pen friend.
It was the second week that he had been in China.
考例：
----Do you know our town at all?
-----No,this is the first time I--------here.(NMET 1992).
A.was B.have been C.came D.am coming
此句型中可以用this/that来代替it，当主句是is时，从句用现在完成时，当主句是was时，
从句用过去完成时。
2.It is/was+形容词/名词+that。其中,ti是形式主语,that从句是真正的主语。
It is quite important that China becomes an official member of WTO.
考例：-----------is a fact that English is being accepted as an international language.
A.There B.This C.That D.It (NMET !995)
3.It is/was +过去分词 +that从句。这一句型中常用的过去分词有said,reported,kmown,believed,suggested等等。通常译为“据说-----”。同样it是形式主语，从句是真正的主语。
It kmown that Taiwan is part of China.
It is generally believed that teaching is_____it is a science.NMET(2001)
A.as art much as B.much an art as C.as an art much as D.as much an art as
4.It is/was+ 强调部分+that 这一句型可以强调除谓语以外的任何成分。
I saw her in the post office when I was walking by.
It isI that/who saw her in the post office when I was walking by.
It is her that/who I saw in the post office when I was walking byl
It is in the post office that I saw her when I was walking by.
It is when I was walking by that I saw her in the post offce.
注意，在这一句型中，如果被强调部分是人，可用 ，也可用，其余的全用。同是这一句型要注意其句型变化，像一般疑问句，否定句，特殊疑问句等。Eg.
Is it farming that he likes to take up?
Who is it that won the first in the long jump?
Why is it that he came late?
Is is the ability to do the job--------matters not where you come from or what you are.(NMET 2000)
A.it B.that C.one D.this
It was about 6,000 years ago-------the first clock with a face and an hour hand was made.(NMET1997)
A.that B.until C.then D.so
5.It is/was +一般时间+since .在这一句型中，如果since从句的谓语动词是非延续的，则意为“自从----有多长时间了”。
Eg.It is two years since he joined the army.
注意：如果 从句中的动词是延续性的，则意为“自从不-----有多长时间了。”如：
It is ten years since she married.
It is ten years since she was married.（她离婚有十年了）。
另外，在这一句型中，如用It was,since从句则通常用过去完成时。
It was only ten years since he had left here.
-----What was the party like?
------Wonderful.It has been years-----I enjoyed myself so much..(NMET1993)
A.after B.before C.when D.since
6.It is/was/will be+一段时间+before从句。这一句型意为“还有多少时间就-------”。
It won’t be long before you reach your goal.
It won’t be too long ------she finds a suitable job.(上海1992高考)
A.that B.since C.before D.for
7.It+系动词（look,seem,appear）+that 从句。
It look that he has been there before.
It looked that they-----their task before.(上海1992高考)
A.finished B.would finish C.was finishing D.had finishe
8.It+ 动词
+that/whether/what/who/when/where/why.
It has been decided whether the project would be given up.
Does--------matter if he can’t finish the job on time?(NMET1991)
A.this B.that C.he D.it