it引导的强调句型

英语中的it强调句型
一、it强调句型的构成：
lt+be+被强调部分+that（强调部分指人做主语时时用who，指人做宾语时用whom）+句子的其他部分。

例如：
Mary met an old beggar in the street yesterday.
It was Mary who/that met an old beggar in the street yesterday. （强调主语）
It was an old beggar whom/that Mary met in the street yesterday. （强调宾语）
It was yesterday that Mary met an old beggar in the street. （强调时间状语）
It was in the street that Mary met an old beggar yesterday. （强调地点状语）
注意：it强调句型不能强调句子的谓语。

二、not…until结构强调句型的构成：
It+be+not+until部分+that+句子的其他部分。

例如：
He did n't go to bed un til his father came back..
变为强调句型为：
It was n ot un til his father came back that he went to bed. 注意原句中的did n't go 部分中的not提前后，剩下did go变为went.
本文开头提到的两个句子都是not..until结构用于强调句型。

那么把这两句话变回正常
的语序则为：
1）…but he did n't make his most imp orta nt discovery un til after the war.
2） The importa nee of Flem in g's discovery was not fully recog ni zed un til World War II. 三、特殊疑问句强调句型的构成：
特殊疑问词+be+it+that+句子的其他部分（用陈述语序）
例如：
When did you receive the gift ?
对特殊疑问词when做强调：
When was it that you received the gift ?
注意此句中的received是由did力口receive结合而成的。

巩固性练习
练习1选择正确答案
1.It is four years ______ she came to this college.
A.si nee
B.that
C.after
D.whe n
2.lt was not ____ she took off her dark glasses ___ Irealized she was a famous film star.
A.when, that
B.until, that
C.until, when
D.when, then
3.It was on ly whe n I re-read his poems recently _ I bega n to like them.
A.u ntil
B.that
C.then
D.so
4.It was in the lab ____ was taken charge of by Mr.Harris ______ t hey did the experime nt.
A.which, that
B.that, which
C.that, whom
D.which, where
5.It was __ he did __ frightened me.
A.what, that
B.that, that
C.what, what
D.that, what
6. ___ that you left your coa?
A.It was where
B.Where was it
C.Was it where
D.Was that where
7.It __ I that ____ against you.
A.am, is
B.is, is
C.is, am
D.was, am
练习2:根据划线部分把下列句子变成强调句。

1. Peter lent us the mon ey.
2. They want mon ey.
3. All this happe ned on Mon day.
4.I didn ' t hear form her until last summer.
5.Why does every one thi nk I am n arrow- minded
答案及解析
练习1
注意：判断句子是否为强调句型可以先把“ It be..that部分去掉，如果去掉后句子仍然成立，那么这个句子就是强调句型；如果去掉后句子不正确，则不是强调句型。

但是被强调部
分是原句的宾语时，去掉“Itbe…that部分后宾语要放到谓语的后面才是一个通顺的句子。

女口：It was an old beggar whom/that Mary met in the street yesterday.去掉it was …tha后为an old beggar Mary met in the street yesterday。

an old beggar 做met 的宾语，故要放至U met 之后，即: Mary met an old beggar in the street yesterday.
1. A.it用做主语指一段时间fouryears，since的含义为自从”引导时间状语从句。

注意不要和强调句型混淆。

2. B.not…until用于强调句型。

3. B.被强调部分是一个时间状语从句。

4A第一空为定语从句的引导词部分，既可以使用that又可以使用which，第二空为强
调句型部分，应用that,被强调部分为in the lab.
5A第一空为主语从句的引导词部分，使用what做did的宾语，第二空为强调句型部分，
应用that。

6. B.对特殊疑问词where进行强调。

7. C。

在强调句型中，如果强调部分是原句的主语，that后面的谓语动词部分要与主语
保持一致，排除A、B两项，D项中的时态不一致。

练习2
1.It was Peter who lent us the mon ey.
2.It is money that they want.
3.It was on Mon day that all this happe ned.
4.It was not until last summer that I heard from her.
5.Why is it that every one thinks I am n arrow-mi nded ?。