云南省大理州民族中学 何光云 邮编 （671000 ）
It 引导的强调句型结构为：“It +be 动词的一定形式 +被强调部分 + that /who 从句 ”。这一结构是高考常见句型之一。 现将常见考点分析如下：
一． 考查引导词it和强调人称代词的情况。在该句型中it是固定用法，一般不可用其他词来替换。人称代词是主语时用主格，是宾语时用宾格。例如:Was____that I saw last night at the concert? A. it you B. not you C. you D. that yourself Key: A (MET95’上 海)
二． 考查引导从句的引导词。注意被强调部分除指人时均可用that/who外，其他均可用that，即使强调的是时间，地点或原因状语时，也不可用when, where或why。
例如 ：（1）.Was it during the Second World War____he died ? A. that B. while C. in which D. then Key : A (MET’88)
(2).It was about 600 years ago____the first clock with a face and an hour hand was made. A .that B. until C. before D. when Key : A (MET’97)
(3).It was only when I reread his poems recently_____I began to appreciate their beauty. A. until B. that C. then D. so Key: B (MET’98)
(4).It was at the gate____he told me the news. A. that B. what C. which D. when Key: A (MET’80)
(5)._____was in 1997_____I graduated from the university. A. That , that B. It ,that C. That , when D. It , when Key : B (MET’98 上海)
(6).Was it in 1969_____the American astronaut succeeded____landing on the moon? A. when , on B. that , on C. when , in D. that , in Key: D (MET’94 上海)
三． 考查强调状语时的两种特殊情况：
1).强调由not---until引导的状语或状语从句时，要把not与until放在一起。
例如：(1).It was not____she took off her dark glasses____I realized she was a famous film star. A. when , that B. until , that C. until , when D .when , then Key: B (MET’92)
(2).It was not until 1920____regular radio broadcasts began. A. while B. which C. that D. since Key: C (MET’95)
2).强调原因状语从句时，该从句必须是because引导的原因状语从句，因为只有because表示的语气最强。例如：（1）It was because he was ill that he didn’t go to school yesterday. (2).It is___it is raining hard that they can’t go out for an outing. A. as B. since C. for D.because Key: D
四． 考查强调部分为特殊疑问句的结构，要把特殊疑问词放在句首，其后接一般疑问句语序。其结构是：疑问词+is/was+it+that+其他部分。这类句型如出现在宾语从句中，其结构为：疑问词+it+is/was+that+其他部分。
例如：（1）.Where was it that you met the Frenchman?
(2). What is it that makes man different from other animals?
(3).I really don’t know when it is that she is to arrive in Shanghai.
(4).I can’t quite remember when it was that you started doing the work.
五． 考查强调句型后面加上附加疑问句时，主语要用it，而不能用原来的主语。
例如：It was John and Mike that you saw in the park yesterday, wasn’t it ？
六． 考查强调句型的问句回答语时，肯定用Yes,it is/was.否定用 No,it isn’t/wasn’t. Be动词还可以用复杂形式：情态动词+完成形式。
例如：（1）A: Was it the headmaster who walked by ?
B:It must have been.
(2) __Wasn’t it Dr Wang who spoke to you just now ?
__ _______________.
A.No, he didn’t B. No, he wasn’t C. Yes, he did D. Yes, it was Key: D (MET’96 上海)
七．考查被强调部分是主语或主语从句的情况。当被强调的部分是主语时，who/that引导的从句的谓语应该与被强调部分在人称和数上保持一致。
例如：(1).It is I who am in charge of the factory.
(2).It was they who were making the same mistakes.
(3).Is was___he said____disappointed me.
A. what, that B. that, that C. what, what D .that, what Key: A (MET’99上海)
（4）It was how the young man had learned five foreign languages_____attracted the audience’s interest.
A. so that B. that C. what D. in which Key: B (MET’2000上海)