Unit 18 强调句型
重点：It句型强调结构中连接词的选择
It句型强调结构中强调主语的时候要注意主谓一致
It 型强调结构中be动词的表现形式
It句型强调结构强调的是时间/方式/地点状语时，与关系副词引导的定语从句的区别及与主语从句，表语从句和同位语从句的混淆。
一 ．对于谓语动词的强调
Does / do / did 放在动词前面表示强调。
Eg: I did e you yesterday.
昨天晚上我的的确确看到了你。
I do like swimming.
我的的确确喜欢游泳。
He does do houwork every day.
我的的确确每天都做家务
二．特定的强调句型结构：
英语中“It is/was +被强调部分+who/that+其它”是强调句型的基本构成。这种结构在中学英语课本中频频出现，引起高考命题者的格外关注。下面让我们来sarah connor看与强调句型有关的高考试题：
1．It is not who is right but what is right___is of importance.
A. which B. it C. that D. this
解析：选C。考查强调句型，that是强调句型的结构词，句意是“重要的不是谁正确，而是什么是正确的。”
2．It __we had stayed together for a couple of weeks___I found we had a lot in common.
A. was until; when B. was until; that C. wasn’t until; when D. wasn’t until; that
树童英语怎么样解析：选D 本题考查not…until结构的强调句式。在not…until结构中，如果对until及其后面的部分进行强调，要将not一词提前，形成“It is/was not until…that…”的结构注意尽管强调的是时间，但不可以用when。
为了帮同学们更好地掌握强调句型的用法，笔者依托高考经典试题，对这一句型进行分析和归纳，供同学们参考。
强调句的基本句型是：“It is/was+被强调部分+that/who从句。”被强调部分可以是主语、宾语和状语等，使用时应注意以下几点：
⑴不论强调的是哪一部分，后面都用that，指人时可用who.
It is I that/who am going to the park this Sunday.
说明：当被强调的是主语时，代词要用主格形式。如：
It was I that put forward the question.
⑵当被强调部分是主语的时候要注意主谓一致：
It is I who am doing my homework at home when it rained havily.
It is Lucy and Lily that are twins.
It is you that are having class.
It is not I but Mr. Green who is in charge of this issue.
〔3〕被强调的是时间、地点、原因或方式等状语或状语从句时，不能用when, where, how，用that.
It was in the park that I met her yesterday.
It was yesterday that I met her in the park .
例：（1）.It was there, the police believe,___she was able to activate the recorder she kept in her bag .
A.until B. which C. that D. when
解析：选C 被强调部分为地点状语there，the police believe为插入语
（2）It was after he got what he had desired___he realized it was not so important.
A.that B. when C. since D. as
college是什么意思解析：选A 被强调的是时间状语after he got what he had desired
〔4〕原句的谓语动词如果是现在或将来时态用It is…that/who…，如果原句的谓语动词是过去时态，则用It was…that/who….。
It is he that reads the book .
It was he that read the book .
〔5〕强调句型中be动词的形式：
It may be my book that he is reading.
It might have been the home work that I was doing at home when it rained heavily.
Be动词的四种形式：It is 现在/将来时态
初中补习网站 was 过去时态
表示推测的情态动词 + be 现在/将来时态
表示推测的情态动词 + have been 过去时态
〔6〕对not…until时间状语从句进行强调时，用It is/was not until…that从句，也就是说not和until在强调句中不可分离。
It was not until he came back that I went to bed.
留学点评例:（1） It was not until she got home ___Jennifer realid she had lost her keys.
A.when B.that C.where D.before 、
解析：选B 考查强调句中对not until的强调，是否能辨析出引导词that.
物流师培训
（2）.___the catastrophe happened that the local government realized the importance of substantial development .
A.It was until B. Not until C. Until D.It was not until
解析：选D 考查强调句中not until的用法.考查了 It was not until the catastrophe happened that .
〔7〕世界哮喘日强调句的疑问形式：
宫保鸡丁 英文Was it in the street that I met him yesterday?
sm是什么意思 When was it that he made up his mind to study English?
例：(1) Was it form the lake___he often went fishing___he saved the drowning girl?
A. that; that B. where; where C. where;that D. that; where
解析：选C 解答此题关键是能够对句型进行正确的分析和判断。本题题干为一个强调句式，
it was +被强调部分+that/who，lake后面是个定语从句，由关系副词where引导，第二空才是强调句中的that。
(2) I really don’t know ___ I had my money stolen.
A. when was it that B. that it was when C. where it was that D. it was where that
解析：选C 强调句作know的宾语，语序应为陈述句语序，被强调部分为where，但是强调句为宾语从句时，这类wh-连接代词或副词常置于it之前，作宾语从句的连接词。
强调句型与定语从句及其他句式的区别。
即去掉强调句式结构或经过语序相应调态后，原句仍成立。
It was becau he was ill that he didn’t go to school.
= He didn’t go to school becau he was ill.
It was at midnight that I got back home yesterday.
It was midnight when I got here yesterday.
It was two years ago that I joined the army.
It is two years since I joined the army.
〔8〕强调部分是状语的时候，与关系副词引导的定语从句的区别：
①It is in Beijing that the 29th Olympic Games was held. 强调句
②It is Beijing where the the 29th Olympic Games was held. 定语从句
区分的关键要点：
1强调地点状语in Beijing，that不做任何成分。去掉it be ... that之后句子结构稍微调整，可还原成一个完整的句子，不改变意思。
定语从句中有一种结构为：It be +先行词+关联词+定语从句
关联词的选取要根据先行词表示的含义，定语从句的关联词很多，如that, which, who, whobottle怎么读
m, who, when, where, why和介词+which。
其中关联词在句中充当成分，指代先行词。
举例子加以说明：
(1) It was in 1986 that they got married.
