【语法讲解】高中英语强调句型专题讲解
高中英语强调句讲解(共14张PPT)
考点
---Where did you know him? （08高考真题） ---It was on the farm ____ we worked. A. where B. that C. which D. in which 注意：语境 context
---Where did you know Tom?（10市模） ---It was in the hotel ____ we used to be. A. where B. that C. which D. on which
注意:
1. 条件、让步状语从句不能强调 2.强调because引导的原因状语从句，但强调的原因状语不能用as，since来引导 3.可强调so that引导的目的状语从句，但不能强调so that引导的结果状语从句
not until结构强调
not until 结构的强调： We did not get off the bus until it
强调句
语言
形合,指“句中的词语的分句la之nguag意e 合，指“词语或分句之间不
间，用语言形式手段(如关联词) 用语言形式手段连接，句中的
连接起来，表达语法意义和逻 语法意义和逻辑关系通过词语
辑关系”
或分句含义表达”
形合
意合
英语
强调句
中文
助动词do +V．
助动词do的形式随 主语和时态而变化
陈述句句式
强调句型
I met your teacher at the school gate in the morning.
强调主语 It was I who/that met your teacher at the school gate
高三英语强调句知识点
高三英语强调句知识点强调句是英语语法中的一个重要概念，通过强调句可以使某个特定的词或短语在句子中显得更加突出和重要。
了解和正确使用强调句对于高三学生来说是非常重要的，因为它在阅读理解和写作中都有广泛的应用。
本文将介绍高三英语中的强调句知识点，包括强调的形式、用法及注意事项等。
一、强调句的形式强调句的形式有两种：使用"do"、"does"或"did"加在行为动词前，或者使用“it is/was...that”形式。
下面以两种形式分别举例说明：1. 使用"do"、"does"或"did"强调原句：He plays the piano very well.强调句形式：It is he who plays the piano very well.2. 使用“it is/was...that”形式的强调原句：Tom arrived late yesterday.强调句形式：It was Tom who arrived late yesterday.二、强调句的用法1. 强调主语强调句常用来强调句子的主语，使其在句子中更加突出。
例如：原句：She invited me to her birthday party.强调句：It is she who invited me to her birthday party.2. 强调动词强调句也可以用于强调句子中的动词，使其在句中更加突出。
例如：原句：He opened the door.强调句：It was he who opened the door.3. 强调时间、地点等状语强调句还可以用来强调句子中的时间、地点等状语，使其在句子中更加突出。
例如：原句：I met her in the park yesterday.强调句：It was in the park that I met her yesterday.三、强调句的注意事项1. 主语一致性在使用强调句的时候，一定要注意主语的一致性。
高考英语考点详解——强调句型
高考英语考点详解——强调句型1、强调句的构成:It is/was +被强调的成分+ that +其它成分2、关于“被强调成分”⑴“被强调的成分”最常见的是句子的主语、宾语、状语，特殊情况下也可能是宾语补足语、表语等成分。
如：My father met with an old friend of his [in the street] [yesterday].→ It was my father that/who met with an old friend of his in the street yesterday.（主语）→ It was an old friend of his (that/whom) my father met with in the street yesterday.（宾语）→ It was in the street that my father met with an old friend of his yesterday.（地点状语）→ It was yesterday that my father met with an old friend of his in the street.（时间状语）⑵“被强调的成分”通常不能是表语、谓语动词、though/although引导的让步状语从句或whereas引导的从属分句等。
但是，如果当系动词不是be,且表语部分是名词性词组时，强调句也可以强调表语。
如：①The picture is wonderful.→It is wonderful that the picture is. (×)②He becomes head of the department now.→It is head of the department that he becomes now. (√)⑶“被强调的成分”是原因状语从句时，只能强调由because引导，而不能强调由since/as/why等引导的原因状语从句。
高中英语语法强调句讲解 (共24张PPT)
关于It is／was…that… 这个强调句型， 如果把“It is (was)...that ”去掉，还应该 是个完整的句子，不缺任何成分。
由as，since引导的原因状语从句（通常是 已知信息，不需强调）或though， although引导的让步状语从句一般不做被 强调部分。
区分下例两句：
A. didn’t B. did C. really D. would
4. It was the training _____ he had as a young man _____ made him such a good engineer.
A. what; that B. that; what C. that; which D. which; that
A. was B. are C. were D. had been
2. It was not until 1920 _____ regular radio broadcasts began.
A.which B. when C. that D. since
3. She said she would go and she ________ go.
He speaks English well. 这句话，可以通过语句重音来 分别对不同的词进行强调
Example:
A: We need a good student to host the evening party. B: Well, he speaks English well. A: He’s been living in Canada for years. B: He speaks English well but his writing is not very good.
2020备考高考语法--强调句 讲解与练习
2020备考高考英语语法-- 强调句一．强调句的基本用法：强调句的基本形式：It +is/was +被强调的部分+that/ who +原句被强调的部分可以强调主语、宾语、时间状语、原因状语、地点状语和方式状语It was only when the car pulled up in front of the house____ we saw Lily in the passenger seat. (2018年天津)1.强调句与since、before 和when引导句型的区别1).It was/is+ (时刻，或时间点）+ when …..当某事发生时，是几点钟或哪一年如：It was 1997 when Hongkong returned to China.It was five o'clock when we arrived at the small mountain village.It was midnight when he got home.对比：It was at five o'clock ______ we arrived at the small mountain village.( that)2).It+ is/ was+…+that…多用于强调3).It was+一段时间+ before sb did sth. 过了一段时间之后，才….It will be +一段时间before sb do sth. 要过一段时间之后，才…..It won’t be long before sb do sth .不久之后就...It wasn’t long before sb did sth. 不久之后就…如：It was two years before Macao returned to China.It won’t be long before you see him again. 没过多久你就会再见到他。
高中英语强调句解析
高中英语强调句解析强调句（一）强调句句型1、陈述句的强调句型：I t i s/ w as +被强调部分（通常是主语、宾语或状语）+ t hat/ w ho（强调主语且主语指人可以用w ho,当然也可以使用t hat）+其它部分。
强调句式只是把句子中某些词(被强调部分)改变位置,所以把强调结构(i t i s/w as... t hat/w ho)去掉之后,句子一定是完整的e.g.It w as y es t e rd ay t hat he me t Li Pi ng.2、一般疑问句的强调句型：同上，只是把i s/w as提到i t前面。
e.g.Was i t y e s te rd ay t hat he me t Li P i ng?3、特殊疑问句的强调句型：被强调部分（通常是疑问代词或疑问副词）+ i s/ w as +i t+ t hat/w ho +其它部分？e.g.Whe n and w he re w as i t t hat y ou w e re born?4、强调句例句：I me t Li Mi ng at t he rai l w ay st at i on y e st e rd ay.强调主语：I t w as I t hat(w ho)me t Li Mi ng at t he rai l w ay s t ati on y e s te rd ay.强调宾语：I t w as Li Mi ng t hat I me t at t he rai l w ay st at i on y e st e rd ay.强调地点状语：I t w as at t he rai l w ay s t at i on t hat I met Li Mi ng y e st e rd ay.强调时间状语：I t w as y e st e rd ay t hat I me t Li Mi ng at t he rai l w ay st at i on.5、注意：构成强调句的i t本身没有词义；强调句中的连接词一般只用t hat, w ho，即使在强调时间状语和地点状语时也如此，t hat, w ho不可省略；强调句中的时态只用两种，一般现在时和一般过去时。
高中英语2023高考强调句专题复习(强调成分+考点分析)
高考英语强调句一、强调的成分强调结构是：It +is/was+被强调成分+that+句子的剩余部分。
如果我们要强调一个句子的某个部分时，就将要强调的那个部分放在it is/was与that之间，而句子的其余部分原封不动地直接放在that之后。
此结构可强调除谓语动词外的各种成分。
(1) 强调主语It was he that saw Mr.Wang on TV yesterday.是他在电视上看到了王先生。
(2) 强调宾语It was Mr.Wang that he saw on TV yesterday.他昨天在电视上看到的是王先生。
(3) 强调补语It is green that he has pained the door.他把门漆成绿色了。
(4) 强调表语It is a doctor that he has become.他已成为一名教师了。
(5) 强调地点状语It was on TV that he saw Mr.Wang yesterday.他昨天是在电视上看到王先生的。
(6) 强调时间状语It was yesterday that he saw Mr.Wang on TV.是昨天他在电视看到王先生。
(7) 强调方式状语It was by bike that we went to the park.我们是骑自行车去公园的。
(8) 强调各类从句It was what he said that surprised me.是他讲的话让我吃谅。
It is because the book is so useful for my work that I bought it.正因为这本书对我很有用，我才买它。
It was just as he ordered that she acteD.她正是照他吩咐的去做的。
(9) 强调not…until…中的时间状语It was not until 12 o’clock that he went to beD.直到12点他才睡。
高中语法专题解析强调句的结构意义和使用方法
高中语法专题解析强调句的结构意义和使用方法强调句是英语语法中的一个重要概念。
它用来突出一个句子中的某个成分或者某个细节，从而使句子的意思更加明确和强调。
在本文中，我将详细介绍强调句的结构、意义以及使用方法。
一、强调句的结构强调句的结构相对简单，通常由两部分组成：强调副词或者强调短语以及助动词do或did。
强调句的结构可以分为以下几种情况：1. 当强调句中的强调副词或者强调短语用于强调句中的动词时，强调句的结构为：“It is + 强调副词/强调短语 + that/who + 动词 + 其他成分”。
例如：- It is John who broke the window.（是约翰打破了窗户。
）- It was yesterday that I met her.（是昨天我遇见了她。
）2. 当强调句中的强调副词或者强调短语用于强调句中的名词时，强调句的结构为：“It is + 强调副词/强调短语 + that/who + 动词 + 其他成分”。
例如：- It is this book that I want to borrow.（是这本书我想借。
）- It was my father who gave me the gift.（是我爸爸给了我礼物。
）3. 当强调句中的强调副词或者强调短语用于强调句中的形容词或副词时，强调句的结构为：“It + is + 形容词/副词 + that + 动词 + 其他成分”。
例如：- It is so hot that we can't go outside.（天气太热了，我们不能出去。
）- It was very loud that I couldn't hear him.（声音很大，我听不见他。
）二、强调句的意义强调句的使用可以使句子的意思更加明确和强调。
它在交流中的作用非常重要，可以帮助说话者突出某个特定的信息，使得对方注意到这个信息并理解说话者的意图。
(完整)高中英语强调句型详解及答案
强调句型1. 用It is／was…that／who…句型表示强调。
被强调的部分（通常是句子的主语、状语、宾语或宾语补足语）放在is／was的后面，如被强调的是人，则后面可用who，whom等代替。
He met an old friend in the park yesterday.强调主语：强调宾语：强调时间状语：强调地点状语：（二）not … until …句型的强调句1、句型为：It is/ was not until + 被强调部分+ that + 其它部分e.g. 普通句：He didn’t go to bed until/ till his wife came back.强调句：It was not until his wife came back that he went to bed.2、注意：此句型只用until，不用till。
但如果不是强调句型，till, until可通用；因为句型中It is/ was not …已经是否定句了，that后面的从句要用肯定句，切勿再用否定句了。
（三）谓语动词的强调1、It is/ was … that …结构不能强调谓语，如果需要强调谓语时，用助动词do/ does或did。
e.g. He did write to you last week. 上周他确实给你写了信。
2、注意：此种强调只用do/ does和did ，没有别的形式；过去时用did ，后面的谓语动词用原形。
（四）疑问句的强调结构：一般疑问句：Is / Was + it + that +句子的其他部分（陈述语序）。
简单的答语为：“Yes,it is/was.”或“No,it isn’t/wasn’t.”(1)----Was____that I saw last night at the concert?(Shanghai'97)---- No, it wasn’t.A. it youB. not youC. youD. that yourself(2)----"Wasn't it Dr Wang who spoke to you just now?-----_______. (Shanghai'96)A. I didn't know he was.B.Yes, it was.C. No, he wasn't.D.Yes, he did.(3) Was it in 1969 ________ the American astronaut succeeded ________ landing on the moon?(Shanghai'95)A. when ;onB. that; onC. when; inD. that ; in（五）特殊疑问句：特殊疑问词+ is / was + it + that +句子的其他部分（陈述语序）。
高中英语语法强调结构讲解
高中英语语法强调结构讲解英语的强调主要有两种：一是强调非谓语（包括主语、宾语、状语等）；二是强调谓语动词。
一、强调非谓语其基本句型是：“It + is/was + 被强调的成分＋that/who + 其她成分”。
It 没有实意，只起语法作用，引导被强调的部分。
当被强调的是人时，可用who(m)/that, 其他情况用that。
例如：It was I who/that met Jack yesterday. 是我昨天碰到了Jack.（强调主语）It was Jack that/whom I met yesterday. 我昨天碰到的是Jack。
（强调宾语）It was yesterday that I met Jack. 是昨天我碰到了Jack.（强调时间状语）这几句话复原为非强调句就是：I met Jack yesterday.It is people, not things, that are decisive. 决定的因素是人，不是物。
（强调主语）It is because the book is very important for my present job that I bought it. 是因为这本书对我目前的工作很有用，我才买了它。
（强调原因状语）It was in the supermarket that I gave the book to him. 是在那家超市里我给了他那本书。
（强调地点状语）1．强调主语：It was John who broke the window. 是John打破了窗子。
原句：John broke the window.It is this overpass that will be pulled down. 将被拆掉的是这个天桥。
原句：This overpass will be pulled down.It is the people who/that are really powerful. 真正有力量的是人民。
高中英语：强调句语法解析
高中英语：强调句语法解析相信很多小可爱们在平时写作的过程中，常常会想着如何让我们的句子更加丰满，而不仅仅是一个简单的普通句，悄悄地告诉你，强调句是一个不错的选择。
一个普通的句子，若想要强调某个部分，就可以把它变成强调句。
例如：昨天晚上我和Jack 去看了场电影。
你可以强调在“昨天晚上”，“和Jack 去”，“看电影”，都有不同的侧重点。
下面，小简老师为大家整理了强调句的几种类型，一起来学习吧↓↓↓一.用强调结构来强调英语中表示强调时有一个很重要的句型，那就是“it is (was)+被强调成分+that (who)+其他”结构。
比较：It was in the office that he was killed. 他是办公室被杀害的。
It is the children who broke the window. 是孩子们打破窗户的。
第一句的被强调的成分的是in the office，第二句的被强调成分是the children。
其中that和who的区别是：当强调人时，可用that或who，当强调其他成分时，用that。
注意，当强调时间和地点时，不能用when和where 代替that。
在具体使用时，要特别注意这类强调句的疑问句形式。
比较：陈述句：It is because he is ill that he can’t come. 是因为生病他才没有来。
一般疑问句：Is it because he is ill that he can’t come? 是因为生病他才没有来吗?特殊疑问句：Why is it that he can’t come? 他为什么不能来?另外，还要注意not...until…这一句型的强调句莆式，它的基本形式是It is (was) not until…that…。
如：直到我遇到你以后，我才真正体会到幸福。
正常：I didn’t know real happiness until I met you.强调：It was not until I met you that I knew real happiness.直到吃完饭他才现身。
高中英语语法强调句讲解
高中英语语法强调句讲解强调句1. 陈述句的强调句型It is/ was + 被强调部分（通常是主语、宾语或状语）+ that/ who（当强调主语且主语指人）+ 其他部分。
例子 It was yesterday that he met Li Ping.2. 一般疑问句的强调句型同上，只是把is/ was提到it前面。
例子 Was it yesterday that he met Li Ping?3. 特殊疑问句的强调句型被强调部分（通常是疑问代词或疑问副词）+ is/ was + it + that/ who + 其他部分？例子 When and where was it that you were born?4.not … until … 句型的强调句A. 句型为：It is/ was not until + 被强调部分 + that + 其他部分普通句：He didn't go to bed until/ till his wife came back.强调句：It was not until his wife came back that he went to bed.B. 注意：此句型只用until，不用till。
但如果不是强调句型，till, until可通用；因为句型中It is/ was not ... 已经是否定句了，that后面的从句要用肯定句，切勿再用否定句了。
5.谓语动词的强调A. It is/ was ... that ... 结构不能强调谓语，如果需要强调谓语时，用助动词do/ does或didDo sit down. 务必请坐。
Do be careful when you cross the street. 过马路时，务必（千万）要小心啊！1．用助动词“do（does/did）+动词原形”来表示强调：Do write to me when you get there．你到那儿后务必给我来信。
高中英语语法基础 强调句型知识点总结归纳讲解(附同步练习)(有答案)
高中英语语法基础——强调句型知识点归纳讲解（附同步练习）在高中英语中，强调句是重点句型，也是难点句型，更是考试中的高频句型。
作为英语语言表达中一种句型，强调句的使用，目的在于通过强调主语、宾语或者是状语某个部分，来强化表述自己对一句话中某一个点（时间、地点、人物、事件等方面）的情感，态度和意愿。
强调句属于主从复合句，但强调部分只强调句子的某一个成分。
英语中常用的强调结构有：It is (was)+被强调部分(主语、宾语或状语)+that/who...（陈述句）；疑问词what/how/why…+be it that…句型（疑问句）；It was not until… + that…句型。
一）、陈述句强调句型（1）It is/was+被强调部分（通常是主语、宾语或状语）+that/who（当强调主语且主语指人）+从句。
如：原句：Mary did the experiment in the lab yesterday evening.强调主语：It was Mary who did the experiment in the lab yesterday evening.强调宾语：It was the experiment that Mary did in the lab yesterday evening.强调时间：It was yesterday evening that Mary did the experiment in the lab. (注意不用when)强调地点：It was in the lab that Mary did the experiment yesterday evening. (注意不用where)（2）强调谓语动词时，用助动词do/does或did。
如：Do remember to get up early tomorrow, or we will miss the train.Do be careful when you cross the street.He did write to you last week.Mr.White, I did hand in my homework to you this morning.二）、疑问句强调句型1、一般疑问句的强调句型：形式上只需将is / was提前，即：Is / Was+ it+被强调部分+that / who+从句? 如：Was it your brother that made you get hurt?Was it in Beihai Park that they made a date for the first time?2、特殊疑问句的强调句型：被强调部分（通常是疑问词Who / When / What / How / Where / Why...）+is / was+it+that+从句？如：原句：How did he come here ? 强调句：How was it that he came here ?原句：Why did he came late ? 强调句：Why was it that he came late ?原句：When / Where did you met your girlfriend for the first time ?强调句：When and where was it that you met your girlfriend for the first time ?三）、not...until...强调句型1、句型为：It is/was not until+被强调部分+that+从句。
(完整word版)高考英语强调句讲解及练习.docx
强调句专题强调句型的基本结构是： It is/was + 被强调部分 (主语、宾语、宾语补足语或状语等 ) +that/who + 句子的其余部分。
一、连接词。
一般说来，如果被强调部分是人时，用连词that 或 who；被强调的部分是宾语，指人时也可以用whom ；如果被强调部分是物，只能用连词that。
It was John and Mike who/that saw Mary in the street last night.It is Mary whom/ who he often helps .It was in the street that I met him yesterday.二、时态。
如果原句中谓语动词使用的是现在范畴的时态(一般现在时、现在进行时、现在完成 /现在完成进行时、一般将来时、将来进行时、将来完成时等)，用 It is...that... 。
如果原句中谓语动词为过去范畴的时态 (一般过去时、过去进行时、过去完成时、过去将来时等 )，则用It was...that... 。
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 )有时， be 前可使用表示推测的情态动词。
【语法讲解】高中英语强调句型专题讲解
英语强调句一、强调句的基本结构及用法强调句常用来突出说话人要强调的语言信息，给对方以强烈的印象和感受。
译成汉语时，常加上“正是…”等字眼。
其基本结构是：It+ be的适当形式+被强调成分+that (who)+其他成分He bought the book in this shop yesterday.→It was he that bought the book in this shop yesterday. (强调主语he)→It was the book that he boug ht in this shop yesterday. (强调宾语the book) →It was in this shop that he bought the book yesterday. (强调地点状语in this shop)【注意】1.在该强调结构中，It 无任何意义但不可以换成this或者that等。
It is (was)…that (who)…为结构词，假如去掉，剩下部分在语法结构和句子含义上均完整，这一点正是它和定语从句等的本质区别。
2. 关于that与who：当被强调部分指人时，可以用who（被强调部分的人作主语或宾语时）或者whom（被强调部分的人作宾语时)代替that；当被强调部分指物时通常用that；当被强调部分既包括人又包括物，用that不用whoIt was the things and people that they remembered that they were talking about．当被强调部分是代词时，用who不用that。
当强调时间或地点或原因状语时，不能用when / where /why代that(尤其是当这些状语为介词短语时)。
1）It was only when I reread his poems recently ____ I began to appreciate their beauty.A. untilB. thatC. whenD. so2）It was in Qingdao _____ I saw the sea for the first time.A. whatB. thatC. whenD. which3）It was because of bad weather ____ the football match had to be put off.A. soB. so thatC. whyD. that如果被强调的成分有同位语，同位语也应提前。
高中语法知识点精讲-强调句
mistakes. ⑴ It be…that…中 that 没有实际意义，只起连接作用，但指人时，可用 who
代替 that。 It was/who Mum that/who made a promise to send me to there.
② “do/does/did+动词原形”进行强调
这种强调句型只有一般现在时和一般过去时两种，只对肯定的谓语动词 进行强调，没有疑问和否定形式。 Do be careful next time, please. She did tell me about her address.
在祈使句中运用“do+动词原形”的形式，往往不表示命令，而表示强烈 的请求。 Do come on time next time. Do come in and sit down.
I didn’t realize all my mistakes until you told me yesterday. 对主语进行强调：It was I that/who didn’t realize all my mistakes until you told
me yesterday. 对宾语进行强调: It was all my mistakes that I didn’t realize until you told me
C .where
D. before
2. Was it by cutting down staff_________ she saved the firm?
No, it was by improving work efficiency.
强调结构知识精讲讲义高考英语语法
高中英语语法之强调结构知识精讲强调句，用来突出、强调句子的某一部分(主要是句子的主语、宾语、状语等)。
一、强调句型Itis/was...that/who1.被强调部分指人时，用who或that均可。
It was Jenny that/who I saw yesterday.我昨天见到的是珍妮。
2.指物、时间、地点等用that(时间、地点不能用when, where）。
Was it in this palace that the last emperor died?Was it during the Second World War that he died?3.被强调的部分有人、有物时只能用that。
It was about 600 years ago that the first clock with a face and an hour hand was made. It was the things and people that I still remember when I was a child.3.被强调的代词的格式与原句的格式一致。
It is her that he wants to see.他想见的是她。
It is we who want to see her.是我们想见她4.被强调的如是原句的主语,谓语在人称和数上应和原句的主语一致。
It is I who am going to study there.是我要到那儿学习。
5..强调特殊疑问句中的疑问词时,须将疑问词置句首,仍是疑问句。
Who is it that will come to see us?7.强调名词性从句中的特殊疑问词时,须将疑问词置于从句之首。
I don't know what it is that he wants.8.对not ... until ... 强调时,应将not until连在一起。
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英语强调句一、强调句的基本结构及用法强调句常用来突出说话人要强调的语言信息，给对方以强烈的印象和感受。
译成汉语时，常加上“正是…”等字眼。
其基本结构是：It+ be的适当形式+被强调成分+that (who)+其他成分He bought the book in this shop yesterday.→It was he that bought the book in this shop yesterday. (强调主语he)→It was the book that he boug ht in this shop yesterday. (强调宾语the book) →It was in this shop that he bought the book yesterday. (强调地点状语in this shop)【注意】1.在该强调结构中，It 无任何意义但不可以换成this或者that等。
It is (was)…that (who)…为结构词，假如去掉，剩下部分在语法结构和句子含义上均完整，这一点正是它和定语从句等的本质区别。
2. 关于that与who：当被强调部分指人时，可以用who（被强调部分的人作主语或宾语时）或者whom（被强调部分的人作宾语时)代替that；当被强调部分指物时通常用that；当被强调部分既包括人又包括物，用that不用whoIt was the things and people that they remembered that they were talking about．当被强调部分是代词时，用who不用that。
当强调时间或地点或原因状语时，不能用when / where /why代that(尤其是当这些状语为介词短语时)。
1）It was only when I reread his poems recently ____ I began to appreciate their beauty.A. untilB. thatC. whenD. so2）It was in Qingdao _____ I saw the sea for the first time.A. whatB. thatC. whenD. which3）It was because of bad weather ____ the football match had to be put off.A. soB. so thatC. whyD. that如果被强调的成分有同位语，同位语也应提前。
It was from him，his chemistry teacher，that Paul learned to watch carefully in class．3.关于be的适当形式：在强调结构中，无论被强调的是人还是物，单数还是复数，be动词一律用单数is/was形式。
①如果原句的谓语动词时态是现在范畴(一般现在时、现在进行时、现在完成/现在完成进行时、一般将来时、将来进行时、将来完成时等)，就用is。
It is the ability to do the job _____ matters not where you come from or what you are.A. oneB. thatC. whatD. it②如果原句的谓语动词时态是过去范畴(一般过去时、过去进行时、过去完成时、过去将来时等)，就用was。
例如:It was between 1989 and 1999 _____ great changes took place in our hometown.A. whenB. thatC. whichD. because③也可以根据需要用It may/might/must be…that/who…; It must havebeen… that/who… 如It might be Sally that you are thinking of.It might be in the morning that he broke into the house.It might be his father that you are looking for.It must be John that/who will take part in the contest on behalf our class.It must have been her twin sister that you saw.It_____ Peter who has let this secret out because I only told him the news. A. can be B. should be C. might be D. must beIt must have been his brother that you met.4. 关于被强调成分。
在强调句型中，能够被强调的句子成分通常为主语或宾语（名词、代词）、状语（介词短语、时间或地点状语从句或者because 引导原因状语从句）等，但不能强调谓语动词、表语或补语（形容词或名词充当）、although引导的让步状语从句、for、since, as引导的原因状语从句、if条件状语等。
如：强调主语、宾语。
例1．It is these poisonous products ____ can cause the symptoms of the flu, such as headache and aching muscles. (NMET03)A. whoB. thatC. howD. what例2．It was how the young man had learned five foreign languages ______ attracted the audience’s interest. (上海2000 春)A. so thatB. thatC. whatD. in which强调主语从句how the young man had learned five foreign languages。
例3．It was the ability to do the job ____ matters not where you come from or what you are. (NMET2000)A. oneB. thatC. whatD. it强调状语It was at the gate of our school that we gave the visitors a warm welcome. (强调地点状语)It was with great joy that he received the news that his long lost son would soon return home. (强调程度状语)It is by bus that Mary usually goes to school. (强调方式状语)It was three years ago that I came to this school. (强调时间状语)It is when he got back that he knew what had happened. (强调时间状语)It was because he loved my money that he married me. (强调原因状语)注意：a.强调时间、地点、原因或方式状语时，要用that,不能用when, where, why 或how。
如：It was about 600 years ago _____the first clock with a face and an hour hand was made. (NMET'97)A. thatB. untilC. beforeD. whenIt was because of bad weather_____ the football match had to be put off. (2003上海春季)A. soB. so thatC. whyD. thatIt was where there had been a theatre_____ they built a new modern school.A. whereB. in whichC. thatD. sob.使用强调句型对状语进行强调时，有必要将其与下列句型区分开来。
比较下面的句子：1) It was in the evening that the soldiers arrived at the small mountain village. (强调句型)It was evening when the soldiers arrived at the small mountain village. (when引导时间状语从句，it表示时间)2) It was at 3 o'clock that they came back. (强调句型)It was 3 o'clock when they came back. (when引导时间状语从句，it表示时间)3) It is for three hours that they have been back. (强调句型)It was three hours before they came back. (before引导时间状语从句，it表示时间)It is three hours since they came back. (since引导时间状语从句，it表示时间)再如：It was raining when they came back.It is true that he once went to Canada.It is a surprise that Mary should have won the first prize.c.强调部分为介词短语：强调部分为介词短语时，①应特别注意能引起误解的干扰选项。
②表示时间或地点时，应注意与定语从句的区别。
1. It was through Jack _____ Mary got to know Bob .A. whoB. whomC. howD. that2. It was __c___ great care that they did the job.A. forB. aboutC. withD. in3. It was on October 1st 1949 _____ new China was founded .A. whichB. whenC. asD. that4. Was it in this palace _____ the last emperor died?A. thatB. in whichC. in whereD. whichd.特别提示：对“not...until...”结构的强调，要用“It is/was not until...that...”这一固定句型。