it 强调句 grammar
英语必修5Grammar It 的用法
强调句
9. It was 30 years ago that he was born.
牛刀小试：
e.g. It was at the railway station that we first met 16 years ago.
强调句，强调地点状语 at the railway station
主语从句/宾语从句/表语从句/同位语从句
e.g. I've forgotten where it was that you put the dictionary.
我忘了你把词典合。
e.g. It was in the lab which was taken charge of by Professor Harries that they did experiment.
e.g. He didn't go to bed until ten o'clock. 用not...until...结构转换句子 It was not until ten o'clock that he went to bed.
牛刀小试：
1. We did not begin studying French until we entered university. = It was not until we entered university that we began studying French. 2. He did not stop crying until his mother came back. = It was not until his mother came back that he stopped crying. 3. I didn’t hear from her until last summer. = It was not until last summer that I heard from her.
Unit 10Grammar(英语强调句)
(强调宾语） It’s in the park that Jack met your sister yesterday.
(强调状语）
It was yesterday that Jack met your sister in the park.
(强调状语） Jack met your sister in the park yesterday.
句（1）仍是一个完整的句子，是强调句； 句（2）句子不完整，不是强调句，而是含 有定语从句的复合句。答案分别为D、C。
It’s Jack who met your sister in the park yesterday.
(强调主语） It’s your sister whom Jack met in the park yesterday.
4 主谓一致问题
It is they that / who often help me out with his trouble.
It is not I that / who is angry. am
5 对状语或状语从句的强调：连接词只能用that
It was last night that John wore his best suit to the dance. ( 不用when) It was in the reading room that I met her yesterday afternoon. ( 不用where) It was by bike that my father often goes to work except on rainy days. ( 不用how)
He asked me who it was that took his umbrella by mistake.
Grammar it的用法
be+介词短语； 介词短语； 介词短语 e.g. It is against the law to do that. 这样做是违法的。 这样做是违法的。 其他类型的谓语 e.g. It gives me great pleasure to see the movie. 观看这部电影让我很高兴。 观看这部电影让我很高兴。
3. 用于强调结构 要强调句子的某一部分, 通常是主语、 要强调句子的某一部分 通常是主语、 状语、宾语, 可以把it当作先行词 当作先行词。 状语、宾语 可以把 当作先行词。 这种句子的结构是： 这种句子的结构是： “It is/was+被强调部分+that/who+
句子的其他部分” 句子的其他部分”。如果强调的是 人,可以用who, whom代替that。
It remains to be seen whether it will do us harm or good. 对我们有好处还是有害处, 对我们有好处还是有害处 还要等着 瞧。 It was clear enough what he meant. 他的意思很清楚。 他的意思很清楚。
2. 作形式宾语。 作形式宾语。 当复合宾语中的宾语是不定式、 当复合宾语中的宾语是不定式、动 名词、宾语从句时 名词、宾语从句时, 往往把宾语放 在它的补足语后面, 而用 作形式宾 在它的补足语后面 而用it 放在宾语补足语之前。 语, 放在宾语补足语之前。 e.g. I think it no use arguing with him. 我认为和他争吵没有用。 我认为和他争吵没有用。
4. 用作人称代词 代替前文提到的事物。 代替前文提到的事物。 e.g. The frog is not a warm-blood animal. It’s a cold-blooded one.
It在强调句中的用法考点透视
It在强调句中的用法考点透视高中高三英语教研组It一词是高中英语中考查比较频繁的一个词，it含义简单却用法众多，透过近几年的高考试题我们可以看出，各省份高考试题对it的考查十分频繁，尤其是关于it在强调句中的用法的考查更是成为了考查的热点。
以下本文结合近几年高考试题对it在强调句中用法的考查，来对it在强调句中的用法进行一个详细的解析和回顾，通过对照高考真题，归纳讲解it在强调句中的用法，以方便同学们进一步系统牢固地掌握有关it在强调句中的种种用法：1．强调句型的基本结构是：“It is (was) +被强调部分+ that (who) + 其它”被强调部分如果是指人则引导词可以用who，其余情况都用that。
强调句也可以有变体形式，例如：It may have been at the Christmas that John gave Mary a handbag.It might have been John who gave Mary a handbag.强调句的判定方法是：将强调句中的it is/was以及连接词that或who去掉，如果句子仍然成立，成分仍然完整，则说明该句是强调句。
强调句理论上可以强调除谓语以外的任何成分，但是在正式英语中，强调句也一般不强调表语（或叫做主语补足语），例如：It is I who am to blame. （强调主语）It was a new pen that Mother gave me.（强调宾语）It was in the classroom that I left my umbrella.（强调地点状语）It is at eleven that the train leaves.（强调时间状语）It was just as he ordered that I acted.（强调方式状语）It was because he was in trouble that I tried my best to help him.（强调原因状语）It was chairman that they elected him.（强调宾语补足语）相关高考试题：（1）It was after he got what he had desired _______ he realized it was not so important.（06年高考辽宁卷第35题）A. thatB. whenC. sinceD. as（2）David said that it was because of his strong interest in literature _______ he chose the course.（06年高考上海春季招生卷第35题）A. thatB. whatC. whyD. how（3）It is what you do rather than what you say _______ matters.（05年高考天津卷第9题）A. thatB. whatC. whichD. this（4）It was only with the help of the local guide ________.（05年高考上海春季招生卷第37题）A. was the mountain climber rescuedB. that the mountain climber was rescuedC. when the mountain climber was rescuedD. then the mountain climber was rescued 答案：（1）A（2）A（3）A（4）B2．强调句的疑问句形式：强调句的一般疑问句：Is/Was it + 被强调部分 + that /who强调句型的特殊疑问句：疑问词 + is/was it + that/who（1）I just wonder ____ that makes him so excited.（06年高考山东卷第32题）A. why it doesB. what he doesC. how it isD. what it is（2）—____ that he managed to get the information?—Oh, a friend of his helped him.（05年高考山东卷第31题）A. Where was itB. What was itC. How was itD. Why was it答案：（1）D（2）C3．It is/was not until…that…表示“直到……时候才”，也是一个强调句型。
Grammar it 的用法
Grammar --- it的用法【知识点拨】1.人称代词it，是第三人称单数中性，代表前文已提到过的一件事物。
如：1）I love swimming. It keeps me fit. 我喜欢游泳，它能使我保持健康。
当说话者不清楚或无必要知道说话对象的性别时，也可用it来表示。
如：2）It’s a lovely baby. Is it a boy or a girl? 宝宝真可爱，是男孩还是女孩？2.指示代词it，常用以指人。
如：1）Go and see who it is. 去看看是谁。
2）--- Who is making such a noise? —是谁发出这样的吵闹声？--- It must be the children. —一定是孩子们。
3.it无指代性，常用作没有具体意义的主语，出现于表示天气、气候、温度、时间、地点、距离等意义的句子中。
如：1）It is half past three now. 现在是三点半钟。
2）It is six miles to the nearest hospital from here. 这里离最近的医院也有六英里。
3）It was very cold; it snowed and grew dark. 天气很冷；天下着雪，渐渐地变黑了。
4.先行词it.it充当形式主语或形式宾语，本身无意义，只起一种先行引导的作用，先行词不重读。
后面的真正主语或真正宾语通常是不定式结构、-ing分词结构或名词性从句。
（1）用作形式主语1）It is difficult to translate this article. 翻译这篇文章很难。
2）It is no use going there so early. 这么早去那里没有用。
3）It is strange that he did not come at all. 真奇怪，他竟还没来。
在上述诸例中，后置的真正主语可以取代先行it的位置，而出现于句首。
Grammar it 的用法汇总
Book 6Grammar : it 的用法（Unit 3and Unit 4）※It 用作代词※It 作形式主语※It 作形式宾语※It 用于强调句型※It 作为引导词用于其它句型Proverbs(谚语) with “It”①It is never too old to learn.活到老, 学到老。
②It is easier to fall than to rise.摔倒容易爬起来难。
③It never rains but it pours(泼水).不鸣则已, 一鸣惊人。
④It is easy to open a shop but hard to keep it always open.创业容易守业难。
⑤It takes three generations (代,辈) to make a gentleman.十年树木，百年树人。
一、it用作代词1.it 用作人称代词, 指代身份不明的人或者不知道性别的人，特别是指婴幼儿。
1)The baby smiled when it saw its mother.2)—“Who is knocking at the door?”—“It’s me.”3)—“Who is it over there?”—“It must be Tom.”—“No, it can’t be him, for he has gone to Paris.”4)Someone is ringing the doorbell. Go and see__. DA. who is heB. who he isC. who is itD. who it is2.it 用以代替指示代词this/that:在回答含有this/that 的答语中, 用it代替this/that。
1)—Is this your computer?—No, it isn’t.2)—“What’s this/that?”—“It’s a computer.”3)—Whose exercise-book is that?—It’s hers.4)—“Hello! Who is that (speaking)?”—“This is john/I (spea king). 此处不能用it代this3.it 用作非人称代词，指代日期、时间、季节、天气、温度、距离、重量、环境、情况等，常不翻译出来。
高中英语语法复习5 强调句、It的用法、省略和插入语
语法复习五：强调句、It的用法、省略和插入语一、强调句（一）强调句句型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）+ 其它部分。
e.g. 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。
e.g. 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 + 其它部分？e.g. When and where was it that you were born?4、强调句例句：针对I met Li Ming at the railway station yesterday.句子进行强调。
强调主语：It was I that (who) met Li Ming at the railway station yesterday.强调宾语：It was Li Ming that I met at the railway station yesterday.强调地点状语：It was at the railway station that I met Li Ming yesterday.强调时间状语：It was yesterday that I met Li Ming at the railway station.5、注意：构成强调句的it本身没有词义；强调句中的连接词一般只用that, who，即使在强调时间状语和地点状语时也如此，that, who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。
原句谓语动词是一般过去时、过去完成时和过去进行时，用It was … ，其余的时态用It is … 。
语法之强调句型大总结
强调句型总结一．强调句的类型1。
对谓语动词的强调强调谓语动词时,用“do/does/did＋动词原形”来表示，意为“确实，一定，肯定".如:Do be careful when crossing the street.The train does move。
They did come to see you yesterday，but failed to meet you。
2. It强调句型1）It强调句型的基本形式It强调句型最基本的句式结构为:It be＋被强调部分＋that/who ＋句子被强调部分是除谓语之外的其他句子成分，可以是单词、短语,也可以是从句；当强调人时,可以用who 或that；强调其他成分，则只能用that。
如:It is I who/that am right。
（强调主语)2）对not。
.until..。
结构的强调句型为：It is/ was not until+被强调部分+that+其他部分。
I didn't realize she was a famous film star until/till she took off her dark glasses。
→It was not until she took off her dark glasses that I realized she was a famous film star.注意：强调句只用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。
3. 强调句的一般疑问句和特殊疑问句（1) 强调句的一般疑问句的基本句型为：Be＋it＋被强调部分＋that/who＋句子其他成分如：Is it Professor Wang who teaches you English？（2)强调句的特殊疑问句的基本句型为:特殊疑问词＋be＋it＋that/who/whom＋句子其他成分如：What is it that you want me to do?注意：强调句的特殊疑问句用于名词性从句中，要用陈述语序。
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1. Is it in the factory _____ this type of cars are produced? A. which B. where C. that D. / 2. Is it the factory______ this type of cars are produced ? A. which B. where C. that D. /
Practice
1. _____ on Monday night that all this happened? A. Is it B. It is C. Was it D. It was 2. It was _____ the old worker came that we _____ the experiment. A. until; didn’t begin B. not until; began C. until began D. not until; didn’t begin
Where is it that
到底何时 • ____________the Olympic Games are held ? • Why is it that 到底为什么 • _________ the Olympic torch is lighted
到底何地
是什么使姚明打得这么好
What is it that makes Y M play so well?
7. It was only when I reread his poems recently ____ I began to appreciate their beauty. A. until B. that C. then D. so 8. It is the ability to do the job ____ matters not where you come from or what you are. A. one B. that C. what D. it
Penguins (企鹅) hold the board Underwater.
It is penguins that hold the board underwater
Is it penguins that hold the board underwater?
强调结构一般疑问句
Is/Was it + 被强调部分 + that\who\whom+剩余的部分
对not until句式的强调
It is not until + 被强调部分 + that ... “直到…才…”
• We can’t go home until Saturday • It is not until Saturday that we can go home
I didn't realize she was a famous film star until she took off her dark glasses
5. It was seven forty-five _____ he finished the work . A. when B. that C. it D. before 6.It was at seven forty-five _____ he finished the work . A. when B. that C. it D. before
what it is that makes YM play so I don’t know___________________________ well
在从句中使用陈述句语序
.Can you tell me _________ that Liu Xiang likes? • A who it is B. whom it is • C. who is it D. A &B
比较 1. What has caused so many catastrophes?
2. What is it that has caused so many catastrophes?
It 强调句的 特殊疑问句形式
特殊疑问词 +is \was+ it that\who +其余部分
• How is it that the global warming ___________ comes about ？ • Why is it ___________that the global warming comes about ？
2. It is I ____ singing in the garden. A. who are B. who is C. that am D. that is
对 谓语的强调
三do / does / did + 动词原形
e.g 我的确相信他是老实人。
I do believe that he is an honest man. 他们昨天的确去看过你，但没见到你。 They did go to see you yesterday, but failed to meet you.
2. What you do means a lot to me
It is what you do that means a lot to me.
巩固练习：
1.It was ___ he said ____disappointed me. A. what ; that B. that; that C. what; what D. that; what
It was …that…
It was n 2008 that the 29th Olympic Games was held in Beijng for the first time
Was it in 2008 that the 29th Olympic Games was held in Beijng for the first time?
It was__________ that played Yao and Yi against each other in NBA for the first time on Nov. 9 2007.
It was________________ that Yao on Nov 9, 2007 and Yi played against each other in NBA for the first time. for the first time It was_______________ that Yao and Yi played against each other in NBA on Nov 9, 2007.
强调句型
It is used for emphasis
Lead-in
What has caused global warming
Human activity? Natural phenomenon? Human actitivy caused global warming It is human actitivy that caused global warming
3. ---Why didn’t you answer when I spoke to you in the street this morning? ---I ___ but you didn’t hear me. A. did answer B. didn’t want to answer C. couldn’t answer D. was too busy 4. It is in the west of China _____ there is no doubt _____it is going to rain tomorrow. A. where; whether B. that; that C. that; whether D. where; that
→ It was not until she took off her dark glasses that I realized she was a famous film star.
Practice
1. Only when I reread his poems recently, I began to appreciate their beauty. It was only when I reread his poems recently that I began to appreciate their beauty.
It is/was+ 被强调部分 + that+剩余的部分
Miss Shu teaches us English this year
It is …that\who…
The 29th Olympic Games was held in 2008 in Beijng for the first time
１到底是怎样使全球变暖 ２到底是为什么全球变暖
It 强调句的 特殊疑问句形式
特殊疑问词+ is\was it that ---?
特殊疑问词+ is\was it that +其余部分?
• ___________ When was it thatthe Olympic Games first began?