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高中英语it的用法PPT课件

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高中英语 语法代词 it的用法课件(共32张ppt)

高中英语 语法代词 it的用法课件(共32张ppt)


2) It was not until __C__ that ____ to prepare his lessons. A. did his father come in, the boy began B. did his father come in, did the boy begin C. his father came in, did the boy begin D. his father came in, the boy began
3) I hope that it will be fine Weather tomorrow.
4) It’s spring now.
Season
5) It’s quiet here. Circumstance
2. 用作人称代词, 代表前面提到的人 或事。
1) Who’s it? _It_’_s me. 2) Look at the picture. _I_t is a picture
Exercises
1) It was not _C__ she took off her dark
glasses ___ I realized she was a
famous film star.
A. when, that B. until, when
C. until, that
D. when, then
3. I don’t think __D_ possible to master a foreign language without much memo ry work. A. this B. that C. its D. it
4. Was it during the Second World War _A__ he died? A. that B. while C. in which D. then
高中英语It的用法

高中英语It的用法


9. Meeting my uncle after all these years was an unforgettable moment, _____ I will always B treasure. Ａ．that Ｂ．one Ｃ．it Ｄ．What A 10. I prefer a flat in Inverness to ______in Perth, because I want to live near my Mom’s. A. one B. that C. it D. this 11. Cars do cause us some health problems — in B fact far more serious _______ than mobile phones do. A．one B．ones C．it D．those
Grammar It 的用法
1. it 作形式主语,代替不定式、动名词短语或主 语从句表示的真正主语： It is hard to deal with him. It is impossible for her to come. It is no good/use waiting here. It is evident that he is lying. It is not clear whether he will go or not. 2. it 作形式宾语,代替不定式、动名词短语或宾 语从句表示的真正宾语： I think it easy to repair the radio. I find it hard for her to do the math problems. He felt it no use learning English. I think it necessary that we should take exercise.
高中英语课件-代词it用法zxx

高中英语课件-代词it用法zxx


_距__离__, __地__点___等 two miles away. It lies
in the south of the
SheeB: It is an eagle.
Summary 3
'it' 可用作指示代词, 代替_t_h_i_s_ 或_t_h_a_t_.
by bike every day.
7.It’s not easy ___fo_r____ us to learn a foreign language.
8. It’s very kind __o_f you to help me..
9.Children find_i_t_ interesting to play
7)It(the advice) might help you to stop and strengthen your resolve. (Line 29) 人称代词(指代前面提到的advice)
8)It is not easy to stop smoking. (Line 1,Page 19) 形式主语
Ⅱ. 形式主语
Sentence pattern one 句型一:
It + _b_e_ + a_d__j.\_n_._\_p__.p_ + _t_o_d_o__s_th_._ _d_o_i_n_g_s_t_h_.
真主
_t_h_a_t _从__句__
It is clear /obvious/true/possible/certain…that It is said (reported, learned,believed…) that It is a pity ( a shame ... ) that .. It seems, looks, appears that... It occurs to/strikes sb that某人突然想到 It looks ( seems ) as if .. It doesn't matter whether ( if ) ... It is no good (use ) doing sth It takes sb. … to do sth. It is time for sb to do…
高中英语 语法 it的用法

高中英语 语法 it的用法

it was+ 时间段 + before + 主语 + did it will be + 时间段 + before + 主语 + do/ does It has been three years since his father died. it has been/is + 时间状语 + since + 从句
判断下列句子是否是强调句。
1. It’s in that very seat that the teacher sat down.
2. It is clear that not all boys like football.
3. It was because he was ill that he didn’t go to school.
I wonder_w_h_e_r_e _i_t _ w__as_ th_a_t_you met your old friend.
1) He didn’t go to bed until ten o’clock.
It was not until ten o’clock that he went to bed. 直到十点他才上床睡觉。
强调词it和形式主语it的判别： 可用恢复原句的方式来判别，即把it is/ was… that…取消后，如果剩下的词仍能组成一个完 整的句子，那么就是强调句型，否则就不是。
易混淆题：
It was at the street corner that I met Lucy yesterday. It was the street cornerwhere I met Lucy yesterday.
Grammar
高中英语it的用法课件-(详细有高考题-精品)

高中英语it的用法课件-(详细有高考题-精品)


动词 +it + that + clause
enjoy, like, / love, dislike, appreciate hate, don't mind, be fond of, feel like, see to / depend on / insist on
例 : I hate it you can dance so well but I can't.
2.非人称代词it
it有时并不指具体的东西，而泛指天气、时间、环境等， 称为非人称的it： ⑴.指天气：
It is a lovely day, isn’t it? It is a bit windy.
⑵.指时间:
It was nearly midnight when she came back.
⑶.指环境:
no good 3. S + V + it +
no use
+ doing sth.
形式宾语归纳
该句型中的it 作形式宾语，记忆方便---“6123结构”。
6 主句中常用的动词： think,believe,make,find,consider,feel； 1 形式宾语it； 2 宾补的两种形式：形容词或名词； 3 真正宾语的三种形式：
an honour
…
… said It is / was p.p. known + that-clause believed
…
1. It is clear ( obvious， true， possible， certain....) that .....
该句型中it 是形式主语，真正的主语是that 引导的主 语从句，常译为“清楚（显然，真的，肯定．．．）” 是主语从句最常见的一种结构。
高中英语UNIT4GLOBALWARMINGSECTIONⅢGRAMMARIT的用法(2)课件新人教

高中英语UNIT4GLOBALWARMINGSECTIONⅢGRAMMARIT的用法(2)课件新人教


2．特殊疑问句：特殊疑问词＋is/was＋it＋that＋其他成分？ Where was it that you met Tom yesterday? 昨天你是在哪儿遇见汤姆的？ Who was it that came up with the bright idea? 究竟是谁提出了这个好主意？ [点津] 强调句型也可用于宾语从句中，但注意语序要用陈述 句语序：动词＋特殊疑问词＋it is/was＋that＋其他。 I wonder why it was that he gave up his well-paid job. 我不知道他为什么放弃他的高薪工作。
[点津](1)强调句可以强调主语、宾语和状语，但不能强调 谓语，强调谓语动词要用“do/does/did＋动词原形”。
Do be careful when you cross the street. 过马路时，务必要小心啊！ (2)当被强调部分是人时，可用 that/who，其他情况都用 that。 (3)强调时间、地点、原因时不能用 when, where, why， 只能用 that。
→ He did finish his homework yesterday.
二、强调句型的疑问形式 1．一般疑问句：Is/Was＋it＋被强调部分＋that/who＋其他成分？
Was it Li Ping that/who he met yesterday? 他昨天遇到的人是李平吗？ Was it last year that you got the degree? 你是在去年获得学位的吗？
即时演练 4 选词填空 (when, before, since, that)
①It was 20 years ago that the two friends met in Vietnam. ②It will be 20 years before they meet in Vietnam. ③It is 20 years since he came to live here. ④It was 20 years that he spent in writing this novel. ⑤It was midnight when he came back home. ⑥It was in 1949 when our country was founded that he left his
高中英语it作主语的用法专题辅导

高中英语it作主语的用法专题辅导

号顿市安谧阳光实验学校高中英语it作主语的用法一、具有具体指代作用的作主语的it1. it作主语，可指代上下文提到过的事物或情况，代替前面出现过的单数名词。

如：—Where is my book?—It’s on your desk.2. it作主语，可替代前面出现过的this或that。

如：—What’s that over there?—It’s a temple.3. it作主语，可指代人，常用于说话者揣测心目中不清楚，或未看清楚，或不知其性别的人，尤其是婴儿。

如：—Look. There is a person coming toward us in the distance.—Who is it?(it代替person，不知性别)The baby is crying now. It may be hungry. (it代替baby)—Who is singing outside?—It’s Wang Hua. (it指推测的人)4. it作主语，可表示天气、时间、距离、度量衡以及环境等。

如：It is fine today.What time is it? It’s eight o’clock.It’s a half hour’s ride to our school.It is ten kilometers from the city to our hometown.It was very quiet at that moment.二、具有形式主语作用的it由于主语是由较长的主语从句、不定式短语、动词-ing短语等充当，为了使句子平衡，习惯上把它们放在句末，然后把it放在主语位置上作形式主语。

常见句型有：1. “it+be+形容词+that从句”。

这样的形容词有certain，difficult，easy，funny, important，likely，natural，necessary, obvious，possible，probable，strange，wonderful等。

高中英语语法it的用法

高中英语语法it的用法

to do doing clause
形式主语
运动
是很
重要
It’s important for us to do s的ports
It is obvious that going for sports will do a lot of good to your health.
知道自己的缺点是很重要的。 It is important to know your shortcomings.
It happens (seems， looks， appears ) that... It is no good (use ) doing sth…
It doesn’t matter( no wonder…)+wh-/how-clause It takes sb. ... to do sth…
It looks ( seems ) as if ...
他居然还活着, 真是个奇迹。
It is a wonder that he is still alive.
It’s a pity that the Chinese team didn’t attend
手 It it边shea有Wg个ooor小dldi笔dCe记aupt本o. 是hoan个ve…e’s好ad主luittty意le。notebook handy.
…
大学生有必要p至o少ssi掌ble握一门外语。 It is / I(wsthaisosun+ledcaemsdsaja.srteyni…rmte)hcpaaeotstrslaetaaarcnsyottl+lae(gfoeforsertiugsbdn/.elcn)alttnaoguudsaoegset.h.
IAt _w_a_s wveerlyikqeuyieett.in the caafhé.ouse
“It”用法及其句型和固定搭配讲解

“It”用法及其句型和固定搭配讲解

“It”用法及其句型和固定搭配讲解“It”用法及其句型和固定搭配，是高中英语语法的重点、难点，又是近几年高考的热点，因此应给予充分的重视，现将it用法归纳如下:一、It用作实词表达以下概念：指代前文提到的事物，前文中的this，that；替代前文中的内容；指代一位性别不明的小孩或未知的人；指代未指明但谈话双方都知道的那件事；指代时间、天气、气候、距离等自然现象……二、It用作形式主语替代作主语的从句、动词不定式、动名词,而把真正作主语的从句、动词不定式、动名词置于句尾.It 作形式主语的常见句型：1。

代作主语的动词不定式，其句型为（1)It be adj。

（for sb.)to do sth.此处adj。

通常为描述事件的形容词:easy，difficult，hard,necessary，unnecessary，possible，impossible，likely，unlikely，right,wrong，important,unimportant，legal，illegal，well—mannered,ill-mannered,polite，impolite,clear，obvious，certain，suitable，proper，fit，useful,useless，dangerous…例It is illegal（for a teenager)to drive a car without a license.(2）It be adj. of sb。

to do sth.此处adj. 通常为描述人的形容词：kind，unkind，nice，rude，cruel，considerate,thoughtful,thoughtless,careful，careless，silly，foolish,stupid，clever,wise，crazy。

例It’s kind of you to help me with the problem.（3）It替代作主语的动名词的常见句型It’s no good/use doing…It's（well）worth doing…It's（well）worth one’s while doing/to do…It’s（well)worth while doing/ to do例It's no use crying over spilt milk.2。

高中英语it的用法全解析

高中英语it的用法全解析


二、强调句型的一般疑问句结构
Was / Is it +被强调部分 +that / who+原句其余部分?
Was it a foreigner that / who you met outside of our school yesterday?
三、强调句型的特殊疑问句结构
特殊疑问代词+was/is it +that +原句其余部分?
• Notes: it做形式主语所构成的某 些惯用句形是高考的常考点.
• • • • • It looks as if…, It seems that/as if…; It appears that…, It happened that….; It makes no difference…
2. 作形式宾语. 1) 代替由不定式、动词的ing形式或从句表示的 真正宾语, 用于该句型的动词为 take, find, make, believe, think, consider, feel。 ① S. + vt. + it + adj. / n.+(for sb.) to do sth. e.g. Do you think it possible for them to send an engineer there? ② S. + vt. + it + adj. / n. + doing sth. e.g. You must find it exciting working here. ③ S. + vt. + it + adj. / n. + that-clause. e.g. I think it a pity that you didn’t try harder.
高中英语语法it的用法

高中英语语法it的用法

高中英语it的用法一、代词itA. heB. thatC. itD. theman3. Tom's mother kept telling him that he should work harder, but didn't work.A. heB. whichC. sheD. it4. —How _____ going?— Everything is OK.A. is itB. are theyC. is thatD. arethese5. — He was nearly drowned once.— When was ______ ?— _______ w as in 1998 when he was in middle school.A. that... ItB. this... ThisC. this... ItD. that...ThisKeys:1-5. D C D A A二、引导词it专项练习1. _______ is a fact that Global Warming has influenced human beings' life.A. ThereB. ThisC. ThatD. It2. It is wrong _______ treat your mother like that.A. that you toB. of you toC. for you toD.because you3. Is _______ n ecessary to complete the task before National Day?A. thisB. thatC. itD. he4. Does _____ matter if he can't finish the job on time?A. thisB. thatC. heD. it5. He hasn't had any food for two days. that he is so hungry.A. There is no pointB. There is no needC. It is no wonderD. It is no way6. ______ h e has been fired because of his absence for a long time with no reason.A. It is said thatB. They all said thatC. That is announced thatD. It was reported7. It is no use _____ books without reading.A. to buyB. in buyingC. of buyingD.buying8. _______ h uman beings can live on the moon in the next twenty years.A. There seems impossibleB. This is impossible forC. It is impossible ofD. It seems impossible that9. _______ i n the school regulation that students should wear school uniforms at school.A. What is requiredB. What requiresC. It is requiredD. It requires10. —How do you know him well?— ______that we live in the same neighbourhood.A. It isB. That isC. It is becauseD. Ithappens11. I don't think possible to complete the task without good preparation.A. thisB. thatC. heD. it12. I hate ______ when people talk with their full mouth.A. itB. thatC. theseD. them13. He _______ to do morning exercise in the park.A. took a ruleB. made a ruleC. made it a ruleD. tookit a rule14. I would appreciate _____ you would turn off the TV set.A. thatB. it ifC. these ifD. itthat15. I think _____ hard for you ______ t he task on your own.A. it is... doB. this... to doC. that is... doingD. it...to do16. Don't ______ for granted that he will keep his promise.A. take thatB. take itC. make thatD. makeit17. He soon ______ w hy he had done it.A. spoke clearlyB. made it clearC. told clearD. saidit clear18. Do you think _____ no use ______ another apology to him?A. it... to makeB. it is... makeC. it... makingD. that...of making19. We should regard _____ as a social duty to help these poor and homeless people.A. ourselvesB. theseC. itD. us20. I found ______to watch the football match on TV.A. it relaxingB. that is relaxingC. it relaxedD. thatis relaxedKeys:1-5 DBCDC 6-10 ADD CD11-15 DACBD 16-20 BBCCA三、it在强调结构中专项练习1.It was who telephoned me yesterday.A．him B．his C．himself D．he2. was a handbag that John gave Mary at Christmas.A．It B．This C．That D．Such3.Was the room the famous writer had ever lived in?A．that, it B．it , that C．it , where D．that, which 4.Why is it everyone thinks he’s a thief?A．because B．as C．when D．that5. is known to us Mary dances best.A．She, ×B．It, that C．It, she D．She, who Keys:1-5 AABDBKeys:1-5 DCDDA练习题：单项选择1. _______ that I was watching TV when he came to see me.A. It happenedB. What happenedC. That happenedD. It was happened2. The chairman thought necessary to invite Professor Smith to speak at the meeting.A. thatB. itC. thisD. him3. The Foreign Minister said, " ____ our hope that the two sides will work towards peace."A. This isB. There isC. That isD. Itis4. ______ is reported in the newspaper that the terrible flood has caused a loss of 10 million yuan.A. ItB. ThisC. ThatD. As5. It's up to you whether we should go to the art exhibition right now.A. decidingB. to decideC. of decidingD.decide6. Was ________ that I saw last night at the corner?A. it youB. not youC. youD. thatyourself7. It is about two months James leaves school. He is going to be a lawyer.A. whenB. beforeC. sinceD. that8. ______ turn is ______ to clean the blackboard?A. Which... itB. Whose... itC. Which... thatD.Whose. .. that9. The seriously injured man has stopped breathing. will be no possibility ofmaking him come to life.A. ItB. ThereC. ThatD. This10. Space exploration has been made with the development of modern science.A. it possibleB. it wasC. that being possibleD.possible11. To improve my spoken English, I make to recite a passage of English every day.A. a ruleB. it a ruleC. a rule thatD. arule it is12. He moved to a new flat because is only five minutes' walk from the new flat to his office.A. itB. thisC. thatD.there13. It was _______ several years I had an opportunity of seeing the bird again.A. for... beforeB. not for... thatC. for... whenD. notfor... then14. It was with the greatest difficulty the boy gathered the strength to rise.A. with whichB. thatC. whichD.what15. It is of great help Radio English on Sunday. It is well received.A. to pick upB. of picking upC. to pickD.picking upKeys: 1-5 ABDAB 6-10 ABDBD 11-15 BABBA基础题：一．单项选择：1. It is high time that our child to do some homework.A. learnedB. learnC. will learnD.would learn2. It is essential that every child the same educational opportunity.A. hasB. could haveC. haveD. had3. It was going to be some time he saw his parents again.A. sinceB. untilC. whenD.before4. _______ the 1500's_______ the first European explored the coast of California.A. It is not until... thenB. It was until... thatC. It's not until... whenD. It was not until... that5. I just wonder ________ that made them so depressed.A. why it didB. what they didC. how it wasD.what it was6. It was eight o'clock I got to the school this morning, made our teacher very angry.A. when... thatB. that... thatC. that... whenD.when... which7. ______ , they all went to the lake to swim.A. It was a hot dayB. Being a hot dayC. It being hotD. For it was a hot day8. I don't mind her criticizing me, but is how she does that I object to.A. itB. thatC. thisD.which9. — ______ seems to be something wrong with the machine.—Yes, _____ got a lot of noise.A. It... it'sB. There... it'sC. It... there'sD.There... there's10. ______ a certain doubt among the workers as to the necessity of the work.A. There areB. There isC. They areD. Itis11. Joan had often heard said that Marley had no money.A. oneB. onceC. itD. her12. When you go outing with your sisters, you must see to that they are safe.A. everythingB. itC. thatD.yourself13. He said, " a long way to school. a long way to go yet before we arrive."A. It is... There isB. There is... It isC. There is... There isD. It is... It is14. —Is it my age the boss minds?—I'm afraid not. He will consider necessary to have an experiencedassistant.A. which... itB. that... itC. which... thatD.that... that15. ______ easy to do the repair. All you need is a hammer and some nails.A. You areB. That isC. There isD. ItisKeys:1-5 ACDDD 6-10 DCABB 11-15 CBABD提升题：一、翻译。

【高中英语】高中英语之it代词基本用法讲解

【高中英语】高中英语之it代词基本用法讲解人称代词it可以用来代替一个名词、一个短语、一个从句或一个句子，以避免它们在句中的重复。

这时它可以指提到过的，也可以指未提到过的，在句中作主语或宾语。

(1)替代刚提到过的同一事物thisisournewcar.iboughtityesterday.这就是我们的新车。

我昨天卖的。

(2)指动物或不考虑性别的婴儿whereisthecat?it’sunderthebed.猫在哪?它在床下面。

thebabycriedwhenitwashungry.这婴儿饿时就哭。

(3)在情景中证实某人或事物whoisit?it’sme.是谁?(问敲门人)是我呀。

who’sitoverthere?it’sthemilkman.那边那人就是谁?那就是送来牛奶的what’sthis?it’samap.这是什么?这是张地图。

(4)指代前句或后句所述的情况hesmokesinbedandidon’tlikeit.他在床上抽烟，我不喜欢他这样。

whenthefactorycloses,itwillmean500workerswillbeoutofwork.工厂一旦停用,那就意味著必须存有500工人失业。

itwouldbeidealifyoucouldjoinus.如果你能和我们合作，则太好了。

(5)指时间、距离、天气或环境等whattimeisit?it’sseveno’clock.几点了?7点。

it’stimeforsupper.=it’stimetohavesupper.就是该吃晚饭的时候了。

i t’sabout50kilometersfromheretomyhome.从这儿到我家约有五十公里。

itissnowing.正在下雨itwasveryquietinthegarden.公园里很寂静。

(6)用作笼统地谈论某种情况icannothelpit.我也没办法。

(7)指最出色的或最渴求获得事物hethinkshe’sit.他一直以为自己是最佳人选。

高中英语——代词和it的用法

代词和it的用法一、代词1．人称代词They like him.[名师指津]在非正式英语尤其是口语中，人称代词作表语时常可用其宾格形式代替主格。

在比较状语从句中，有时也可用宾格代替主格(尤其是其后跟有同位语“all”时)。

—Who is it?—It’s me.He is taller than I (或me)．He is taller than us all.若可能引起误解，就不能用宾格代替主格。

试比较：He loves you more than I．(他比我更爱你。

)He loves you more than me.(他爱你比爱我更多。

)2．物主代词(1)his pen, our books。

(2)“形容词性物主代词＋own”常用来强调“某人自己的”，其后可跟名词。

Don’t use my pen.Why not use your own (pen)?I want a car of my own.(3)“of＋名词性物主代词(或名词所有格)”构成双重所有格形式。

如：a friend of mine。

3．反身代词反身代词myself, yourself, himself, herself, itself, oneself, ourselves, yourselves, themselves可在句中作表语、宾语和同位语。

I am not quite myself today.(表语)He saw himself in the mirror.(宾语)I myself did it.(同位语)4．相互代词(1)相互代词each other和one another表示相互关系，两者差别不大，一般用作宾语。

Bill and Helen blamed each other.(2)each other和one another有所有格形式，可用作定语。

They looked into each other’s eyes for a silent moment.5．指示代词指示代词有this, that, these, those, it, such, same等。

2021届高考英语复习公开课PPT书面表达之IT和THEREBE(35张)

2021届高考英语复习教学PPT-书面表 达之IT 和THERE BE (35页)-PPT执教课件【推荐】
2021届高考英语复习教学PPT-书面表 达之IT 和THERE BE (35页)-PPT执教课件【推荐】
7．It seems/appears/happens＋that ... It happened that he was a doctor, so the sick man was saved. 碰巧他是个医生，因此病人得救了。
2021届高考英语复习教学PPT-书面表 达之IT 和THERE BE (35页)-PPT执教课件【推荐】
2021届高考英语复习教学PPT-书面表 达之IT 和THERE BE (35页)-PPT执教课件【推荐】
9．It benefits sb. to do sth.做某事对某人有益 It really benefited me a lot to preview lessons, get actively involved in class, and review what had been taught in class. (2014·江西高考书面表达) 课前预习、课堂上专心听讲并复习课堂上所学的东西真的使我受益匪 浅。
What's worse, some drivers, cyclists and pedestrians do not think it vital to obey traffic rules.(2015·江苏高考书面表达)
更糟的是，一些司机、骑车人和行人不认为遵守交通规则很重要。
2021届高考英语复习教学PPT-书面表 达之IT 和THERE BE (35页)-PPT执教课件【推荐】
2．It is/was＋形容词＋(of/for sb.) to do sth. I badly need to improve my oral English, so it is great for me to find a native speaker to learn from. (2015·四川高考满分作文) 我急需提高我的英语口语，因此对我来说找到一个可以向他学习的 当地人真是太好了。

初高中英语代词it用法总结

It was in Tokyo that Nancy saw your sister last week. It was last week that Nancy saw your sister in Tokyo.
1.We think it our duty to clean our classroom every day.
2.I believe it important keeping notes. 3.He found it difficult that he would finish the task in
conclusion: it ---词性? _P__ro_n__. 可以用作人称代词，代指____前__文__提__到__的__事__物__. _ 还可以替代指示代词_t_h_is_._ 或_t_h_a_t_. _.
Discovering “It”
It is obvious that the water was to blame.
3.It is no good crying over spilt milk.
4.It is no use casting pearls before swine .

在S3与S4中，it的作用是__形__式__主_语__, __动__名_词__短__语____.构成如下结构：
真正主语是
It is/was +adj.
It is about 30km from Xi‘an to Lintong.距离 It lies in the south of Shaanxi. 地点 It is 40°C ! You got a high fever! 温度 It is December 17, 2009. 日期 What’s the baby doing? It ‘s swimming。性别不详的幼儿

It”用法及其句型和固定搭配讲解

高中英语语法权威解析目录:第01章名词性从句第02章“It”用法及其句型和固定搭配讲解第03章高中英语语法中的省略现象第04章主谓一致第05章动词不定式第06章倒装结构第07章定语从句第08章被动语态第09章祈使句第10章感叹句第11章疑问句第12章名词第一章名词性从句在句子中起名词作用的句子叫名词性从句(Noun Clauses）。

名词性从句的功能相当于名词词组, 它在复合句中能担任主语、宾语、表语、同位语、介词宾语等，因此根据它在句中不同的语法功能，名词从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。

一．主语从句主语从句是在复合句中充当主语的从句，通常放在主句谓语动词之前或由形式主语it代替，而本身放在句子末尾。

1. It 作形式主语和it引导强调句的比较It 作形式主语代替主语从句，主要是为了平衡句子结构，主语从句的连接词没有变化。

而it引导的强调句则是对句子某一部分进行强调，无论强调的是什么成分，都可用连词that。

被强调部分指人时也可用who/whom。

例如：a) It is a pity that you didn‟t go to see the film. 你不去看那场电影真可惜。

b) It doesn‟t interest me whether you succeed or not.我对你成功与否不感兴趣。

c) It is in the morning that the murder took place.谋杀案是在早上发生的。

（强调句型）d) It is John that broke the window.是John打碎的窗户。

（强调句型）2. 用it 作形式主语的结构(1) It is ＋名词＋从句It is a fact that … 事实是…It is an honor that …非常荣幸It is common knowledge that …是常识(2) It is ＋形容词＋从句It is natural that… 很自然…It is strange that… 奇怪的是…(3) It is ＋不及物动词＋从句It seems that… 似乎…It happened that… 碰巧…It appears that… 似乎…(4) It ＋过去分词＋从句It is reported that… 据报道…It has been proved that… 已证实…It is said that… 据说…3. 主语从句不可位于句首的五种情况：（1）if 引导的主语从句不可居于复合句句首。

高中英语浅谈it作形式主语和形式宾语用法


) It was really surprising that she married a man like that. (她嫁给那样的男 士真让人惊讶。) ② It + be +名词词组 + doing / that …. e.g. It is no good telling lies. (撒谎没好处。) It is a pity that you didn’t go to see the film yesterday. (你昨天没看成那部电影真遗憾。) It is a truth that there would be no new China without the Communist Party. (没有共产党就没有新中国，这 是毋庸质疑的。
至少有十七万人在2004年那场海啸中丧生。) ④ It + seems / appears / happens 等不及物动词 + that …. e.g. It seems that he enjoys pop songs very much. (似乎他非常喜欢流行歌曲。) It appears that Tom might change his mind. (看来 汤姆可能会改变主意。) ⑤ 若句子是疑问形式，就只能用it作形式主语。 e.g. Does it matter much that they won’t come tomorrow? (他们明天不来很重要吗？) Is it true that he will go abroad next week? (他下周出国是真的吗？
浅谈it作形式主语和形式 宾语用法
演讲人
It作形式主语和形式宾语用法，是中学阶段英 语学习的主要语法项目之一。纵观历届高考题， 无论是单项选择，还是完行填空，it用法始终 是反复考查的重、热点之一。现将it作形式主 语和形式宾语用法，进行如下归纳分析，以供
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在句3与句4中，it的作用是_形__式__主__语__, 真正主语 是_动__名__词__短__语___.
__i_t __用来指代前面提到的可数名词，所指的是事物本身； __o_n_e__则用来替代前面出现过的可数名词，泛指，指一类
事物中的一个 .
_th__a_t__用来代替不可数名词或单数可数名词，特指。
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一.It 作为形式主语
ห้องสมุดไป่ตู้
二.
当不定式、动名词、从句等用作句
子主语时，为保持句子平衡，通常把真正的
某人做某事某人是…….
2 It’s foolish of you to quit your job now.
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3.It is no good crying over spilt milk. 4.It is no use casting pearls before swine .
十年树木，百年树人。
3
Grammar: Use of “It”
4
课文原句再现
1.It’s a beautiful day here and I am sitting under the big tree at the end of the garden.
2.Your mother tells me that you started smoking some time ago and now you are finding it difficult to give it up.
④ It never rains but it pours(泼水).
不鸣则已, 一鸣惊人。
2
⑤ It is easy to open a shop but hard to keep it always open.
创业容易守业难。
⑥ It takes three generations (代,辈) to make a gentleman.
• It is about 8:30 now. time
distance
• It is about 25km from Longxian to Bazi.
• It lies in the south of Shaoguan city. place
• It is 40°C ! You got a high feveTre! mperature
3.Believe me, I know how easy it is to begin smoking and how tough it is to stop.
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The use of “it” 1.用作人称代词，代表前面提到的人或事物。 1) Who’s it? ___I_t’_s____me. 2) Look at the picture. __It___is a picture of our
A. That, It B. It, He C. He, It D. Who, He
一般说来，在指代身份或性别明确的人时，通 常要根据情况用代词he／she；若是指代身份 或性别不明的人，则用代词it
Ba8ck
1. I can’t find my pen. I’m going to buy _o_n__e_. 2. Life today is better than __th_a_t__ in the old days. 3. I can’t find my pen. I must have lost __i_t __.
主语放在句末，而在句首使用形式主语it.
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eg: 1. It is illegal（for a teenager）to drive a car without a license.
2. It is necessary for you to give him a letter.
3. Conclusion：
dangerous…
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（2）It +be+ adj+ of sb. to do sth
此处adj. 通常为描述人的形容词：kind， unkind，nice，rude，cruel，considerate， careless，foolish，stupid，wise，crazy. eg: 1. It‘s kind of you to help me with the problem.
Good morning, everyone!
1
Proverbs(谚语) with “It”
① It is never too old to learn.
活到老, 学到老。
② It is easier to fall than to rise. 摔倒容易爬起来难。
③ It is no use crying over spilt (溢出的) milk. 覆水难收。
Conclusion :it 可以用作非人称代词，表示 _天__气__,_时_间___,__距__离__,_地__点___,_温__度___,_日__期__ 等。
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e.g: ___C___ a. Jim is at the door．____wants to see you． b. Someone is at the door．____must be Jim．
形式主语
不定式短语
4. 在句1和句2中 it 的作用是___________ ,真正主语是________。
（1）It +be +adj.+（for sb.）to do sth. 此处adj. 通常为描述事件的形容词：easy，difficult hard，necessary，impossible，likely，right， wrong，important，obvious，useful，useless，
school. 2.用于代替指示代词this 和that。 ---Is this jacket yours? ---Yes, __it____is.
6
Read and analyze the following sentences.
• It is Friday today. Date
• It was very cold last Monday. weather