it句型及练习(附答案)教学内容
i t句型及练习(附答
案)
It句型诠释及练习
含 it 的句型几乎年年高考考到，现根据其用法特点可归纳为下列句型。
1. It is + 被强调部分 + that ...
该句型是强调句型。将被强调的部分放在前面，其它部分置于that 之后。被强调部分可以是主语，宾语，表语或状语。强调的主语如果是人，that 可以由 who 换用。如果把这种句型结构划掉后，应该是一个完整无缺的句子。这也是判断强调句型与其它从句的方法。
It was about 600 years ago that the first clock with a face and an hour hand was made.
It was they that (who ) cleaned the classroom yesterday.
It was in the street that I met her father.
2. It is not until + 被强调部分 + that ...
该句型也是强调句型。主要用于强凋时间状语，译成汉语“直到……才……”，可以说是 not ... until ... 的强调形式。
It was not until she took off her dark glasses that I realized she was a famous film star. = Not until she took off her dark glasses did I realize she was a famous film star.
= I didn't realize she was a famous film star until she took off her dark glasses.
3. 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。
It is very clear that he's round and tall like a tree.
= That he's round and tall like a tree is very clear.
4. It is important ( necessary, right, strange, natural...) that ...
该句型和上一个同属一个句型。由于主句中的形容词不同，that 后的从句中要用虚拟语气（should + 动词原形），should 可以省去。建议记住该句型中的形容词。
It is important that we (should) learn English well.
It is necessary that he (should) remember these words.
5. It is said (reported, learned…) that …
该句型中的it 仍是形式主语，真正主语是 that 引导的主语从句。该结构常译为“ 据说（据报道，据悉……）”。
It is said that he has come to Beijing.
It is reported that another man-made satellite has been put into orbit
6. It is suggested ( ordered, required ... ) that ...
该句型和上一个同属一个句型。主句中的过去分词是表示请求，建议，命令等词时，that 后的从句要用虚拟语气（should + 动词原形），should 可以省。常译为“ 据建议；有命令……）”。
It is suggested that the meeting ( should ) be put off.
It was ordered that we ( should ) arrive there in two hours.
7. It is a pity ( a shame ... ) that ...
该句型中，that 后的从句一般用虚拟语气（should + 动词原形），should 可省去．表示出乎意料，常译为“竟然”。没有这种意义时，则不用虚拟语气。
It is a pity that such a thing ( should ) happen in your class.
这种事竟然发生在你们班上，真是遗憾！
It is a pity that he is ill. 他生病了，真遗憾！
8. It is time ( about time , high time ) that ...
该句型中that 后的从句应该用虚拟语气，值得注意的是①常用过去时态表示虚拟．②有时也用should + 动词原形，should 不能省。常译为“是（正是）……的时侯……”。
It is time that children should go to bed.
= It is time that children went to bed.
9. It is the first ( second … ) time that …
该句型要和上一个句型区别开来。该句型中的 that 从句不用虚拟语气，而用完成时态。至于用什么完成时态，由主句的谓语动词的时态决定。如果是一般现在时，后面从句用现在完成时态；如果是一般过去时，后面从句则用过去完成时态。该结构中 that 可以省去；it 有时用 this 替换，常译为“是第一（二）……次……”。
It is the first time I have been here.
= This is the first time I have been here.
10. It is … since ...
该句型主要用作处理瞬间动词的完成时，又要和表示一段时间的时间状语连用的问题。主句中是时间作表语，其时态是现在时或完成时，since 引导的从句通常是一般过去时态，而且是瞬间动词。如果主句是一般过去时，从句则用过去完成时。
It is ( has been ) 5 years since his father died.
11. It is ... when ...
该句型中的 when 引导的是一个时间状语从句，主句中的 it 指时间，表语由具体的时间充当。常译为“当……的时候，是……”。
It was 5 o'clock when he came here.
12. It be ... before ...
该句型主句中的 it 指时间, 主句中的时态常是将来一般时或过去时两种时态．主句中的表语多是long, not long , 3 days , 2 weeks 等表示时间段的词或短语。常译为“……之后……”。
It was 3 days before he went to Beijing.
It will be not long before he finishes his job.
13. It happens that...
该句型中it是形式主语，that 引导的是主语从句，主句中的happen是不及物动词．
It happened ( so happened ) that he met his teacher in the street. 碰巧……
14. It take s sb. … to do sth.
该句型中的不定式是真正的主语，it是形式主语，句型中的直接宾语是时间。常译为“做……要花费某人……”。
It took thousands of people many years to build the Great Wall.
15. It is no good (use ) doing sth.
该句型中的真正主语是动名词短语，主句中的表语可以是no good , ( not any good ) , no use , ( not any use )。
It is no good learning English without speaking English.
16.I t d o e s n't m a t t e r w h e t h e r...
该句型中whether 引导的从句是真正主语，该句型常译为“不论（是否）…… 没关系……。
It doesn't matter whether they are old (or not).
17.I t i s k i n d(o f s b.)t o d o s t h.
该句型中的不定式短语是真正主语，如果不定式的逻辑主语是由 of 引起，主句中的形容词必须是能表示逻辑主语特征的形容词。常见的有: bad, brave, careless, clever, cruel, foolish, good (好心的), honest, horrible, kind, lazy, modest, naughty, nice (有教养的), polite, rude, silly, stupid, wise, wrong (错误的)等。这个句型可以改写为：sb. is kind to do sth.
It is kind of you to say so. = You are kind to say so.
18. It is necessary ( for sb. ) to do sth.
该句型与上一个同属一个句型。不定式的逻辑主语由for 引起，形容词通常表示重要性，紧迫性，频繁程度，难易，安全等情况。常见的形容词有：
①i m p o r t a n t,n e c e s s a r y,n a t u r a l
②e a s y,s a f e,c o m m o n,n o r m a l,h a r d,d i f f i c u l t,d a n g e r o u s,u n u s u a l,i m p o s s i b l e,p l e a s a n t 等。
如：It is important for her to come to the party.
= It is important that she (should ) come to the party
19. It seems/appears that 看来……
It seems/appears that he will be back in a few days.
It looks ( seems ) as if ...
该句型中it 无意义。 as if 引导一个状语从句。常译为，“看起来好象…… ＂如果与事实不相符合，则用虚拟语气．
It looks as if he is ill.（真的病了）
It seemed as if he were dying.(虚拟语气)
20. We think it important to learn a foreign language.
该句型中的it 作形式宾语。为了记忆方便我们可称该句型为：【6123结构】
6指主句中常用的动词：t h i n k,b e l i e v e,m a k e,f i n d,c o n s i d e r,f e e l；
1指的是形式宾语i t；
2指的是宾补的两种形式：形容词或名词；
3指的是真正宾语的三种形式：不定式短语，动名词短语或t h a t引导的宾语从句。
We think it our duty to clean our classroom every day.
He felt it important learning English well.
They found it difficult that they would finish their work in two days.
巩固练习：
1. The boy became fatter and fatter each day and ＿＿＿made his parents sad.
A.which
B.what
C.he
D.it
2. Someone is ringing the doorbell. Go and see ＿＿＿＿＿＿.
A.who is he
B.who he is
C.who is it
D.who it is
3. In fact, ＿＿＿is a hard job for the police to keep order in an important football match.
A.this
B.that
C.there
D.it
4. Tom’s mother kept telling him that he should work harder, but ＿＿＿didn’t help.
A.he
B.which
C.she
D.it
5. Does＿＿＿matter whether he can finish the job on time?
A.this
B.that
C.he
D.it
6. ＿＿＿used to be thought that the earth was square.
A.He
B.What
C.It
D.That
7. I took ＿＿＿for granted that he would believe in us.
A.that
B.the thing
C.it
D.this
8. He lived in poverty, and he couldn’t help ＿＿＿.
A.so
B.such
C.it
D.that
9. We had to be patient because it＿＿＿some time ＿＿＿we got the full results.
A.has been ； since
B.had been ； until
C.was； after
D.would be ； before
10. ＿＿＿＿four years since I joined the army.
A.There was
B.There is
C.It was
D.It is
11. ——Have you ever seen a whale alive?
——Yes, I’ve seen ＿＿＿.
A.that
B.it
C.such
D.one
12. ＿＿＿＿being March 12th, they planted trees on the hill.
A.That
B.It is
C.It
D.This
13. ——Was that the new comer who walked by?
——＿＿＿＿＿.
A.It must be that
B.It must have been
C.He must be
D.This must have been
14. Our classroom is very clean. Do you know who＿＿＿cleaned it?
A.was it that
B.it was that
C.was it who
D.he was
15. It’s the third time ＿＿＿＿＿ arrived late this month.
A.that you
B.when you
C.that you’ve
D.when you’ve
16. He said, “＿＿＿＿＿ a long way to school. ＿＿＿＿＿ a long way to go yet before we arrived.”
A.It is ； There is
B.There is ； It is
C.It is ； It is
D.There is； There is
17. ＿＿＿＿＿＿ for the free tickets, I would not have gone to the films so often.
A.If it is not
B.Where it not
C.Had it not been
D.If they were not
18. She finds ＿＿＿＿＿＿ boring ＿＿＿＿＿＿ at home.
A.it； staying
B.that； being stayed
C.this； to stay
D.it； stayed
19. —— Few children are as bright as he is, and also, he works very hard.
——It’s no ＿＿＿＿＿ that he always gets the first place in any examination.
A.question
B.doubt
C.problem
D.wonder
20. Now then, children. It’s high time you ＿＿＿＿＿＿ and dressed.
A.washed
B.should wash
C.were washed
D.are washed
21. —— Why did he let you repeat his instruction time and time again?
——＿＿＿＿＿＿that I remember what was＿＿＿＿＿after he went out.
A.To see to it；to be done
B.Making sure； to be done
C.To make sure；to do
D.Seeing to； done
22. ＿＿＿the people have become the master of their own country＿＿＿science can really serve the people.
A.It is only then； that
B.It was that； when
C.It is only when； that
D.It was when； then
23. ＿＿＿＿＿ is no difference between A and B.
A.There
B.Where
C.It
D.What
24. How long ＿＿＿＿＿ to finish your composition?
A.will it take you
B.will take you
C.you will take it
D.you will take
25. ＿＿＿＿＿is just like him to want to do something different from everybody else.
A.It
B.There
C.He
D.Who
26. That young Swedish＿＿＿＿＿quite still, except that his lips moved slightly.
A.kept
B.grew
C.got
D.stood
27. In late autumn leaves ＿＿＿＿＿ brown.
A.get
B.turn
C.stand
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28. Little Jim’s speech sounds ＿＿＿＿＿.
A.friendly
B.wonderfully
C.pleasantly
D.nicely
29. The poor boy ＿＿＿＿＿ blind at the age of three.
A.turned
B.went
C.became
D.looked
30. As a child, Franc ＿＿＿＿＿.
A.was alive
B.grew patience
C.ran wild
D.came true
1.D。it指代上文提到的事。另外，指代上文提到的情况，还可用that；指代下文的情况用this。
2.D。it作人称代词,用来指代身份和性别等不明确的人。
3.D。it作形式主语,真正主语为不定式复合结构for sb. to do sth.
4.D。it指代前一分句的内容。
5.D。it作形式主语，代替if从句所表达的内容。
6.C。it作形式主语，代替真正主语that从句。
7.C。it作形式宾语，代替后面的that从句。
8.C。can’t／couldn’t help (it)意为“是没有办法的事”，“控制不了”。
9.D。在it ＋be＋一段时间＋before／after／since句型中，before从句中的动作经过该段时间后才会实现；after从句中的动作完成后已经过去了一段时间；since从句中的动作完成后到现在已经有一段时间了。
10.D。参见注9。
11.D。one作为不定代词用来代替上文出现的单数可数名词；it为人称代词，指代前面出现过的某个事物；that常用来指代上文提到的不可数名词。
12.C。it在此指时间,与being March 12th 构成独立主格结构，在句中作状语。
13.B。表示对过去情况的猜测，用“情态动词＋have done”；而it代替上文所指的new comer。
14.B。who引导的从句是强调句型，在句中作宾语,用陈述语序。
15.C。it’s the second ／third time that 后的从句用完成时态。
16.A。it’s a long way中，it 代替距离，表示“那是一段很长的路”。There is a long way to go.是存在句型，表示“还有一段很长的路要走”。
17.C。Had it not been是if it had not been的倒装形式，意思是“要不是……”。
18.A。it作形式宾语，代替后面的-ing形式短语或不定式短语。
19.D。It’s no wonder that意为“毫无疑问”，“难怪”。而There is no doubt that意为“毫不怀疑”，“毫无疑问”。
20.C。It’s high time that 句型中,that从句应使用虚拟语气。根据dress的用法，应选C。washed 和dressed共用助动词were。21.A。第一空为不定式作目的状语，用来回答问句。第二空的主语是what，应用被动意义的to be done. see to it that的意思是“务必使……”，“注意使……”。
22.C。该题为强调句型，强调only when引导的时间状语从句。
23.A。表示“存在区别”应使用there be句型。
24.A。该题包括It takes sb. some time to do sth.这一结构。
25.A。符合句型It’s like sb. to do sth.，句意为“只有他才会做与众不同的事。”
26.D。stand表示“保持某种状态”，后面接表示状态的形容词作表语，强调状态的延续。
27.B。turn意为“变成”“变得”。
28.A。此题应选择形容词作sounds的表语。
29.B。当表示永久性的或难以扭转的变化时，常用系动词go。
30.C。ran wild为固定短语，意思是“放荡不羁”。
强调句型考点面面观
句型结构：
It is / was + 被强调部分+ that / who /whom +句子剩余部分…
?这个句型用来强调除谓语以外的各种句子成分,被强调部分必须放在it is/was 后面，如果强调的部分是人，可以who/whom 来代替that.
如：They will have a meeting in the hall tomorrow.
?强调主语:
It is they that/who will have a meeting in the hall tomorrow.
?强调宾语:
It is a meeting that they will have in the hall tomorrow
?强调地点状语:
It is in the hall that they will have a meeting tomorrow
?强调时间状语:
It is tomorrow that they will have a meeting in the hall.
随着高考考点的不断深入变化，该句型总是以新的面孔出现，或本身发生变化，或与其他句式结构相结合，然而万变不离其宗，总是脱不掉it + be + that/who/whom 这一框架结构。现在结合近几年有关高考题的特点，将其变化形式归纳如下：
一. 强调句型的一般疑问句形式。
句式特征：Is/ Was it +被强调部分+ that…；
?1．（1994 上海）Was it in 1969 ____ the American astronauts succeeded ___ landing on the moon ?
A. when; on
B. that; on
C. when; in
D. that; in
?简析]：比较It was in 1969 that the American astronauts succeeded in landing on the moon 我们不难看出该题干实质上是该陈述句的一般疑问句形式。答案选D。
?2．Could it be in the restaurant in ____ you had dinner with me yesterday ____ you lost your handbag?
? A. that; which B. which; that C. where; that D. that; where
?这是一个含有情态动词的强调句型的一般疑问句形式，第一空格所在的句子成分应为定语从句，结合介词in应用关系代词which；第二个空格
所在部分应为强调句型中的that分句。故答案为B。
二、结合特殊疑问词构成特殊疑问句形式。
句式特征：特殊疑问词+is/was it that…？
?3．_______ is it _______has made Peter _______he is today?
A. What; that; that
B. That; that; what
C. What; what; that
D. What; that; what
?[简析]：本题结构复杂，乍看难以理清，请看下面两句：
It is determination that has made Peter what he is today.
对划线部分提问→What is it that has made Peter what he is today?
对照原题，则答案为D。
?依此为据扩展开来可为：
?4．How is it that she turned down our help? 什么原因使得…？
?5．Where was it that you met Tom yesterday? 究竟在哪…？
?6．When was it that you met him in the park? 究竟何时…？
?7．When and where was it that you got to know Mary? 究竟在何时何地…？
?8．Who was it that that came up with the bright idea? 究竟是谁…？
?9．Which book is it that you want to buy? 究竟是哪一本书…？
?10．Whose umbrella was it that you took away? 到底是谁的伞…？
三、强调句型的反意疑问句形式
句式特征为：It is/was+被强调部分+that…，isn’t / wasn’t it？
?11．It was Alice and her boyfriend who sent the old man to the hospital, ______?
A. do they
B. didn’t they
C. wasn’t it
D. was it
?[简析]：答案C. 此种情况下疑问句中的主语应与强调句型中的主语it保持一致，不能和被强调部分中的名词或代词保持一致，并要遵守“前肯定后否定”的原则。
四、强调句型的感叹句形式。
?句式特征为：what/ how … it is (that) +主语+谓语！
?12．What a beautiful picture it is (that) you have drawn!
?13．How beautiful it is (that) your daughter is!
五、强调句型的“让步含义”。
句式特征为：含有“让步含义”的强调句型在翻译成汉语时要注意“反译”。
?14．It is a wise father that knows his own child.
再英明的父亲也不会理解他自己的子女。（莎士比亚名言）?15．It is a wise man that never makes mistakes.
再聪明的人也会犯错误。
六、在强调句型中考察主谓一致与比较结构。
It的几个特殊句型
It的特殊句型 一、高考真题 1． (他突然想到) that he had an important conference to attend the next morning.( occur)（11高考78题） 【答案】It occurred to him 【解析】本题考察的是occur引导的句型”it occurs to sb。that（某人突然想到）“根据后面的动词提示”had“，故要用一般过去时. 2.During his last lecture, the scientist_________ (觉得) easier to explain the theory to those with some background knowledge.(find)(09高考73题) 【答案】found it/ found （that）it was ks5u 【解析】考查句型结构。根据提示词find及后面的形容词easier可知此处可使用find it + adj.的结构，it后加be动词变做宾语从句也对，此句时态为一般过去时。 34. _______ _ (我花了) one thousand dollars to buy the painting last week. (cost) (08高考34题) 【答案】It cost me 【解析】考点：it做形式主语（特殊句式）关键词：It cost（★It不用不给分，cost写成co sted 扣0.5分）结构部分：It cost somebody how much money to do something 其它部分：me 二、考点分析 1. It is + 被强调部分+ that ... 该句型是强调句型。将被强调的部分放在前面，其它部分置于that之后。被强调部分可以是主语，宾语，表语或状语。强调的主语如果是人，that可以由who换用。如果把这种句型结构划掉后，应该是一个完整无缺的句子。这也是判断强调句型与其它从句的方法。 It is your efforts, not your intelligence, __________(决定) your success. (determine ) It was about 600 years ago that the first clock with a face and an hour hand was made. 2. It is not until + 被强调部分+ that ... 该句型也是强调句型。主要用于强凋时间状语，译成汉语＂直到…才…＂，可以说是not ... until ... 的强调形式。 It was not until she took off her dark glasses that I realized she was a famous film star. = Not until she took off her dark glasses did I realize she was a famous film star. = I didn’t realize she was a famous film star until she took off her dark glasses. 3. 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。It is very clear that he’s round and tall like a tree. = That he’s round and tall like a tree is very clear. 4. It is important (necessary, right, strange, natural...) that ... 该句型和上一个同属一个句型。由于主句中的形容词不同，that 后的从句中要用虚拟语气（should + 动词原形），should 可以省去。建议记住该句型中的形容词。 It is important that we (should) learn English well. It is necessary that he (should) remember these words. 5. It is said (reported, learned，believed....) that ... 该句型中的it 仍是形式主语，真正主语是that 引导的主语从句。该结构常译为＂据说（据报道，据悉…）＂。 It is said that he has come to Beijing. It is reported that another earth satellite has been put into orbit. 6. It is suggested (ordered ... ) that ...
It作形式主语常见用法
It作形式主语常见句型 1.It + be +形容词+ that-从句 可用于此句型的形容词有: wonderful, true，good，right，wrong，（un）important，useless，surprising，disturbing,frightening,alarming,clear，unusual，lucky，certain, necessary等。如： ①It is quite certain that he will be at the meeting.他将出席会议是无疑的。 ②It is surprising that he came late to school this morning.他今天早上迟到真令人惊讶。 ③It is important that we (should) study hard.我们努力学习是很重要的。 注意: 该句型中的形容词是（un）important, necessary等时，从句应为(should )+动词原形。 It is important that we (should) learn English well. It is necessary that he (should) rember these words. 2.It + be +名词+ that-从句 适用该句型的名词（词组）有: a pity，an honor，a good thing，a fact，a surprise，a question,a shame,a custom, a truth,our hope, no wonder, good/bad manners等。如： ①It is a pity (that) you missed the sports meeting last week.你错过了上周的运动会太可惜了。 ②It is a fact that Engl ish is being accepted as an international language.事实上英语已经被作为一种国际语言而接受了。
五个基本句型翻译练习及答案
基本句型主谓结构 说明： 本结构是由主语加不及物的谓语动词构成,常用来表示主语的动作。如，The sun rises. 主语可有修饰语---定语，如，The red sun rises. 谓语可有修饰语---状语，如，The red sun rises in the east 翻译练习： 1.你应当努力学习。 2.她昨天回家很晚。 3.那天早上我们谈了很多。 4.会议将持续两个小时。 5.在过去的十年里，我的家乡已经发生了巨大的变化。 6.这种事情全世界各地每天都在发生。 7.19年，在北京爆发了“五.四”运动。8.每天八时开始上课。 9.这个盒子重五公斤。10.五年前我住在北京。 11.爱丽丝很会游泳。12.约翰的父亲昨晚去世了。 13.秋天有些鸟飞到南方去。14.我的爷爷早晨起得很早。 15.每天下午有许多学生到图书馆来借书。16.太阳在照耀着。 17.月亮升起了。18.宇宙长存。 19.我们大家都呼吸、吃和喝。20.管它呢？ 21.他所讲的没有什么关系。22.他们谈了半个小时。 23.这支笔书写流利。 基本句型主系表结构
说明： 本结构是由主语+系动词+表语组成，主要用以说明主语的特征，类属，状态，身份等。 系动词有 （1）表示特征和存在状态的be, seem, feel, appear, look, smell, taste, sound. （2）表示状态延续的remain, stay, keep, continue, stand. 翻译练习： 1.我的兄弟都是大学生。 2.冬季白天短，夜晚长。 3.布朗夫人看起来很健康。 4.十五岁他就成为有名的钢琴家了。 5.孩子们，请保持安静。 6.这本书是有关美国历史的书。 7.她的工作是在幼儿园里照看儿童。8.他失业了。 9.树叶已经变黄了。10.这个报告听起来很有意思。 11.这是本英汉辞典。12.午餐的气味很好。 13.他堕入了情网。14.一切看来都不同了。 15.他长得又高又壮16.麻烦的是他们缺少钱。 17.我们井干枯了。18.他的脸红了。 12 基本句型主谓xx结构 （一） 说明：
it的用法归纳
?Never be afraid of grammar ?Collect some examples; ?Watch them very carefully; ?Find out something in common; ?Try to use the rules ---- practise. it用法完全归纳 一、it 作人称代词的用法 1.指事物 作为人称代词，it 可以除人以外的一切事物或动物。如： I dropped my watch and it broke. 我把手表掉在地上摔坏了。 It’s hard work, but I enjoy it. 工作很辛苦，可是我乐意干。 “Where is the dog?”“It’s in the bedroom. ”“狗在哪?”“在卧室里”。 2.指人 it 指人主要用于指不性别不明的婴儿或用于确认某人的身份。如： Is it a boy or a girl? 是男孩还是女孩? There is a knock on the door. It must be the postman. 有人在敲门，一定是邮递员。 【说明】在答语中，常用来指本人，如说It’s me。
3.代替某些代词 代词it 还可用于代替指示代词this, that 以及复合不定代词something, anything, nothing等。如： “What’s this?”“It’s a new machine. ”“这是什么?”“是一种新机器”。 Nothing is wrong, is it? 没出什么问题，是吗? 二、it 作非人称代词的用法 1.基本用法 it 作非人称代词的用法，主要用于指时间、距离、价值、天气、气候及温度等自然现象。如： It’s too late to go there now. 现在去那儿已经太迟了。 It rained all day yesterday. 昨天下了一天的雨。 It can get very hot here. 这里有时会很热。 2.用于某些句型 It’s time for sth. 该做某事了。 It’s time to do sth. 该做某事的时候了。 It’s time for sb to do sth. 某人该干某事了。 It’s (about / high) time + that-从句. 某人该做某事了。(从句谓语用过去式，有时也用“should+动词原形”) It’s first (second) time + that-从句. 某人第几次干某事。(从句谓语用现在完成时)
it开头的惯用句型
it开头的惯用句型 【疑难点津】it常放在句子开头，作某些惯用或固定句型的主语。常见句型有： 1.“it+be+特定动词的过去分词+that从句”。这样的过去分词有：said, reported, believed, known, decided, proved, thought, arranged等。如： It is said that my German teacher often goes to Germany to do research.据说我的德语老师 经常去德国做研究。 2. “it +特定动词+ that从句”。这样的特定动词有：appear, happen, occur, seem等。如： It never occurred to me that I would travel to America.我从没想过我会去美国旅行。 3. “it +特定动词+ as if从句”。这样的特定动词有：appear, seem等。如： It appears as if you are very tired.看起来你好像很累。 4. “it has been/is +一段时间+ since从句”。从句中谓语用短暂性动词时表示“自从该动词动作发生以来有一段时间了”；用持续性动词时表示“自从该动作结束以来有一段时间了”。试比较： It is six years since I began to work here.自从我在这儿工作以来已经有六年了。 It has been six years since I worked here.我不在这儿工作已经有六年了。 5. “it +be+一段时间+ before从句”。从句中谓语用短暂性动词；主句中be动词可以用肯定式或否定式，其时态可以是一般过去时或一般将来时。常译为“……才……”或“……就……”。如： It won’t be a long time before we finish cooking.不久我们就会把饭做好。 It was four days before they found the lost child.过了四天他们才找到那个失踪的孩子。 6. “it is (high) time + that从句”。表示“到了某人该做某事的时间了”，从句谓语要用一般过去时，也可用should do的形式。另外“it is (high) time for sb. to do sth”,也表示同样的意思。如： It is high time that I went to see my mother in the hospital.到了我去医院看妈妈的时间了。 It is time for you to do your homework.到你做家庭作业的时间了。 7. “it is/was +强调内容+ that/who从句”。这是一个强调句型，强调的内容是事物或是指人的宾语时，常用that引导从句；强调的内容是指人的主语时通常用who引导从句。如：It is in the street that I came across Mr. Li.是在街上我碰到了李先生。 It was my friend who picked me up at the station. 是我朋友在车站接上我的。 【考题链接】 was in 1979 I graduated from the university. (1998上海卷) A. That; that B. It; that C. That; when D. It; when When you are old and grey and full of sleep, And nodding by the fire, take down this book,
It作形式主语的几大基本句型
“It”作形式主语的几大基本句型 2011-06-07 22:27:53| 分类：语法归纳| 标签：|字号大中小订阅 ◇It’s +形容词/名词+that +从句 It is necessary that you train yourself before the walk. It is important that you have your own support team. It was a pity that he lost the game. It’s a pity that you missed the exciting football match. ◇It’s +形容词+(for sb) +to do sth It is difficult to walk through eight country parks. It is useful to have support teams. It is important for him to finish it in ten hours. It is necessary for people to learn team spirit. 特别提醒： ☆该句型的否定结构为It’s +形容词+(for sb) +not +to do sth It is very important not to give them too much food. (7B 100) It is very polite not to speak loudly in public. ☆该句型有时可以与It is + adj. + that从句的句型互换使用，意思不变。如：It is necessary for you to train yourself before the walk. = It is necessary that you will train yourself before the walk. ◇It’s +名词+to do sth It’s everyone’s duty to obey the law. It is not a good habit to stay up too late. As a student, it is bad manners to come late to class. It is my turn to clean the blackboard.
it用法及句型归纳
it用法及句型归纳 it为人称代词，主格与宾格同形。该词用法灵活，下面帮助同学们作以归纳。 一、可用来代替指示代词this或that。例如： —What's this/that? 这/那是什么？ —It's a ruler. 这/那是尺子。 二、表示时间、距离、天气、数字等。例如： 1. —What's the time?几点了？ —It's ten to ten. 九点五十。 2. —What's one plus two? 一加二等于几？ —It's three. 等于三。 三、用来代替前面提到的人或物。例如： This is my pen. Give it to me, please. 这是我的钢笔，请把它给我。 四、指心目中或上下文中所指的人或物。例如： 1. —Who's that over there? 那边的人是谁？ —Is it Bill? 是比尔吗？ 2. Miss Gao has a computer. It's new. 高老师有一台电脑，它是新的。 五、指身份不明、性别不详的人或者指照片中的人。例如： —What's the baby in the picture?照片中的那个婴儿是谁？ —It's me. 是我。 六、在电话用语中，可用it来指代对方或者自己。例如： —Hello! Who's it? 喂，你是哪位？ —It's Jim. 我是吉姆。
在初中英语教材中，出现了许多由it引导的固定句式，现归纳如下： 一、It's time for sb. to do sth. / It's time for sth.意为"是(某人)该干……的时间了"、"到……的时候了"。例如： 1. It's time for supper ／to have supper.该吃晚饭了。 2. It's time for me to study.我该学习了。 二、It takes(sb.)some time to do sth.意为"(某人)花……时间做某事"。例如： 1. It takes twenty minutes to go to school by bike. 骑自行车上学要花二十分钟的时间。 2. It took me a week to finish reading the book. 我花了一周时间读完这本书。 三、It is one's turn to do sth.意为"轮到某人做某事了"。例如： It's your turn to be on duty tomorrow. 明天轮到你值日了。 四、It is ／has been ＋时间段＋since ＋一般过去时，意为"自从……以来已过了……(时间)。" 例如： 1. It is / has been four days since I caught a cold. 我感冒已四天了。 2. It is / has been two weeks since we met last. 自从我们上次见面以来已过了两周。 五、It seems ／seemed ＋that从句，意为"看起来好像……"。例如： It seemed that our team was going to win. 我们队看起来好像要赢了。 六、It's＋表语＋to do sth.。例如： It's a good idea to go out for a walk. 出去散步是个好主意。 七、It's ＋adj.＋that从句。例如： It's true that I may fall behind the other students.我真可能落在别的学生后面。 八、It's＋adj.＋of(for)sb.＋to do sth.。对于这个句型究竟用of还是用for，主要取决于前面的形容词。如果形容词是描述不定式行为者的性格、品质等的，如kind，good，nice，clever 等用of；如果形容词仅仅是描述行为的则用for，这类形容词常见的有difficult，easy，hard，important，dangerous等。例如：
高中英语基本句型翻译及答案
高中英语基本句型天天练 （一）主谓结构 1.她昨天回家很晚。 2.会议将持续两个小时。 3.在过去的十年里，我的家乡已经发生了巨大的变化。 4.这种事情全世界各地每天都在发生 5.1919年，在北京爆发了“五.四”运动。 6.这个盒子重五公斤。 7.秋天有些鸟飞到南方去。 8.我的爷爷早晨起得很早。 9.每天下午有许多学生到图书馆来借书。 （二）系表结构 1.冬季白天短，夜晚长。 2.布朗夫人看起来很健康。 3.十五岁他就成为有名的钢琴家了。 4.她的工作是在幼儿园里照看儿童。 5.他失业了。 6.树叶已经变黄了。 7.这个报告听起来很有意思。 （三）主谓宾结构 1.昨晚我写了一封信。
3.你们必须在两周内看完这些书。 4.Jim还不会自己穿衣服。 5.我们大家都相信Jack是一个诚实男孩。 6.他不知道说什么好。 7.我开窗户你在意吗？ 短语动词 1.他指出了我的作文中的错误。 2.圣诞节我们将去看望外籍教师。 3.五分钟内我们是不可能解出这道题来的。 4.他们高度赞扬了英雄的业迹。 5.这位护士会好好照顾你父亲的。 6.你在工作中可依靠他。 7.写完作文后，我们必须把它从头到尾看一遍。 8.脱掉你的外套，走前再穿。 9.我们必须派人去请医生。 （四）复合宾语结构 1.他的父母给他取名为John. 2.我们大家都认为他是诚实的。 3.他们把门推开了。 4.我们要使学校变得更美丽。
6.明天我要找人来修理机器。 7.每天早晨我们都听到他大声朗读英语。 8.痛苦使得他叫喊起来。 9.我们不会让她在晚上外出的。 10.他每个月理一次发。 11.我要请人把我的录音机修理一下。 12.那可怕的声音把孩子们吓坏了。 13.她正在听人家讲故事。 14.我从来没看见这个字这样用过。 15.他感到很难跟你交谈。 16.我认为有可能用另一种方法解题。 17.学校定了一条规则，开始上课时学生要起立。 18.我认为与那个人谈话是无益的。 （五）Therebe句型 1.今晚没有会。 2.这个村子过去只有一口井。 3.这个学校有一名音乐老师和两名美术老师。 4.客人当中有两名美国人和两名法国人。 5.天气预报说下午有大风。 6.灯亮着，办公室里肯定有人。
-it的用法及强调句型(精心整理)
it的用法及强调句型 it的用法 一、it作指示代词【完成句子】用one，ones，it，that，those填空 (1) — I can't find my watch. —You haven't found ______？If you want to buy a new ______，I suggest you buy ______ made in China. (2) We've got a big cup and two small ______. (3) The weight of an elephant is much greater than ______ of a tiger. (4) The books on the first shelf are easier than ______ on the second shelf. (5) The boy told his story and ______ of the girl upstairs. 【答案】(1) it; one; one (2) ones(3) that (4) those / the ones (5) that / the one 【结论1】 ①指代上文提过的事物时，it指的是同名同物，相当于the＋名词； ②one指的是同名异物，表示单数可数名词相当于a ＋名词；a / an＋形容词＋one等于a / an＋形容词＋名词；复数形式用ones； ③that后面常有后置定语，有特指意义，代替不可数名词或单数可数名词，相当于the＋ 名词； ④复数名词用those，相当于the ones。 【例句观察】— Someone is knocking at the door. Who is it? — It must be Leo. He said he'd come to see me. 【结论2】it指代人时，常指小孩或身份不明的人。 【例句观察】It's too quiet in the room. Everyone just keeps silent. 【结论2】it可用以指代环境或情况。 (6)— What time is it now? — It's half past seven. (7)— It is spring now and it's warm these days. 【结论3】it可用以指代时间、季节、天气或距离。 【注意】it指代时间时，有如下一些句型： (1) It is time for sth. (for sb.)to do sth. / that－从句(should do / did, 必须用虚拟语气) 例：① It's time for lunch. ② It's time for us to clean the house. ③ It's time that we should clean the house. ＝It's time that we cleaned the house. (2) It is / has been ＋some time ＋since－从句(从句用一般过去时) It is 10 years since I graduated from college. (3) It / This/That is the first / second time that－从句(必须使用现在完成时)这是某人 第……次做了某事。 It / This/That was the first / second time that－从句(必须使用过去完成时) 例：①It is the second time that she has visited the Great Wall. ②This was the first time that I had come late to school. (4) It was ＋时间点＋when －从句 例：It was evening when we got home. ＝It was evening in which we got home. (5) It was / will be ＋some time ＋before －从句 例：①过了5年他们才从北大毕业。 It was five years before they finally graduated from Beijing University. ②不久，我们就要从我们学校毕业了。 It won't be long before we graduate from our school. 二、it作形式主语 1.代替主语从句 ①It is clear ( obvious，true，possible certain....) that ..... “清楚（显然，真的，肯定．．．）” ②. It is important ( necessary，right，strange，natural...) that ... that 后的从句中要用虚拟语气（should + 动词原形），should 可以省去，建议记住该句型中的形容词。 It is important that we (should) learn English well.
常用it作形式主语的句型结构
常用 it 作形式主语的句型结构 ?It + be +形容词+ that-从句 可用于此句型的形容词有 : wonderful, true，good，right，wrong，(un)important ，useless，surprising， clear, unusual, lucky, certain, necessary等。女口： ①It isquite certain that hewill be at the meeting. ②It is surprising that he came late to school this morning. ③It isimportant that we(should) study hard 注意：该句型中的形容词是(un) important, necessary等时，从句应为(should )+动词原形。 ?It + be + -ed 分词 + that-从句 适用该句型的过去分词主要有：said,reported, announced,hoped,thought, told, believed, expected, decided, suggested,known 等。如： ①It ishoped thatonedaytheywill haveenoughanimalsto setthem free ②It is well known that the earth goes around the sun. ③It is suggested that the sports meeting (should ) be put off until next week. 注意：该句型的过去分词是suggested时，从句应为(should )+动词原形。 ?It + be + 名词 + that-从句 适用该句型的名词 (词组) 有：apity, anhonor, agood thing, afact, asurprise, goodnews, one's duty 等。如： ① It isapity (that)you missedthesportsmeetinglastweek. ② It isafactthatEnglish isbeingacceptedasaninternational language. ?It ＋seem／ appear／ happen 的适当形式＋ that 从句。该句型常可以转换成含不定式的简单句。如： ①It seemsthat thereisabig wastepipecomingdown from the town. T There seemsto be a big waste pipe coming down from the town. ②He appearedto becalm,but insidehisheartwasbeatingwildly with fear. t It appearedthathewascalm,butinsidehisheartwasbeatingwildly with fear. ?It does n't matter ( It 'no won der; It does n 'make much differe nee 等) ＋ when/ where/ which/ whether 等从句。如： ①Does it matterif hecan'tfinish thejob ontime? ②Theyareallclassmates. It isnowonder they should help eachother with their studies. ?It + be+ adj./ n. (for sb./ ofsb.)+ todosth. 该句型中的形容词通常是表示事物的特点或特征的如 difficult , hard, easy, impossible, necessary, important 等,此时用 fo r ；或表示人的性格特征或特点的如nice, good, bad, kind, silly, foolish, wise, clever, careless, rude, brave, cruel, careful, grateful等，这时要用 of。如： ① It is foolish of you to give up such a good chance. ② It is necessary for college students to master at least a foreign language It 作形式主语常见句型 动词不定式，动名词或主语从句作主语时，通常把它们放在谓语动词前，而用 it 作形式主语，放到句首，常见句型有：
It的用法、Therebe句型
期末专题练习——It的用法、There be句型 ［教学内容］ 第一部分It 的用法 概说：It是个非常简单的单词,但其用法却很灵活。 一、指代作用。It作句子的主语。 （一）It指前面已经提到过的人或事物。 1. What’s this? —It’s a chair. 2. Who is it? —It’s me. 提示：it代替上文提及的原物(复数用they)； one指代上文提及的、泛指的可数名词单数（复数ones）； that指代上文提及的定指的可数名词单数或不可数名词（复数those）。 （二）It指时间、季节。虚义。 1. What time is it? —It’s nine. 2. It’s time to go to school. Let’s go. 3. What day is today? —It’s Saturday. 4. What is the date today? —It is Oct. 1st. 5. What season is it? —It is summer. （三）It指气候。虚义。 1. It is cold in this room. 这个房间很冷。 2. What’s the weather like today? —It’s fine. 今天天气怎么样？天气很好。 3. It often snows in winter in Harbin. 哈尔滨的冬天经常下雪。 （四）It指距离、情况等。虚义。 1. It is five kilometers from my home to the school. 从我家到学校有五千米。 2. It is very near from this shop to that. 从这个商店到那个商店很近。 3. It is a long way to the sea. 这离海很远。 4. Is it well with you? 你身体好吗？ 二、It作形式主语。 动词不定式、动名词短语、从句在整个句中起主语作用，而这一部分用词较多，因此
基本句型翻译
1、主语＋系动词＋表语 （1）他是一个运动员。 （2）长大后他成为一位老师。（turn） （3）这种食物吃起来很糟糕。 （4）天气变得暖和了。 （5）那种食物已经变质了。 （6）事实证明是正确的。 （7）只要你努力，你的梦想一定会实现。（8）她听到这个好消息后，变得非常开心。（9）Tom看起来比他的实际年龄更大。（10）别把他弄得像个傻子一样。（appear）（11）那信摊开在他的书桌上。（lie） （12）他站在那里一动也不动。（stand）（13）眼见为实。（百闻不如一见） （14）这消息听起来挺鼓舞人心的。 （15）三月份她一直呆在中国。（be） （16）这个玻璃杯碎了。（be） （17）当他看到那只大狗时，他感到很恐惧。（18）我们对那个结果很满意。 （19）我的愿望是成为一位作家。（be）（20）我最喜欢的消遣是踢足球。（be）（21）我只得离去。（不定式做表语） （22）这台机器的情况良好。 （23）这座花园香气怡人。 （24）丝绸摸起来又软又滑。 2、主语＋谓语 （1）学生们很努力学习。 （2）太阳每天从东方升起。 （3）他突然停了下来 （4）现在我爷爷住在城里。 （5）事故是昨天晚上发生的。（accident）（6）蓝色的球在移动。 （7）那个老人在去年冬天死了。 （8）火星上没有生命存在。 （9）当他到达车站时，火车已经开走了。（10）Jack为他所犯的错误向John道歉。（11）他在学习上远远落后于他的同学。（12）墙上挂着一幅画 （13）这衣服很容易洗。 （14）这部小说很畅销。 （15）这笔写起来很流畅。 3、主语＋谓语＋宾语 （1）我要一杯茶。 （2）你可以把书放在书包里。（3）我昨天看了一部名叫Gone With The Wind的电影。（4）这些孩子他们照看得很好。 （5）我想她今天不会来参加我们的舞会。 （6）你真的无法想象再这样的环境下生活。（imagine）（7）你做完作业了吗？（finish） （8）我们必须避免再犯这样的错误。avoid （9）你介不介意我在这吸烟？mind （10）我们每天应该在课外练习讲英语。practice 4、主语＋谓语＋间接宾语＋直接宾语 （1）昨天她父亲给她买了一辆自行车做为生日礼物。（用两种结构各翻译一句） （2）请把你的画给我看一下。（用两种结构各翻译一句） 5、主语+谓语+宾语+宾语补足语 1）不定式作宾补 A. 不定式前带to （1）他叫我跟他一起去逛街。 （2）村民们不允许他们做这。（allow） （3）老师告诉他今晚六点钟过来这里。 （4）他说服了弟弟上床睡觉。 （5）史密斯夫妇邀请我去他们家里吃饭。 （6）玛丽提醒我要准时参加会议 （7）爸爸警告我不要吸烟。 （8）他想我跟他一起工作。 （9）我期待他能在考试中成功。 （10）我更喜欢你呆在这里。 （11）我讨厌他今晚过来吃饭。 （12）老师要求我们在9点钟之前交作业。（require）（13）约翰建议玛丽干什么？ （14）石油的短缺（shortage）导致了价格的急剧上升。（15）我的好朋友鼓励我不要放弃。 （16）最后一辆公共汽车开走了，我被迫要打的。 （17）参观者请勿拍照。（permit） （18）你可以相信我不会跟任何人讲。（trust） （19）她力劝他留下。（urge） （20）你能教我干那活儿吗？ （21）他让姐姐帮助他做作业。（get） （22）在考试过程中禁止离开课室。（forbid） （23）我希望你今晚可以过来。（like） （24）饥饿驱使她去偷窃。 （25）她求他别离开。（beg） （26）这种软件使你能在几秒钟之内便可访问互联网。（enable） （27）他的话使我去找出真相。（lead） （28）他指示我开灯。
It构成的句型小结
It 构成的句型小结 一、It 作形式主语的句型 为使句子平衡，往往把 it 置于句首作形式主语，而把真正的主语(通常是不定式短语、动名词短语或主语从句)移至句末。 It 作形式主语的句型有： ㈠ it 代指不定式短语的句型 1. It takes + (sb.) + sometime / some money + to do sth. 做某事花去某人多长时间 Just a minute, it won't take me long to change. 等一下 ,我很快就可以换好衣服。 It takes five minutes to walk there. 走到那里需要 5 分钟。 It took me three days to prepare for the examination. 我花了三天准备那次考试。 It takes a lot of money to buy a house like that. 买那样一幢房子需要很多钱。 2. It takes + 名词 + (for sb.) to do sth. .................. 某人做某事需要 It took great imagination as well as patience for Annie to teach me to speak. 对安妮来说，教我说话需要极大的信心和想象力。 It takes time for them to prepare for the great changes that take place in space. 他们需要很多时间准备应付太空中所发生的巨大变化。 3. It is + 形容词+ (for / of sb.) to do sth. 某人做某事是... 的 for sb. 的句型常用于表示事物的特征特点，表示客观形式的形容词，如easy, difficult, hard, important, possible, impossible, comfortable, necessary, better 等。 of sb 的句型一般用表示人物的性格，品德，表示主观感情或态度的形容词，如kind, nice, stupid, rude, clever, foolish, thoughtful, thoughtless, brave, considerate( 考虑周到的), silly, selfish( 自私的) 等。 It was kind of you to help us. 谢谢你对我们的帮助。 What time would it be most convenient for me to call again? 什么时候我再给你打电话最合适？ It 's very good of you to have listened to me. 感谢你能听我讲。 4. It is + 名词+ to do sth. 做某事是..... 的 常用于该句型的名词有： manners, duty, fun, good, a great honour 等。 As a student, it is bad manners to come late to class. 作为学生，上课迟到是没有礼貌的。 It is our duty to pay taxes to our government. 向政府交税是我们的义务。 5. It is + one ' s turn + to do sth.轮到某人做某事 It was my turn to clean the blackboard. 轮到我擦黑板了。 It is his turn to take the children to school. 今天该轮到他送孩子们上学了。 6. It is + up to sb. + to do sth. 做某事是某人的责任或义务 It 's up to us to give them all the help we can. 我们理应竭尽所能地给予他们帮助。 It 's up to you to decide whether to go or not. 应该由你决定是否去。 Up to you! 由你来定！ ㈡ it 代指动名词短语的句型 7. It is + 名词+ doi ng sth. 做某事是..... 用于该句型的名词有：no good, no use 等。 It 's no use talking to him about it. 和他谈论此事是没用的。 It 's no use/good (in) crying over spilt/spilled milk. 事已至此，后悔也无用。(牛奶已泼，哭也没用。) 8. It + be + 名词 + that 从句 用于该句型中的名词有： a pity, a shame, a fact, an honour, a wonder, a good thing, good news, no wonder 等。惯用句型有： It is com mon knowledge that ........ 是常识