
it的所有用法总结如下:
I.It 作形式主语的句型
①It + be + adj(kind , wise , careless, clever…) + of sb to do sth
Eg: It is wise of him to make such a decision他做出这样的决定是明智的。
②It + be + adj(easy , safe , common , normal …)+ for sb to do sth
该句型中adj若为important, necessary, natural, possible, strange, vital, essential等可改为从句,从句用should+动词原形。
Eg: It’s very dangerous for children to play with fire
It is important for us to learn English well (= It is important that we (should) learn English well)
③ It + be +V-ed(reported,believed, said, suggested…)+ that 从句
该句型中:⑴若V-ed为reported, believed, said等常译为“据报道”,“据认为”,“据说”。⑵若V-ed为suggested, ordered, demanded, insisted等表示“建议”,“命令”的词,从句要用虚拟语气(should)+动词原形。
Eg: It is suggested that the book (should) be revised
It’s said that Tom has been back from abroad (=Tom is said to have been back from abroad)
④ It + be + n (a pity, a shame, a fact , good news…)+ that 从句:
该句型中,从句一般用(should) + 动词原形,表示出乎意料,常译为"竟然"。
Eg: 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!
⑤ It is useless/no use/no good /pleasure+ doing sth
此句型中的it是形式主语, 其后的动名词短语是真正的主语,译为“做…没有用”。
Eg : It ‘s useless arguing with him further // It’s no use talking with him, because he won’t listen
⑥ It takes sb to do sth
该句型中it是形式主语,真正的宾语是to do sth,常译为"做……要花费某人……"。
Eg: It took thousands of people many years to build the Great Wall
II.It 作形式宾语的句型
1sb find/ believe/ think/ feel/ consider/ make + it +n/adj +to do或从句
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:think, believe, make, find, consider, feel;1 指的是形式宾语 it;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that引导的宾语从句。
Eg: 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
2主语+hate / dislike / love / like +it +when-从句
Eg: I hate it when people speak with their mouths full
3 主语+appreciate +it +if-从句
Eg: I really appreciate it if you could help me with my math
4 sb depend on/count on/rely on/see to(负责,确保)/ answer for it that…
Eg: You may rely on it that he won’t be late
You must see to it that the doors are locked before you leave the lab
5 sb take it for granted that… 认为……是理所当然的
Eg: I take it for granted that he will succeed
IIIIt 引导的时间句型
⑴ It + is/has been+ 时间段+ since引导的时间状语从句:
该句型中从句一般用过去时态,句意为“自从以来已多久了”
Eg : It is 5 minutes since the bus left 公汽开走已有5分钟了
⑵ It + be(will/was)+ 时间段 + before引导的时间状语从句:
该句型中,主句谓语动词be若为肯定式,意为“过多久才”;若为否定式时,意为“没过多久就”。
Eg : It will be long/ 3 hours before he comes back要过三个小时他才会回来
It was 3 hours before he came back 过了三个小时他才回来
⑶ It + be + 时间点+ when引导的时间状语从句
这个句型中, it 代指时间,表示时间点的词前没有介词。
Eg : It will be Monday when he comes back 他周一的时候回来
It was Monday when he came back 他周一回来的
对比:It was on Monday that he came back (强调句)
⑷ It + is (about/high) time + (that) sb did/should dosth
意为“该是某人做…的时候了”, about/high是用于加强语气,that从句用should或动词一般过去时表虚拟。
亦可转换成 It + is+ time +(for sb )to do sth
Eg : It’s (high/about) time (that) we handed in/should hand in our homework
⑸ It / This / That +is+ the first(second …) time + that sb has done sth:
意为“这是某人第…次做…”,注意time前有序数词,主句是 is 时 ,从句要用现在完成时;如果主句用was ,则从句须用过去完成时。 Eg : It is the third time that I have seen the film
That was the second time that I have been there
IV.It 引导的强调句
强调句形式:It + is/was +被强调的部分+ that/who从句
Eg: It was last week that I met an old friend in the street // It was because he was ill that he didn't come to school yesterday
(强调原因状语从句时,只能强调由because所引导的从句)
判断方法:将It is/was和that去掉,若该句是一个完整无缺的句子即为强调句
常考考点:
①强调句型中的主谓一致Eg: It is you,rather than he,that are to blame for the accident.
②插入从句的强调句型 Eg: It was in the restaurant where we had dinner last Sunday that you left your wallet.
③强调句型的一般疑问句、特殊疑问句形式
一般疑问句:Is / Was it + 被强调部分+ that + 句子其余部分 Eg: Was it in 1933 that the Second World War broke out
特殊疑问句:疑问词+ be + it + that + 句子其余部分Eg: When was it that he changed his mind to take part in the activity?
④强调句型用于名词性从句, 尤其注意要使用陈述语序。
Eg: I don’t know when it was that he changed his mind to take part in the activity?
⑤not until用于强调句型 It is / was not until +被强调部分+ that +其他部分
Eg : It was not until midnight that she went back home
此句型只用until,不用till。但如果不是强调句型,till和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。
V.It其他常见用法:
It looks / appears as if 看起来好像……It looks as if she is ill
It seems that 似乎…… It seems that he will be back in a few days
It turns out that 原来是…… It turned out that the beautiful woman was a thief
It occurs to/strikes sb that… 突然想到……It occurred to me that I hadn’t locked the door
It happened that 碰巧…… It happened that he met his teacher in the street
It doesn’t matter whether/if…无论是…没关系 It doesn’t matter whether he will come or not
It is no wonder that 难怪… He works so hard It’s no wonder he could pass the exam
How did it come about that … “……怎么发生的?” How did it come about that his bike was thrown into the river
It all depends/that all depends那得看情况
It's up to sb由……决定,由……负责,取决于……
as it is (1)事实上,实际情况是……; (2)照原样
make it成功、做到、说定
Believe it or not信不信由你
Get it 明白了
it is neccessary for us to
i think it的it是形式宾语 形式主语和形式宾语通常用在不定式中,用it代替。
形式主语it +谓语或宾语+ adj +to do sth
如It is useful to study English。在这个句中真正的主语是后面的to do形式,it 叫形式主语。
形式宾语的句子 主语 谓语或宾语 it adj to do sth
如I think it is intresesting to dance 。真正的宾语是to do形式,it叫形式宾语。
形式主语和宾语的使用都是为了简化语句,让别人一目了然。之所以用it 代替是 避免头重脚轻。
“it”作形式宾语时的几种特殊结构
在英语中,当动词不定式、动名词或从句在句中充当宾语且其后又带有宾语补足语时,习惯上要在宾语补足语前使用一个没有具体意义的形式宾语it,而将真正的宾语移到补足语的后面,构成“动词+it+宾语补足语+不定式(动名词或从句)”结构。如:
She felt it her duty to take good care of them
她感到好好照顾他们是她的责任。
I think it no good going there now
我认为现在去那里没有好处。
The headmaster has made it clear that the school meeting will not be put off
校长说得很清楚校会不会推迟。
但我们常会碰到it用作形式宾语时之后没有形容词或名词作宾语补足语的情况,这一点在近几年高考试题中经常涉及,需引起同学们的注意。
I hate_____ when people talk with their mouths full (NMET 1998)
A it B that C these D them (答案为: A)
我讨厌人们一边吃饭一边说话。
I like _____ in the autumn when the weather is clear and bright (全国卷 2004)
A this B that C it D one (答案为: C)
我喜欢秋天晴朗的天气。
以上这两道高考题中,it用作形式宾语,它的真正的宾语则是由when引导的从句。“it”的这种特殊用法常出现在以下几种结构中。
A 动词+it+when / if 从句。常见于appreciate, enjoy, like, dislike, love, hate, prefer等少数动词之后。
We would much appreciate it if you could do us that favour
要是你们能帮我们这个忙,我们将非常感激。
I'd prefer it if I didn't have to finish the work
要是我不必完成那项工作,那就太好了。
B 动词+ it + that从句。常见于like, take, have, put等少数动词之后(it相当于that从句的同位语)。
I take it that they will succeed sooner or later
我认为他们迟早会成功的。
The newspapers have it that some Japanese firms have gone bankrupt
报上说一些日本商号破产了。
Rumor has it that Mary is getting married 谣传玛丽快结婚了。
I take it that you have been out 我以为你一直出门在外。
Let me come and stay You can put it that it was arranged before
就让我来呆在这儿吧,你就说原先就是这样安排的。
C 动词 + it + 介词短语 + that从句。常见于bring it to one's attention;
owe it to sb; take it for granted 等结构中。
I owe it to you that I finished my work in time
多亏有你我才及时完成了工作。
Don't take it for granted that they will support you
不要想当然地认为他们会支持你。
D 动词 + 介词(短语) + it + that从句。常见于answer for, depend on, rely on, insist on, look to, see to, stick to 等结构中。
I'll see to it that everything is ready in time
我将负责按时做好一切准备。
You may depend on it that Tom will help you with your English
你放心,汤姆会帮助你学英语的。
I’m counting on it that you will come 我指望着你会来。
E 动词+ it +过去分词+从句。常见于几个可以带过去分词作宾语补足语的动词之后。
I heard it said that that factory was founded in 1995
我听说那家工厂是1995年创建的。
They haven't made it known where the meeting is to take place
他们没有宣布会议在哪里召开。
“It”作形式主语和宾语
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在特殊句型中作形式主语和形式宾语用法,进行如下归纳分析,以供学习参考。
一、 It 用作形式主语
当不定式(短语)、动名词(短语)或从句在某个句子中作主语时,为保持句子结构前后平衡,避免头重脚轻,因此常用it作形式主语置于句首,而将真正的主语放在句尾。此时it只起先行引导作用,本身无词义。
eg It is wrong to tell a lie
(说谎是错误的。) 〔It为to tell a lie的形式主语〕
It is no use arguing about it
(争吵是没用的。) 〔It为arguing about it的形式主语〕
It is uncertain who will come
(谁要来还不确定。) 〔It为who will come的形式主语〕
It 作形式主语的常见句型:
① It + be + 形容词 + to do sth / doing / that …
eg It is very important to learn a foreign language
(学一门外语非常重要。)
It is useless crying over the spilt milk
(覆水难收。)
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 …
eg 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**真遗憾。)
It is a truth that there would be no new China without the Communist Party
(没有***就没有新中国,这是毋庸质疑的。)
③ It + be + 过去分词 + that …
该句型常见动词有:say, hope, think, suppose, expect, report, know, believe, decide, etc
eg It is said that they have invented a new type of computer
(据说他们发明了一种新型电脑。)
It is believed that China will become one of the strongest countries in the world
(大家都相信中国将会步入世界强国之列。)
It was reported that more than 170 thousand people died in the 2004 tsunami
(据报道,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 …
eg 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。
eg 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?)
⑥ It + takes + (sb) + some time + to do sth
这是一个表示“(某人)花多少时间干某事”的句型,其中it是形式主语,代替后面的不定式(to do sth),句型中的sb也可以省略。
eg It took me some time to read the reading materials
(我花了一些时间才读完那段阅读材料。)
It took him fourteen hours to go to New Zealand from Shanghai by plane
(从上海乘飞机去新西兰花了他14小时。)
How long does it take you to go to Beijing from Qingdao by train
(从青岛坐火车到北京一般要花多久时间?)
I am not sure, but I think it takes at least nine hours to get there
(我不能肯定,但估计至少要九个钟头才能到那儿。)
二、It 用作形式宾语
当不定式(短语)、动名词(短语)或从句在某个句子中作宾语时,为保持句子结构平衡,避免句式结构的混乱,常用it作形式宾语,而将真正的宾语放在句尾。此时it仍只起先行引导作用,本身无词义。
下列四种情况须用it 作形式宾语:
① 当不定式(短语)、动名词(短语)或从句在复合宾语结构中作某些动词的宾语时(如think, make, find, consider, feel, suppose等);
eg They found it pleasant that they worked with us Chinese
(他们发现与我们中国人一起工作很愉快。)
I don’t feel it difficult to understand the Special English
(我觉得理解英语特别节目并不难。)
He makes it a rule never to borrow money
(他立志决不向别人借钱。)
I think it no need talking about it with them
(我认为没必要跟他们谈。)
② 某些表示“喜、怒、哀、乐”的动词,如like, enjoy, love, hate等,往往不能直接接宾语从句;
eg I don’t like it that he’s so lazy
(我不喜欢他那么懒惰。)
I hate it when my mother asks me to eat eggs
(我讨厌母亲要我吃鸡蛋。)
③ that引导的宾语从句不能直接作介词的宾语;
eg You may depend on it that we shall always help you
(尽管放心,我们会随时帮你的。)
Would you see to it that she gets home early
(你负责保证她早到家,好吗?)
He insisted on it that he was innocent
(他坚持说自己是无辜的。)
④ 由及物动词与介词组成的固定搭配中,宾语从句若作该动词的宾语时,须借用it。
eg I leave it to your own judgement whether you should do it
(我让你自己判断这事是否该做。)
We owe it to you that there wasn’t a serious accident
(多亏了你才没有发生严重事故。)
试比较下列高考题,选出最佳答案:
1 Is _______ necessary to complete the design before National Day (MET89)
A this B that C it D he
2 I don’t think _______ possible to master a foreign language without much memory work (MET90)
A this B that C its D it
3 Does _______ matter if he can’t finish the job on time (MET91)
A this B that C he D it
4 Tom’s mother kept telling him that he should work harder, but _______ didn’t help (MET93)
A he B which C she D it
5 _______ is a fact that English is being accepted as an international language (MET95)
A There B This C That D It
6 I hate _______ when people talk with their mouths full (MET98)
A it B that C these D them
7 Don’t _______ that all those who get good grades in the entrance examination will prove to be the most successful (上海98)
A take as granted B take this for granted
C take that for granted D take it for granted
8 I like _______ in the autumn when the weather is clear and bright (MET2004)
A this B that C it D one
模拟练习:
1 _______ happened _______ he is unfit for the office
A This; that B That; that C It; that D He; that
2 We took _______ for granted that they would accept our advice
A that B this C it D them
3 _______ that the scientist will give us a talk next month
A Is true B Is it true C It’s true D It’s truly
4 _______ doesn’t matter much _______ dress you are going to wear
A This; that B That; who C It; which D It; who
5 _______ is going to America for further study
A He is said that B People said that he
C It was said he D It is said that he
6 They are good friends _______ is no wonder that they know each other so well
A This B That C There D It
7 Is _______ possible to fly to the moon in a spaceship
A this B there C that D it
8 She liked _______ when he kissed her
A him B that C one D it
9 _______ will do you good to do some exercise every morning
A It B There C Those D One
10 We think _______ our duty to pay taxes to our government
A that B this C its D it
Key: 高考真题: 1-8 CDDDDADC
模拟练习: 1-5 CCBCD 6-10 DDDAD
:
1It is+被强调部分+that
该句型是强调句型,将被强调的放在前面,其他部分置于之后,强调的主语如果是人,可以用来替换,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他从句的方法。
It was they that (who) cleaned the classroom yesterday It was in the street that I met her father
It was with great joy ___he received the news that his lost daughter had been found (2004 福建)
A because B which C since D that (D)
2 It is not until +被强调的部分+ that
该句型译成汉语“直到……才”,可以说是的强调形式。It was not until she took off her dark glasses that I realized she was a film star =Not until she took off her dark glasses did I realize she was a film star =I didn’t realize she was a famous film star until she took off her dark glasses
It was ___back home after the experiment (2004 湖北)
A not until midnight did he go
B until midnight that he didn’t go
C not until midnight that he went
D until midnight when he didn’t go (C)
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…
该句型和上一句同属一个句型。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,真正的主语是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…
该句型和上一句属一个句型。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)。可以省略,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 …
在该句型中,that后的从句一般用虚拟语气(should+动词原形),should可以省去,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:常用过去时态表示虚拟,有时也用should+动词原形,should 不能省。常译为“是(正是)……的时候……”
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…
该句型应和上一个句型区别开来。该句型中不用虚拟语气,而用完成时态。至于用哪种完成时态,由主句的谓语动词的时态来决定。如果是一般现在时,从句用现在完成时态;如果是一般过去时,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…”。
10 It is …since…
该句型主要用作处理瞬间动词的完成时,要和表示一段时间的时间状语连用。主句中是时间作表语,其时态是现在时和完成时,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
It is almost five years ___we saw each other last time (2005 北京)
A before B since C after D when(B)
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,主句中的时态常是一般将来时或过去时两种时态,主句中的表语多是long ,not long ,3 days, 2 weeks等表示时间段的词和短语。常译为“…之后才”,“没过……就……”
It was 3 days before he went to Beijing
It will not be long before he finishes his job
13 It happens (seems, looks, appears) that…
该句型中的it 是形式主语,that 引导的是主语从句,主句中的happen, seem等词是不及物动词。
It happened (so happened) that he met his teacher in the street (碰巧……)
It seems that he will be back in a few days (看来……)
The Foreign Minister said, “___our hope that the two sides will work towards peace” (2004北京)
A This is B There is C That is D It is (D)
14 It takes sb…to do sth
该句型中的不定式是真正的主语,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 It doesn’t matter whether…
该句型中的引导的从句是真正的主语,该句型译为“不论(是否)……没关系……
It doesn’t matter whether they are old
17.It is kind (of sb) to do sth
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引出,主句中的形容词必须是能表示逻辑主语的形容词。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等。这个句型可以改写为sbis kind to do sth
It is kind of you to stay so =You are kind to say so
18 It is necessary (for sb) to do sth
该句型与上一句统属一个句型。如果不定式的逻辑主语是由for 引出的,主句的形容词通常是表示重要性,紧迫性,频繁程度,难易,安全等情况的形容词。常见的形容词有:
Important,necessary,natural,easy,safe,common,,normal,hard,difficult,dangerous,unusual,grape, impossible, pleasant等。
It is important for her to come to the party =It is important that she (should) come to the party
19 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:“看起来好像……”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 looks as if he was ill (事实上没有生病)
It seemed as if he was dying
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“7123结构”
7指主句中的常用的动词:think, believe, make, find, consider, feel, take
1指的是形式宾语it
2指的是宾补的两种形式:形容词和名词
3指的是真正宾语的三种形式:不定式短语,动名词短语或that引导的宾语从句。
We think it our duty to clean our classroom every day
XiaoLi felt it important learning English well
They found it difficult that they would finish their work in two days
-Do you like ____here
-Oh, yes The air, the weather, the way of life Everything is so nice (2004 全国卷二)
A this B these C that D it (D)
1 一般疑问句
Is it back?
句中有be动词变一般疑问句时直接把be动词提到主语的前面。
2 否定句
It isn't black
句子中有be动词变成否定句时,直接在be动词的后面加not
3 特殊疑问句
What colour is it?
问颜色用what colour
4 Is it black or white?
“It” 用法及其句型和固定搭配,是英语语法的重点、难点,又是近几年考试的热点,因此在复习中应给予足够的重视。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
(2)It be adj of sb to do sth
(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
2 It替代作主语的从句常见句型
(1)It is + noun +从句
(2)It is adj +clause
It’s surprising that… (should)………竟然……
It’s a pity/shame that…(should)………竟然…
(3)It verb sb + clause= It is v-ing + clause
It+surprise/delight/interest/disappoint/worry/disturb/annoy/amaze/bother/concern/frighten/please/anger sb that…
(4)It verb (to sb) that…= sb/sth verb to do
(verb = appear, seem, come about, emerge, follow, chance, happen, occur, transpire, turn out , work out)
(5)It is v-ed that…=sb/sth is to do
(verb=say, report, think, believe, hope, expect, agree, accept, decide, determine, intend, plan, understand, know)
四、It 作形式宾语
用来替代作宾语的从句、动词不定式、动名词,而把真正作宾语的从句、动词不定式、动名词置于句尾。
It 作形式宾语的常见句型:
1 verb+ it+ adj/noun (for/of) to do/clause (verb=think, believe, suppose, consider, feel, make, keep…)
五、强调句型
It is/was+被强调部分+ that(who)… 强调句型用来强调谓语动词以外的任何句子成分。当被强调部分是人时也可以用who。
在使用强调句型时需注意以下几点:
1 请注意强调句型的特殊疑问句
2 在强调原因状语从句时,只能强调由because所引导的从句。
3 在强调not … until结构时必须把not与until一起放到被强调的位置上。
4 注意强调句型与定语从句的区别。
六、It 常用的固定搭配
1 make it
(1)在口语当中相当于succeed,表示:成功、做到、说定、赶上、及时到达 。
1、指代性it一般是指人称代词it,it作人称代词时可指代事物、动物、婴儿、未知的人或一件事。2、指代性it一般是指人称代词it,it作人称代词时可指代事物、动物、婴儿、未知的人或一件事。3、it做先行词。4、it做形式宾语。5、引导强调句的it。 扩展资料 形式主语是动词不定式的一种,它也是逻辑主语, 可以把它归类到逻辑主语的第一种(不定式的逻辑主语) 用作宾语的不定式,用作目的状语,用作结果状语的不定式都是属于不定式的大概念里面的。
一、 It 用作形式主语
当不定式(短语)、动名词(短语)或从句在某个句子中作主语时,为保持句子结构前后平衡,避免头重脚轻,因此常用it作形式主语置于句首,而将真正的主语放在句尾。此时it只起先行引导作用,本身无词义。
eg It is wrong to tell a lie
(说谎是错误的。) 〔It为to tell a lie的形式主语〕
It is no use arguing about it
(争吵是没用的。) 〔It为arguing about it的形式主语〕
It is uncertain who will come
(谁要来还不确定。) 〔It为who will come的形式主语〕
It 作形式主语的常见句型:
① It + be + 形容词 + to do sth / doing / that …
eg It is very important to learn a foreign language
(学一门外语非常重要。)
It is useless crying over the spilt milk
(覆水难收。)
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 …
eg 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**真遗憾。)
It is a truth that there would be no new China without the Communist Party
(没有***就没有新中国,这是毋庸质疑的。)
③ It + be + 过去分词 + that …
该句型常见动词有:say, hope, think, suppose, expect, report, know, believe, decide, etc
eg It is said that they have invented a new type of computer
(据说他们发明了一种新型电脑。)
It is believed that China will become one of the strongest countries in the world
(大家都相信中国将会步入世界强国之列。)
It was reported that more than 170 thousand people died in the 2004 tsunami
(据报道,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 …
eg 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。
eg 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?)
⑥ It + takes + (sb) + some time + to do sth
这是一个表示“(某人)花多少时间干某事”的句型,其中it是形式主语,代替后面的不定式(to do sth),句型中的sb也可以省略。
eg It took me some time to read the reading materials
(我花了一些时间才读完那段阅读材料。)
It took him fourteen hours to go to New Zealand from Shanghai by plane
(从上海乘飞机去新西兰花了他14小时。)
How long does it take you to go to Beijing from Qingdao by train
(从青岛坐火车到北京一般要花多久时间?)
I am not sure, but I think it takes at least nine hours to get there
(我不能肯定,但估计至少要九个钟头才能到那儿。)
二、It 用作形式宾语
当不定式(短语)、动名词(短语)或从句在某个句子中作宾语时,为保持句子结构平衡,避免句式结构的混乱,常用it作形式宾语,而将真正的宾语放在句尾。此时it仍只起先行引导作用,本身无词义。
下列四种情况须用it 作形式宾语:
① 当不定式(短语)、动名词(短语)或从句在复合宾语结构中作某些动词的宾语时(如think, make, find, consider, feel, suppose等);
eg They found it pleasant that they worked with us Chinese
(他们发现与我们中国人一起工作很愉快。)
I don’t feel it difficult to understand the Special English
(我觉得理解英语特别节目并不难。)
He makes it a rule never to borrow money
(他立志决不向别人借钱。)
I think it no need talking about it with them
(我认为没必要跟他们谈。)
② 某些表示“喜、怒、哀、乐”的动词,如like, enjoy, love, hate等,往往不能直接接宾语从句;
eg I don’t like it that he’s so lazy
(我不喜欢他那么懒惰。)
I hate it when my mother asks me to eat eggs
(我讨厌母亲要我吃鸡蛋。)
③ that引导的宾语从句不能直接作介词的宾语;
eg You may depend on it that we shall always help you
(尽管放心,我们会随时帮你的。)
Would you see to it that she gets home early
(你负责保证她早到家,好吗?)
He insisted on it that he was innocent
(他坚持说自己是无辜的。)
④ 由及物动词与介词组成的固定搭配中,宾语从句若作该动词的宾语时,须借用it。
eg I leave it to your own judgement whether you should do it
(我让你自己判断这事是否该做。)
We owe it to you that there wasn’t a serious accident
(多亏了你才没有发生严重事故。)
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