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it的用法

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可编辑 精品文档，欢迎下载 一、考查 it 用作形式主语的用法 当不定式、动名词、从句等用作主语时，为避免头重脚轻，通常在句首使用形式主语it，而把真正的主语放在句子末尾。如： It’s no good sitting up too late. 熬夜没有好处。 It is quite clear that he has read the book. 很显然，他读过这本书。 It doesn’t matter what he says. 他说什么没关系。 【特别提醒】注意it用作形式主语的三类特殊句式： 1.用作动词look, seem, appear, happen, occur, follow等的主语(后接that从句或as if从句)。如： It seems that he knows everything. 他好像什么都知道。 It (so) happened that I had no money with me. 碰巧我没带钱。 2.当系表结构后接有if 或when引出的状语从句时，通常在系表结构前使用形式主语表示说话人对某情况的看法。如： It was a great surprise to me when he did a thing like that. 他这样做使我很吃惊。 It would be a tragedy if anything went wrong. 如果出了什么事就是一个悲剧。 3.用于if it were not for… / if it hadn’t been for…(若不是因为)。在省略if的情况下，要进行部分倒装：were it not for…./had it not been for….如： If it hadn’t been for the freezing wind they could have reached the injured man in time. Had it not been for the freezing wind they could have reached the injured man in time. 要不是有刺骨的寒风，他们就及时赶到伤员身边了。 二、考查 it 用作形式宾语的用法 当不定式、动名词、从句等用作宾语且其后跟有宾语补足语时，就应在宾语补足语前使用形式宾语，而将真正的宾语移至句末： We found it difficult to persuade her. 我们发现很难说服她。 He makes it a rule to get up before dawn. 他习惯于天亮前起床。 I think it very strange that he goes out walking almost every night. 我认为他几乎每晚都出去散步是很奇怪的。 【特别提醒】注意it用作形式宾语的三类特殊句式：可编辑 精品文档，欢迎下载 1. 动词+it+if / when从句 当enjoy, like, dislike, love, hate, prefer, appreciate等动词后需要接一个if或when引导的从句时，此时必须要先在动词后接it作形式宾语。如： She won’t like it if you arrive late. 她不喜欢你迟到。 He hates it when people use his bike. 他讨厌别人用他的自行车。 I’d prefer it if I didn’t have to do so much work. 要是我不必做那么多工作，那就太好了。 I would appreciate it very much if you would help me with it. 如果你能帮助我做这事，我会十分感激。 2. 动词+介词+it+that从句 能用于此句型的主要有，即depend on, answer for, see to,like,dislike ,enjoy,love,hate,prefer,appreciate等。如： You may depend on it that he will turn up in time. 你可以相信他会及时赶到的。 I can’t answer for it that the boy is honest. 我不能保证这个男孩是诚实的。 I’ll see to it that all these letters will be sent to the post before twelve. 我将注意让所有的信件在12点以前送到邮局。 三、考查 it 在强调句中的用法 强调句的基本结构是：It+be+被强调部分+that(who)+其他部分。如： It was yesterday that he got married. 他是昨天结婚的。 It was a computer that he bought last week. 他上个星期买的是一台电脑。 【特别提醒】对于强调句的复习要特别注意两种情形： 1.当强调句有插入语或复杂修饰语时： It was lack of money, not of effort, that defeated their plan. 他们的计划受挫，原因是缺少钱而不是没有尽力。 It was more in sorrow than in anger that he criticized his former colleague. 他批评以前的同事，并非出于气愤而是为他惋惜。 2.当强调为特殊疑问句时： 一般疑问句：Was/is it+被强调部分+that…？ 特殊疑问句：特殊疑问词+一般疑问句？ Who was it that won the World Cup in 1982? 谁赢得了1982年的世界杯? 可编辑 精品文档，欢迎下载 How long ago is it that you last saw her? 你上一次看见她是多久以前的事？ 四、考查 it 、one和that 的区别 两者均可代替前面提到的事物，区别是：it指的是与前面已提到的事物为同一物，此时的it等于“the (this, that, my...)+名词”(也可代替只是代词this,that)；而one 指同类不同个，表泛指，此时的one等于“a+名词”；that同类不同个，表特指，等于the one .比较 ： I have a dictionary but I’ve lent it to Mary. 我有一本词典，但把它借给玛丽了。 I haven’t a dictionary; can you lend me one? 我没有词典，你能借我一本吗? The climate of South China is much better than that of Japan. 五、用作人称代词，代替前文提到得人或物，尤指判断不清的人。 Someone is ringing the door.Go to see who it is? 有人在按门铃，去看看是谁？ 六、用作非人称代词，表时间、距离、温度、天气、地点等 It is very noisy at the moment. What time is it by your watch? It’s very cold outside today. 七、考查 it 在习语中的用法 包括it的习语很多，比如make it就是其中很重要的一例。如： You can make it if you hurry. 如果你赶快还可以及时赶到。 He wants to make it as a writer. 他想作一名作家而一举成名。 You needn’t worry; he will make it. 你不必担心，他会办成的。

八、 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.(not until置于句首，句子要进行倒装)可编辑 精品文档，欢迎下载 =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) 九．虚拟语气的几种情况

1. 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… 2. 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 … 4.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。

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it的用法归纳

it的用法归纳

it用法归纳㈠1.it作人称代词1.1.it的最基本用法是作人称代词，主要指刚提到的事物，以避免重复:Ningbo is a beautiful city, isn’t it?1.2.也可以指动物或婴儿(未知性别的婴儿或孩子):Is this your dog？No, it isn’t.1.3.也可指抽象事物:It was a great surprise to me when he did a thing like that．2.非人称代词itit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：2.1.指天气：It is a lovely day, isn’t it?It is a bit windy.2.2.指时间:It was nearly midnight when she came back.2.3.指环境:It was very quiet in the café.2.4.指距离：It is half an hour’s walk to the city centre.3.it的其他用法3.1.表示谁在做某事的句子：Who is it? ---It’s me.Her face lighted when she saw who it was.3.2.用来泛泛的指某件事：So you are going to be married this time？When is it？It doesn’t matter.It is a shame, isn’t it?（二）引导词it的用法1.作形式主语为了避免头重脚轻，英语里面常常把it放在句子的开头，而把真正作为主语的动名词，不定式和句子放在句子的后面去。

请看下面的例子：It’s wrong to tell a tie.It took me ten minutes to get to the station.It’s no use getting there so early.It’s dangerous playing with fire.It’s a pity I didn’t think of it earlier.It’s not yet known where he has gone.It doesn’t matter whether he will come or not.2.作形式宾语当复合句中，不定式短语，动名词短语和名词性从句作宾语时，常常it用作形式宾语，而把真正的宾语放在宾语补足语之后。

It的用法(整理)

It的用法(整理)

--------------------------------------------------------------- 最新资料推荐------------------------------------------------------ It 的用法 Ⅰ。 用作人称代词 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。 Its hard work, but I enjoy it. 工作很辛苦，可是我乐意干。 Where is the dog? Its 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定未知人的身份。 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。 Who is it? Its me. 是谁啊?是我。 Listen. Someone is crying. Oh, it must be Mary. 听，有人在哭。

1 / 8 噢，一定是玛丽。 Someone must have been here. But we have no idea who it was. 一定有人来 过，但我们不知道是谁。

3 ． 代 替 某 些 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：

Whats this? Its 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? 4 ．用于上文提到的情况 He smokes in bed and I dont like it. 他在床上抽烟，我不喜欢他这样。

it的用法总结

it的用法总结


1.主要指刚提到的事物，以避免重复 2. 指不明身份或性别的人（婴儿） 3.表示时间；距离；天气；环境等
It指代时间的常用句型：
1.It is/ has been 时间段since… 2.It is (high/ about)time for sth. (for sb) to do sth. that… 3.It be (was/ will be) 时间段 before…
think; believe; consider; find; make等
1.I found it very interesting to study English. 2.He made it clear that he was not interested in this subject. 3.She doesn’t think it her duty to do such a job.
4.It is/ was 时间点 when…
5.It is/ was the序数词 time that…
Eg. 1.It is/ has been 5 years since he left here.
3.It will be about 50 days before we take the final exam.
Grammar
The use of “it”
Discovering “It”
1. It rains heavily. 天气
2. It is 20 kilometers from Granddad's house to 距离 James’. 3. It is November 11, 2005. 时间 4. It will be wonderful on the beach in such weather 环境 5. It is bad to smoke. 形式主语 6. It is likely that he will succeed. 7. I think it our duty to help the old. 形式宾语 强调句型 It可用作人称代词；形式主语；形式宾语；引导强调句型
It的用法

It的用法

It的用法一it的常用固定词组make it =manage it (成功) put it(表达)Got it (明白) Go for it（努力争取）take it（忍受）T ake it easykeep it up（继续干）Come off it（别吹牛了）Don’t mention it Forget it二it 作代词的用法（1）代替前文提到的东西或事情Eg. T om has failed in the exam, Have you heard about it?(2) 代替同名同物Eg. T om bought a new house, but it needed lots of work before he moved in.Eg. I still remember the accident and the troubles ____ has caused to me?A. whichB. whatC. itD. that(3) 代替指示代词起this, that 的作用Eg. What’s that? It is a radio.Eg. Whose room is this? It is theirs.（4）指明某人某事的身份或不知男女用itEg. Le t’s go to see who it is.Eg. Go to see who is ringing. It is Bill.(5) 指时间，金钱，距离，价值，量度，自然现象等Eg. It’s Sunday today. Eg. It’s very cold.Eg. It’s 5 yuan. Eg. It’ s 5 Kms from A to B.三it 作形式主语的用法（1）It be + adj +of/for sb to do sth(2) It be + adj( ture/ easy/ hard /necessary/ curious /obvious/likely/possible/probable/good/wonderful/natural/certain--) + that/whether 从句Eg. It is likely that I can pass the exam.Eg. It is certain that she will do well in her exam.(3)Itbe+v.p.p(said/reported/believed/supposed/expected/proved/decided---)+ that 从句Eg. It is said that T om has arrived in Beijing.(4)It be + 名词词组(a pity/sham/fact/wonder, an honour/a good thing/nosurprise---)+ that 从句Eg. It is a pity that I can’t go with you.(5)It seems/seemed/happened/appears---+ that 从句Eg. It now appears that they are in need of help.(6)It hits/strikes/occurs to sb + that 从句Eg. It hits me that I should turn to my teacher for help.Eg . It suddenly occurred to him ______ he had left his keys in the office.(12年江西)A. whetherB. whereC. whichD. that(7) It is no use/good +(in)+ving四it 作形式宾语的用法(1)主语+vt (like/dislike/hate/enjoy/make/appreciate/feel/love)+it+if/when引导的宾从Eg. I like _____ in the fall when the weather is clear.A. itB. thatC. oneD.thisEg. I hate it when sb is talking with his mouth full of food.(2)主语+vt(feel/find/consider/think/make---)+it+宾补(n/adj)+to/ving/从句Eg. I think it impolite to talk while eating.Eg. I consider it a great honour to be invited to your party.Eg. We thought it strange that T om didn’t come yesterday.Eg. He has made it clear that he won’t give up.(3)主语+vt(have表明，坚持说take认为，猜想hid e隐瞒publish公布---)+that宾从时，往往在从句前加it作形式宾语Eg. I take it that you will be leaving shanghai soon.Eg. We published it that we had finished it ahead of time.(4)主语+vt(answer for担保count on期待depend on依靠insist on坚持see to确保---)+ that宾从，往往在从句前加it作形式宾语Eg. I’m counting on it that you will come here.Eg. She will see to it that he goes ahead.五it的常用句式(1) It takes/took/will take sb sth to do sth(2) It is time+ for sth/to do sth(3) It be + adj +of/for sb to do sth(4) It is up to youIt is up to you to do sth(5) It is one’s turn/duty to do sth(6) It is no use/good +(in)+ving(7) It (all) depends/That ( all) depends(8) It is a waste of time +ving(9) It is possible/probable that从句(10)It be convenient for sb to do sth(11) It be likely that 从句=sb/sth be likely to do sthIt be not like sb to do sth(12) When it comes to sth/doing sth(13) It is no/not any wonder that从句(14) It/That is the best/worst/most interesting + n + that从句时态用现在完成时Eg. It is the most interesting book that I have read.Eg. It is the most instructive lecture that I ______since I came to this school.A. attentedB. had attentedC. am attentingD. have attented(15) It be not that A but that B(16) It/That/This is the +序数词+time + that从句用现在完成时It/That/This was the +序数词+time + that从句用过去完成时Eg._________________________________________Eg._________________________________________(17) It be/will be+一段时间+before从句=表示再过多久才--Eg. It will be half a year before I come back.Eg. It will be 3 weeks before we have the next exam.Eg. It is 2 hours before the medicine takes effect.Eg. It was some time before we realized the truth.Eg. It was 2 years before he became a doctor.Eg. It was about 600 years ____ the first clock with a face and an hour hand was made.A. beforeB. thatC. untilD. what(18) It be+一段时间+since从句中的动词如果是①延续性动词表示动作从最后一次发出到现在多长时间②短暂性动词表示动作从第一次发出到现在多长时间Eg. It is 3 days since I fell ill.Eg. It is 3 days since I was ill.Eg. It is 5 years since I lived in Beijing.Eg. It is 3 years since he joined the army.Eg. It is years since I enjoyed myself so much.Eg. How long do you suppose it is____ he got the news?A. beforeB. whenC. sinceD. After(19) It be+被强调部分+that/who(主语为人) 的强调句型Eg. It was yesterday that I met T om in the park.▲ Eg. It was yesterday that I met T om in the park. wasn’t it?▲ Eg. Was it yesterday that I met T om in the park?▲ Eg. When was it that I met T om in the park?▲ Eg. My teacher didn’t know when it was that I met T om in the park.▲ Eg. It is not only blind men who make such stupid mistakes. (否定式)▲ Eg. What a wonderful time it was that we had at the party.(感叹句)▲如果强调双宾语中的一个，不论是直接宾语还是间接宾语，根据动词的搭配关系，要加上一个介词to/for.Eg. Mr. Green gave T om a birthday present.→It was Tom that Mr. Green gave a birthday present to.→It was a birthday present that Mr. Green gave to T om.▲强调句型的五类复杂结构Eg. I still remember how many years ago it was thatI met her in the MountHuang.(与宾从结合）Eg. It's that he often fails in exams that makes his parents worried about him.(与主从结合）Eg. It was the news that he has succeeded that inspired them all.(与同从结合）Eg. Is it the school where you once studied that will be rebuilt with the help of the Project Hope?(与定从结合）Eg. It is only when one is ill that one realizes the value of health.(与状从结合）▲ It is/was not until…that从句，其中not until不能分Eg. It was not until I failed in the exam that I realized I should work hard.Eg.—When did you arrive at the party?—It was at sunset _____the clock on the wall struck seven.A. thatB. whereC. whenD. by whichEg. It is in Qingdao ___you’re going to pay a visit to ____this kind of washing machine is produced.A. /; thatB. that; whichC. /; whereD. that; whichEg. It was in the library _______ we often learned by ourselves that I met her for the first time.A. thatB. whereC. whenD. for whichEg. —When did you first meet John?—It was in a cinema _____ a new film was being shown.A. thatB. whereC. whenD. whichEg. —When did you meet your girlfriend for the first time ?—It was in 20002 ______ I was still in college.A. thatB. whereC. whenD. which答案：CABBC(20) It be+介词+时间+that 从句为强调句型Eg. It was at 6 o’clock that I got home yesterday.▲ It be+时间+when 从句为定语从句Eg. It was 6 o’clock when I got home yesterday.▲ It be+介词+地点+that 从句为强调句型Eg. It is on the farm that I work for 3 years.▲ It be+地点+where 从句为定语从句Eg. It is the farm where I work for 3 years.(21) It/That/This is (high/about) time that 从句用过去时=虚拟语气反意疑问句用isn't it?It/That/This was (high/about) time that 从句用过去完成时=虚拟语气反意疑问句用wasn't it?Eg.____________________________________________ Eg.____________________________________________。