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1、考点33 it的用法高考频度： 考向一 it作人称代词1.用来指代前文中提到的东西。既可指代具体的东西，也可指代一种情况。请看下面的例子1）I hear you bought a new bike, can you show it to me？ 2）If I can stop her coming to you, I shall do it. 3）I want to stay here for a night. Your wife wont like it此时要注意与其他代词如that, one, those, this, another等的区别： 1.I hear you bought a
2、new bike, I want to buy _ , too.此处应填one，因为这里我并不是要买你的车，而是一辆新车，one a new bike。 2.I have bought a new bike, but I still want to buy _ .此处应填another。我已有了一辆，再买另一辆。another another new bike。 3.We see him when we come to town, but _ isnt often.此处填that或it均可。指代前面我们去城里时可以看到他这一情况。 4.My seat is next to _ of the h
3、eadmaster.此处应填that，用来代替名词seat，thatthe seat。 5.The bikes made this year are better than _ made last years.此处应填those或the ones。代替前文的bikes，因其是复数概念，故用those或the ones，those the onesthe bikes。 2.也可以指动物Is this your dog？No, it isnt.3用来指代人。说明某人的身份或者做某事的人；指代婴儿或儿童；在不清楚某人性别时，也可使用 it，尤其在问答的形式中更为常见。例如： Who is it? I
4、ts me. Who is it there? Its I (me/you/he.).I thought it was Mary, but it was not she.Her face lighted when she saw who it was. 1.（2018新课标卷I语法填空）If you are time poor, you need run for only half the time to get the same benefits as other sports, so perhaps we should all give_70_a try.【答案】it running【解析
5、】考查代词或名词的用法。我们都应该试试跑步。此处give it a try意为：试试。此处it可以指running。故填it或running。2.Whos that at the door? _ is the milkman.A. He B. It C. This D. That【答案】B【解析】考查代词的用法。句意：谁在门外？是送牛奶的。因为不知道门外的是什么人。故用it指代不清楚的人。故选B。3.If I can help_, I dont like working late into the night.A. so B. that C. it D. them【答案】C 考向二 非人称代词
6、itit有时并不指具体的东西，而泛指天气、时间、日期、距离、价值、度量、温度、环境等，称为非人称的it：1.指天气：It is a lovely day, isnt it? It is a bit windy.2.指时间: It was nearly midnight when she came back. 3.指环境: It was very quiet in the caf. 4.指距离：It is half an hours walk to the city centre. 5指日期：Whats the date today? Its the eleventh, October.6指季节
7、：It is summer now.7指度量：It is about 20 pound/kg8.指价值：- Whats the cost of the dictionary?-It is sixty-three.9指温度Its 35 centigrade now. So I feel hot. He got his first book published. It turned out to be a bestseller. When was _? _ was in 2000 when he was still in college. A. that; This B. this; It C.
8、it; This D. that; It【答案】D 考向二 作形式主语，替代不定式、ing形式或主语从句（一） 作形式主语替代主语从句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。 It is very clear that hes round and tall like a tree. = That hes round and tall like a tree is very clear. It is
9、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. 2. It is said (reported/ learned/believed/thought/kn
10、own/told/hoped.) 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. 该句型常可以转换成含有宾语从句的复合句或者含有不定式作主补的简单句。例如： Its said that Tom has come back from abroad.People say that Tom has come back
11、from abroad.He is said to have come back from abroad. It is suggested ( ordered /demanded/insisted/commanded. ) 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 )
12、 arrive there in two hours. 3.It is a pity ( a shame /an honour/a good thing/a fact,/a surprise/. ) 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
13、遗憾！ 4. It happens (seems， looks， appears ) 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 ， 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 enjoys pop songs very much.看来他非常喜欢流行歌曲。该句型可转换成含不定式的简单句。如上述两句可分别转换为：He happened to meet his teacher in the street.
14、He seems to enjoy pop songs very much.5.it代替连接代词或连接副词引导的从句作形式主语 （1）It is known（not decided，not made clear，found out，discussed，being discussed，being considered，a question，uncertain等）连接代词或连接副词引导的从句。 It is still a question when we shall have our sports meet. 我们将什么时候举行运动会还是一个问题。 It is uncertain whether
15、he can attend this conference or not. 他能否来开会还不能确定。 （2）It doesnt matter（Its no wonder；It doesnt make too much difference等）连接代词或连接副词引导的从句。 It doesnt matter whether we go together or separately.我们一起去还是分开去都可以。 It is no wonder why he came here too late.他为什么来这么晚不足为怪(二)作形式主语替代不定式。常见的句型有： 1. . It is kind ( of sb. ) to do sth. 该句型中的不
