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1、It用法和强调句型讲与练,授课教师：叶 军,一、代词 it.例如：(1).-When shall we meet again？-Make it any day you like；its all the same(NMET96)(2).-Can I help you,Sir？-Yes,I bought this radio here yesterday,but it doesnt work.(NMET96)(3)Its always difficult being in a foreign country,especially if you dont speak the language.(NM
2、ET2000)(4).We didnt plan our art exhibition like that but it worked out very well.(NMET2001)(5).A computer can only do what you have instructed it to do.(NMET2001)总结：代替前文提到过的事物或将会发生的事情。,例如：Someone is ringing the doorbell.Go and see.(NMET2000春，上海)A.who is it B.who it is C.who is he D.which one is it总
3、结：指说话者心目中的人或指做某动作的人或与某物有关的人。可以代替指示代词this 和that.,(1).-Alice,you feed the bird today,will you?-But I fed it yesterday.(NMET99)(2).Its the wind shaking the window.总结：指代除人以外的一切生物和事物。It 和one 都可以代替前文提到过的事物。其区别是：it 用来代替特指的人或物,也就是被代替名词的本身，即“同名同物”，它只可代替单数名词；而one 却是前文提到过的那类事物中的任何一个。,高考试题精选(1).The Parkers boug
4、ht a new house but will need a lot of work before they can move in.(NMET2001)A.they B.it C.one D.which(2).I was disappointed with the film.I had expected to be much better.(NEMT93)A.that B.this C.one D.it(3).I hope there are enough glasses for each guest to have.(NMET95)A.it B.those C.them D.one(4).
5、-Why dont we take a little break?-Didnt we just have?(NMET2000)A.it B.that C.one D.this,二、表示时间、距离、天气、季节以及其它自然现象或景观。it 一般用作无人称动词句的主语。例如：1时间；主要用于下面的句型中：(1).Its time“是该干的时候了”Its time to do sth.Its time for+n.Its time for sb.to do sth.Its time+that 从句（从句谓语动词用过去时形式或 should+动词原形）(2).It+be+when 从句“当的时候”例如：
6、Was it 8 oclock you heard someone at the door?A.when;knocking B.when;knock C.that;knocking D.that;knock,(3).It is/has been+一段时间+since 从句“自从已有多长时间了”例如：-What was the Party like?-Wonderful.Its years I enjoyed myself so much.(NMET93)A.after B.when C.before D.since(4).It+be+一段时间+before 从句“过多久才”例如：It will
7、 be quite a long time she is back again,so dont be too cross with her.(NMET92)A.that B.since C.before D.until,(5).Its the first(second,third)time+主语+现在完成时，表示“这已是第一（二、三次）做”例如：-Do you know our town at all?-No,It(This)is the first time I here.(NMET92)A.was B.have been C.came D.am coming,2.距离：How far is
8、 it to the railway station from here?3天气：It often rains in summer and snows in winter here.4季节：It was late autumn.5环境或情况：It is dangerous and everybody must leave.Is it well with you?,.引导词it.1it 用作形式主语动词不定式（短语）、动名词（短语）或从句在句中作主语时，常用it作形式主语，放在句首，而把真正的主语放在后面。例如：(1).It is generally believed that teaching
9、 is as much an art as it is a science.(NMET2001)（人们普遍认为教学不仅是一门科学，而且是一门艺术）(2).Having suffered such heavy pollution already,it may now be too late(for people)to clean up the river.(NMET2001)(3).It takes a long time to go there by train;its by road.(NMET93)A.quick B.the quickest C.much quick D.quicker,
10、e.It is no use/good/need doing sth.例：It is no use learning without thinking.f.It+v.+sb.+that 从句结构。g.It is/was up to sb.to do sth.该由某人负责/决定做某事。It is ones turn to do sth.该轮到某人做某事了。Whose turn is it to do sth?该轮到谁做某事了？,高考试题精选(1).is a fact that English is being accepted as an international language.(NMET
11、95)A.There B.This C.That D.It(2).Does matter if he cant finish the job on time?(NMET91)A.this B.that C.he D.it(3).It worried her a bit her hair was turning gray.(NMET92)A.while B.that C.if D.for(4).-Shall we go to the bookstore immediately?-.(NMET2000,上海)A.It doesnt matter B.Its up to youC.Dont ment
12、ion it D.Thats all right,高考试题精选(1).I dont think possible to master a foreign language without much memory work.(NMET91)A.this B.that C.its D.it(2).You should make it a rule to leave things where you can find them again.(NMET98)(3).I hate when people talk with their mouths full.(NMET99)A.it B.that C.
13、these D.them,.it 用于强调句型中 who 强调句型：It is(was)+强调成分+可用 that来强调原句子中的主语、宾语、状语、宾语补足语和间接宾语。强调的成分可以是一个词，一个短语，也可以是一个从句。,(1).强调句型的时态要以原句的时态为依据。原句用现在时，强调句用is；若原句为过去时，强调句中则要用was。例如：I met him in the street yesterday.（原句）It was him that I met in the street yesterday.（强调宾语him，原句met为过去时，强调句也用过去时was。）(2).要注意主谓一致性。例
14、如：Its we who are to answer for it.Its I,not my parents,that am waiting for the bus.(3).强调时间、地点状语时不得用when和there取代that，也应避免使用which。,(4).被强调的是疑问句，改为强调句后仍用疑问句结构。例：What do you want me to do?What is it that you want me to do?(5).被强调的如果是not until;because；only after等状语从句时，习惯上用”It is/was not until that”;“It
15、is(was)because that”,“It was only after that”结构。例如：It was not until 1920 regular radio broadcasts began.(NMET95)A.while B.which C.that D.since,(6).注意强调句型与其它句型的区别：强调句型和定语从句的区别主要从以下两方面考虑：1).强调句式“It is(was)that/who”可去掉，不影响句意，剩下的词能单独组成一个完整的句子，而包含定语从句的句子不能这样做。如：It is tomorrow that they will begin their w
16、ork.Tomorrow they will begin their work.2).It is(was)后，若是名词及名词词组，其后一般是定语从句；若是副词、介词短语，则句子属强调句式。例：It is in the hall a meeting was held.(that/where)在此句中，若选that，句子是强调句型；若选where，则是定语从句。试比较：Was it on the day that you joined the army?（强调句式）Was it the day when you joined the army?（定语从句）,高考试题精选(1).is known t
17、o everybody,the moon travels round the earth once every month.(NMET2001)A.It B.As C.That D.What(2).It is the ability to do the job.matters not where you come from or what you are.(NMET2000)A.one B.that C.what D.it,(3).It was for this reason her uncle moved out of New York and settled down in a small
18、 village.(2001春，上海)A.which B.why C.that D.how(4).It was only when I reread his poems recently I began to appreciate their beauty.(NMET98)A.until B.that C.then D.so(5).It was how the young man had learned five foreign languages attracted the audiences interest.(NMET2000春，上海)A.so that B.that C.what D.
19、in which,(6).It was not she took off her dark glasses I recognized she was a famous film star.(NMET92)A.when;that B.until;that C.until;when D.when;then(7).It was about 600 years ago the first clock with a face and an hour hand was made.(NMET97)A.that B.until C.before D.when(8).Was that I saw last night at the concert?(NMET95)A.it you B.not you C.you D.that,总 结,作代词,作引导词,Thank you,Good-bye.,
