it用法练习题.doc

It的用法练习；1.It took us over an hour along the street.A. walk B. to walk C. walking D. walked2.I think it a great honour to visit your country.A.to invite B.inviting C.having invited D.to be invited3.Many people now make a rule to buy cards for their friends before Christmas.A.themselves B.it C.that D.this4. is very clear to everyone that hes round and tall like a tree. A.This B.What C.That D.It5.In the United States, bus travel doesnt cost much as train travel, ?A.dont they B.does it C.do they D.doesnt it6.Someone is at the door, who is ?A.this B.that C.it D.he7.It is raining cats and dogs. .A.So it is B.So is it C.Neither it is D.Neither is it8.My home is in that tall building over there. ?A.Can it see B.Can see it C.Can be seen it D.Can it be seen9. raining hard for 3 hours without stopping.A.It is B.It was C.It has been D.It had been10.Has the boy got his bicycle now?Yes, the police gave .A.him to himB.it to it C.it to himD.him to it11.Boy, It is, looks like spring is coming soon.Yeh, Itll just be a few more weeks.A.its really a nice day today, isnt it?B.what knid of weather are we going to have today?C.do you think it is going to rain today?D.what it like outside today?12.It is important their offer.A.reject B.rejects C.to reject D.rejecting13.Has been decided when we are to hold the sports-meeting?A.that B.this C.it D.what14.Did Li Lei call me while I was out?Yes, it was that called you.A.him B.he C.who D.whom15.Nothing is wrong with the radio ?A.isnt it B.is that C.is it D.isnt that16.I dont know makes her afraid of having her business discussed.A.what it is about Mary thatB.that is it abut Mary whatC.what is it about Mary thatD.that is about Mary what17.Which sentence is wrong?A.I felt it impossible for him to take the exam.B.I found it impossible that he might take the exam.C.I thought that he might not take the exam.D.In my opinion he might take the exam.18.I dont think difficult for a Chinese student to master a foreign language within five yearsA.that B.it C.too D.very19.Its the second time you late this week.A.arrive B.arrived C.have arrived D.had arrived20.It will not be we meet again.A.long before B.before long C.soon afterD.shortly after21.Its demanded that we there on foot.A.not to go B.dont go C.not go D.wont go22.“It” is often used to a baby.A.mean to B.stick toC.point to D.refer to23.It was not until 1936 basketball became a regular part of the Olympic Games.A.that B.when C.which D.then24. you met the Englishman?A.Where it was that B.Who it was that C.Where was it that D.Where was that25. that she has gone to the United States?A.Was it trueB.Is it true C.It is trueD.It was true26. certain that his invention will lead to the development of production.A.Thats B.This is C.Its D.Whats27. in 1914 the First World War broke out?A.Was that, thatB.Was that, when C.Was it. that D.Was it, when28.It is important that she with Mr Williams immediately.A.speak B.spoke C.will speak D.to speak29. that theres another good harvest this year.A.It says B.It is said D.It was said D.He was said30.Itll be the first time the play.A.Ive watched B.Ill watch C.I watch D.I would watch31.Its no use over spilt milk.A.cry B.crying C.that you cry D.for you to cry32.It was great joy he received the news that his long lost son would return homeA.as B.that C.so D.forIt的用法一.it表示时间常用于句型： 1、It is/has been/was一段时间since 从句意为“自以来已有多长时间了”或“自不以来已有多长时间了”。2、It is/ was/ will be + 一段时间 + before 从句。表示“在（做某事）前过了多长时间”，或“过了多长时间才”。这个句型和上面句型中时间都是时间段，如long、years、months、weeks、five days、three hours、twenty minutes等。不过主句的时态多用一般将来时或一般过去时。 It will be several years before we meet again. 我们要过好几年才能再见面。 It was not long before they set out for the front. 不久他们就出发去了前线。3. Its/was + + when从句.翻译：“.是在某个时刻” It was ten years ago when I graduated.我毕业是在十年前。4. Its time + (for sb.) to do sth.表示 “该是（某人）干的时候了5.Its(high/about)time+thatclause时，表示“现在某人该做某事了that可省略，从句中的谓语动词有两种形式，用动词的过去式(be用were)；或者用shoud+动词原形（should不能省略)。二.用 it 作形式主语或形式宾语的句型主要有:1.It + be + adj.+ (for sb./of sb ) + to do sth. 2.It + be + no good/ no use doing sth. 3.It be过去分词that从句 例如；It is said, reported, announced, hoped, thought，told，believed，expected，decided， known + that 从句，该句型通常可以转换成sb/sth is said to do/be 如果过去分词是suggested,ordered,demanded,requested,required,insisted等词,那么that 后的从句应用虚拟语气should + 动词原形，should 可以省去4.It be形容词 that从句 如果形容词是important , necessary, strange, natural, essential, desirable, astonishing等. 那么that 后的从句应用虚拟语气should + 动词原形，should 可以省去5、It be名词（词组）a pity，an honor，a good thing，a factthat从句6、It seem appear happen的适当形式that从句。7、It doesnt matter（It doesnt make too much difference等） when/ where/ which/ whether 等从句。8.Its no wonder + that 难怪,怪不得9、S + 及物动词(常用think, believe, make, find, consider, feel)+it + adj. / n. + 不定式或从句。10. It takes sb. . to do sth.“做要花某人”11. It is /was/ the first/second/third time that (从句用完成时) 12. It is up to sb. to do sth 应由某人做某事。三. It is + 被强调部分 + that/who + 剩余部分it组成的惯用语。it可以用在一些动词、介词之后，表示特定的意思，构成固定搭配。如：take it easy (别紧张，放松点)，make it (做到，成功)，believe it or not (信不信由你)，forgetit (算了吧)，manage it (设法做成某事)，thats it (这就对了，就这样)，Dont mention i