it的用法和练习

1、重点代词it的用法和练习(含答案)(1) it用做人称代词的用法it用作代词，意为“它”，既可以指人，也可以指物。it做人称代词，可以用来代替一个名词、短语、从句或句子，以避免他们在句中的重复。这是可以指提到过的，也可以指未提到的，在句中做主语、表语和宾语。1) 指事物，it可以知道除人以外的任何事物或动物。Idroppedmywatchanditbroke.我把手表掉在地上摔坏了。2) 指人，it主用用于指性别不明的婴儿或只听其声不见其人的人，如：Isitaboyoragirl?是男孩还是女孩？Thereisaknockonthedoor.Itmustbethepostman.“Listen

2、.Someoneiscrying.”“Oh,itmustbeMary.”3) 代替某些代词。代词it可以用于代替指示代词this,that以及复合不定代词something,anything,nothing等，如：“What'sthis?""It'sanewmachine"(2) it用作非人称代词的用法1)it用作非人称代词主要用来指时间、距离、价值、天气、气温及温度等自然现象。如It'stoolatetogotherenow.现在去那已经太迟了。Itrainedalldayyesterday.昨天下了一整天雨。It2)用于某些句型。&#

3、39;stimeforsth.该做某事了。ItItItstodosth.stimeforsbtodosth.s(about/high)time+that-ould+动词原形)It'sfirst(second)time+that-It's+时间段+since从句。自从以来有一段时间了。'是时候该做某事了。某人该十某事了。从句。某人该做某事了。(从句谓语用过去式，有时候用sh从句。某人第几次十某事。(从句谓语动词用现在完成时)It's+时间段+before从句。过多长时间才(3) it用作形式主语的用法。1) 当不定式、动名词、从句等复杂成分做句子主语时，为保持句子

4、的平衡，通常把真正的主语放在句末，而句首使用形式主语ito如It'sveryimportanttorememberthis.It'shardworkclimbingmountains.It'sunknownwhenhewillcome.2) it用作形式主语的重要句型。 It+be+adj.+for(of)sbtodosth.某人做某事Itishardforhimtomakeuphismind.他彳艮难下定决兀、。Itwasfoolishofhertosaysuchathing.她说那样的话，太愚蠢了。提示：此句型中的介词of和for的区别是：of用丁指某人的性格，届性

5、，特征等。介词for表示对象，意为“对来说”。 Ittakes/tooksb+时间段+todosth.某人做某事花了时间。Ittookmetwohourstofinishmyhomework. Itisuptosbtodosth.该由某人做某事了。It'suptoyoutomakethechoice.该由你来做选择了。 Itlooks(seems,appears,happens,occurs)that(asif)似乎Itseemsasthoughhedidn'trecognizeme.(4) it用作形式宾语的用法。当不定式、动名词、从句等复杂成分用作宾语且后面跟有宾语补足语时

6、，通常会在宾语补足语前使用it作形式宾语，而将真正的宾语移至句末。其基本结构为“动词+it+宾语补足语+不定式(动名词或从句)”Ifinditdifficulttodothejobwell.Ithinkitbestthatyoushouldstayhere.Wethinkitnousecomplaining.1) 用作形式宾语的几个特殊结构： 动词+it+that-从句Ithinkit(that)hewillcomeontime. 动词+it+when(if)-从句Werallyappreciateitwhensheofferedtohelp. 动词+prep.+it+that-从句Ican&

7、#39;tanswerforitthathewillcome.我不能保证他会来。 动词+it+介词短语+that-从句Itookitforgrantedthathewouldhelpus.(5) 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。Itwasacomputerthatheboughtlastweek.练习部分1. Ilikeintheautumnwhentheweatherisclearandbright.A.thisB.thatC.itD.one解析C.句中like为及物动词，后面需要跟宾语.而like之后不可直接接从句作宾语.it

8、可用丁某些动词(hate,appreciate)和介词之后作笼统宾语.2. Hewasnearlydrownedonce.Whenwas?wasin1998whenhewasinmiddleschool.A.that;ItB.this;ThisC.this;ItD.that;This解析A.第一空用that指代上文提到的事情;第二空用it指代第一空的that3. TheParkersboughtanewhousebutwillneedalotofworkbeforetheycanmovein.A.theyB.itC.oneD.which解析B此处it指代前面出现的anewhouse.it指代上

9、文提到的同一事物，为特指;而one通常指代同类事物中的某一个.4. Someoneisringingthedoorbell.Goandsee.A.whoisheB.whoheisC.whoisitD.whoitis解析D此处it用作人称代词，指不明身份，性别的人;宾语从句应用陈述语序.5. Infactisahardjobforthepolicetokeeporderinanimportantfootballmatch.A.thisB.thatC.thereD.It解析D此处it用作形式主语.6. Mike'smotherkepttellinghimthatheshouldworkha

10、rd,butdidn'thelp.A.heB.itC.sheD.which解析B此处it用以指代前面的句子，可用that替换.7. Sinceyouhaverepairedmycomputer,isnoneedformetobuyanewone.A.itB.thereC.thisD.that解析B考查固定句型Thereisnoneedforsbtodosth8. Theofficialmadeclearthathewoulddoeverythingpossibletosolvetheproblem.A.itB.thisC.thatD.him解析A此处it用作形式宾语.9. Doyoul

11、ikehere?Oh,yes,theair,theweatherandthewayoflife.Everythingissonice.A.thisB.thereC.thatD.it解析D此处it泛指自然环境.10. Bill'saimistoinformtheviewersthatcigaretteadvertisinginTVisillegal,?A.isn'titB.isitC.isn'theD.ishe解析A主语为“Bill'saim”.11. ismentionedabove,thenumberofthestudentsinseniorhighschoo

12、lisincreasing.A.whichB.AsC.ThatD.It解析B非限制性定语从句中，as/which均可指代整句话的内容，但which只能放在主句后，译为“这一点”；as则位置灵活，译为“正如”.12. Itwaswithgreatjoyhereceivedthenewsthathislostdaughterhadbeenfound.A.becauseB.whichC.sinceD.that解析D考查强调句型.13. Itwasbackhomeaftertheexperiment.A.notuntilmidnightdidhegoB.untilmidnightthathedidn&

13、#39;tgoC.notuntilmidnightthathewentD.untilmidnightwhenhedidn'tgo解析C考查notuntil结构强调句型.14. Why!Ihavenothingtoconfess.Youwantmetosay?A.WhatisitthatB.WhatitisthatC.HowisitthatD.Howitisthat解析A考查强调句型的特殊疑问句句式.15. Itistheabilitytodothejobmattersnotwhereyoucomefromorwhatyouare.A.oneB.thatC.whatD.it解析B考查强调

14、句型.被强调部分是notwhereyoucomefromorwhatyouare(but)theabilitytodothejob.为了平衡结构，部分移至句尾1. (据报道)alotofpeoplelosttheirjobsinthecitylastmonth.(report)2. (据报道)，alotofpeoplelosttheirjobsinthecitylastmonth.(report)3. (毫无疑问)hewillbeadmittedtothekeyuniversity.(doubt)4. Hehasmadesomegreatmovies.(这一点是毫无疑问的).(doubt)5.

15、 (没必要)foryoutogetupearlytomorrow.(need)6. (碰巧)Ihadbeenawaywhenhecalled.(happen)7. (看来)nobodyknowswhathashappened.(seem)8. (看起来彳以乎)it'sgoingtorain.(look)9. (彳艮可能)thethievesdon'tknowhowmuchitisworth.(likely)10. (我也许可以)toleaveamessageforher.(possible)1.It'sreportedthat2.Asisreported3.Therei

16、snodoubtthat4.Thereisnodoubtaboutit5.Thereisnoneed6.Ithappenedthat7.Itseemsthat8.Itlooksasif9.It'slikelythat10.It'spossibleforme11. It'snouse(为打翻的牛奶而哭泣).(cry)12. (抱怨是毫无用处的)，theyneverlisten.(use)13. (难怪)you'veachievedsomuchsuccess.(wonder)14. (彳艮明确)mostofthefarmershavebroughtinmoremon

17、eybyallmeans.(certain)15. (据说)theprofessorhasalreadysucceededincarryingoutthisexperiment.(say)16. Theprofessorissaid已成功)incarryingoutthisexperiment.(succeed)(比较句型15)17. (感到遗憾)Ihaven'tbeentotheget-together.(pity)18(使之成为一种惯例)thatIgetupatsixeverydayinthemorning.(rule)19. I(认为有必要)totakeplentyofhotwa

18、tereveryday.(think)20. It'shightimethatwe(采取措施)tostoppollution.(take)11.cryingoverspiltmilk12.It's/Thereisnousecomplaining13.It'snowonderthat14.It'scertainthat15.It'ssaidthat16.tohavesucceeded17.IfeelitapitythatIhavemadeitarule19.thinkit(is)necessary20.took/shouldtakemeasures(要花费

19、她很长时间)torecoverfromtheillness.(take)22. This/ItisthethirdtimethatI23. Itwasthefirsttimethatshe24. Itis/hasbeentwoyears(see)（看那部电影）.（到长城）.（be）（自从他出国）.（go）25.(对你没什么差别)whetherIlikeitornot,becauseyouneverlistentome.(make26. (用不了多久)beforeweknowtheresultoftheexperiment.(be)Measureshavebeentakentosolvethep

20、roblem,but(可能要过段时问)beforethesituationimproves.(som©27. (没关系)theweatherwasbad.(matter)28. (是否要紧)whetherwegotogetherorseparately?(matter)29. (我突然想起)thathemighthaveforgottenourdate.(occur)21.Itwilltakeheralongtime22.haveseenthefilm23.hadbeentotheGreatwall24.sincehewentabroad25.Itmakesnodifferencetoyou26.Itwon'tbelong27.itmaybesometime28.Itdidn'tmatterthat29.Doesitmatter30. Itoccurredtome31. (可能性不大)hewillchangehismind.(chance)3