it习题精选

强调句、It的用法（一）强调句句型1、陈述句的强调句型：Itis/was+被强调部分（通常是主语、宾语或状语）+that/who（当强调主语且主语指人）+其它部分。e.g.ItwasyesterdaythathemetLiPing.2、一般疑问句的强调句型：同上，只是把is/was提到it前面。e.g.WasityesterdaythathemetLiPing?3、特殊疑问句的强调句型：被强调部分（通常是疑问代词或疑问副词）+is/was+it+that/who+其它部分？e.g.Whenandwherewasitthatyouwereborn?4、强调句例句：针对ImetLiMingattherailwaystationyesterday.句子进行强调。强调主语：ItwasIthat(who)metLiMingattherailwaystationyesterday.强调宾语：ItwasLiMingthatImetattherailwaystationyesterday.强调地点状语：ItwasattherailwaystationthatImetLiMingyesterday.强调时间状语：ItwasyesterdaythatImetLiMingattherailwaystation.5、注意：构成强调句的it本身没有词义；强调句中的连接词一般只用that,who，即使在强调时间状语和地点状语时也如此，that,who不可省略；强调句中的时态只用两种，一般现在时和一般过去时。原句谓语动词是一般过去时、过去完成时和过去进行时，用Itwas…，其余的时态用Itis…。（二）not…until…句型的强调句1、句型为：Itis/wasnotuntil+被强调部分+that+其它部分e.g.普通句：Hedidn’tgotobeduntil/tillhiswifecameback.强调句：Itwasnotuntilhiswifecamebackthathewenttobed.2、注意：此句型只用until，不用till。但如果不是强调句型，till,until可通用；因为句型中Itis/wasnot…已经是否定句了，that后面的从句要用肯定句，切勿再用否定句了。（三）谓语动词的强调1、Itis/was…that…结构不能强调谓语，如果需要强调谓语时，用助动词do/does或did。e.g.Dositdown.务必请坐。Hedidwritetoyoulastweek.上周他确实给你写了信。Dobecarefulwhenyoucrossthestreet.过马路时，务必（千万）要小心啊！2、注意：此种强调只用do/does和did，没有别的形式；过去时用did，后面的谓语动词用原形。It的用法（一）作人称代词1、it代替前面（或后面）的单数名词或分句等所表示的事物。e.g.Youcannoteatyourcakebuthaveit.（it代替前面的cake）Althoughwecannotseeit,thereisairallaroundus.（it代替后面的air）Theysayhehaslefttown,butIdon’tbelieveit.（it代替前面They…town分句中的情况）2、代替有生命但不能或不必分阴阳性的东西（包括婴儿）。e.g.Yesterdaywesawabigtree.Itwasfullytwentymetreshigh.（it代替前面的tree）Thebabycriedbecauseitwashungry.（it代替前面的baby）3、在某些习惯说法中，可以代替人。e.g.----Someoneisknockingatthedoor,Peter.----Whoisit?----It’sme.----Whoaresinging?----Itisthechildren.----Thelightisstilloninthelab.Itmustbethethird-yearstudentsdoingtheexperiment.4、it与one的区别：这两个词都可以代表前面说过的名词，但it用于同名同物的场合；one则用于同名异物的场合。e.g.----Doyoustillhavethebicycle?----No,Ihavesoldit.----Isthisknifeyours?----No.ItisXiaoZhang’s.Mineistheoneonthedesk.5、it与that的区别：两词都可代替某一特定名词，但that指同一类，并非同一个。e.g.TheclimateofSouthChinaismild（温和的）;Ilikeitverymuch.（it指theclimateofSouthChina）TheclimateofSouthChinaismuchbetterthanthatofJapan.（that指theclimate）（二）作无人称代词it作无人称代词时，除了句中找不到它所代表的词语外，另一个特点是它后面的内容都是表示天气、时间、距离、度量衡及情况等。Itisfine(rainy,windy,etc.).Itisnoon.Itisahalfhour’swalktothefactory.Itiseighteensquaremetresinarea.Whatdoesitmatter?（三）作强调词，构成强调结构用以帮助改变句子结构，使句子的某一成分受到强调。“Itis(was)+所强调的成分+that(who)+其它成分。”在这个句型中，it本身没有词义。详见“一、强调句”。（四）引导词it作形式主语（宾语）为了使句子平衡，常采用形式主语（或宾语）it，而把真正的主语（或宾语）置于句子后面。通常引导词it与它所代替的句子成分中间要夹有某些词。e.g.Ittakeshalfanhourtogothereonfoot.（It与togothereonfoot之间夹有takeshalfanhour四个词）WethoughtitstrangethatMrSmithdidnotcomelastnight.（it与that从句中间夹有strange）但有时it与所替代部分之间并不夹有其它词。e.g.Youmaydependonitthattheywillsupportyou.（因为介词on之后一般不直接接that引导的宾语从句。注意：it不是多余的，不能当作错句）习题精选---It用法: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可用于某些动词(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’smotherkepttellinghimthatheshouldworkhard,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.Doyoulikehere?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,thenumberofthestudentsinseniorhighschoolisincreasing.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’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考查强调句型.被强调部分是notwhereyoucomefromorwhatyouare(but)theabilitytodothejob.为了平衡结构,部分移至句尾.练习1.Mybikeismissing.Ican’tfind____anywhere.A.oneB.onesC.itD.that2.----Who’sthat?----____ProfessorLi.A.That’sB.It’sC.He’sD.This’s3.____wasJanethatIsawinthelibrarythismorning.A.ItB.HeC.SheD.That4.----Haveyoueverseenawhalealive?----Yes,I’veseen____.A.thatB.itC.suchD.one5.Thecolorofmycoatisdifferentfrom____ofyours.A.this