特殊句式-It用法看过来

1、It用法看过来it是中性的第三人称单数代词，其主格和宾格形式相同，在句中可充当主语、宾语和表语。还可做形式主语和宾语，来替代不定式、动词的ing和从句。人称代词it的用法：.It一般指人以外的一切生物或事物。有时也指婴儿、小孩或不知性别的人。-Whereisyourcar?你的车呢？-Itsinthegarage.在车库里。Look!Itsgoingupthattree.瞧！它正往树上爬呢。Herbabyisduenextmonth.Shehopesitwillbeaboy.她的孩子该下个月出生。她希望会是个男孩。Someoneisringing.Whomightitbe?有人在按门铃，会是谁

2、呢？.指已知或正在发生的事实或情况。Yes,IwasathomeonSunday.Whataboutit?是的，我星期天就在家，怎么了？Stopit.Youarehurtingme.住手。你弄疼我了。IfIcanhelpit,Idontlikeworkinglatotethinenight.(06全国卷)如果能行的话，我就不会熬到深夜了。.指上下文内容ProfessorLeegaveusalectureyesterday.Itwasofgreatinterest.ProfessorLeegaveusalectureyesterday,whichwasofgreatinterest.昨天李教授给

3、我们做了一个报告，很有趣。YangLiweiwasthefirstChinesetobesentupintospace.ItmadetheChineseproud.YangLiweiwasthefirstChinesetobesentupintospace,whichmadetheChineseproud.杨利伟是第一个被送入太空的中国人，这使得中国人非常自豪。SherunsthestoreverywellandIknowit.Sherunsthestoreverywell,whichIknow.她把这家商店经营的很好，这我清楚。非人称代词it的用法。it用作无人称的主语，不指物，而表示天气、

4、季节、时间或事物的状态。.指时间Itsearlyspring,butitsalreadyveryhot.虽然是初春，但已经很热了。Whattimeisitbyyourwatch?你表上几点了？.-Whatstheweatherliketoday?-Itsverycoldtoday.指距离Itsabout15minuteswalkfromheretothebar.从这儿到酒吧步行需15分钟。Howfarisitfromyourcompanytoyourhome?从你家到公司有多远？当指示代词用1）用以明确身份Itsyourmotheronthephone.是你母亲来的电话。Hello,Peter

5、,itsMikehere.喂，彼得，我是迈克。Hi,itsme.嗨，是我。2）指代this、thatThisisyourplan,isntit?-Whatsthis?-Itsabook.it当作形式代词的用法：1）.it当作形式主语的用法在英语当中，常用it来替代做主语的不定式、ing和从句，以保持句子的平衡。A.替代不定式Ittookmethreehourstofinishthework.完成这项工作花了我三个小时的时间。Itskindofyoutohelpme.你能帮我真是太好了。ItshardforustolearnEnglish.对我们来说学英语有点难。注意：Itsadjfor/ofs

6、btodosth.中for和of的确定一般是由前面的形容词来定的。即前面的形容词是表示人的性格、品质等特征的词，用of；其他情况下用for。B.替代ingItsnousecryingoverspiltmilk.覆水难收。Itsnogooddoingit.做这件事没有好处。Itswellworthreadingthebook.这本书很值得一读。Itsgreatfunclimbingmountainsonrainydays.雨天爬山真有趣。注意：ing一般都是亲自做主语，在下列句式中才用it做形式主语。Itsnogood/use/wellworthdoingsth.Itsnotanygood/us

7、edoingsth.Itsfundoingsth.C.替代从句Itsafactthatthepopulationisstillincreasing.人口仍在增长是个事实。Itscertainthattheywillcomeheretoseeus.他们要来看我们这是一定的。Itssaidthatheisgoingabroadwithhisparents.据说他要随他的父母去国外。Itseemsthatitisgoingtorain.天看起来好像要下雨了。常用it代替从句的句式有：Itsadj/nthat-clause.Itssaid/believed/known/reported/suppose

8、d/orderedthat-clause.据说/认为/知/报道/认为/命令.Itseems/appearsthat-clause.看起来好像.Itturnsoutthat-clause.结果是Ithappensthat-clause.碰巧Itoccurstosbthat-clause.Itflasheson/uponsbthat-clause.某人想到Itstrikessbthat-clause.使某人觉得it用作形式宾语find/make/feel/consider/think+it+adj/n+todo/ving/that-clause.IfinditdifficulttolearnEng

9、lish.我发现学英语很难。Ithinkitnogooddoingtoomanythingsforchildren.我认为过多的包揽孩子的没有好处。Wemakeitarulethateveryoneshallcometoschoolbefore7:30.我们把每个人在7：30之前到校作为一项规章制度。like/dislike/prefer/hate/love/appreciate+it+when/if-clause.Idontlikeitwhenpeoplespeakwiththeirmouthsfull.我不喜欢人们嘴里含得满满的说话。Wewouldappreciateitifyoucanc

10、omehere.如果你能来这我们讲非常感激。it的其他句式Its+时间段+since-clause.时态主句：一般现在时或现在完成时从句：一般过去时ItstenyearssinceIworkedinNo.2MiddleSchool.ItsseveralyearssinceGaoXiumindied.Its+时间段+before-clause.时态主句：一般将来时从句：一般现在时主句：一般过去时从句：一般过去时Itwillbeseveralyearsbeforemysongotocollege.Itwasntlongbeforehetoldmethenews.Its+时间点+when-claus

11、e.意义：当做的时候是几点钟。Itsaboutnoonwhenwearrivedatthefootofthemountain.当我们到达山脚下的时候时间大约是正午。ItsOctober1st,1949whenthePeoplesRepublicofChinawasfounded.中华人民共和国是在1949年十月一日成立的。Its+时间点+before-clause.意义：做之前是几点钟。Itseveningbeforewegottothevillage.我们还没到村子之前就已经是傍晚了。Its+被强调的部分+that/who-clause.被强调的部分：除谓语之外的其他部分对谓语动词的强调动词

12、原形意为“的确”。注意：被强调的部分为人时，that、who都可用，其他均要用that。ItsIthat/whosawhiminthestreetyesterday.Itshimthat/whoIsawinthestreetyesterday.ItsinthestreetthatIsawhimyesterday.ItsyesterdaythatIsawhiminthestreet.Itsnotuntilallthefishdiedintheriverthatthevillagersbegantorealizehowseriousthepollution.试比较一下句子：Itsaboutnoon

13、whenwearrivedatthefootofthemountain.Itsataboutnoonthatwearrivedatthefootofthemountain.ItsOctober1st,1949whenthePeoplesRepublicofChinawasfounded.ItsonOctober1st,1949thatthePeoplesRepublicofChinawasfounded.E.Itshigh/abouttimethat-clause.该是做某事的时候了。注意：从句中常用动词的过去式来表虚拟语气。Itstimethatwehadarestnow.该是我们休息的时候

14、了。Its/Thisisthefirsttimethat-clause.这是某人首次做某事。从句中用现在完成时态。ItsthefirsttimethatIhavecomehere.这是我首次来这儿。GiItsbeyondmewhy-ause为什么使某人无法理解Itsconvenientfor/tosb(todosth).对于某人来说方便做某事。Itsnowonderthat-clause.难怪实地演练.feltfunnywatchingmyselfonTV.(2007全国卷II)A.ItB.OneC.ThisD.That-Thereisstillacopyofthebookinthelibra

15、ry.Willyougoandborrow?-No,Iwouldratherbuyinthebookstore.A.it;oneB.one;itC.one;oneD.it;it（2007陕西）Hegothisfirstbookpublished.Itturnedouttobeabestseller.Whenwas_?_wasin2000whenhewasstillincollege.that;ThisB.this;ItC.it;ThisD.that;It（07浙江）Haveyouheardthelatestnews?-No,what?A.isitB.isthereC.aretheyD.aret

16、hose（07全国卷I）Itwasafterhegotwhathehaddesiredherealizeditwasnotsoimportant.（06辽宁）A.thatB.WhenC.sinceD.asisourbeliefthatimprovementsinhealthcarewillleadtoastronger,moreprosperouseconomy.（06浙江）A.AsB.ThatC.ThisD.ItItsburninghottoday,isntit?-Yes,yesterday.（06福建）A.SowasitB.SoitwasC.SoitisD.SoisitAsthebusie

17、stwomaninNorton,shemadeherdutytolookafteralltheotherpeoplesaffairsinthattown.（06湖南）A.thisB.thatC.oneD.it-Youknowwhocameyesterday?-YaoMing?Wehadabasketballmatch.-.Hecameandwatchedit.（06湖北）A.Youguessedit!B.Howdidyouknowthat?C.Welldone!D.Thatwasgoodnews.Idappreciateifyouwouldliketoteachmehowtousethecom

18、puter.（06山东）A.thatB.itC.thisD.youIjustwonderthatmakeshimsoexcited.（06山东）A.whyitdoesB.whathedoesC.howitisD.whatitisItsquitemewhysuchthingshavebeenallowedtohappen.（06安徽）A.forB.behindC.againstD.beyondIthasbeenrainingforawholeweek.Ithinkitllgetfinesoon.-.Wearegettingintotherainyseasonnow.（06安徽）A.Yes,itw

19、ill.B.Ofcoursenot.C.ItspossibleD.Itshardtosay._isknowntousallisthatthe2008OlympicGameswilltakeplaceinBeijing.（08福建）A.ItB.WhatC.AsD.WhichGatheringboughtapostcardoftheplaceshewasvisiting,addressing_toandthenposteditatthenearbypostoffice.（06安徽）A.it;herB.it;herselfC.herself;herD.herself;herselfThechairm

20、anthought_necessarytoinviteProfessorSmithtospeakatthemeeting.A.thatB.itC.thisD.him（05全国I、II）ThedoctoradvisedVerastronglythatsheshouldtakeaholiday,but_didnthelp.A.itB.sheC.whichD.he（05全国卷III）intheregulationsthatyoushouldnottellotherpeoplethepasswordofyoure-mailaccount.（05上海）A.WhatisrequiredB.Whatrequ

21、iresC.ItsrequiredD.ItrequiresIfitisquitetoyou,IwillvisityounextTuesday.（05天津）A.convenientB.fairC.easyD.comfortableIpreferaflatinInvernesstoinPerth,becauseIwanttolivenearmyMoms.A.oneB.thatC.itD.this（05天津）Wevebeenlookingathousesbuthaventfoundwelikeyet.A.oneB.onesC.itD.them（05浙江）Carsdocauseussomehealth

22、problems,infactfarmoreseriousthanmobilephonesdo.（05江西）A.oneB.onesC.itD.those-Doyoulike_here?-Oh,yes.Theair,theweather,thewayoflife.Everythingisdonice.（04全国卷II）A.thisB.theseC.thatD.itTheforeignMinistersaid,“ourhopethatthetwosideswillworktowardspeace.”A.ThisisB.ThereisC.ThatisD.Itis（04北京）Itwaswithgreatjoy_hereceivedthenewsthathislostdaughte