it和there be的用法

it的用法高考链接体验（2010高考英语辽宁卷，33）Thefactthatshewasforeignmade_____difficultforhertogetajobinthatcountryAsoB.muchC.thatD.it（2010高考英语大纲全国II卷，14）Thedoctorthought____wouldbegoodforyoutohaveaholiday.A.thisB.thatC.oneD.it（09四川）6.Ilikethishousewithabeautifulgardeninfront,butIdon’thaveenoughmoneytobuy__________.A.oneB.itC.thisD.that（09浙江）7．－I’vereadanotherbookthisweek.－Well,maybe_____isnothowmuchyoureadbutwhatyoureadthatcounts.A.thisB.thatC.thereD.it（09北京）2.Beingaparentisnotalwayseasy,andbeingtheparentofachildwithspecialneedsoftencarrieswith___extrastress.A.itB.themC.oneD.him（2006年浙江卷，4）_______isourbeliefthatimprovementsinhealthcarewillleadtoastronger,moreprosperouseconomy.A.AsB.ThatC.ThisD.It（2006年I，26）IfIcanhelp_______,Idon'tlikeworkinglateintothenight.A.soB.thatC.itD.them（2006年安徽卷，34）Catherineboughtapostcardoftheplaceshewasvisiting,addressedtoandthenposteditatthenearbypostoffice．A．it;herB．it;herselfC．herself;herD．herself;herself（2007年全国卷I，7）___feltfunnywatchingmyselfonTV.A.OneB.ThisC.ItD.That（2007年山东卷，24）______worriesmethewayhekeepschanginghismind.A．ThisB．ThatC．WhatD．It考点梳理精讲考点it的用法在英语中，运用it的场合较多。从它在句中的作用和意义来看，it的用法可分为三类：1．指代作用(1)用作人称代词，代替前文或后文所提到的同一事物(单数可数名词或不可数名词)。如：Althoughwecannotseeit，thereisairallaroundus．(2)代替前面的整个句子。如：Itissaidthathehasdiedofadisease，butitisn’ttrue．(3)用在答语中代替指示代词this，that。如：一Whatisthis?这是什么?一It’sabike．(4)代替不能或没有必要区分性别的或某些习惯说法中的人。如：①ThebabycriedbecauseitWashungry．②一Whoisknockingatthedoor?一It’sme．(5)指环境、情形等。如：①Ican’tstanditanylonger．②Takeiteasy．别紧张。③Itdoesn’tmatter．没关系。(6)指度量衡单位、时间、距离、季节、天气及自然现象。如：①It’sgettingcolderandcoldernow．②Itiswinternow．现在是冬天了。2．形式作用(1)形式主语当动词不定式、v.ing形式或从句作主语时，通常把它们放在谓语之后，而用it作句子的形式主语。如：(I)It’snousecryingoverspiltmilk．[谚]覆水难收。②Ittakesthreegenerationstomakeagentleman．[谚]十年树木，百年树人。(2)形式宾语当复合宾语中的宾语是不定式、v-ing形式或宾语从句时，往往把真正的宾语放在补足语后面，而用it作形式宾语，放在宾语补足语之前。如：①Youmustmakeitcleartothemthatthesituationisserious．你必须向他们表明形势是严峻的。②)Theythoughtitdifficulttotalktotheguestsabouttherecentevents．他们觉得和客人们谈近来发生的事情很困难。特别提示形式宾语用在“主语+谓语动词+宾语”结构中，谓语动词appreciate，dislike，hate，like，love，make(按时到达，成功)等后接由if或when等引导的从句时，往往在从句前加形式宾语it。如：①Iwouldappreciateitifyoupaidincash．如果你能支付现金的话，我会不胜感激。②Theboylikesitwhenyoudothat．那个男孩喜欢你那样做。3．强调作用it可以用来改变句子的结构，使句子的某一成分得到强调。强调句型的基本结构为：Itis/was+所强调的成分+that/who/whom+其他成分。要点知识点拨知识要点1、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.2、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）返回目录3、it，one，that的区别：作为代词，这三个词的对比使用是高考的热点之一。---Whydon'twetakealittlebreak?---Didn'twejusthave__________?A．itB．thatC．oneD．thisTheParkersboughtanewhousebut_________willneedalotofworkbeforetheycanmovein．A．theyB．itC．oneD．which常见句型Itwillbe….beforesbdosth.Itwas…beforesbdidsth.Itwas…whensbdidsth.Itis/hasbeen…sincesbdidsth.Itoccurstomethat…Itstrike/hitmethat…Whenitcomesto…Therebe句型Therebe/sit/stand/flow/lie/go/come…Thereseems/happenstobe…Thereisgoingtobe…Thereislikelytobe…Iexpecttheretobe…Iimaginetherebeing…Itisnecessary/naturalfortheretobe…Therebesomebodytodo/doing/done…/that（who）从句Itisnecessarythat…Thereisnoneedtodosth.Itisnousedoingsth.Thereisnouse(in)doingsth.Itisnowonderthat…Thereisnodoubtthat…Thereisnopointindoingsth.Thereisahope/chance/possibilityofdoingsth(thatsbdosth).区别