It的用法(超全)

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---------------------------------------------------------------最新资料推荐------------------------------------------------------1/13It的用法(超全)用法及其句型和固定搭配,是英语语法的重点、难点,又是近几年考试的热点,因此在复习中应给予足够的重视。句型归纳:1.Itis+adj.(+forsb./sth.)+todosth.用于此句型的形容词有:easy,hard,difficult,possible,important,impossible,necessary,good,bad,exciting,interesting,surprising等。如:Itisnecessarytochangeyourjob.Itwasveryhardforthemtowalksuchalongwayinthesnow.2.Itis+n.(+forsb./sth.)+todosth.用于此句型的名词有:pity,shame,pleasure,onesduty,onesjob,fun,joy,goodmanners,badmanners等。如:Itisapityforyoutohavemissedsuchawonderfulplay.Itisbadmannersfortheyoungtotakeuptheseatsfortheold.3.Itis+adj.+ofsb.+todosth.此句型中的形容词主要描述某人的品德、特征。能用于该句型的形容词有:kind,nice,wise,silly,polite,impolite,friendly,foolish,clever等。如:Howsillyitwasofyoutogiveupsuchagoodchance!Itisfriendlyofthefamilytotrytomakemefeelathomeintheirhouse.4.Itis+adj.(+n.)+doingsth.此句型中的形容词和名词常见的有:no/littleuse,no/muchgood,useless等。如:Itsnousecryingoverspiltmilk.不要为打翻牛奶而哭泣。5.Ittakessb.+一段时间+todosth.表示做某事花费某人多长时间。如:Ittookushalfanhourtoridetothetownbythesea.6.Itis+及物动词的过去分词+that从句此句型中常见的及物动词的过去分词有:said,told,known,reported,recorded,thought,believed,considered等。如:ItisreportedthattheRussianPresidentwillvisitChinanextweek.7.It+不及物动词+that从句此句型中不及物动---------------------------------------------------------------最新资料推荐------------------------------------------------------3/13词常见的有:seem,happen,appear,matter等。如:Itseemsthattherewillbeaheavysnowtomorrow.IthappenedthatImetmygoodfriendsinthemuseumyesterday.碰巧我昨天在博物馆遇见了我的好朋友。8.强调句型:Itis+被强调部分+that/who从句在使用强调句型时要注意,指人时可以用who或that,其它情况一律用that。如:Itwasunderthebedthatmybrotherhidtheballthismorning.ItisMrBellwho/thatoftencomesandlooksaftertheoldman.9.Itis/hasbeen+一段时间+since从句。如:Itis/hasbeenthreeyearssincewesaweachotherlast.10.Itis(high)timethatsb.didsth.该句型表示某人现在该做某事了,从句常用过去时(虚拟语气)说明现在应该做的事情。如:Itssixoclock.Itishightimethatwewenthomenow.It常用的固定搭配:1.makeit(1)在口语当中相当于succeed,表示:成功、做到、说定、赶上、及时到达例It’shardtomakeittothetopinshowbusiness.(2)在口语中相当于fixthedatefor,表示约定好时间例Shallwemeetnextweek?OK.WejustmakeitnextSaturday.2.asitis(1)相当于infact,inreality表示事实上,实际情况是例Wehadplanedtofinishthetasktoday,butasitisweprobablywon’tfinishituntilnextweek.(2)相当于方式状语从句,表示照原样例Leavethetableasitis.3.asitwere相当于asonemightsay,thatistosay,表示也就是说,可以说,换句话说例Heis,asitwere,amodernSherlockHolmes.4.ifitweren’tfor/ifithadn’tbeenfor用来引导虚拟语气,相当于without,orbutfor,表示如果不是,要不是例Ifitweren’tforTom,Iwouldn’tbealivetoday.5.that’sit(1)相当于That’sall.That’ssomuch.表示至此为止,没有别的了例Youcanhaveonemoresweet,andthat’sit.(2)相当于That’sright.表示对啦例IguessthekeytotheproblemisthechoiceAThat’sit.6.catchit在口语中,相当于bepunished/scoldedfordoingsth.wrong.表示因做错事而挨骂,受责备,受批评,受惩罚例We’llreallycatchitformourteacherifwe’relateforclassagain.7.haveit(1)相当于say,insist表示说,主张,表明,硬说例Rumourhasitthattheyaregettingdivorced.(2)相当于get---------------------------------------------------------------最新资料推荐------------------------------------------------------5/13toknowsomething,表示了解,知道,获悉例IhaditfromJohnthatshewasgoingabroad.8.havewhatittakes在口语中,相当于bewellqualifiedfor,表示具有成功的条件例Youcantakeitfrommethatyourdaughterhaswhatittakestobeastar.9.soitseems/appears.10.Keepatit!(Don’tgiveup!)相当于goon,表示继续做,不放弃例Myteacheraskedmetokeepatit.11.Goit!(Goon!)拼命干,莽撞12.Nowyouhavedoneit!(Youhavedonesth.wrong.)13.Nowyou’llcatchit!(You’llbepunished.)14.Asithappened,在口语中,相当于it’sapitythat,表示真不凑巧,真遗憾例Asithappened,theywereout.15.Asitturnedout,在口语中,相当于itwasfoundtobeintheend,表示最后被证明是例Asitturnedout,hisstatementwasfalse.16.Suchasitis(theyare)在口语中,相当于althoughitmaynotbeworthmuch,表示虽然没有多大价值例Youcanborrowmyexamnotebook,suchasitis.17.Takeit/thingseasy.相当于Don’tworryordon’thurry.用来劝告别人,表示不要慌,别担心,存住气例Takeiteasy!Hewilldoitwell.18.Takeitfromme.在口语中,相当于believemewhatIsay.表示请相信我的话,我敢担保例Youcantakeitfrommethathewillmakeitthistime.19.Forwhatitisworth在口语中,相当于althoughI’mnotsureit’sofvalue,表示不管其价值如何例HereisthearticleIpromiseyou,forwhatit’sworth.20.Worthit在口语中,相当于useful,表示有好处,值得做例Don’thesitateaboutit!It’sworthit.21.Believeitornot.表示信不信由你例Believeitornot,TomisgettingmarriedtoMarynextSunday.22.Takeitorleaveit.v.要么接受要么放弃例Thatismylastoffer.Youcantakeitorleaveit.23.Italldepends/thatalldepends在口语中,相当于ithasn’tbeendecidedyet,表示那得看情况,还没有定下来例Areyougoingtothecountrysideforholiday?It/Thatalldepends.24.It’suptosb.在口语中,相当于it’sdecidedbysb.表示由决定,由负责,取决于例Shallwegooutfordinner?用法小结:It用作实词表达以下概念:指代前文提到的事物,前文中的this,that;替代前文中的内容;指代一位性别不明的小孩或未知的人;指代未指明但谈话双方都知道的那件事;指代时间、天气、气候、距离等自然现象。一、it作人称代词的用法1.指事物作为人称代词,it可以除人以外的一切事物或动物。如:Idroppedmywatchanditbroke.我把手表掉在地上摔坏了。Itshardwork,butIenjoyit.工作很辛苦,可是我乐意干。Whereisthedog?Itsinthebedroom.狗在哪?在卧室里。---------------------------------------------------------------最新资料推荐------------------------------------------------------7/132.指人it指人主要用于指不性别不明的婴儿或用于确认某人的身份。如:Isitaboyoragirl?是男孩还是女孩?Thereisaknockonthedoor.Itmustbethepostman.有人在敲门,一定是邮递员。【说明】在答语中,常用来指本人,如说Itsme。3.代替某些代词代词it还可用于代替指示代词this,that以及复合不定代词something,anything,nothing等。如:Whatsthis?Itsanewmachine.这是什么?是一种新机器。Nothingiswrong,isit?没出什么问题,是吗二、it作非人称代词的用法1.基本用法it作非人称代词的用法,主要用于指时间、距离、价值、天气、气候及温度等自然现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