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,Theuseof“it”(I),1.It’sasmallworldafterall.,3.It’safineday,isn’tit?,2.Abirdlandedonthetree.It’ssinging.,4.Whattimeisit?It’sseveno’clock.,5.Thebabyiscrying.Itmightbehungry.,,this/that,I.人稱代詞a.用作人稱代詞，代替前文提到過的事物，以避免重復(fù):b.也可以指動(dòng)物或嬰兒(未知性別的嬰兒或孩子):2.非人稱代詞有時(shí)并不指具體的東西，可指天氣、時(shí)間、距離、環(huán)境等Itwasveryquietinthecaf.Itishalfanhour’swalktothecity.3.指示代詞指代this或thatThisisyourpen,isn’tit?What’sthatonthedesk?Iguessitmightbearobot.,Itisobviousthatgoingforsportswilldoalotofgoodtoyourhealth.,It’sapitythattheChineseteamdoesn’tattendtheWorldCupinSouthAfricathisyear.,4.it作形式主語(yǔ)(PreparatorySubject),代替不定式，動(dòng)名詞或從句所表示的真正主語(yǔ)。,Peoplebelievedthatthemandid’ttellalie.,,It’sbelievedthatthemandid’ttellalie.,Thetwosidesaresaidtohavereachedanagreement.,,,,,,,It’ssaidthatthetwosideshavereachedanagreement.,TheswordhasbeenprovedtodatefromQinDynasty.,,IthasbeenprovedthatthesworddatedfromQinDynasty.,HowearlymanwasabletoconstructStonehengeisamystery.,,It’samysteryhowearlymanwasabletoconstructStonehenge.,it作形式主語(yǔ)的句型常見的有：,,Itisclear(obvious，true，possible，certain....)that,Itissaid(reported，believed....)that...,Itissuggested(ordered/demanded/insisted/commanded...)that...從句用虛擬語(yǔ)氣,Itisapity(shame/duty/fact/honor/nosurprise...)that...,Ithappens(seems，looks，appears)that...,.Itdoesn’tmatter(nowonder…)+wh-/how-clause,Ittakessb....todosth…,Itisnogood(use)doingsth…,Itlooks(seems)asif...,歸納,5.作形式賓語(yǔ)(PreparatorySubject),為了記憶方便我們把該句型總結(jié)為"6123結(jié)構(gòu)"。,6指主句中常用的動(dòng)詞：think,believe,make,find,consider,feel；1指的是形式賓語(yǔ)it；2指的是賓補(bǔ)的兩種形式：形容詞或名詞；3指的是真正賓語(yǔ)的三種形式：不定式短語(yǔ)，動(dòng)名詞短語(yǔ)或從句。,Wethinkitourdutytocleanourclassroomeveryday.HefeltitimportantlearningEnglishwell.Theyfounditdifficultthattheywouldfinishtheirworkintwodays.,ItwaswithastrongbeliefthatMartinLutherkingledmangmovementsagainstracialdiscrimination.,6.用于強(qiáng)調(diào)結(jié)構(gòu)（emphaticstructure）,Itis/was+被強(qiáng)調(diào)部分+that/who...+其他成分,ImetTominthestreetyesterday.,強(qiáng)調(diào)結(jié)構(gòu)的一般疑問句型：Is/was+it+所強(qiáng)調(diào)的部分+that/who…?,,WasityouthatmetTominthestressyesterday?,強(qiáng)調(diào)結(jié)構(gòu)的特殊疑問句型：疑問詞+is/was+it+that/who…?,,Whowasitthatyoumetinthestreetyesterday?,,WherewasitthatyoumetTomyesterday?,,...not…until….句式用于強(qiáng)調(diào)句型要注意否定詞not前移,構(gòu)成：,Itis/wasnotuntil+被強(qiáng)調(diào)部分+that...,Idid’tgotobaduntil10o’clockyesterdayevening.,,Itwasnotuntil10o’clockyesterdayeveningthatIwenttobad.,Ididn’trealizeshewasafamousfilmstaruntilshetookoffherdarkglasses.,,ItwasnotuntilshetookoffherdarkglassesthatIrealizedshewasafamousfilmstar.,,3.Itisnouse(和他們爭(zhēng)論這一問題),youaresimplywastingtime.(argue),6.Hisparentsmanageedto(使…成為可能)forhimtogoabroad.(possible),4.______（不要緊/沒關(guān)系）whetherwegotogetherorseparately.(matter),7.Accordingtothewitnesses,itwasattwoo’clock(該事故發(fā)生).(happen),1.(正在下雨)whentheyleftthestation.(rain),2.(對(duì)他來講很困難)tostudytwolanguages.(difficult),8.(正是在這片耕地上)thatthefarmersproducefoodforthewholepopulationofChina.(arable),10.It(直到他們聯(lián)手)thattheyachievedtheirgoals.(join),9.It(直到1920年)thatregularradiobroadcastsbegan.(until),(普遍認(rèn)為)thatChina’sfastdevelopmentineconomywillbenefitmanycountriesintheworld.(generally,believe),1.Itwasraining2.It’sdifficultforhim3.arguingwiththemaboutthisquestion4.Itdoean’tmatter5.It’sgenerallybelieved6.makeitpossible7.thatthisaccidenthappened8.Itisonthisarableland9.wasnotuntil192010.wasnotuntiltheyjoinedhands,