高考英语语法复习 it的用法课件 新人教版.ppt

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 人称代词a 用作人称代词 代替前文提到过的事物 以避免重复 b 也可以指动物或婴儿 未知性别的婴儿或孩子 2 非人称代词有时并不指具体的东西 可指天气 时间 距离 环境等Itwasveryquietinthecaf Itishalfanhour swalktothecity 3 指示代词指代this或thatThisisyourpen isn tit What sthatonthedesk Iguessitmightbearobot Itisobviousthatgoingforsportswilldoalotofgoodtoyourhealth It sapitythattheChineseteamdoesn tattendtheWorldCupinSouthAfricathisyear 4 it作形式主语 PreparatorySubject 代替不定式 动名词或从句所表示的真正主语 Peoplebelievedthatthemandid ttellalie It sbelievedthatthemandid ttellalie Thetwosidesaresaidtohavereachedanagreement It ssaidthatthetwosideshavereachedanagreement TheswordhasbeenprovedtodatefromQinDynasty IthasbeenprovedthatthesworddatedfromQinDynasty HowearlymanwasabletoconstructStonehengeisamystery It samysteryhowearlymanwasabletoconstructStonehenge it作形式主语的句型常见的有 Itisclear obvious true possible certain that Itissaid reported believed that Itissuggested ordered demanded insisted commanded that 从句用虚拟语气 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 归纳 5 作形式宾语 PreparatorySubject 为了记忆方便我们把该句型总结为 6123结构 6指主句中常用的动词 think believe make find consider feel 1指的是形式宾语it 2指的是宾补的两种形式 形容词或名词 3指的是真正宾语的三种形式 不定式短语 动名词短语或从句 Wethinkitourdutytocleanourclassroomeveryday HefeltitimportantlearningEnglishwell Theyfounditdifficultthattheywouldfinishtheirworkintwodays ItwaswithastrongbeliefthatMartinLutherkingledmangmovementsagainstracialdiscrimination 6 用于强调结构 emphaticstructure Itis was 被强调部分 that who 其他成分 ImetTominthestreetyesterday 强调结构的一般疑问句型 Is was it 所强调的部分 that who WasityouthatmetTominthestressyesterday 强调结构的特殊疑问句型 疑问词 is was it that who Whowasitthatyoumetinthestreetyesterday WherewasitthatyoumetTomyesterday not until 句式用于强调句型要注意否定词not前移 构成 Itis wasnotuntil 被强调部分 that Idid tgotobaduntil10o clockyesterdayevening Itwasnotuntil10o clockyesterdayeveningthatIwenttobad Ididn trealizeshewasafamousfilmstaruntilshetookoffherdarkglasses ItwasnotuntilshetookoffherdarkglassesthatIrealizedshewasafamousfilmstar 3 Itisnouse 和他们争论这一问题 youaresimplywastingtime argue 6 Hisparentsmanageedto 使 成为可能 forhimtogoabroad possible 4 不要紧 没关系 whetherwegotogetherorseparately matter 7 Accordingtothewitnesses itwasattwoo clock 该事故发生 happen 1 正在下雨 whentheyleftthestation rain 2 对他来讲很困难 tostudytwolanguages difficult 8 正是在这片耕地上 thatthefarmersproducefoodforthewholepopulationofChina arable 10 It 直到他们联手 thattheyachievedtheirgoals join 9 It 直到1920年 thatregularradiobroadcastsbegan until 普遍认为 thatChina sfastdevelopmentineconomywillbenefitmanycountriesintheworld generally believe 1 Itwasraining2 It sdifficultforhim3 arguingwiththemaboutthisquestion4 Itdoean tmatter5 It sgenerallybelieved6 makeitpossible7 thatthisaccidenthappened8 Itisonthisarableland9 wasnotuntil192010 wasnotuntiltheyjoinedhands