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.carefulperson.2012高考英语语法总复习精品课件SummaryTheuseof“it”foremphasis可被强调的部分除谓语之外的句子各成分。基本句子结构Itis/was＋被强调部分＋that/who/whom+句子的遗留部分备注it既可强调现在的情况，也可强调过去的情况。WecalledonProfessorWanginhisofficethismorning.weProfessorWangEg:Itwaswewho/thatcalledonProfessorWangathisofficethismorning.ItwasProfessorWangwhom/that/whowecalledonathisofficethismorning.WecalledonProfessorWanginhisofficethismorning.inhisofficethismorningItwasinhisofficethatwecalledonProfessorWangthismorning.ItwasthismorningthatwecalledonProfessorWanginhisoffice.1.ItisonthisarablelandthatthefarmersproducefoodforthewholepopulationofChina.2.Itwasfromtheearly1990sthatscientistsstartedtodevelopnewtechniquestoincreaseagriculturalproductionwithoutharmingtheenvironment.怎样判断强调句?---若是强调句，去掉'Itbe…that’还应是一个完整的句子。若不是强调句,去掉'Itis…that'已不是一个完整的句子。Eg:ItistenyearsMissGreenreturnedtoCanada.A.thatB.whenC.sinceD.asPracticeRewritethesesentences,emphasisingtheunderlinedparts.EXAMPLE:ThefarmersproducethefoodforthewholepopulationofChinaonthisarableland.ItisonthisarablelandthatthefarmersproducethefoodforthewholepopulationofChina1.Thechildrenoftenhelptheirparentsdothefarmwork.Itisthechildrenwhooftenhelptheirparentsdothefarmwork.2.In1993,atomatowasdevelopedthatwasverydifferentfromanygrownbefore.Itwasin1993thatatomatowasdevelopedthatwasverydifferentfromanygrownbefore.3.ThebiggestproblemofChinafarmersistheshortageofarableland.ItistheshortageofarablelandthatisthebiggestproblemforChinesefarmers.4.Theplantsgrowningreenhousesareprotectedfromthewind,rainandinsects.Itistheplantsgrowninthegreenhousesthatareprotectedfromthewind,,rainandinsects.5.Futureagricultureshoulddependonhightechnologyaswellastraditionalmethods.ItishightechnologyaswellastraditionalmethodsthatfutureagricultureshoulddependonRewritethesentencesbelow,emphasisingasmanypartsaspossible.EXAMPLE:JiaSixiewroteabookcalledQiminYaoshuduringtheyears533-544.ItwasJiaSixiewhowroteabookcalledQiminYaoshuduringtheyears533-544.ItwasabookcalledQiminYaoshuthatJiaSixiewroteduringtheyears533-544.Itwasduringtheyears533-544thatJiaSixiewroteabookcalledQiminYaoshu.1.ItwasHenrywhogaveGeorgeanewtieforhisbirthdaylastyear.ItwastoGeorgethatHenrygaveanewtieforhisbirthdaylastyear.ItwasanewtiethatHenrygaveGeorgeforhisbirthdaylastyear.ItwaslastyearthatHenrygaveGeorgeanewtieforhisbirthdaylastyear.2.Itwasduringthatperiodoftimethattheymaketheseimportantdiscoveries.Itwastheseimportantdiscoveriesthattheymakeduringthatperiodoftime.Itwastheywhomakethereimportantdiscoveriesduringthatperiodoftime.3.ItisinSouthAmericathatsomepeoplestillpractisethiskindoffarming.ItissomepeopleinSouthAmericawhostillpractisethiskindoffarming.ItisthiskindoffarmingthatsomepeopleinSouthAmericastillpractise.Practice:1.Wedidn’tbeginourlessonuntil/tillourteachercamein.Itwasnotuntilourteachercameinthatwebeganourlesson.Thevillagersdidn’trealizehowseriousthepollutionwasuntilallthefishintheriverdied.____________allthefishintheriverdied___thevillagers_______howseriousthepollutionwas.Itwasnotuntilthatrealized“It”试题解析1.TheParkersboughtanewhousebut_____willneedalotofworkbeforetheycanmovein.A.theyB.itC.oneD.which“It”试题解析2.Tom’smotherkepttellinghimthatheshouldworkharder,but____didn’thelp.A.heB.whichC.sheD.it“It”试题解析3.Theweatherturnedouttobeverygood,___wasmorethanwecouldexpect.A.whatB.whichC.thatD.it4.Doyouhaveenoughglassesforeachguesttohave_________?A.itB.themC.thatD.one“It”试题解析5.Whydon’twetakealittlebreak?Didn’twejusthave__________?A.itB.thatC.oneD.this“It”试题解析6.-Hewasnearlydrownedonce.-Whenwas_________?-____wasin1998whenhewasinmiddleschool.A.that;ItB.this;ThisC.this;ItD.that;this7.Itwasnotuntil1920______regularradiobroadcastsbegan.A.whileB.whichC.thatD.since“It”试题解析7.Itwasnotuntil1920______regularradiobroadcastsbegan.A.whileB.whichC.thatD.sinceRegularradiobroadcastsdidn’tbeginuntil1920.“It”试题解析8.Coulditbeintherestaurantin_____youhaddinnerwithmeyesterday_________youleftbehindyourkeysandwallet?A.that,whichB.which,thatC.where,thatD.that,where“It”试题解析Itcouldbeintherestaurantin_______youhaddinnerwithmeyesterday_____youleftbehindyourkeysandwallet?“It”试题解析therestaurant(in_______youhaddinnerwithmeyesterday)whichintherestaurantwhichItcouldbeintherestaurantin_______youhaddinnerwithmeyesterday_________youleftbehindyourkeysandwallet?高考试题解析therestaurant(in_______youhaddinnerwithmeyesterday)whichintherestaurantthat8.Coulditbeintherestaurantin_____youhaddinnerwithmeyesterday_____youleftbehindyourkeysandwallet?A.that,whichB.which,thatC.where,thatD.that,where“It”试题解析Itwasforthisreason_____herunclemovedoutofNewYorkandsettleddowninasmallvillage.A.whichB.whyC.thatD.howThankyouforattending!