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GrammarandusageNounclausesintroducedbyquestionwordsEmptysubjectitUnit2课件描述：本课件为Grammarandusage的辅助教学软件，教学设计通过讲解、练习帮助学生掌握疑问词引导的名词性从句和emptyit的用法。NounClausesSubjectObjectPredicativeAppositiveClauses1.YouknowthatIamateacherofEnglish.2.ThatIamateacherofEnglishisknowntoyouall.3.ItisknowntoyouallthatIamateacherofEnglish.4.ThefactthatIamateacherofEnglishisknowntoyouall.5.Iamworriedaboutwhetheryoucandowellintheexam.6.WhatIamworriedaboutiswhetheryoucandowellintheexam.thatIamateacherofEnglishThatIamateacherofEnglishthatIamateacherofEnglishwhetheryoucandowellintheexam.OCSCSCPCACthatIamateacherofEnglishwhetheryoucandowellintheexam.OCFindtheclausesandtellthefunctionofthem:SCWhatIamworriedaboutConjunctionsofNounClauses:连接词连接代词连接副词what,whatever,who,whoever,whom,whose,whichthat,whether,if,asif(asthough)when,where,how,why状语主语、宾语NounClausesIntroducedbyQuestionWordsWhatwashedoing?Hisfatherwassurprised.subjectclause主语从句Whathewasdoingsurprisedhisfather.What’syourfirstimpressionofhim?Iwanttoknow.objectclause宾语从句Iwanttoknowwhatyourfirstimpressionofhimis.HowcanImakeagrammarlessoninteresting?Thatismyquestion.predicativeclause表语从句MyquestionishowIcanmakeagrammarlessoninteresting.HowdidPeterrespondtothatquestion?Ihavenoidea.appositiveclause同位语从句IhavenoideahowPeterrespondedtothatquestion.1.Wechangethewordorderinaclauseafteraquestionwordintothatofastatement.2.Wecannotleaveoutthequestionwordsinnounclausesinanycases.AttentionCheckwhetherthesentencesaretrueorfalse:他是怎么成功的仍然是个谜。Howwashesuccessfulisstillapuzzle.()Howhewassuccessfulisstillapuzzle.()你能告诉我他住在什么地方吗？Couldyoutellmewhatwasthematterwithme.()Couldyoutellmewhatthematterwaswithme.()FTTF1.Ihavenoidea_________hecomesfrom.2.________hegotthemoneyisstilluncertain.3.Hegaveusmanysuggestions________weshouldgetupearlierandtakemoreexercise.4.Ihavenodoubt________hewillwin.5.Ihavesomedoubt________hewillwin.6.Thethingthattroublesmeis______toheadforEurope.Fillintheblanksusing“that/whether/where/how/when”whereHowthatthatwhetherwhen1.It’sabook.(指代)2.It’soverteno’clock.(时间)3.It’srainingoutside.(天气)4.It’salongwaytothemuseum.(距离)Reviewthefunctionof“it”1.Wecanuseitasanemptysubject.A.whenweuseanounclauseasthesubjectofasentence.a.(preferable)ItiscertainthatwewouldnotbeabletounderstandOldEnglishtoday.=(correct)ThatwewouldnotbeabletounderstandOldEnglishtodayiscertain.Emptysubject“it”:b.(preferable)ItiseasytoanswerwhetherEnglishwillcontinuechanginginthefuture.=(correct)WhetherEnglishwillcontinuechanginginthefutureiseasytoanswer.c.(preferable)Itdependsonthestyleofwritingwhenweusecertainwords.=(correct)Whenweusecertainwordsdependsonthestyleofwriting.a.(preferable)Itishardtomasteraforeignlanguage.=(correct)Tomasteraforeignlanguageishard.b.(preferable)Itisimportanttoknowhowtouseacomputer.=(correct)Toknowhowtouseacomputerisimportant.B.whenthesubjectisato-infinitive.C.whenthesubjectisav-ingform.a.(preferable)Smokingisdifficulttostop.=(correct)Itisdifficulttostopsmoking.b.(preferable)TravellingtoBeijingtakesupalotofmytime.=(correct)IttakesalotofmytimetravellingtoBeijing.Weusuallyusetheemptysubjectitwithaclauseorto-infinitive(preferable),butwiththev-ingformweprefertherealsubjectatthebeginning.Tip2.Itcanalsobeusedbeforeseem,appear,happen,chance,turnoutandproveastheemptysubjectofasentence.a.Itseemsthathespeakstwolanguages.=Heseemstospeaktwolanguages.b.Ithappensthatmynewneighbourcomesfrommyhometown.=Mynewneighborhappenstocomefrommyhometown.I.同位语从句和定语从句的区别:1.定语从句是先行词的修饰语，它不涉及先行词的具体内容。定语从句中that不但起连接作用，而且在定语从句中充当一个句子成分，充当从句的宾语成分时可省略。2.同位语从句对中心词的内容作进一步的解释和说明，表明中心词的具体内容。引导同位语从句的that在同位语从句中不做任何成分,只起连接作用,无具体含义,且不可省略.Otherimportantcasesofnounclauses:1.Weexpressedthehopethattheyhadexpressed.2.WeexpressedthehopethattheywouldcometoChinaagain.1.Theinformationhasbeenannouncedthatmoremiddleschoolgraduateswillbeadmittedintouniversity.2.Theinformationthatherevealedatthemeetingisofgreatvalue.AttributiveorAppositiveATAPAPATII.疑问词+ever和nomatter+疑问词的区别：①疑问词+ever可引导名词性从句，在主从句中要充当一定的部分。Whoeverbreakstherulemustbepunished.Youcanchoosewhateveryoulikeintheshop.②疑问词+ever还可引导让步状语从句。如：Whoeverbreakstherule,hemustbepunished,Whateveryoudo,youmustdoitwell.③nomatter+疑问词只能引导让步状语从句。Nomatterwhatyoudo,youmustdoitwell.Nomatterwhobreakstherule,hemustbepunished.1.Someoneisringingthedoorbell.Goandsee____.A.whoisheB.whoheisC.whoisitD.whoitis2.Thephotographswillshowyou____．A.whatdoesourvillagelooklikeB.whatourvillagelookslikeC.howdoesourvillagelooklikeD.howourvillagelookslikeDB高考链接3.Whatthedoctorsreallydoubtis_____mymotherwillrecoverfromtheseriousdiseasesoon.A.whenB.ifC.whetherD.why4.Greatchangeshavetakenplaceinthatschool.Itisnolonger______itwas20yearsago,_____itwassopoorlyequipped.A.what;whenB.that;whichC.what;whichD.which;that5.______leavestheroomlastoughttoturnoffthelights.A.AnyoneB.ThepersonC.WhoeverD.WhoCAC6.Iwassurprisedbyherwords,whichmademerecognize___sillymistakesIhadmade.A.whatB.thatC.howD.which7.Parentsaretaughttounderstand______importanteducationistotheirchildren’sfuture.A.thatB.howC.suchD.soAB8.Scientiststhinkthatthecontinents_____alwayswherethey_____to