GrammarGrammar主语从句（NounClausesastheSubject）Whowillgoisimportantforme.Whichisthebestisnotclear.Whydinosaursdiedoutisunknown.Wherewewillgettogetherhasnotbeendecided.Howshecankeephealthyisasecret.Whetherhewillcomeisnotveryimportant.一主语从句的连接词1.Ifshewillcomeisnotimportant.Whethershewillcomeisnotimportant.2.Ifshewillhaveenoughtimeisaquestion.Whethershewillhaveenoughtimeisaquestion3.Ifhewillhandinhishomeworkisaquestions.Whetherhewillhandinhishomeworkisaquestions.3wh-疑问词包含意思，并在从句中充当成分。填空练习：1)_________themeetingwillbeheldnextweekhasn’tbeendecidedyet.2)_________theplanwillbecarriedoutisstillunknown.3)_________thebuildingofthecarfactorywillbestartedhasn’tbeendecidedyet.4)_________teamwillwinthematchisstillunknown.5)_________weneedismoretime.6)_________wecanarriveattheairportbefore8o’clockisstillaquestion.1.Wherewillthemeetingbeheldisnotdecided.Wherethemeetingwillbeheldisnotdecided.2.Whenwilltheworkbefinishedisunknown.Whentheworkwillbefinishedisunknown.3.Whatwillhedoaftergraduationisaquestion.Whathewilldoaftergraduationisaquestion._____doshoppingdependsontheweather.A.WhenwillweB.WhenwewillC.WhatwillweD.Whatwewill1)_____yousaidyesterdayisright.2)_____sheisstillaliveisaconsolation（安慰）.3)_____helostthebikeworriedhimalot.4)_____causedtheaccidentremainsunknown.5)_____mademattersworsewas____nightbegantofall.6)_____wecan’tgetseemsbetterthan______wehave.二.it做形式主语为了防止句子头重脚轻，通常把形式主语it放在主语位置，真正主语搁置于句末。2）It+不及物动词(seem,happen,matter)+主语从句1.Thisisnaturalthattheyshouldlikeeachother.2.Itistruehehasmadeaveryimportantdiscoveryinchemistry.3.Itdoesn’tmatterthatheiswrongornot.4.ItisknowtoallthatLuXunisafamousauthor.Whateverhesaysisofnoimportance.1.____makesthisshopdifferentisthatitoffersmorepersonalservices.AWhatBWhoCWhateverDWhoeverThesewildflowersaresospecialthatIwoulddo____Icantosavethem.AwhateverBthatCwhichDwhichever3____intheregulationsthatyoushouldnottellpeoplethepassportofyoure-mailaccount.AWhatitrequiredBWhatrequiresCItisrequiredDItre