高中表语从句

名词性从句（二）表语从句例句：Wehavelosthisaddress.Thetroubleisit.Thetroubleisthatwehavelosthisaddress.主语连系动词表语表语从句表语从句•表语从句：在主句中用作表语的从句。•表语从句分类由that引导(不能省略）由关系代词、关系副词引导由whether引导（是否）表语从句:由引导的表语从句1.Thebabyrefusedtoeatanyfood.Thetroubleisit.Thetroubleisthatthebabyrefusedtoeatanyfood.2.Wearetoobusy.Thereasonisit.Thereasonisthatwearetoobusy.3.Nooneintheclassspeakstohim.Theproblemisit.Theproblemisthatnooneintheclassspeakstohim.4.Thepoorwomancan’taffordthefood.Thetroubleisit.Thetroubleisthatthepoorwomancan’taffordthefood.that表语从句:由引导的表语从句5.Weshouldgotobedearlyandgetupearly.Myadviceisit.Myadviceisthatweshouldgotobedearlyandgetupearly.6.Iwillbecomealawyer.Mydreamisit.MydreamisthatIwillbecomealawyer.7.Iremembertwentynewwordseveryday.Myplanisit.MyplanisthatIremembertwentynewwordseveryday.that关系代词、关系副词引导表语从句关系代词：whowhomwhosewhichwhatwhoeverwhateverwhichever等关系副词：whenwherewhyhow等例句Howshouldtheydoit?Theproblemisit.Theproblemishowtheyshoulddoit.引导表语从句把两句话合并成一句话1.Whoisreadytocleanthewindowsinsuchacoldday.Theproblemisit.Theproblemiswhoisreadytocleanthewindowsinsuchacoldday.2.Wheredoesthemanagerlive?Theproblemisit.Theproblemiswherethemanagerlives.3.Howmanystudentswanttoeatout?Thetroubleisit.Thetroubleishowmanystudentswanttoeatout.关系代词、关系副词引导表语从句4.Whatwillmymotherbuyasherdaughter’sbirthdaypresent?Heranxiety（焦虑）isit.Heranxietyiswhatmymotherbuyasherdaughter’sbirthdaypresent.5.Whyishealwayslateforschool?Myquestionisit.Myquestioniswhyheisalwayslateforschool.6.Whenwilltheyleave?Theproblemisit.Theproblemiswhentheywillleave.关系代词、关系副词关系代词、关系副词引导表语从句7.Howlongdoesittakehimtoarriveattheairport?Theproblemisit.Theproblemishowlongittakeshimtoarriveattheairport.8.Howcanhegettothepostoffice?Thetroubleisit.Thetroubleishowhecangettothepostoffice.9.Wheredidhissonlosethekeys?Theproblemisit.Theproblemiswherehissonlostthekeys.由引导定语从句whether1.Thequestionisit.Couldhepassthefinalexam?Thequestioniswhetherhecouldpassthefinalexam.注意（一）：连系动词be,appear,look,seem等之后可以跟表语从句。e.g.Itwasbecausehedidn’tpasstheexam.Itseemsthathewaslateforthetrain.•注意（二）：seem（似乎）后的表语从句可以用不定式来简化。•Itseemsthathehasmanyfriends.Heseemstohavemanyfriends.Itseemsthatheislateforschoolonceaweek..Heseemstobelateforschool.把下列复合句中的表语从句用不定式替换表示出来1.Itseemsthatitisgoingtorain.Itseemstobegoingtorain.2.ItseemsthatJohnlikespopularmusic.Johnseemstolikepopularmusic.3.ItseemsthatthisforeignerlikesChinesefood.ThisforeignerseemstolikeChinesefood.注意把下列复合句中的表语从句用不定式替换表示出来4.Itseemsthatthisnewcomerdoesn’tlikespeaking.Thisnewcomerseemsnottolikespeaking.5.Itseemsthatthiskindofclothfeelssoft.Thiskindofclothseemstofeelsoft.6.Itseemsthathegoeshomeonfooteveryday.Heseemstogohomeonfooteveryday.