表语从句

ThePredicativeClause表语从句一、表语从句定义：Thequestioniswhowilldoit.表语从句放在连系动词之后，充当复合句中的表语。表语从句连系动词有：be（am,is,are,was,were）,look,seem,sound,taste,appear等Thestorysoundstrue.Heappearstoknowthis.例句：Theseorangestastegood.观察思考：指出句子成分HenrywasanAmericanbusinessman.HenrymetanAmericanbusinessman.主语表语主语谓语宾语（及物动词）连系动词二、表语从句构成Hissuggestionisthatweshouldstaycalm.Thatiswhyshewaslate.引导词引导词（系动词）+引导词+简单句三、引导表语从句的关联词1.从属连词as,asif/though引导的表语从句Helookedjustashehadlookedtenyearsbefore.Itsoundsasifsomeoneisknockingatthedoor.他看起来还与十年前一样。听起来好像有人在敲门。2.because,why引导的表语从句例句：(1)That’sbecausehedidn’tunderstandme.(2)That’swhyhegotangrywithme.那是因为他不理解我。那正是他对我生气的原因。(强调原因）（强调结果）3.连接代词who,whom,whose,whoever,what,whatever,which,whichever,连接副词where,when,how(1)Theproblemiswhowecangettoreplaceher.(2)Thequestionishowhedidit.(3)Thatiswherehewasborn.问题是我们能找到谁去替换她呢。问题是他如何做此事的。那就是他出生的地方。4.从属连词that，whether(1)ThetroubleisthatIhavelostheraddress.(2)Myquestioniswhetherheleft(ornot).麻烦是我把她的地址弄丢了。我的问题是他是否离开了。that在表语从句中不充当任何句子成分，也没有任何意义。四.使用虚拟语气的表语从句在表示建议、劝告、命令含义的名词后的表语从句，谓语动词需用should+动词原形表示，should可省略。常见的词有：advice,suggestion,order,proposal,plan等。Mysuggestionisthatwe(should)startearlytomorrow.例题1：Thequestionis________wewillhaveoursportsmeetnextweek.A.thatB.ifC.whenD.whetherD注意点1：if不能引导表语从句例题2：Thereasonwhyhefailedis________hewastoocareless.A.becauseB.thatC.forD.becauseofB注意点2：主句主语为reason,只能用that引导表语从句，不可用because.注意点3：如果从句是特殊疑问句，用陈述句语序Theproblemis_________totaketheplaceofJohn.A.whocanwegetB.whatwecangetC.whowecangetD.thatwecangetC注意•A•表语从句一定要用陈述语序。•False:Thequestioniswhencanhearriveatthehotel.•Right:Thequestioniswhenhecanarriveatthehotel.•B•不可以用if，而用whether连接表语从句(asif例外）。•引导宾语从句时可以互换if/whether位于介词后要用whether•位于句首时要用whether•引导表语从句，主语从句，同位语从句时要用whether•False:Thequestionisiftheenemyismarchingtowardsus.•Right:Thequestioniswhethertheenemyismarchingtowardsus.•Right:Itlookedasifhehadunderstoodthisquestion.•C•不像宾语从句，在有表语从句的复合句中，主句时态和从句时态可以不一致。•Right:ThequestioniswhowilltravelwithmetoBeijingtomorrow.•Right:Thequestioniswhyhecriedyesterday.•D•that在表语从句中不可以省掉。小结：1.表语从句的构成:引导词+简单句2.引导词:｛连词that,whether,as,asif连接代词who,what,which连接副词when,where,how,why3.3个注意点:①if不引导表语从句②主语为reason时，引导词用that③语序