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1、表语从句Ⅰ.Definition（定义）表语是用来说明主语的身份、性质、品性、特征和状态的，表语常由名词、代词、数词、动词过去分词、动词的-ing形式、副词、介词短语、形容词、不定式和从句等来充当。Eg.（例子）Thepersonstoodinfrontofyoujustnowis________.刚才站在你前面的那个人是我的校长。(名词充当表语)*Ididn’tknowthatitwas____atthattime.当时我不知道那是你。(代词充当表语)Thedoorremained____.门仍然关着。(动词过去分词充当表语)Mary’sdailyjobis___________
2、_.玛丽的日常工作就是打扫这间房子。(动词-ing形式充当表语)Thehouseis________large________beautiful.这所房子不仅大而且漂亮。（形容词）WhenIwenttoyourhouse,youwere____.当我到你家的时候，你不在家。(副词充表语)Noonewas____________,whenshearrived.当她到达时，宿舍里没人。(介词短语)Myjobis________________.我的工作是教你们英语。(不定式充当表语)*Thereasonwhyhecamelatewasthat________________.他迟到的原
3、因是他的闹钟坏了。(从句充当表语)（注：*双从句）2.表语从句的构成主语+系动词+引导词+简单句Thisiswhyhedidit.WhatIwanttosayisthatIamtired表语从句放在连系动词之后，充当复合句中的表语。可以接表语从句的系动词有：1:be（being,been,am,is,are,was,were)2:feel,seem,look,appear,sound,taste,smell3:stand,lie,remain,keep,stay4:become,get,grow,turn,go,come,run,fall5:prove,turnout连接词：tha
4、t/whether/asif/asthough(if不引导表语从句)连接代词：who/whom/whose/which/what连接副词：when/where/why/how/because表语从句1.that1)that在从句中不担任句子成分，无实际意义，一般不能省略2)在表“建议，劝说，命令”的名词idea,suggestion,request,proposal等后面的表从句中，谓语动词用“should+动词原形”，should可省略Myopinionisthatit’sgettingbetterandbetter.Mysuggesstionisthatwe(should)st
5、artearlytomorrow.2.whether在表语从句中表“是否”,但不充当句子的成分。if“不能”引导表语从句。如:Whatthedoctorreallydoubtsiswhethermymotherwillrecoverfromtheseriousdiseasesoon.Thequestioniswhetheritisworthdoing.3.asif,asthough引导的表语从句1)asif/though引导的表语从句常置于连系动词look,seem,sound,be,become等后面，常用虚拟语气，表示不存在的动作或状态。e.g.Itsoundsasif/tho
6、ughsomebodywasknockingatthedoor.2)主语+连系动词（look/seem/appear……）+that/asif从句*asif/asthough引导的表语从句如果是事实，就用陈述语气；如果与事实不符，就用虚拟语气(主句一般现在时,从句就用过去式，be的话变成were。主句是过去式，从句用过去完成时)。Itlooksasifhewereherownfather.(与事实不符)Darkcloudsaregathering.Itlooksasifit’sgoingtorain.As/asif、asthoughThesituationisnot____itse
7、emstobe.形势并不像外表所看到的那样。Shelooks________sheisworriedaboutherleader’sdisease.她看上去很担忧她领导的病情。Itwas________heweremad.他好像疯了似的。4.becausebecause引导表语从句通常只用于“This/That/Itisbecause…”结构中。Myangerisbecauseyouhaven’twrittentomeforalongtime.你为什么不来出席座谈会？
