主语从句和表语从句.ppt

主语从句和表语从句连词that（不可省略）,whether；连接代词who,whom,whose,whoever,what，whatever和which；连接副词when,where,how和why。注意：主语从句2)由连词that引起的主语从句：Thattheyarebadlyinneedofhelpisquiteclear.他们急需帮助，这是十分明显的。但是这类句子在大多数情况下会放到整个句子的后部去，而用代词it作形式主语。3)由连接代词或连接副词以及whether引起的主语从句。Whethertheywillsellthehouseisnotyetdecided.他们是否卖掉这所房子还没有决定。4)whatever,whoever也可引导主语从句。Whateverwassaidheremustbekeptsecret.这里说的话都应当保密。Whoevermakesmistakesmustcorrectthem.凡犯了错误的人都必须改正。注意:有时为了使句子结构平衡,避免“头重脚轻”,常用it作形式主语,而把从句放在后面。例如:Itisapitythatshehasmadesuchamistake.她犯了这样一个错误,真是遗憾。这样就构成了下面一些常用句型:1)Itis+adj./n.+从句Itisapity/shamethat...遗憾的是……Itispossiblethat...很可能……Itisunlikelythat...不可能……2)It+不及物动词+从句Itseems/appearsthat...似乎……Ithappenedthat...碰巧……3)It+be+过去分词+从句Itissaidthat...据说……Itisknowntoallthat...众所周知……Itisreportedthat...据报道……Itisbelievedthat...据信……;人们相信……Itissuggestedthat...有人建议……1._____youdon’tlikehimisnoneofmybusiness.2._____hesaidatthemeetingastonishedeverybodypresent.3.________the2000OlympicGameswillbeheldinBeijingisnotknownyet.4.________we’llgocampingtomorrowdependsontheweather.5.________leavestheroomlastoughttoturnoffthelights.1.AfterYangLiweisucceededincirclingtheearth,___ourastronautsdesiretodoiswalkinspace.A.whereB.whatC.thatD.how2.___the2000OlympicGameswillbeheldinBeijingisnotknownyet.A.WheneverB.IfC.WhetherD.That4.___leavestheroomlastoughttoturnoffthelight.[高考真题]A.AnyoneB.ThepersonC.WhoeverD.Who表语从句表语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）Thepersonstoodinfrontofyoujustnowismyheadmaster.刚才站在你前面的那个人是我的校长。Ididn’tknowthatitwasyouatthattime.当时我不知道那是你。Thedoorremainedclosed.门仍然关着。Mary’sdailyjobiscleaningthehouse.玛丽的日常工作就是打扫这间房子。Ⅱ.Position(位置)表语常位于系动词（be等词）之后，与主语共同构成主--系--表结构(Subject-Predicativestructure)的句子。Ⅲ.LinkingVerbs(连系动词)除动词be以外，还有一些后面可接表语的特殊连系动词，如：look,smell,taste,sound,feel,fall,come,go（变成…）,become,grow（渐渐地变化）,turn(变成，一般用于颜色),appear,seem,get,keep,remain,stay等。Ⅳ.Notes1.上面提到的动词，不总是用作连系动词。2.代词充当表语时，通常用代词的宾格形式。3.选择时，区分该用动词过去分词、动词-ing形式还是动词的不定式充当表语：主语是动作的