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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,语法探究,(6),名词性从句,1.,名词性从句试题的设问仍会坚持既注重引导词之间的语法功能差异又注重语意差异的原则,增加试题的综合化程度考查。情景设置将越来越生动真实,但试题的难度不会大幅度提高。,2.,名词性从句与强调句型和定语从句融合起来进行综合考查。既考查了考生基本知识的掌握运用能力,又考查了考生分析句式结构、辨析从句的能力。,wh,词语与,whever,词语的比较考查仍是未来高考命题的热点。,一、主语从句,从句在句中作主语。它可以放在谓语之前,但习惯于用,it,作形式主语,而把主语从句放在后面,引导主语从句的连词有,that,,,whether,,,if,不能引导主语从句。连接代词有,who,,,what,,,which,等,连接副词有,when,,,where,,,how,,,why,等。,二、表语从句,表语从句在句中作表语,位于主句中的系动词之后。引导表语从句的连接词有,that,,,whether,,,as if,;连接代词有,who,,,what,,,which,;连接副词,where,,,why,,,when,,,how,等。,三、宾语从句,宾语从句在句中作及物动词或介词的宾语。引导宾语从句有连接词,that,,,if,,,whether,。,that,可以省略。连接代词,who,,,whose,,,what,,,whoever,,,whatever,,,which,,连接副词,when,,,where,,,how,,,why,等。有时也常用,it,作形式宾语,而把宾语从句放在后面。,四、同位语从句,同位语从句跟在名词后面,进一步说明该名词的具体内容。引导同位语的名词主要有,fact,,,news,,,promise,,,idea,,,truth,,,desire,,,proposal,,,thought,,,suggestion,等。连接词有,that,,,that,在引导同位语从句中一般不能省略。也可用连接副词,how,,,when,,,where,,,why,等。要注意同位语从句与定语从句的区别,引导定语从句的,that,是关系代词,在定语从句中作主语或宾语,作宾语时可以省略。而同位语中的,that,是连接词,仅起连接作用,而不充当任何成分。,注意:,同位语从句与定语从句的区别,同位语从句通常对前面的名词起补充解释作用,二者之间是同位关系;而定语从句用来说明先行词的性质或特征,起修饰或限制作用,二者之间是修饰与被修饰的关系,故属形容词性从句范畴。试比较:,I told him the news that he had passed the English exam.,我告诉了他这个消息,他英语考试及格了。,(,同位语从句,说明,news,的内容,),I told him the news that made him surprised.,我告诉了他那个令他吃惊的消息。,(,定语从句,修饰,news),五、,that,和,what,引导名词性从句的区别,that,和,what,都可以引导主语从句、宾语从句、表语从句和同位语从句,区别在于:,引导名词性从句时,,that,不在从句中担当任何成分,也无具体意思,只起连接作用;,what,则能在从句中作主语、表语、宾语或宾语补足语,,并保持原疑问词的意义或相当于,the,thing(s,),which,,表示“,事情,,东西”,有时作前置定语,如,what,help,,,what,funny,stories,等。,What you have done does not please him.,你所做的事并没有让他满意。,My idea is that we should give him a chance.,我的想法是我们应该给他一次机会。,2.glad,,,sorry,,,afraid,,,happy,,,angry,等形容词后可以直接跟,that,从句,不必跟与其相应的或常搭配的介词;,what,从句位于这些形容词后时,形容词后的相应介词不能省略。,I,m pleased with what they had said.,我对他们所说的话感到非常满意。,He is very angry that some of the students don,t work hard at school.(angry,后不带介词,with),有些学生在校学习不努力,这让他非常生气。,1,把握不准疑问从句和名词性关系从句的区别而误用引导词,英语中部分引导词如,if,和,who,不能用来引导名词性关系从句;带有,ever,的词不能引导疑问从句;而,what,却能引导这两种从句。,如:,He asked me who broke the glass.,此处的,who,不能用,whoever,代替。又如:,Who goes against the law shall be punished.,很显然该句是一个典型的错句,,who,应用,whoever,,相当于,anyone who,。这两种引导词的混淆使用是考生极易出现的错误,也是考生把握的难点,因此把握从句的句式结构,透彻理解引导词的含义和用法是避免类似错误的有效途径。,2,把握不准,where,,,when,等引导名词性从句与引导其他从句的用法区别,很多考生对,where,引导地点状语从句、定语从句与其引导的表语从句相混淆,在考题中分不清该如何运用。,The famous scientist grew up_he was born and in 1930 he came to Shanghai.,A,when,B,whenever,C,where D,wherever,此处应用,where,引导地点状语从句。,He got himself into a dangerous situation_he is likely to lose control over the plane.,A,where B,which,C,while D,why,此处应填,where,,引导定语从句,修饰,situation,。但在下面这道高考题中,,where,则引导表语从句。,Go and get your coat.It,s_you left it.,A,there B,where,C,there where D,where there,此题很多考生误选,C,项,以为,where,引导的是定语从句。在定语从句中,there,一般不能作先行词,故,C,项为错误选项。,要避免此类错误,首先应从意思上区别,where,的用法:在引导地点状语从句时,,where,意为“到,的地方,在,的地方”,引导表语从句时,意为“,的地方,,之处”,引导定语从句时,意为“在这里,在此处”,其次应从句子结构及所作句子成分中区别其用法。,3,把握不准名词性从句的句式结构而误选引导词或语序,有时命题人为增加试题的难度和干扰性,在句中故意添加倒装结构、疑问结构或增减一些关键词,使考生在解答类似题目时,对句式结构把握不准,误选答案。,When do you think_visit her uncle?,A,she was going to B,she will go to,C,will she go to D,she,ll go,该题为宾语从句中含有插入语,故其答案应按宾语从句的答案而定,答案为,B,。,Is_you told me really true?,A,what B,which,C,that D,when,该题为疑问结构,其陈述结构应为:,_you told me is really true.,主语从句中缺少主语,答案应为,A,。认真分析句子结构,把握句子的复杂构成,可避免掉进命题人设下的陷阱中。,强化训练,点击进入链接,
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