(陕西)(龙门亮剑)2011高三英语一轮课件 语法探究(4)外研版.ppt
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1、语法探究(4)定语从句,1.定语从句是贯穿整个高中阶段语法学习的重点,是高考测试必考的热点,尤其是非限制性定语从句更是命题的重中之重,其关系词as与which的用法区别仍是未来命题的核心。,2定语从句与强调句型、同位语从句融合在一起进行考查。这样既考查句式结构的辨析能力,又能考查关系词与其他连接词的区分运用能力。3介词关系代词结构的准确选择和运用。4形式上仍以单项填空、短文改错为主,完形填空、阅读理解中的长句理解为辅,对定语从句进行综合运用考查。,关系词选择是高考考查的重点。做好定语从句有关试题,必须牢记三要点:首先分析从句是否为定语从句,而这在很大程度上取决于整句的逻辑含义。,(2)分析定语
2、从句的成分,看从句是否缺主语、宾语或状语等,因为引导(关系)词在定语从句中是必须充当一定成分的(或主语、或宾语、或状语)。(3)观察先行词的特点:指人或是指物;既指人又指物;是否被某些特殊词所限定、修饰,句子结构是否特别。,一、that引导的定语从句先行词是指物或人的名词或不定代词。先行词是指人的名词时,若that在从句中作宾语,可用whom替换,也可以省略;若that在从句中作主语,可用who替换;先行词是指事物的名词时,若that在从句中作宾语,可用which替换。,以下情况,引导词用that,不用which。1先行词为不定代词everything,little,much,all,anyt
3、hing,nothing或被不定代词修饰时。Finally,the thief handed everything that he had stolen.2先行词前有形容词最高级、序数词修饰时,用that引导。This is the best book(that)Ive ever read.,3先行词被the only,the very,the last修饰时,用that引导。This is the only book that I want to read now.4先行词同时指人和指物时,用that引导。We talked about the things and persons that
4、 we saw then.,5定语从句内容为解释名词的性质、概念时,需用that引导。A plane is a machine that can fly.6由which和who提问的句子由that引导。Which is the dictionary that you want to buy?,二、关系代词which的用法先行词必须是指物或事的名词。若which在从句中作主语,从句谓语动词在人称和数上应与先行词保持一致;若which在从句中作及物动词的宾语时,可以省略,但用于介词后面,作介词宾语时,不能省略;“介词which”引导定语从句时,选用介词应根据介词和先行词的习惯搭配或从句中谓语动词和
5、介词所构成的固定词组,介词既可置于which的前面,又可放在从句谓语后面。,1The games in which the young men competed were difficult.2Youd better not drink water which has not been boiled.which除在介词后面作宾语或引导非限制性定语从句不能用关系代词that替换外,其他情况均可用that来替换。which引导非限定性定语从句,其先行词可是一个词,也可是整个主句或主句的某一部分。,三、who引导的定语从句先行词必须是指人的名词。who在从句中通常作主语,从句的谓语应与先行词在人称和
6、数上保持一致,口语中可用that代替who;有时who在从句中也可作宾语,相当于whom或that,但不能直接在介词后面作宾语。,四、whom引导的定语从句先行词是指人的名词。whom在从句中作及物动词或介词的宾语,在口语中可用who或that替换,也可以省略,但“介词whom”引导定语从句时,不能用who或that替换,也不能省略,介词依据从句中的谓语动词而定。,五、介词关系代词1“ofwhich/whom”可用来限定名词、代词、分数词、数词等。2关系代词前介词的确定。(1)根据从句中动词与先行词的逻辑关系。Is that the newspaper for which you often
7、write articles?(2)根据从句中动词或形容词的习惯搭配。Can you explain to me how to use these idioms about which Im sure?,(3)根据先行词与介词的搭配习惯。1949 was the year in which the PR.C.was founded.(4)非限制性定语从句中,要表示先行词的一部分时,可用“数词/代词of关系代词”的结构。There are 50 students in our class,two thirds of whom have been to Beijing.,(5)whose从句可转换
8、为“of关系代词”型。They live in a house,whose door opens to the south.They lived in a house,of which the door opens to the south.They lived in a house,the door of which open to the south.,六、关系副词的运用在限定性和非限定性从句中,when的先行词是时间名词,where的先行词是地点名词,分别在定语从句中作状语。,七、as与which引导的定语从句两者均可引导非限制性定语从句,先行词都可指整个句子,都可在从句中作主、表、宾语
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