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1、定语从句中的特殊用法定语从句是起定语作用的，修饰，说明名词，代词或句子内容的从句，被定语从句修饰的词叫做先 行词。引导定语从句，并在句中担任成分的词叫做关系代词或关系副词。定语从句是高考常 考内容之一，使用时要尤其注意以下十种特殊用法。一、只用that不用which的情况1、当先行词是 all, little, few, much, something, everything, anything, nothing, none等不定代词时。如：Everythi ng that happe ned then was like a nightmare.时发生的一切就像是一场噩梦。I will tel
2、l him all that you told me at the ball.我要把你在舞会上跟我说的话全都告诉他。2、 当先行词被only, any, few, little, no, all, just, very （恰好的，表示强调）等词修饰时。例如: The on ly thi ng that we could do was to wait 我们能做的只是等待。That the very thing that we can do那正是我们能做的事。3、当先行词是序数词、形容词最高级或先行词被序数词或形容词最高级修饰时。例如：The first place that we visited
3、 was the Great Wall我 们参观的第一个地方是长城。This is the best no vel that I have ever rea这是我看过的最好的小说。4、被修饰词为数词时。例如：Yesterday I caught two fish and put them in a basin of water. Now you can see the two that are still alive.昨天我捉到了两条鱼，把它们放在一盆水里。你可以看到那两条鱼还活着呢。5、 主句是There be结构，修饰其主语的定语从句宜用that作关系代词修饰物。例句：There stil
4、l a room that is free.还有一个空房间。6、先行词中同时包括人和物时。例如：We talked about the people and the villages that we remembere我 们谈论了我们记得的人和村 子。He asked about the factories and workers that he had visite他问起他去过的这几家工厂和工人 的情况。7、 当主句中有who, which时，而定语从句中也要用到who或 which时，为了避免whowho, whichwhich等重叠，定语从句要用 that引导。例如：Who is the
5、 man that is sta ndi ng by the door站在门边的那个男人是谁？Which of the two cows that you keep produces more milk?你养的那两头奶牛中哪一个产奶多？ 8人或物在定语从句中表语时，用that引导定语从句，而that通常也可以省略。例如： He is no Ion ger the man that he wa他不再是过去的他。二、修饰物时只用which不用that的情况1、引导非限制性定语从句时。例如：Bamboo is hollow, which makes it light.竹子是空心的，这使得他很轻。2、
6、当关系词前有介词时。例如：This is the room in which Chairman Mao once lived 这就是毛主席曾经住过的地方。3、 在一个句子中有两个定语从句，其中一个定语从句的关系代词用了that,另一个宜用which。 例如：Let me show you the no vel that I borrowed from the library which was n ewly ope n to us.我来给你看我从新开的图书馆里借来的那本小说。4、当关系代词后面有插入语时。例如：Here is the En glish grammar which, as I h
7、ave told you, will help improve your En glish.这就是我跟你说过的会有助于你学好英语的那本英语语法书。5、先行词为that时。例如：The clock is that which can tell us the time 钟是报时的装置。三、修饰人时只用who不用that的情况1、先行词为 one, ones, anyone, thos指代人时。如： The pers on I want to lear n from is one who studieshard and works well我最羡慕的是学习勤奋，工作出色的人。2、 在There be
8、结构中，修饰主语的定语从句宜用who关系代词指代人。例如：There a gentleman who wants to see yo有位先生想见你。3、当先行词有较长的后置定语时。例如：I met a foreig ner in the park yesterday after noon who could speak Chin ese very we 昨天下午我在 公园里遇到一位中文讲得非常好的外国人。4、 一个句子中带有两个定语从句，其中一个定语从句的关系代词是that,另一个宜用 who以避免重复。The student that was praised ay esterday meet
9、ing is the monitor who is very modest and works ve ry hard.受到校长表扬的学生是位谦虚好学的班长。注意：当关系代词前面有介词时，只能用who m。例如：The pers on to whom this letter was addressed died three years ago封 信的收信人三年前就去世了。四、way在定语从句作先行词的用法当先行词为way时，定语从句的引导词可用in which, that或省略引导词。例如：I don like the way ( that /in which)he looks at me.我不
10、喜欢他那种样子看着我。五、 在定语从句中作状语的关系副词 when, where, why的用法1、 先行词表示时间时，定语从句中的谓语动词如果是不及物动词，用关系副词when或介词+ which;如果是及物动词，用 which或that都行。例如：I still remember the days when (=on which)we lived together.我仍然记得我们在一起的时光。2、 先行词表示地点时，如果定语从句中谓语动词是不及物动词，用关系副词where或介词 +which;如果是及物动词时，用 which或that都可以。例如：This is the small vill
11、age where (=i n which) Chairma n Mao ever lived.这就是毛主席曾经居住过 的小村庄。3、表示原因时，why前的先行词是表示原因的名词reason例如：Can you tell me the reason why (=for which) youdidn finish your homework?你 能告诉 我你没 有完成作业的原因吗？六、whose引导的定语从句Whose引导定语从句时，其先行词可以指人，也可以指物，当先行词指物时，可以用the+名词+of which的结构。例如：He studies in a school whose build
12、ings(=the buildings of which) are built on top of a hill.他就读的学校其房子都建在山顶上。七、as作关系代词引导的定语从句1、 引导限制性定语从句。在主句中常有the same, so或 such与as相呼应，as在定语从句中可 作主语、宾语、主语补足语等。as引出的定语从句带有比较意义，从句常常只写出比较部分， 但as本身不可省略。例如：He used such expressio ns as he could find in the text他使用在课文中可以找到的那些词语。 They stayed for the ni ght in
13、 the same room as they had once rentefd 们在他们曾租用过的同一房间 过夜。注意：在the same后也可用that引导定语从句，但含义有所不同。that引出的从句，指的是 与先行词同一的事物，而as引导的从句指的是与先行词同类的事物。例如：This is the same bag as I lost yesterda这个包和我昨天丢失的包的样子是同样的。This is the same bag that I lost yesterda这就是我昨天丢失的那个包。2、 引导非限制性定语从句。带主句的全部或部分内容。常译为正如”就像-”等，定语从句可以置于主句
14、句首、句中或句末。as后常接expect, know, report, say, see等动词的主、被动语态。例如：As is known to everybody, the moon travels round the earth once every mon tH. 女口大家所知道的 那样，月球每月绕着地球转一圈。He wasn unconscious, as could be judged from his eye他并未失去知觉，这从他的眼神可以看 出来。注意：as, which引导非限制性定语从句的区别：1) 、都可以代整个主句，相当于 and this或and that.2) 、as
15、可放在句首，而 which不能。3) 、as代表前面的整个主句并在从句中作主语时，从句中的谓语必须是系动词；如果为行为动词，则从句中的关系代词只能用which.例如：It rained hard yesterday, which prevented me from going to the par昨天下大雨，这使得我不能去 公园。八、of短语作为定语从句的先行词的情况one of the + 复数名词这一结构后面的定语从句中的谓语动词，通常用复数形式，与定语从句 所靠近的那个复数名词在数上保持一致。但如果one of the+复数名词这一结构前面带有the/only/the only之类的限定语，从句的谓语动词则要用单数形式，此时从句在意义上修饰的 是the one.例如：Tom is one of the boys who were late that morning 汤姆是那天早晨迟至 U的男生之一。Tom is the (only/the on ly )one of the boys who was late that morni ng汤姆是那天早上唯一迟至 U的 男生。九、that有时可用作关系副词来代替when,引导一个定语从句，修饰表示时间的名词，如day, time, moment等。例如：I arrived
