定语从句之关系代词教案_定语从句之关系代词

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要考试，找戴氏

戴氏教育乐山分校

主讲教师：徐海燕

定语从句

在复合句中，修饰某一名词或代词，或修饰整个主句的从句叫做定语从句，它的作用相当于形容词。被定语从句修饰的名词或代词叫做先行词。引导定语从句的关系代词有：who, whom, whose, which, that, as 和关系副词when, where, why.关系代词和关系副词 既联系定语从句和它的先行词，同时又充当定语从句的一个成分。（主语、宾语、介词宾语、定语、状语或表语）

1、关系代词的用法 1）、who，whom 指人，在定语从句中做主语或宾语，作宾语时可以省略。The man who were pretending to sleep asked him to come here.Where is the man who was here? People who find animals asleep often think that they are dead.Where is the man whom I saw this morning.The fellow whom I spoke to made no answer first.My sister married the man she was engaged to.※ 介词后只能用whom 不能用who.Eg : The woman whom / who you spoke to is a model worker.The woman to whom you spoke is a model worker.2)、whose 是所有格，在定语从句中作定语

John was so delighted that he wanted to find someone whose face had been shown.He mentioned a book whose author I can’t remember now.3）、which 指物，在定语从句中作主语或宾语，可以与that互换，作宾语时可以省略。

This is the book which I bought（that）yesterday.Read in light which is not too bright and not too dark.4）、关系代词that 指人又指物，在定语从句中可作主语和宾语，还可以作表语，,作宾语或表语时可以被省略

I used to work sometimes for the family that lived here.Some soldiers picked some flowers that grew there and placed them on the boy’s body.Some people seem to think that sports and games are unimportant things that people do when they are not working.He is not the man that he used to be.※ 介词后边不能加that The house in which we live is not large.The house which we live in is not large.The house that we live in is not large.The house we live in is not large.★ 只能用that 的情况

1、先行词为all, , everything , nothing , something, anything , little , much等不定代词时

Only a scientist could understand all that this pursuit meant.I am sure she has nothing that you can borrow.Everything that we saw was of great interest to us.There is little that the enemy can do to save this house that is on fire.2、先行词被all, every, no, some, any, little, much,修饰时

I’ve read all the books that you gave me.2、先行词被序数词或形容词的最高级修饰时

This is the first composition that he was writing in English.The smallest living things that can be seen under a microscope are dangerous.This is the best novel that I have ever read.3、先行词被the only, the same, the last修饰时

That white flower is the only one that I really like.This is the only book that I want to find.The last plane that we visited was the bets one.4、先行词即有人也有物时

He talks about the teachers and the schools that he had visited.5、先行词是who或which 引导的特殊疑问句时

Who is the person that is standing at the gate?

6、先行词为who, which 时，定语从句用that 引导。5）、as

A、用于the same… as, such…as , as…as , so…as.结构中。As 引导的定语从句常采用省略式。

Eg: He is of about the same age（as you）.What is learned in books cannot have the same deep effect on a child’s character as what is learned by experience.Let children read such books as will make them better and wiser.Here is so big a stone as no man can lift.B、as 引导的定语从句可以指代整个主句的内容，有逗号与主句隔开

As we have seen, oceans cover more than 70% percent of the earth.As is known to all , Taiwan is a part of china.小结as 引导的定语从句的句型：

As has been said before 如上所述

As may be imagined 正如可以想象出来的那样

As is well known 众所周知

As was expected 正如所预料的那样

As has been already pointed out 正如已经指出的那样

As we all can see 正如我们都能看到的那样