定语从句引导词的省略
定语从句中是需要引导词的，那么定语从句引导词的省略又是怎么样的呢?下面是小编精心整理的定语从句引导词的省略，希望对你有帮助!
1、在非正式文体中，用于指人的关系代词who whom, that 指代先行词在定语从句中作宾语时通常可以省略;用于指物的关系代词which和that指代先行词在定语从句中作宾语时中也通常省略。例如：
1)The man (whom/who/that) we have just seen is a famous writer.
2)Where is the book (which/that) I bought last week?
2、 关系代词指代先行词在定语从句中作表语时，只用that ，它既可以指人，也可以指物，但时常省略。例如：
1)He is no longer the man that he used to be.
2)This is no longer the dirty place (that) it used to be.
3、以the way为先行词的限制性定语从句，如果先行词way在定语从句中做状语，通常以in which或 that 引导，但在非正式文体中，人们通常省略in which或 that 。例如;
1)The way (in which) he spoke to us was suspicious.
2)I don’t like the way (that) you laugh at her.
4、以place为先行词的限制性定语从句，如果先行词place在定语从句中做状语，通常以where 引导，但在非正式文体中，人们通常省略where。例如：
1)This is the place (where) we met yesterday.
5、以reason为先行词的限制性定语从句，如果先行词reason在定语从句中做状语，通常以why引导，但在非正式文体中，人们通常省略why。例如：
1)That is the real reason(why) he did it.
6、以time,day,week,month,year等为先行词的限制性定语从句，如果先行词在定语从句中做状语，通常以when引导，但在在某些句型和某些时间状语中，人们通常省略when。例如：
1)But help never stopped coming from the day she fell ill.
2)Each time he came, he did his best to help us.
注：针对以上情况，下列情形定语从句的引导词不能省。
1、如果作介词宾语且介词提前，这时关系代词指人用whom,指物用which，而且均不能省。例如：
1)Gun control is a subject about which Americans have argued for a long time.
2) She brought with her three friends,none of whom I had ever met before.
2)在非限制性定语从句中，无论是关系代词还是关系副词均不能省。例如：
1) They have won their last three matches, which I find a bit surprising actually
定语从句引导词的用法
关系代词有that，which，who，whom，whose，as等；
一：关系代词的用法 关系代词 指代对象及在从句中所作的成分
使用要点
that
即指人又指物；作主语或宾语（作宾语时可省略）
只用于限制性定语从句中，介词后面不能跟that。 当代替物时，可以与which通用。
Yesterday Emily was wearing the new dress that I gave her．
昨天艾米丽穿了我送给她的新衣服。
I have a friend that likes listening to classical music我有个朋友喜欢听古典音乐。
which
指物；作主语或宾语（作宾语时可省略）
在非限定性定语从句中，只宜用which,不能用that.在限定性定语从句中，可用在介词之后。
My parents live in a house which is more than 100 years old
我的父母住在一座具有100多年历史的房子里
who,whom
指人；作主语或宾语（whom常可省略） 先行词必须为人。Who可代替在从句中担任宾语的whom,若前有介词，须用whom
A couch potato is a person who spends a lot of time watching TV． “A couch potato”指那种成天沉湎于电视中的人。
The student(whom)I taught two years ago has joined the army．
我两年前教的那个学生已经参军了。
whose 既指人又指物；作定语 是代词的所有格， 代物时，相当于of which。
The room whose window faces south is mine． 那个窗户朝南的房间是我的。
注意：whose指物时，常用of which结构来代替。如：
The classroom whose door is broken will soon be repaired．
The classroom the door of which is broken will soon be repaired．
定语从句引导词的'判断
方法一： 用关系代词，还是关系副词完全取决于从句中的谓语动词。及物动词后面无宾语，就必须要 求用关系代词。例如：
（错） This is the mountain village where I visited last year.
（错） I will never forget the days when I spent in the countryside.
（对） This is the mountain village (which) I visited last year.
（对） I'll never forget the days (which) I spent in the countryside.
习惯上总把表地点或时间的名词与关系副词 where, when联系在一起。此两题错在关系词的误用上。
方法二： 准确判断先行词在定语从句中的成分(主、谓、宾、定、状)，也能正确选择出关系代词/关系 副词.先行词在从句中作主、定、宾语时，应选择关系代词；先行词在从句中作状语时，应选 择关系副词。
例如：（对）Is this the museum which you visited a few days ago?
（对）Is this the museum where the exhibition was held?
关系代词引导的定语从句
关系代词所代替的先行词是人或物的名词或代词，并在句中充当主语、宾语、定语等成分。关系代词在定语 从句中作主语时，从句谓语动词的人称和数要和先行词保持一致。
1）who, whom,that
这些词代替的先行词是人的名词或代词，在从句中所起作用如下：
Is he the man who/that wants to see you?
他就是想见你的人吗？（who/that在从句中作主语） He is the man whom/ that I saw yesterday.
他就是我昨天见的那个人。（whom/that在从句中作宾语）
2) Whose 用来指人或物，(只用作定语, 若指物，它还可以同of which互换）, 例如：
They rushed over to help the man whose car had broken down. 那人车坏了，大家都跑过去帮忙。
Please pass me the book whose (of which) cover is green. 请递给我那本绿皮的书。
3）which, that
它们所代替的先行词是事物的名词或代词，在从句中可作主语、宾语等，例如：
A prosperitywhich / thathad never been seen before appears in the countryside. 农村出现了前所未 有的繁荣。（which / that在句中作主语）
The packagewhich / thatyou are carrying is about to come unwrapped. 你拿的包快散了。(which / that 在句中作宾语）
关系副词引导的定语从句
关系副词可代替的先行词是时间、地点或理由的名词，在从句中作状语。
1）when, where, why
关系副词when, where, why的含义相当于"介词+ which"结构，因此常常和"介词+ which"结构交替使用，例 如：
There are occasions when (on which) one must yield. 任何人都有不得不屈服的时候。
Beijing is the place where (in which) I was born.北京是我的出生地。
Is this the reason why (for which) he refused our offer? 这就是他拒绝我们帮助他的理由吗？
2）that代替关系副词
that可以用于表示时间、地点、方式、理由的名词后取代when, where, why和"介词+ which"引导的定语从 句，在非正式文体中that常被省略（正式文体中不可省略），例如：
His father died the year (that / when / in which) he was born. 他父亲在他出生那年逝世了。
He is unlikely to find the place (that / where / in which) he lived forty years ago. 他不大可能找到他四十 年前居住过的地方。
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