定语从句中关系词省略的6种情形

中的定语从句的省略规则定语从句是英语语法中常用的一种修饰手段。

通过定语从句的使用，我们可以对名词或代词进行进一步的限定和描述。

在定语从句中，有时可以省略一些成分，以达到简洁的目的。

本文将介绍中的定语从句的省略规则。

1. 主语从句的省略当定语从句的从句主语和主句的主语一致时，可以将从句主语省略掉，只保留谓语部分。

例如：The person who called me is my boss. (called me是定语从句)= The person who called me is my boss.2. 宾语从句的省略当定语从句的主语与主句动词的宾语一致时，可以将从句主语和be动词都省略掉。

例如：I saw the book that I lost. (I lost是定语从句)= I saw the book I lost.3. 定语从句中的谓语省略定语从句的谓语动词如果是不及物动词或者介词短语，则可以将其省略。

例如：The boy (who is) playing basketball is my brother.4. 关系代词的省略在定语从句中，关系代词who, whom, which和关系副词where, when, why等可以根据具体情况省略。

例如：He is the teacher (who/that) I admire most.This is the house (where/which) I was born.需要注意的是，定语从句的省略规则不是绝对的，需要根据具体语境和语法要求来判断是否可以省略。

并且，在书面语中，省略成分要根据语法规则保持句子的完整并保证语句通顺。

定语从句的省略规则能够帮助我们简化句子结构，增强语言的简洁性和流畅性。

通过合理运用定语从句的省略规则，我们可以提高写作的效率和质量。

当然，在实际写作时要根据具体情况灵活运用，避免过度省略导致句子不够明确或理解起来困难。

(5)关系副词的省略①在某些表示时间的名词后的关系副词可以省略。

如the time, every time, each time, the moment等。

e、g、By the time (when) he was fourteen years old Einstein had learnt advanced mathematics all by himself、到十四岁时,爱因斯坦已经自学了高等数学。

Do you still remember the day(when) we first met? 您仍然记得我们第一次相遇的那一天不?②在某些句子中表示地点的名词后关系副词有时也可以省略。

如the place等。

e、g、That’s the place (where) he lived when he was in Paris、这就就是她在巴黎时所住的地方。

This is the place (where) we met years ago、这就就是多年前我们见面的地方。

③先行词the reason后面的关系副词可以省略。

e、g、That’s the reason (why) I asked you to come、这就就是我叫您来的原因。

The reason (why) he did that is quite clear、她那样做的理由就是非常清楚的。

④当先行词就是way时,关系副词常常省略。

e、g、I appreciate the way (that) you teach us、我非常喜欢您教我们的方式。

5.定语从句中需注意的事项(1)主谓一致问题这就是指关系代词在定语从句中作主语时,定语从句中谓语动词的单复数形式与先行词一致的问题。

①取决于先行词,先行词就是单数时,从句的谓语动词用单数;先行词就是复数时,从句的谓语动词用复数。

e、g、Mr、Smith, who is now downstairs, is asking to see you、史密斯先生要见您,她现在正在楼下。

定语从句中关系代词的省略与保留定语从句中关系代词的省略与保留的几种情况我们知道，关系代词在定语从句中作宾语时可以省略，但也有几种特殊情况，关系代词不用作宾语也可以省略，同学们学习和使用时请注意。

在下列情况下,引导宾语从句的关联词可以省略。

一、that在定语从句中作表语时。

例如:She is all (that) a teacher should be. 她具备一个老师应该具备的所有条件。

二、that在从句中作补语时。

例如:I'm not the fool(that) you thought me. 我不是你以前所认为的那个傻子了。

He is the nicest teacher (that) the students consider him in their school. 他就是学生认为学校中最好的那个老师。

三、作状语时的省略。

1. 当先行词是reason,且在定语从句中作原因状语时,可以用关系副词why或关系代词that,也可以省略。

例如:The reason (why/that) he failed was his laziness. 他失败的原因是因为他懒惰。

That is the reason I did it. 那就是我做那件事的原因。

2. 当先行词是way,且在定语从句中作方式状语时,关联词可用in which或that,也可以省略。

例如:The way(in which/ that) these comrades look at problems is wrong.这些同志看待问题的方式是错误的。

That was the way(in which / that) she worked the problem out. 她就是用那种办法解决问题的。

3. 当先行词是time时,关联词可用when, that或省略。

例如:The second time (that) I saw him was in 2000. 我第二次见到他是在2000年。

高中语法解析定语从句的省略定语从句是英语语法中常见的句子结构，它能够用来修饰名词或代词。

在定语从句中，我们经常会遇到省略现象，即省略关系词或主语。

本文就定语从句中省略的相关问题进行解析和讨论。

一、省略关系词定语从句中的关系词通常包括关系代词和关系副词。

当主句和定语从句的主语或宾语相同，并且从句中的谓语动词是及物动词时，我们可以省略关系词。

例如：- This is the book (that/which) I borrowed from the library.（这是我从图书馆借的书。

）- The person (whom/who) I met yesterday is a famous writer.（我昨天见的那个人是一位著名作家。

）在这两个例句中，关系词“that/which”和“whom/who”可以省略，因为它们在从句中充当的角色与主句中的词相同。

二、省略主语当定语从句中的主语与主句中的主语相同，并且主语在定语从句中不是从句的主要讨论对象时，我们可以省略定语从句中的主语。

例如：- This is the girl (who/that) won the singing competition.（这是赢得歌唱比赛的女孩。

）- The car (which/that) I bought last year is now broken.（我去年买的那辆车现在坏了。

）在这两个例句中，关系词“who/that”和“which/that”可以省略，因为它们在从句中的主语与主句中的主语相同。

三、省略宾语当定语从句中的宾语与主句中的宾语相同，并且宾语在从句中不是从句的主要讨论对象时，我们可以省略定语从句中的宾语。

例如：- This is the book (which/that) I'm reading.（这是我正在阅读的书。

）- He showed me the picture (which/that) he took in Paris.（他给我看了他在巴黎拍的照片。

定语从句中关系词的省略与不省略1.关系代词which,whom,who,that在定语从句中作宾语时可以省略.Here is the man (who/that/whom)you're been looking for.以下情况不能省略：〔1〕在介词+whom与介词+which中,whom,which不能省略.Do you know any shops nearby in which I can buy flowersThat is the headmaster with whom my father was talking just now.注：当介词放在动词后时,which,whom就可以省略.Who is the man (whom) you talked with just now〔2〕在非限制性定语从句中,作宾语的关系代词也不能省略.Mr Green,whom you know,is the tallest in our school.The elephant is like a spear,as anybody can see.〔3〕在the same ...as,such...as,as...as,the same...that中,as,that即使作宾语,也不能省略I have bought the same bicycle as you have (bought).(指同类用as)This is the same book that I read the day before yesterday.(that指同一个)〔4〕当由and,but,or等连词连接两个或两个以上的定语从句修饰一个先行词时,第一个关系代词可省,但第二,第三个不可省略.This is the book (which) I read yesterday and which I find very interesting.2.当that在从句中作补语时可以省略.He is not the man (that) he used to be.She is all (that) a teacher should be.3.在there be 构造中出现定语从句,或在定语从句中出现there be 时,用作主语的关系代词也可省略.There is a man downstairs (who) wants to see you.This is the best dictionary (that) there is in the library.4.状语的省略〔1〕领先行词是reason,而且定语从句中作原因状语时,关系代词可用why,that,也可以省略. The reason (why/that) he failed was his laziness.That is the reason (why) I did it.〔2〕领先行词是way,且在定语从句中作方式状语时,关系代词可用in which,that,也可以省略. The way (in which/that) these comrades look at problems is wrong.That was the way (in which/that) she worked the problem out.注意：当关系代词在定语从句中作主语时,不省略.例如：I don't know the way that/ which leads to the top of the mountains.(3)领先行词是time时,关系代词可用when,that 或省略.The second time (that) I saw him was in 1980.I don't know the exact time (when/that) the sports meet will take place.注意：关系代词作宾语有时也不能省略.。

定语从句先行词省略的情况定语从句先行词省略的情况定语从句先行词省略的情况有哪些?下面店铺为大家带来，仅供参考，希望能够帮到大家。

定语从句先行词省略的情况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。

定语从句中可以省略关系词的几种情况关系代词作宾语时的省略当关系代词who, whom, which和that在定语从句中用作动词宾语或介词位于句末时的介词宾语时，可以省略。

如：Is there anything (which) you wanted? 想要什么东西吗?Who is the man (that / who / whom) you were talking to? 刚才和你讲话的人是谁?关系代词作表语时的省略当关系代词that在定语从句中用作表语时，可以省略。

如：China is not the country (that) it was. 中国已不是过去的中国了。

(that作表语)关系副词when的省略用作时间状语的关系副词when通常不能省略，但有一种特殊情况，即用于day, year, time等少数几个词后时可以省略(也可换成that)。

如：That was the year (that) I first went abroad. 就是那一年我第一次出国了。

I’ll never forget the day (that) we met. 我永远也忘不了我们见面的那一天。

关系副词where的省略用作地点状语的关系副词where通常不能省略，但有一种特殊情况，即用于place, somewhere, anywhere, everywhere, nowhere少数几个词后时可以省略(也可换成that)。

如：This is the place (where) they met yesterday. 这就是他们昨天碰头的地方。

Have you somewhere (that) I can lie down for an hour? 你有没有一个什么地方可以让我躺一个小时？关系副词why的省略关系副词why通常只用于the reason后引导定语从句，且通常可换成that或for which，均可省略。

英语中关系代词的省略与不省略(个人整理全)-CAL-FENGHAI-(2020YEAR-YICAI)_JINGBIAN英语中关系代词的省略与不省略（个人整理全）个人总结:其实主要还是在非限制性定语从句，在定语从句中作主语，与介词连接的时候一般先行词不省略，做补语，状语定语从句中做宾语，大部分情况都可以省略，下方与介词连接的时候注意有两种，一种与介词连在一起的不能省，一种介词在后边与动词连接，关系代词自己放句子最前边的情况下，关系代词也可省略。

一、英语定语从句中关系词的省略与不省略。

1.关系代词Which, who, whom, that 在定语从句中作宾语时可以省略。

E.g.：Here is the man (who/ that/ whom) you’ve been looking for.以下情况不能省略：（1）介词＋whom 与介词＋ which 中， whom, which 不能省略。

E.g.：Do you know any shops nearby in which I can buy flowers?E.g.: That’s the headmaster with whom my father was talking just now.注意：当介词放在动词后时，which, whom 就可以省略。

E.g.: Who is the man (whom) you talked with just now.(2).在非限制性定语从句中，作宾语的关系代词也不能省略。

E.g.: Mr. Green, whom you know, is the tallest in our school.E.g.: The elephant looks like a spear, as anybody can see.(3).在 the same…as , such…as, as…….as , the same….that中， as, that, 即使作宾语，也不能省略。

定语从句中关系词的省略与不省略1.关系代词which,whom,who,that在定语从句中作宾语时可以省略.Here is the man (who/that/whom)you're been looking for.以下情况不能省略：（1）在介词+whom与介词+which中,whom,which不能省略.Do you know any shops nearby in which I can buy flowers?That is the headmaster with whom my father was talking just now.注：当介词放在动词后时,which,whom就可以省略.Who is the man (whom) you talked with just now?（2）在非限制性定语从句中,作宾语的关系代词也不能省略.Mr Green,whom you know,is the tallest in our school.The elephant is like a spear,as anybody can see.（3）在the same ...as,such...as,as...as,the same...that中,as,that即使作宾语,也不能省略I have bought the same bicycle as you have (bought).(指同类用as)This is the same book that I read the day before yesterday.(that指同一个)（4）当由and,but,or等连词连接两个或两个以上的定语从句修饰一个先行词时,第一个关系代词可省,但第二,第三个不可省略.This is the book (which) I read yesterday and which I find very interesting.2.当that在从句中作补语时可以省略.He is not the man (that) he used to be.She is all (that) a teacher should be.3.在there be 结构中出现定语从句,或在定语从句中出现there be 时,用作主语的关系代词也可省略.There is a man downstairs (who) wants to see you.This is the best dictionary (that) there is in the library.4.状语的省略（1）当先行词是reason,而且定语从句中作原因状语时,关系代词可用why,that,也可以省略. The reason (why/that) he failed was his laziness.That is the reason (why) I did it.（2）当先行词是way,且在定语从句中作方式状语时,关系代词可用in which,that,也可以省略. The way (in which/that) these comrades look at problems is wrong.That was the way (in which/that) she worked the problem out.注意：当关系代词在定语从句中作主语时,不省略.例如：I don't know the way that/ which leads to the top of the mountains.(3)当先行词是time时,关系代词可用when,that 或省略.The second time (that) I saw him was in 1980.I don't know the exact time (when/that) the sports meet will take place.注意：关系代词作宾语有时也不能省略.。

英语中关系代词的省略与不省略（个人整理全）个人总结:其实主要还是在非限制性定语从句，在定语从句中作主语，与介词连接的时候一般先行词不省略，做补语，状语定语从句中做宾语，大部分情况都可以省略，下方与介词连接的时候注意有两种，一种与介词连在一起的不能省，一种介词在后边与动词连接，关系代词自己放句子最前边的情况下，关系代词也可省略。

一、英语定语从句中关系词的省略与不省略。

1.关系代词Which, who, whom, that 在定语从句中作宾语时可以省略。

.：Here is the man (who/ that/ whom) you’ve been looking for.以下情况不能省略：（1）介词＋whom 与介词＋ which 中， whom, which 不能省略。

.：Do you know any shops nearby in which I can buy flowers?.: That’s the headmaster with whom my father was talking just now.注意：当介词放在动词后时，which, whom 就可以省略。

.: Who is the man (whom) you talked with just now.(2).在非限制性定语从句中，作宾语的关系代词也不能省略。

.: Mr. Green, whom you know, is the tallest in our school..: The elephant looks like a spear, as anybody can see.(3).在 the same…as , such…as, as…….as , the same….that中， as, that, 即使作宾语，也不能省略。

.: I have bought the same bicycle as you have( 这里可以理解为省略bought) (指同类用as)The same …….as : 与…..相同/一样/一致。

定语从句在什么情况下省略关系词(关系代词和关系副词)定语从句在什么情况下省略关系词(关系代词和关系副词)关系词有时能够省略，但这只限于限制性定语从句中，在非限制性定语从句中，关系词则不可省略。

关系词的省略主要限于以下几个方面。

如：1. 关系代词作宾语时的省略。

当关系代词who, whom, which和that在定语从句中用作动词宾语或介词位于句末时的介词宾语时，能够省略。

如：Is there anything (which) you wanted? 想要什么东西吗?Who is the man (that / who / whom) you were talking to? 刚才和你讲话的人是谁?2. 关系代词作表语时的省略。

当关系代词that在定语从句中用作表语时，能够省略。

如：China is not the country (that) it was. 中国已不是过去的中国了。

(that作表语)3. 关系代词作宾补时的省略。

当关系代词that在定语从句中用作宾语补足时，能够省略。

如：I’m not the madman (that) you thought me. 我并不是你所认为的那个疯子。

(that作宾语补语)4. 关系代词作主语时的省略。

一般说来，关系代词作主语时是不能省略的，但是在以下两种特殊情况，也可省略：(1) 当定语从句为there be 结构时，作主语的that能够省略。

如：I’ve told you all (that) there is to tell. 该告诉的我都告诉你了。

(2) 当主句为there be结构时，在定语从句中作主语的that, which, who有时可省略。

如：T here’s a gentleman (who) wants to see you. 有一位先生要见您。

(3) 当主句为it is, here is结构时，在定语从句中作主语的that有时可省略。

定语从句中的省略在定语从句中,同样存在许多省略现象,现在把其中的几种简单地阐述一下,如有不妥之处,敬请批评指正;一、省略式定语从句当定语从句的主语和主句的主语一致时,可以省略从句中的部分内容;如：I have saved quite a lot of money with which I’d like to buy a new car for myself.I have quite a lot of money with which to buy a new car for myself.我存了不少钱,我打算买辆新车自用;He was trying to find a room in which he could keep all his goods.He was trying to find a room in which to keep all his goods.二、关系代词的省略1．关系代词在从句中作及物动词式介词的宾语时,关系代词常常省略;如：The man whom/who/that we saw yesterday is Mr. Brown.The man we saw yesterday is Mr. Brown我们昨天看见的那个人是布郎先生;The girl whom/who/that I work with is coming.The girl I work with is coming.和我一块工作的那个女孩过来了;The picture which/that your are looking at was painted by a friend of mine.The picture you are looking at was painted by a friend of mine.你正在看的那幅画是我的一个朋友画的;注：如果定语从句中的介词必须位于从句的句中或句末才可以省略关系代词,如果介词在关系代词之前,关系代词绝对不可省;如：The girl with whom I work is coming.2. that在从句中作表语是,经常省略;如：He is not the man that he was when I was him first.他不是我第一次看到他是的那个人了;He is all that a teacher should be.他是教师的典范;3. 当句首或句尾有who/there/here/that/it is /was 时,作方语的关系代词可以省略;该情况主要用于口语;如：Who was it that said so谁那么说的Here is somebody that wants to see you.这里有人要见你;This is the best dictionary that there is in this library.这是该图书馆最好的字典;There is a man downstairs who wants to see you.楼下有人要见你;4. 在诗歌或谚语中,往往没有先行词;Who He who never climbs will never fall.不登高不跌跤;要前进就会有挫折三、关系副词的省略当先行词是way, reason, place, the day, the time, every time, each time, the moment, 关系副词可以省略;如：By the time when he was fourteen, Einstein had learned advanced mathematics all by himself.14岁时,爱因斯坦已经自学了高等数学;The reason that/ why/ for which/-- he was fired is not difficult to explain.他被解雇的的原因不难解释;I’m quite satisfied with the way that/ in which/-- he had done it.我对他做此事的方式很满意;This is the place where we met years ago.这是我们几年前见面的地方;Do you still remember the day when we first met 你还记得我们第一次见面的那一天吗。

定语从句中省略的情况定语从句中省略的情况在复合句中，修饰某一名词或代词的从句叫定语从句。

被修饰的名词或代词叫先行词，定语从句一般放在先行词的后面。

以下内容是店铺为您精心整理的定语从句中省略的情况，欢迎参考！定语从句中省略的情况一Which 和that同为关系代词，都可指物，并且有时会觉得用that 也可以，用which 也没错。

但在哪些情况下是只能用which的呢？1.在非限定性定语从句中，无论如何也不能用thatA.This brunch of carnation, which is wound by silk ribbon ,is the first gift to my mom.这束康乃馨是送给妈妈的第一份礼物，它被丝带所缠绕。

B.These books,which you can get at any corner of the town will give you all the information.这本书你可以在镇里的各个角落获取得到，它会给你所有的信息。

2.关系代词前面出现介词时A.Those days in which you could travel without a passport has gone.那些你不用带护照可以旅行的日子一去不复返了。

B.That`s the motel at which we stayed several years ago.那是我们许多年以前停留的汽车旅馆。

（此处which不可替换为that）3.当先行词本身为that（指代）时A.what about that which had appeared in recent activities.那个怎么样，在最近的活动中出现过. (结合具体语境看that所指代的是)B.The knowledge are from various fields and that which display the waves of human being.知识来自不同领域并且它也彰显这人类的智慧。

定语从句中可以省略关系词的几种情况关系代词作宾语时的省略当关系代词who, whom, which和that在定语从句中用作动词宾语或介词位于句末时的介词宾语时，可以省略。

如：Is there anything (which) you wanted? 想要什么东西吗?Who is the man (that / who / whom) you were talking to? 刚才和你讲话的人是谁?关系代词作表语时的省略当关系代词that在定语从句中用作表语时，可以省略。

如：China is not the country (that) it was. 中国已不是过去的中国了。

(that作表语)关系副词when的省略用作时间状语的关系副词when通常不能省略，但有一种特殊情况，即用于day, year, time等少数几个词后时可以省略(也可换成that)。

如：That was the year (that) I first went abroad. 就是那一年我第一次出国了。

I’ll never forget the day (that) we met. 我永远也忘不了我们见面的那一天。

关系副词where的省略用作地点状语的关系副词where通常不能省略，但有一种特殊情况，即用于place, somewhere, anywhere, everywhere, nowhere少数几个词后时可以省略(也可换成that)。

如：This is the place (where) they met yesterday. 这就是他们昨天碰头的地方。

Have you somewhere (that) I can lie down for an hour? 你有没有一个什么地方可以让我躺一个小时？关系副词why的省略关系副词why通常只用于the reason后引导定语从句，且通常可换成that或for which，均可省略。

定语从句中关系词的省略和替代技巧定语从句是英语语法中一个重要的部分，它能够为主句提供更多的修饰和信息。

而在定语从句中，关系词的省略和替代是一项基本技巧，能够使句子更简洁明了。

本文将介绍关于定语从句中关系词省略和替代的几种常用技巧。

一、关系代词的省略在定语从句中，关系代词"that"和"which"可以被省略，这样可以使句子更加简洁，但需要注意以下几点：1. 当关系从句修饰人的时候，只能省略"that"，不可以省略"which"。

例如：- The man who is sitting over there is my father.（那个坐在那里的人是我父亲。

）- The man sitting over there is my father.（那个坐在那里的人是我父亲。

）2. 当关系从句中有逗号隔开的非限制性定语从句时，不可以省略关系代词。

例如：- I have a pet dog, which is very cute.（我有一只宠物狗，它非常可爱。

）二、关系代词的替代除了关系代词的省略，我们还可以使用其他一些词语来替代关系词，以避免重复使用，使句子更加流畅。

以下是常用的替代词语：1. 关系代词"that"的替代词- which：用来替代关系代词"that"，只能用于非限制性定语从句。

- who：用来替代关系代词"that"，指代人。

- whom：用来替代关系代词"that"，作为宾语指代人。

例如：- The book that I'm reading is very interesting.（我正在读的那本书非常有趣。

）- The book which I'm reading is very interesting.（我正在读的那本书非常有趣。

定语从句中关系词省略的6种情形关系词有时可以省略定语从句中关系词省略的6种情形关系词有时可以省略，但这只限于限制性定语从句中，在非限制性定语从句中，关系词则不可省略。

一、关系代词作宾语时的省略:当关系代词who， whom, which和that在定语从句中用作动词宾语或介词位于句末时的介词宾语时，可以省略。

如：在定语从句中用作动词宾语或介词位于句末时的介词宾语时,可以省略。

如：Is there anything (which） you wanted？想要什么东西吗? Who is the man (that / who / whom) you were talking to? 刚才和你讲话的人是谁?二、关系代词作表语时的省略：当关系代词that在定语从句中用作表语时,可以省略.如：China is not the country （that) it was. 中国已不是过去的中国了。

（that作表语）三、关系代词作宾补时的省略:当关系代词that在定语从句中用作宾语补足时，可以省略。

如:I’m not the madman （that） you thought me. 我并不是你所认为的那个疯子。

(that作宾语补语）四、关系副词:when的省略用作时间状语的关系副词when通常不能省略，但有一种特殊情况，即用于day，year， time等少数几个词后时可以省略(也可换成that)也可换成.如：That was the year （that) I first went abroad。

就是那一年我第一次出国了。

I’ll never forget the day （that） we met. 我永远也忘不了我们见面的那一天。

五、关系副词where的省略用：作地点状语的关系副词where通常不能省略，但有一种特殊情况,即用于place，somewhere， anywhere， everywhere， nowhere少数几个词后时可以省略（也可换成that）。

定语从句的省略定语从句是英语中常用的修饰名词的从句形式，用来进一步描述或限定名词的性质、特征等。

通常，定语从句由一个引导词引导，并且在从句中有一个动词，一个主语等。

然而，在一些情况下，我们可以省略定语从句中的部分内容，从而简化句子的结构，使语言更加简洁。

本文将介绍定语从句的省略规则和注意事项。

一、定语从句的省略规则1. 省略引导词和be动词在定语从句中，如果从句中的主语和主句中的主语一致，并且从句中的谓语动词是be动词，那么我们可以省略引导词和be动词。

例如：The car that is parked outside is mine.The car parked outside is mine.2. 省略关系代词who/whom/which当定语从句的关系代词在从句中作宾语时，可以省略。

例如：The girl who(m) I saw yesterday is my neighbor.The girl I saw yesterday is my neighbor.3. 省略关系代词whose关系代词whose表示所有关系，当其后修饰的名词为物时，可以省略。

例如：The book whose cover is torn belongs to me.The book with the torn cover belongs to me.4. 省略关系代词where/when当定语从句中的关系代词是where或when时，可以省略。

例如：This is the school where I studied for four years.This is the school I studied for four years.二、定语从句的省略注意事项1. 定语从句的省略是为了简化句子结构，使其更简洁明了。

但在使用时需要注意不影响句子的准确性和清晰度。

2. 省略定语从句的同时，也要确保句子的语义不会产生歧义。