高中英语定语从句详解

定语从句【基本概念】A friend is someone who knows all about you and still loves you.1. 定语从句：在复合句中修饰名词或代词的从句。

定语从句在句中的作用相当于一个形容词。

2. 先行词：所修饰的名词或代词称为先行词。

3. 位置关系为：先行词+定语从句。

4. 关系词分类：关系代词和关系副词。

常用的关系代词：who, whom, whose, that, which, as.常用的关系副词：when, where, why.【关系代词】先行词是人1．作主语who, thate.g. The girl who/ that is standing under the tree is my sister.2. 作宾语who, whom, thate.g. The girl (who/ whom/ that )he is talking to is my sister.3. 作定语whosee.g. The girl whose hair is red is my sister.先行词是物1. 作主语which / thate.g. The book which/ that is on the table is mine.2. 作宾语which/ thate.g. The book (which / that) you bought yesterday is good.3. 作定语whosee.g. The book whose cover is blue is mine.指出关系词在定语从句中的成分1.The man who came to our school is Mr. Wang.2.The girl whom I met is Lucy.3.A child whose parents are dead is called Tom.4.I like the book which you bought yesterday.总结：如何选用定语从句中的关系词1. 分清主句和定语从句2. 确定定语从句的先行词3. 把先行词带回到定语从句中去，看其在定语从句中做什么语法成分（主语，宾语，定语或状语）4. 若先行词在从句中作主语、宾语或定语则选择关系代词，若在从句中作状语，则选择关系副词。

定语从句总结一：定语后置的总结〔1〕介词短语作定语：the landlady in the bad situation/ the way in error/ thethiefwith a gun / the communication in English /The student in sorrow didn’t pass the English exam.〔2〕表语形容词作定语：the presidents alive in the U.S.A are all male.〔3〕不定合成代词被修饰：Although I had dinner tonight, I still need something delicious tohave.〔4〕副词作定语：the students here are all come from Shenyang.〔5〕不定式作后置定语：the destination to go / the cookbook to use / the movie to cast/ the match to fire / the classical music to listen / the hammerto use / the task to finish〔6〕现在分词作定语：the man pronouncing the wrong pronunciation is a principal. 〔7〕过去分词作后置定语：the service given in the hotel is 5-star. / the signal signed bythe students are for cheating in the final exam.(P10-1) English is a language spoken all around the world.(P10) In only fifty years, English has developed into thelanguage most widely spoken and used in the world.〔8〕定语从句：〔P4〕The lesson (that) we can learn from Chuck and all others who haveunusual friends is that friends are teachers.二：定语从句的概念和公式特点(P3-1):关系代词在从句中作主语Chuck is a businessmanwho is always so busy that he has little time for his friends.先行词〔被修饰的名词或代词〕+ 关系词〔起连接作用的代词和副词〕+〔,〕定语从句〔在句中作成分〕三：定语从句的分类When I took the money from her grandfather, I looked back at the girl, who was giving me the prettiest, largest smile (that)I have ever seen.限定性定语从句和非限定性定语从句的区别1：限定性没有逗号，非有逗号。

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高中英语定语从句详解Ⅰ. 概念：(1）定语从句:在主从复合句中用作定语的从句叫定语从句。

定语从句一般紧接在先行词（antecedent)后面。

（2) 先行词：被定语从句修饰的成份.先行词可以为一个词,短语，或整个主句。

（3) 引导定语从句的词叫关系词，分为关系代词和关系副词。

关系词的作用：1）引导定语从句，连接主句和从句,相当于一个连词；2) 必在从句中作某个句子成份（可以做主语，宾语,表语，定语,状语)常用的关系代词: that、 which、 who、whom、whose,当关系代词在定语从句中做宾语时，关系代词可以省略。

常用的关系副词（在从句中只作状语）： when（时间状语）、why(原因状语）、 where(地点状语）可以修饰人的关系代词：that， who, whom, whose可以修饰事的关系代词：that, which， as， whose，The student who answered the question was John。

I know the reason why he was so angry。

The boy (whom) you are talking to is my brother.I’d like a room whose window faces the sea。

定语从句三步：第一找出先行词；第二看先行词在定语从句中的语法功能（做主语、宾语、表语或状语）；第三选择合适的关系词。

高中英语语法知识总结：定语从句下面就是小编给大家带来的高中英语语法知识总结：定语从句，希望能帮助到大家!高中英语语法知识总结：定语从句易错点1 关系代词与关系副词的混用1.定语从句相当于一个形容词，起定词作用，修饰名词或代词2.定语从句的引导词的三种功用:( 1)引导定语从句(2)替代先行词(3)在定语从句中充当一定的成分。

3.解题要领:根据定语从句中所缺成分来确定是用关系代词还是关系副词，决不要因先行词是时间名词就用when，是地点名词就用where。

易错点2 关系代词who、whom、whose的误用对于定语从句关系词的考查，首先要确定从句是什么类型的从句，然后再分析关系词在从句中的成分，最后选择正确的词。

要求考生具有一定的句子分析能力，和理解能力。

如果缺少主宾表，要用that或which，缺少状语用关系副词when，where，why，缺少定语用whose。

易错点3 关系代词that和which的误用只用which，不能用that的情况(1) 在介词提前到关系代词之前形成"介词+关系代词"结构来修饰表事物的先行词时，关系代词必须用which.如：☞The house in which we live is very large. 我们住的房子非常大。

这就是老师正在谈及的那本参考书。

注意：如果介词不放在修饰事物的限定性定语从句的句首，which就可换为that，如：☞This is the question which/that we’ve had so much discussion about. =This is the question about which we’ve had so much discussion. 这就是我们已经多次讨论过的问题。

(2) 先行词为"those+表事物的复数名词"时，关系代词通常只用which而不用that。

如：☞Students should keep in mind those regulations which restrict their behavior.学生应牢记那些规范自己的行为准则。

高中英语定语从句全面详细讲解定语从句一定义及相关术语1(定语从句:修饰某一名词或代词的从句叫定语从句。

定语从句一般紧跟在它所修饰的词之后。

2(先行词:被定语从句修饰的词叫先行词。

3(关系词:引导定语从句的词叫关系词。

关系词有关系代词和关系副词。

关系代词有that, which, who, whom, whose, as等;关系副词有when, where, why等提示: 关系词在定语从句中有三大作用1. 连接作用——连接先行词和定语从句。

2. 替代作用——在定语从句中替代从句所修饰的先行词。

3. 成分作用——在定语从句中作主语、宾语、定语或状语。

The man who is shaking hands with my father is a policeman. 该句中，who is shaking hands with myfather 是定语从句，修饰先行词the man，“who”是引导定语从句的关系词，在定语从句中代替先行词the man，在定语从句中作主语。

注意:弄清楚关系词在定语从句中充当什么成分，是掌握定语从句、选择好关系词的关键。

二关系代词引导的定语从句引导定语从句的关系代词主要有who, whom, whose, which, that等。

它们分别代替前面的先行词，并在定语从句中作主语、宾语或定语。

1. who 指人，在定语从句中作主语。

The boys who are playing football are from Class One. 正在踢足球的男孩是一班的。

Yesterday I helped an old man who had lost his way. 昨天我帮助了一位迷路的老人。

That is the teacher who teaches us physics. 那就是教我们物理的老师。

. whom 指人，在定语从句中做宾语，常可省略，在口语或非正式文体中常可用who 来代替。

高中英语定语从句讲解及练习定语从句是高中重点知识，也是高考常考点，大家也不容易掌握，这篇文章主要教你关系代词引导的定语从句关系副词引导的定语从句判断关系代词与关系副词限制性和非限制性定语从句等内容，有例题讲解定语从句在句中做定语，修饰一个名词或代词，被修饰的名词词组或代词即先行词。

定语从句通常出现在先行词之后，由关系词（关系代词或关系副词）引出。

关系代词有：who, whom, whose, that, which等。

关系副词有：when, where, why等。

18.1 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，在从句中作主语和宾语。

例如：Is he the man who/that wants to see you? 他就是你想见的人吗？（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 prosperity which / that had never been seen before appears in the countryside.农村出现了前所未有的繁荣。

高中英语知识点归纳定语从句的用法及常见引导词定语从句是高中英语语法中的一个重要部分，它能够用来修饰名词或代词。

本文将对定语从句的用法及常见引导词进行系统的归纳和总结。

一、定语从句的概念和作用定语从句由一个句子引导另一个句子，它的作用是为主句中的名词或代词提供限定信息，进一步描述或解释主句中的内容。

定语从句通常紧跟在被修饰的名词或代词之后。

二、定语从句的引导词1. 关系代词：关系代词用于引导定语从句，并在从句中充当主语、宾语或介词宾语。

常见的关系代词有：who、whom、whose、which、that等。

例如：The boy who is standing over there is my brother.（那个站在那边的男孩是我弟弟。

）2. 关系副词：关系副词用于引导定语从句，修饰地点、时间或原因等。

常见的关系副词有：where、when、why等。

例如：This is the place where we met last time.（这是上次我们见面的地方。

）三、限制性定语从句和非限制性定语从句1. 限制性定语从句：限制性定语从句用来对先行词进行限定，如果去掉它，主句的意思就不完整，从句不能省略。

例如：The book that I bought yesterday is very interesting.（我昨天买的那本书非常有趣。

）2. 非限制性定语从句：非限制性定语从句用来对先行词进行补充或说明，如果去掉它，主句的意思仍然完整，从句用逗号隔开。

例如：Tom, who is my best friend, will come to my birthday party.（汤姆，我的好朋友，会来参加我的生日派对。

）四、定语从句的位置定语从句通常紧跟在被修饰的名词或代词之后，可以放在句首、句中或句末。

例如：The woman who is talking to the teacher is my mother.（正在和那个老师谈话的女人是我妈妈。

英语语法定语从句基础知识学习定语从句在复合句中作定语，修饰一个名词或代词，被修饰的名次或代词即现行词。

定语从句通常出现在先行词之后，由关系词（关系代词或关系副词）引出。

关系代词有：which、that、who、whom 、whose 关系副词有：when 、where、why 定语从句的引导词既起引导从句的作用，同时又担任从句的主语、宾语、定语（whose）、和状语，在限制性定语从句中作宾语的关系代词可以省略，在非限制性定从中不可省。

考点一、由which、that引导的定从，在从句中作主语、宾语，指物The building which/that stands near the river is our school.I lost the book (which/that)you gave me.考点二、由who、whom、that、whose在从句中主语、宾语、定语This is the man who/that helped me.I don’t know the man (who/whom/that)you talked with.Nobody wants the house whose roof has fallen in.the roof of which has fallen in.of which the roof has fallen in.考点三、使用关系副词应注意下列几点：1. 关系副词在意义上都相当于一定的介词+ which结构：when = on (in, at, during…) + which where = in (at, on…) + which why = for whichI was in Beijing on the day when (= on which) he arrived.The office where (= in which) he works is on the third floor.This is the chief reason why (= for which) we did it.2. 当先行词是表时间和表地点的词时，一定要注意分析从句的结构，如果缺少主语或宾语时，关系词应该用which 或that; 缺少时间状语或地点状语时，才能用when 或where，I’ll never forget the day when my hometown was liberated.I’ll neve r forget the days which / that we spent together last summer.His father works in a factory where radio parts are made.His father works in a factory which / that makes radio parts.3. when 和where 既可以引导限制性定语从句，也可以引导非限制性定语从句。