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英语定语从句用法总结(完整)1、定语从句：定语从句是由关系代词或关系副词引导的从句，其作用是作定语修饰主句的某个名词性成分，相当于形容词，所以又称为形容词性从句，一般紧跟在它所修饰的先行词后面。
2、关系词：引导定语从句的关联词称为关系词，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，绝对没有WHAT；关系副词有where, when, why等。
关系词常有3个作用：①连接作用，引导定语从句。
②代替主句中的先行词，甚至可能是主句中的一部分或者整个主句。
③在定语从句中充当一句子成分。
注：关系代词有主语、宾语之分。
一般whom作为宾语。
3、定语：定语用来限定、修饰名词或代词的，是对名词或代词起修饰、限定作用的词、短语（动词不定式短语、动名词短语和分词短语）或句子，汉语中常用‘……的’表示。
主要由形容词担任，此外，名词，代词，数词，分词，副词，不定式以及介词短语也可以来担任，也可以由一个句子来担任。
单词作定语时通常放在它所修饰的词之前，作前置定语。
短语和从句作定语时则放在所修饰的词之后，作后置定语。
4、先行词：被定语从句修饰的名词、代词称为先行词。
[编辑本段]关系代词引导的定语从句举例关系代词所代替的先行词是人或物的名词或代词，并在从句中充当主语、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，who做主语指人，whom作宾语指人，that既可作主语又可作宾语（作宾语可以省略），可以指人也可以指物。
在从句中所起作用如下：(1)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）(2)He is the man whom/ that I saw yesterday、他就是我昨天见的那个人。
定语从句语法总结定语从句是修饰名词或代词的从句，在句中充当定语的作用。
它可以用来进一步描述、限定或补充名词或代词的含义。
定语从句通常由关系代词或关系副词引导。
以下是一些关于定语从句的语法总结：1.关系代词：（1）主格：who，which，that- Who用于指人，作主语时代替的人- The person who is standing over there is my brother.- Which用于指物，作主语时代替的事物- The book which is on the table is mine.- That用于指人或物，作主语时代替的人或事物，比who和which 更常用- The man that is talking to Mary is her boss.（2）宾格：whom，which，that- Whom用于指人，作宾语时代替的人- The person whom I met yesterday is my teacher.- Which用于指物，作宾语时代替的事物- The book which I bought yesterday is very interesting.- That用于指人或物，作宾语时代替的人或事物，比whom和which 更常用- The man that I saw in the park is my neighbor.（3）所有格：whose- Whose用于指人或物，表示所有关系- The woman whose husband is a doctor is my aunt.2. 关系副词：when，where，why- When用于指时间，修饰表示时间的名词- The day when we met was sunny and beautiful.- Where用于指地点，修饰表示地点的名词- The city where I was born is very beautiful.- Why用于指原因，修饰表示原因的名词- The reason why he came late is that he missed the bus.注意事项：-在非限定性定语从句中，关系代词或关系副词前面需加逗号或分号- 关系代词who，which，that在口语和非正式的书面语中，常可省略-在定语从句中，关系代词或关系副词在从句中可以充当主语、宾语、表语或定语，并且其人称、数要与先行词保持一致-定语从句的谓语动词通常与先行词保持一致，但也有例外情况，如当先行词表示所有者时，谓语动词要与关系代词的先行词保持一致。
定语从句语法专题（Attributive Clauses）教案一. 定语从句的概述:1.定语从句：在复合句中，修饰某一名词或代词的从句叫定语从句。
在句中做定语，被修饰的名词或代词，叫做先行词。
从句通常放在先行词之后，由关系词（关系代词或关系副词）引导。
其作用是作定语修饰主句的某个名词性成分，相当于形容词，所以又称为形容词性从句，一般紧跟在它所修饰的先行词后面。
eg She is the girl（who got the first prize.）girl先行词who充当从句主语, 从句做定语修饰girlThis is the boy who broke the window.这就是打破窗子的孩子。
the boy是先行词, who broke the window是限制性定语从句, 明确指出theboy是打破窗子的那个孩子,who 在从句中充当主语That is the house where he lived ten years ago.He is the man who/that lives next door.He is the man who I want to see.先行词关系词定语从句复合句: 是由一个主句和一个或一个以上的从句构成的句子, 复合句中的主句和从句都具有完整的的主语和谓语, 主句是复合句的主体, 可以独立存在, 从句需要有一个连词引导, 是修饰说明主句的, 不能独立存在, 根据在句中的不同作用, 从句可以分为三类: 定语从句, 名词性从句, 状语从句。
二. 引导定语从句的关系词有两大类:1.关系词：引导定语从句的关联词称为关系词，关系词有关系代词和关系副词。
关系代词: that, who, whom, whose, which, as（主, 宾, 定）关系副词: when, where, why.（状语）2.关系词的作用:（1）引导定语从句, 在先行词和定语从句之间起连接作用；（2）代替先行词在句中充当成分。
定语从句语法总结定语从句语法总结定语从句语法总结一．几个基本概念1.定语从句的定义：用作定语的从句叫定语从句。
2.先行词：被定语从句所修饰的名词或代词。
3.定语从句的位置：紧跟先行词（名词或代词）之后。
4.引导词：引导定语从句的词（包括关系代词和关系副词）。
（1）关系代词：thatwhowhomwhichas（2）关系副词：whenwherewhy5.引导词的位置：位于定语从句之前（先行词之后）。
【as除外】6.引导词的功能（作用）：（1）连接先行词和定语从句。
（2）在定语从句中充当一定的成分（关系代词充当主语或宾语，关系副词充当状语）。
7.定语从句的类型：（1）限定性定语从句（主句和定语从句之间无逗号）。
①直接由引导词引导定语从句The man who you’re talking to is my friend.②由介词+关系代词（whomwhich）引导The man to whom you’re talking is my fr iend.I need a pen with which I can write a letter.=I need a piece of paper on which I can write a letter.介词的选用可根据从句中的相关词组确定，该介词通常可以放在关系代词之前，也可放在从句之尾。
例如：The man (whowhomthat)I talked about at the meeting is from Beijing University.=The man about whom I talked at the meeting is from Beijing University.The palace (whichthat)I often pay a visit to was built in the 17th century.=The palace to which I often pay a visit was built in the 17th century.（2）非限定性定语从句（主句和定语从句之间用逗号隔开）。
定语从句讲解(完整版)定语从句是一种常见的语法结构，用于对名词或代词进行修饰和限定。
在英语中，定语从句的使用可以使句子更加丰富和准确。
下面，我将为您详细讲解定语从句的构成、用法和注意事项。
一、定语从句的构成定语从句由引导词、关系词和从句组成。
引导词通常是先行词，即被修饰的名词或代词；关系词用于引导定语从句，并将先行词与从句连接起来；从句则是对先行词进行修饰和限定的部分。
1. 引导词：先行词通常是名词或代词，它可以是主语、宾语或表语。
例如：The book that you gave me is very interesting.（你给我的那本书很有趣。
）The man who is talking to the teacher is my father.（正在和老师交谈的那个人是我的父亲。
）2. 关系词：关系词用于引导定语从句，并将先行词与从句连接起来。
关系词有who、which、that、whom、whose等。
例如： The book that you gave me is very interesting.（你给我的那本书很有趣。
）The man who is talking to the teacher is my father.（正在和老师交谈的那个人是我的父亲。
）3. 从句：从句是对先行词进行修饰和限定的部分。
从句中通常包含主语、谓语和宾语等成分。
例如：那本书很有趣。
）The man who is talking to the teacher is my father.（正在和老师交谈的那个人是我的父亲。
）二、定语从句的用法1. 限定性定语从句：限定性定语从句对先行词起到限定作用，即只有满足定语从句条件的名词或代词才是先行词的准确含义。
限定性定语从句通常紧跟在先行词之后，且不能用逗号与主句隔开。
例如： The book that you gave me is very interesting.（你给我的那本书很有趣。
定语从句语法知识点总结定语从句是用来修饰一个名词或代词的句子，常常用来给出进一步的描述或限定。
以下是一些定语从句的语法知识点总结：1. 引导词：定语从句通常由关系代词（that, which, who, whom, whose）或关系副词（where, when, why）引导。
2.关系代词的选用：- that: 可以引导限定性和非限定性定语从句；用于人和物；- which: 用于非限定性定语从句，用于物；- who/whom: 用于人，在从句中作主语时用who，作宾语时用whom；- whose: 用于人和物，表示所属关系。
3.关系副词的选用：- where: 用于地点，在从句中作地点状语；- when: 用于时间，在从句中作时间状语；- why: 用于原因，在从句中作原因状语。
4.限定性定语从句和非限定性定语从句：-限定性定语从句用来限定所修饰名词或代词的范围，不能省略，不用逗号与主句分开；-非限定性定语从句用来对前面的名词或代词进行补充说明，可以省略，用逗号与主句分开。
5.关系代词作宾语的省略：- 当关系代词在定语从句中作宾语时，可以省略：即省略关系代词that/which/who/whom，但要保留动词的宾语位置。
6.关系代词和关系副词在定语从句中的不同作用：-关系代词在定语从句中充当一个成分，可以作主语、宾语、表语等；-关系副词在定语从句中充当一个状语，只能作时间、地点或原因状语。
7.先行词和定语从句的一致性：-关系代词的单复数和人称应与其在定语从句中的先行词保持一致；- 关系代词whose引导的定语从句是表示所属关系的，后面的先行词是被关系代词修饰的名词。
需要注意的是，定语从句的位置可以是句首、句中或句尾，要根据具体情况进行调整。
英语定语从句语法详解定语从句是英语中非常重要的一个语法结构，用于修饰名词或代词，并且在句子中起到定语的作用。
在本文中，我们将详细介绍英语定语从句的概念、用法以及常见的引导词。
一、定语从句的概念和用途定语从句是由一个句子作为整体，用来修饰名词或代词的句子。
它可以提供进一步的信息，使得句子更加具体明确。
定语从句通常放置在被修饰的名词或代词之后。
例如：The book that I bought yesterday is very interesting.我昨天买的那本书非常有趣。
In this sentence, "that I bought yesterday"是一个定语从句，修饰名词"book"，进一步解释了这本书的情况。
二、引导定语从句的关系代词和关系副词定语从句通常由关系代词或关系副词引导。
常见的关系代词有：who、whom、whose、which、that等；常见的关系副词有：when、where、why等。
1. 关系代词的用法a. who/whom/whose：用于人。
who用作主语或宾语，whom用作宾语，而whose表示所有关系。
例如：The man who is standing over there is my father.那个站在那里的人是我爸爸。
The boy whom I met yesterday is my classmate.我昨天遇到的那个男孩是我的同学。
This is the house whose roof is red.这是一座屋顶是红色的房子。
b. which/that：用于物。
which用作主语或宾语，that可用作主语、宾语或定语。
例如：The car which/that is parked in front of the house is mine.停在房子前面的那辆车是我的。
The book which/that I borrowed from the library is very interesting.我从图书馆借来的那本书非常有趣。
定语从句语法完全总结定语从句是修饰一个名词或代词的从句，用来进一步限定或描述该名词或代词。
定语从句可以通过关系代词或关系副词引导。
关系代词：1. who/whom: 用于修饰人，作主语时用who，作宾语时用whom。
- The girl who is sitting next to me is my best friend.- The man whom I met yesterday is a famous actor.2. that: 用于修饰人或物，既可以作主语也可以作宾语。
- The book that I borrowed from the library is very interesting.- The dog that we adopted is very friendly.3. which: 用于修饰物，作主语或宾语。
- The car which is parked outside is mine.- The bag which she bought is very expensive.4. whose: 用于表示所属关系的人或物，作定语修饰名词。
- The boy whose father is a doctor studies in my school.- The house whose roof was blown off in the storm is being repaired.5. whom/which: 用于介词后，作介词宾语时，宾语是人用whom，宾语是物用which。
- The woman with whom I went to the party is my neighbor.- The bag in which I keep my laptop is black.关系副词：1. where: 用于修饰地点，作定语修饰名词。
- The park where we spent the afternoon is beautiful.- The city where I grew up is very crowded.2. when: 用于修饰时间，作定语修饰名词。
定语从句的语法知识点以下是 6 条关于定语从句的语法知识点：1. 定语从句用来修饰名词或代词呀，就像给它们穿上一件特别的外衣！比如说，“The man who is wearing a blue shirt is my father.”（那个穿着蓝色衬衫的男人是我爸爸），这里“who is wearing a blue shirt”就是定语从句修饰“the man”。
2. 关系代词在定语从句中起关键作用呢！像“that”“which”“who”“whom”“whose”，它们可是连接主句和从句的桥梁哟！比如“She bought the book that I recommended.”（她买了我推荐的那本书）。
3. 定语从句还能分成限制性和非限制性的呢！限制性的就像必需品，不可或缺；非限制性的就像点缀啦！像“He has a sister, who is a doctor.”（他有个姐姐，她是个医生），这里的“who is a doctor”就是非限制性定语从句，起到补充说明的作用。
4. 你知道吗，有时候关系副词也会出现哦！像“when”“where”“why”，它们能表达时间、地点、原因呢！举个例子，“I still remember the day when we met.”（我仍然记得我们见面的那天）。
5. 别以为定语从句只能修饰单个的名词或代词呀，有时候它还能修饰整个句子呢！哎呀，是不是很神奇？“He was late again, which made the teacher angry.”（他又迟到了，这让老师很生气）。
6. 要注意定语从句中的主谓一致问题哟！从句中的动词要和先行词保持一致呢！就像“Those who want to go are here.”（那些想去的人在这里），先行词“those”是复数，所以“want”也用复数形式呀。
总之，定语从句可是英语语法中很重要的一部分呢，掌握了它，会让你的英语更上一层楼！。
定语从句语法知识整理定语从句是英语中常用的表达方式之一，它用来修饰一个名词或代词，从而给出更多关于该名词或代词的信息。
在本文中，我们将对定语从句的语法知识进行整理和总结。
一、定语从句的基本结构定语从句通常由关系代词或关系副词引导，介绍一个与主句中的名词或代词有关的信息。
常见的关系代词有：who、whom、whose、which、that；常见的关系副词有：when、where、why。
定语从句的基本结构如下：关系代词引导的定语从句：- The person who (that) is standing over there is my brother.- I have a friend whose car broke down yesterday.关系副词引导的定语从句：- This is the restaurant where we had dinner last night.- Do you still remember the reason why he left?二、关系代词的使用1. "who"和"that"用来引导修饰人的定语从句，其中"who"可以作为主语或宾语，"that"只能作为宾语。
- The girl who (that) is talking to our teacher is very intelligent.- I have a friend who (that) I can always rely on.2. "whom"和"that"用来引导修饰人的定语从句，其中"whom"只能作为宾语，"that"可以作为主语或宾语。
- The man whom (that) we met yesterday is our new neighbor.- Is there anyone that you want to invite to the party?3. "whose"用来引导修饰人或物的定语从句，表示所属关系。
1.定语从句的定义：用作定语的从句叫定语从句。
2.先行词：被定语从句所修饰的名词或代词。
3.定语从句的位置：紧跟先行词名词或代词之后。
4.引导词引导定语从句的词包括关系代词和关系副词。
1关系代词that/who/whom/which/as2关系副词when/where/why5.引导词的位置位于定语从句之前先行词之后。
【as除外】6.引导词的功能作用1连接先行词和定语从句。
2在定语从句中充当一定的成分关系代词充当主语或宾语关系副词充当状语。
7.定语从句的类型1限定性定语从句主句和定语从句之间无逗号。
①直接由引导词引导定语从句The man who you’re talking to is my friend.②由介词+关系代词whom/which引导The man to whom you’re talking is my friend.I need a pen with which I can write a letter.介词的选用可根据从句中的相关词组确定该介词通常可以放在关系代词之前也可放在从句之尾。
例如The man (who/whom/that) I talked about at the meeting is from Beijing University.The palace (which/that) I often pay a visit to was built in the 17th century.=The palace to which I often pay a visit was built in the 17th century.2非限定性定语从句主句和定语从句之间用逗号隔开。
①直接由引导词引导定语从句。
②由介词+关系代词whom/which引导。
I live in a house far away from the city, in front of which is a big tree.There is an apple tree standing at the gate, on which are many apples. This is the man to whom I gave the book.③由“代词/名词+of+whom/which”或“of which/ whom +名词/代词”(先行词指人用whom,指物用which)引导。
One, some, any, none, all, both, several, many, most, neither, either等词、数词、分数或百分比与of whom或of which连用。
He has five children, two of whom are abroad.(比较He has five children, and two of them are abroad.) We have three books, none of which is/are interesting.(比较We have three books, but none of them is/are interesting.) 除why和that不能引导非限定性定语从句外其余引导词都可以用法同限定性定语从句一样。
但要注意以下区别。
1.在形式上非限定性定语从句与主句有逗号隔开。
2.非限定性定语从句的作用它只是补充说明先行词的情况翻译时可译成两个句子。
The engineer, whose leg was badly hurt, was quickly sent to hospital. 那位工程师被很快送往医院其腿部受了重伤The engineer whose leg was badly hurt was quickly sent to hospital. 那位腿部受了重伤的工程师被很快送往医院3.在非限定性定语从句中任何引导词都不能省略包括引导词在此定语从句中充当宾语在内。
指人做主语时只能用who, 做宾语时用whom; 指物做主语宾语都用which; 关系副词用when或where也不能省略。
The man, ______ is sitting on the chair, is my father.The woman, _______ I met yesterday, is my English teacher.The city, _______ is far away, is very beautiful.He went to America, ______ his parents live.He joined the Army yesterday, ______ I left, too.4.whose引导非限定性定语从句The house, whose window faces south, is mine.The house, of which the window faces south, is mine.二.定语从句中关系代词和关系副词的基本用法。
1.who/that指人是主格在定语从句中代替先行词又作定语从句的主语不能省略。
Do you know the gentleman who/that is sitting there?2.whom/who/that指人是宾格在定语从句中代替先行词又作定语从句的宾语动宾或介宾。
①当作动宾动词后接宾语时关系代词可省略。
Do you know the gentleman (whom/who/that) we met just now?②当作介宾介词后接宾语时介词不提前时关系代词可省略介词提前时关系代词不可省即介词whom(指人时介词后的关系代词只能用whom)。
The man (whom/who/that) I spoke with is my teacher.The man with whom I spoke is my teacher.※注固定的动词短语动词+介词如look for, take care of等不能把动词与介词拆开既介词不能提至引导词前。
She is the right girl (who/whom/that) we are looking for.3.whose: 指人或物是所有格“?的”形式。
Whose+n.一起在定语从句中充当主语、宾语动宾或介宾即先行词的什么东西怎样了whose不能省略。
Whose+n. = the +n. + ofwhich/whom= of which/ whom+ the =n.I didn’t find the desk whose leg was broken. 主语He is the student whose pencil I broke yesterday. 动宾The boss in whose company I work is very kind. 介宾 4.which/that 指物指代先行词且在定语从句中作主语或宾语动宾或介宾。
①当作动宾时关系代词可省略。
②当作介宾时介词不提前时关系代词可省略介词提前时关系代词不可省即介词which(指物时介词后的关系代词只能用which)。
The house which/that was destroyed in the earthquake is weak. The pen (which/that) you found yesterday is mine.The games (that/which) the young men competed in were difficult. The games in which the young men competed were difficult.※注:介词+关系代词即介词+whom/which(先行词指人用whom指物用which)。
※5.as指人或物在定语从句中可作主语宾语表语或状语不能省略。
主要用于“thesame ?as?such ?as?so ?as?as ? as?as follows”固定结构中形式固定此时的引导限定性定语从句。
要用as代替who(m), which, 或that引导定语从句Such people as knew Hill thought he was honest.Such people as Hill knew thought he was honest.My hometown is no longer the same as it was.Here is so big a stone as no one can lift.The child knows as much as grow-ups (know).I’d like to have the same books as are used in your school.He is not such a person as I expected.He will marry as pretty a girl as he can find.※注which和as可引导非限定性定语从句可以指代主句中的一部分或整个句子的内容which和as都可以指代主句中的一部分或整个句子的内容有时可以互换。
因此当as/which指代前面的整个句子或前句中的部分内容作定语从句的主语时谓语用单数Our team lost the game, as/which was reported in the newspaper. She was terrified, as/which I could see from her eyes.He married her, as/which was natural.区别①as引导的非限制性定语从句可以放在主句前面、插在主句中间或放在主句末尾而which引导的非限制性定语从句只能放在主句后面。
He married her, as/which was natural.Mark Twin is a great writer, which/as is known to all.②as引导的从句有“正如”、“正像”之意而which则无此意。
常用句型有as we all know, as is known to all, as everybody can see, as is expected, As is known/ said/ reported/ told/ we all know等。
如As we all know, paper was first made in China.To shut your eyes to facts, as many of you do, is foolish.③主句和从句有因果关系时用which.Our class has won the football match, which made us very happy. Bamboos are hollow, which makes them very light.④从句含否定意义时常用which. She didn’t pass the exam, which we couldn’t expect.She didn’t pass the exam, as we expected.6.when关系副词指时间。
