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定语及定语从句定语及定语从句定语从句（也称关系从句、形容词性从句），是指一类由关系词（英语：relative word）引导的从句,因为这类从句的句法功能多是做定语，以下是店铺收集的定语及定语从句，仅供大家阅读参考!一、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。
定语从句是指在一个句子中作定语的句子，定语从句要放在所修饰的词后。
如：1) The man who lives next to us is a policeman.2) You must do everything that I do.上面两句中的man和everything是定语从句所修饰的词，叫先行词，定语从句放在先行词的后面。
引导定语从句的词有关系代词that, which, who(宾格who, 所有格whose)和关系副词where, when、why关系词常有三个作用：1、引导定语从句2、代替先行词3、在定语从句中担当一个成分.二、定语从句的有关概念所谓定语从句，就是在复合句中起定语作用以修饰主句中的名词或代词的从句。
学习定语从句，首先要弄清两个重要概念——先行词和关系词。
先行词是我们汉语中从来没有听过的一个新概念，它其实指的就是被定语从句所修饰的词。
由于定语从句修饰名词或代词时，定语从句通常是后置的`，所以人们就将放在定语从句前被定语从句修饰的名词或代词叫先行词。
那什么是关系词呢？其实它就是用于引导定语从句的引导词。
事实上，英语中的各类从句，不管性质如何，它们都需要有一个词来“引导”，正如人们给引导状语从句的词语取了个名字叫从属连词一样，人们也给引导定语从句的词语取了个名字，叫它关系词，因为它通常被放在先行词和定语从句之间起连接作用，以表明两者之间的修饰关系，同时它还在定语从句中充当一定的句子成分。
定语从句和同位语从句的区别含义定语从句和同位语从句都是从句，它们在句子中都充当特定的语法角色，但它们的作用和位置略有不同。
定语从句：定语从句用来对一个名词或代词进行限定或修饰，通常在主句中，与被修饰的名词或代词关联紧密，用来进一步说明或限定其含义。
定语从句通常由关系词（如who, whom, whose, which, that等）引导，并且这个从句可以被省略。
例子：The book that is on the table is mine.（在桌子上的那本书是我的。
）同位语从句：同位语从句是一种从句，用来对另一个名词、代词或名词性词组所表达的概念进行解释、说明或补充。
同位语从句与前面的名词或词组同位，并且通常用来说明或解释这个名词或词组的含义。
同位语从句通常用连接词（如that, whether, if等）引导。
例子：The fact that she passed the exam made her parents proud.（她通过考试这个事实让她的父母感到骄傲。
）在结构上，定语从句和同位语从句的主要区别在于其与名词或代词的关系和所起的作用。
定语从句用来对名词进行修饰或限定，而同位语从句则用来对名词所表示的概念进行解释或补充。
练习:1.The idea _______ we discussed last week was quite innovative.2.The girl _______ won the first prize is my best friend.3.The fact _______ he failed the exam surprised everyone.4.The book _______ I borrowed from the library is quite interesting.5.The belief _______ you mentioned is widely held in many cultures.6.The woman _______ you met yesterday is my sister.7.The car _______ was parked outside the house belongs to my neighbor.8.The movie _______ we watched last night was really boring.9.The house _______ is next to the park is for sale.10.The man _______ is wearing a blue jacket is my brother.11.The book _______ you remended is excellent.12.The teacher _______ is standing at the front of the classroom is Mrs. Smith.13.The puter _______ he bought last week is already outdated.14.The girl _______ won the singing petition is my friend.15.The house _______ we visited last week has a beautiful garden.16.The dog _______ barks loudly belongs to my neighbor.17.The movie _______ we watched last night was quite entertaining.18.The man _______ lives next door is a doctor.19.The car _______ was parked in front of the building was stolen.20.The restaurant _______ serves Italian food is very popular.21.The project _______ we worked on together was a success.22.The painting _______ is hanging on the wall is by Picasso.23.The cat _______ is sitting on the windowsill is mine.24.The university _______ she attended is known for its research programs.25.The bike _______ he rides to work needs repairs.26.The pany _______ he works for is based in New York.27.The song _______ you sang at the party was beautiful.28.The team _______ won the championship celebrated all night.29.The building _______ we live in is undergoing renovations.30.The restaurant _______ we ate at last night had delicious food.31.The boy _______ won the math petition is very intelligent.32.The city _______ I grew up in is quite small.33.The cake _______ my mom baked for my birthday was delicious.34.The project _______ we have been working on for months is finally finished.35.The website _______ you remended has useful information.36.The doctor _______ examined me was very kind.37.The movie _______ we saw last weekend was really scary.38.The book _______ she lent me is on the table.39.The pany _______ offered me a job has a great reputation.40.The tree _______ shades our backyard is starting to lose its leaves.41.The hope _______ the situation would improve kept them going.42.The discovery _______ there might be life on Mars generated excitement.43.The assumption _______ they were responsible for the mess angered them.44.The issue is _______ we can afford to buy a new car.45.We need to determine _______ the event will be held indoors or outdoors.46.The debate centers on _______ we should invest in renewable energy.47.The concern is _______ the event will be canceled due to the weather.48.The book _______ I borrowed from the library is on the table.49.The news _______ she passed the exam brought joy to her family.50.The movie _______ we watched last night was really interesting.51.The fact _______ she was promoted surprised everyone.52.The car _______ he drives is very old.53.The woman _______ won the award is a famous actress.54.The idea _______ he suggested was brilliant.55.The hope _______ the situation would improve kept them going.56.The belief _______ he could achieve his goals inspired others.57.The question _______ we need to address is how to reduce costs.58.I'm not sure _______ we will be able to finish the project on time.59.We are considering _______ to take legal action.60.The bag _____ is on the table is Amy’s.答案：1.that2.who3.that4.that5.that6.whom/that8.that9.that/which10.who/that11.that/which12.who/that13.that14.who/that15.that/which16.that/which17.that/which18.who/that19.that/which20.that/which21.that/which22.that/which23.that/which24.that/which25.that/which26.that/which27.that/which28.that/which29.that/which30.that/which31.who/that32.that/which33.that/which34.that/which35.that/which36.who/that37.that/which38.that/which39.that/which40.that/which41.that42.that43.that44.whether45.whether46.if47.If48.that/which49.that50.that/which52.that/which53.who/that54.that55.that56.that57.that58.if59.whether60.that。
英语中为何有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。
以下内容是为您精心的英语中为何有定语从句，欢迎参考！英语中为何有定语从句一定语从句(Attributive Clauses)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。
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 prosperity which / that had never been seen before appears in the countryside. 农村出现了前所未有的繁荣。
定语从句Attributive Clauses一、定语的定义：定语用来限定、修饰名词或代词，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、动名词表示的）。
汉语中常用“……的”表示。
主要由形容词担任，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、从句作定语时则放在所修饰的词之后，作后置定语。
二、1.先行词的定义：被定语从句修饰的名词、代词称为先行词。
如“The man”、“The book”。
2.先行词的位置：先行词之后。
三、关系代词1.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词保持一致。
2.关系词常有3个作用：①连接作用，引导定语从句。
②代替先行词。
③在定语从句中担当一个成分。
注：关系代词有主语、宾语之分。
一般whom作为宾语。
关系代词在从句中作主语，宾语，表语，定语等，关系副词在从句中作地点状语（where）时间状语（when），原因状语（why）。
四、例句1.who, whom, that这些词代替指人，“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? 他是那个想见你的男人吗？（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。
（whom/that在从句中作宾语）（3）The man whom you spoke to just now is our English teacher. 你刚刚说话的那个男人是我们的英语老师。
2,Which 用来指人或物用作主语、宾语，作宾语时可以省略，例如：（1）Prosperity which / that had never appeared appears in the country. 农村出现了前所未有的繁荣。
定语从句作用定语从句是在英语语法中经常使用的一种句子结构，用于修饰名词或代词。
它可以用来详细描述或限制这个名词或代词的含义，增加语句的信息量和表达的准确度。
定语从句的作用主要有以下几个方面：1. 限制性定语从句：通过定语从句来限制或者强调名词的范围。
例如：“The book that I bought is interesting.”（我买的那本书很有趣。
）这个定语从句“that I bought”限制了名词“book”的范围，表明只是我买的那本书有趣。
2. 描述性定语从句：通过定语从句来对名词或代词进行描述，增加信息量。
例如：“The girl who is standing over there is my friend.”（站在那边的女孩是我的朋友。
）这个定语从句“whois standing over there”描述了名词“girl”，使得句子更加具体明确。
3. 非限制性定语从句：通过定语从句对名词或代词进行进一步解释或补充说明。
例如：“My sister, who is a doctor, is comingto visit me.”（我姐姐，一个医生，要来看我。
）这个定语从句“who is a doctor”对名词“sister”进行了进一步的解释和补充说明。
4. 强调定语从句：通过定语从句来强调名词或代词。
例如：“It is Susan who broke the vase.”（打破花瓶的是苏珊。
）这个定语从句“who broke the vase”强调了名词“Susan”。
定语从句在英语中是非常常见的，它可以增加句子的表达能力和准确度。
通过使用定语从句，我们可以给名词或代词添加更多的信息，使得句子更加具体和明确。
定语从句的引导词有关系代词和关系副词，如which, who, whom, whose, that, when, where等。
我们需要根据句子的结构和含义选择适当的引导词，并确保主从句之间的逻辑关系和语法结构的一致性。
定语从句 which that定语从句是一个修饰名词或代词的从句，用来进一步说明或限制其含义。
定语从句通常由关系代词或关系副词引导，其中关系代词有which, that, who, whom, whose等，关系副词有when, where, why等。
下面列举了一些定语从句的例子：1. The book which I bought yesterday is very interesting.这本书是我昨天买的，非常有趣。
2. The car that is parked in front of the house belongs to my neighbor.停在房子前面的车是我邻居的。
3. The girl who is wearing a red dress is my sister.穿着红裙子的女孩是我妹妹。
4. The restaurant where we had dinner last night is famous for its seafood.我们昨晚吃饭的那家餐厅以海鲜而闻名。
5. The reason why I couldn't come to the party is that I was sick.我没能来参加派对的原因是我生病了。
6. The movie that we watched last night was really scary.我们昨晚看的电影真的很恐怖。
7. The professor whose research I am interested in will give a lecture tomorrow.我对他的研究很感兴趣的那位教授明天会讲课。
8. The city where I grew up is very different from how it was before.我长大的那个城市与以前完全不一样了。
9. The laptop that I bought online was delivered today.我在网上买的那台笔记本电脑今天送到了。
定语从句和名词性从句定语从句定语从句（Attributive Clauses）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。
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 prosperity which / that had never been seen before appears in the countryside. 农村出现了前所未有的繁荣。
（which / that在句中作宾语）The package (which / that) you are carrying is about to come unwrapped. 你拿的包快散了。
定语从句用法1.基本概念：定语从句：在复合句中作定语，修饰名词或者代词的从句叫定语从句。
先行词：被定语从句所修饰的名词或者代词叫先行词。
一般情况下，定语从句紧跟先行词。
但也有各种原因定语从句与先行词被分割开的现象。
关系代词：who，whom，which，that，whose，as。
关系代词在定语从句中充当主语，宾语，表语，和定语。
关系副词：when，where，why，在定语从句中充当状语。
关系代词的基本用法：关系代词先行词从句成分例句备注who 人主语、宾语Do you know the man who is talking with yourmother? Whom，which，that 在从句中作宾语时，常常可以省略，但介词提前时后面的关系代词不能省略，也不能用that。
whom 人宾语The boy (whom)she loved died in the war.whose 人，物定语I like those books whose topics are abouthistory.That 人，物主语、宾语A plane is a machine that can fly.which 人、物主语、宾语The book （which）I gave you was worth 10yuan.as 人，物主语，宾语This is the same pen as I lost yesterday只用that，不用which的情况：1.先行词是形容词最高级或它的前面有形容词最高级修饰时。
This is the best way that has been used against pollution.2.先行词是序数词，或它前面有一个序数词修饰。
It is the first American movie of this kind that I’ve ever seen.3.先行词是all, much , little, something , everything , anything , nothing , none等不定代词。
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。
定语从句的含义
想要学好定语从句，需要了解定语从句的含义，你对定语从句掌握了多少呢。
以下是店铺为大家整理的定语从句的含义，仅供参考，希望能够帮助大家。
一、定语从句的概念
定语从句是指在复合句中，修饰限定某一名词或代词的从句。
例如：You must buy me the house which is near Xiangshan.
上面例句中的the house就是后面定语从句所修饰或限定的词，叫先行词，定语从句放在先行词的后面。
二、关系词（连接词）
引导定语从句的关系词有关系代词：that, which, who (宾格whom, 所有格whose) 和关系副词where, when, why。
关系词放在先行词和定语从句之间，起连接作用，同时还做定语从句的一个成分。
1．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that、which、who、whom、whose，其中whom引导的是宾格，whose引导的是所有格。
2．that与which的用法区分
1）只能用that，不能用which作为定语从句关系代词的情况
a）当先行词由不定代词anything, nothing, the one, all, much, few, any, little等代替时，关系代词只能用that而不能用which 。
例如：There is nothing that I can do
b）先行词有the only, the very, the same, the last修饰时
例如：The last place that I visited was the hospital.
c）先行词为序数词、数词、形容词最高级。
例如：This is the first composition that he has written in English.
d）先行词既有人，又有物时
例如：He talked about the teachers and schools that he had visited.
2）只用which不用that的情况
a）引导非限定性定语从句时
例如：The tree, which is four hundred years old, is very famous here.
b）介词后用which
例如：We depend on the land from which we get our food.
3．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）先行词是表示地点名词时（country, school, room…），而关系词代替先行词在定语从句中充当地点状语，一般用where引导定语从句。
也可以用介词+which的结构。
值得留意的是which前的.介词选择是根据先行词与介词的搭配关系而定。
例如：He wants to find the place in which (=where) he lived forty years ago.
2）先行词是表示时间名词时，而关系词代替先行词在定语从句中充当时间状语，一般用when引导定语从句。
也可以用介词+which的结构。
值得留意的是when前的介词选择是根据先行词与介词的搭配关系而定。
例如：I cannot forget the first day on which (=when) my family moved into the city.
3）先行词是the reason，而关系词代替先行词在定语从句中充当原因状语，一般用why引导定语从句。
也可以用for + which的结构。
例如：Is this the reason for which (why) he refused our offer?
但是这里要指出的是，假如介词和Which搭配在一起并不表示以上三种意思，则我们只能留存介词+Which的形式。
如I know English in which I wrote the love letter.
4．判定关系代词与关系副词
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，就必需要求用关系代词；而不及物动词则要求
用关系副词。
方法二：正确判定先行词在定语从句中的成分（主、谓、宾、定、状），也能准确选择出关系代词/ 关系副词。
关系词的选择依据在从句中所做的成分，先行词在从句中做主、定、宾语时，选择关系代词（who,whom,that, which, whose）；先行词在从句中做状语时，应选择关系副词（where 地点状语，when 时间状语，why 原因状语）。
5．限定性从句和非限定性从句
1）定语从句有限制性和非限制性两种。
限制性定语从句是先行词不可缺少的部门，去掉它主句意思往往不明确；非限制性定语从句是先行词的附加说明，去掉了也不会影响主句的意思，它与主句之间通常用逗号分开。
例如：
All the Greeks who are philosophers are very clever. （限制性）
All the Greeks, who are philosophers, are very clever. (非限制性)
2）非限制性定语从句还能将整个主句作为先行词, 对其进行润饰, 这时从句谓语动词要用第三人称单数。
例如：The traffic of Beijing is quite bad, which is known to everyone.
6．定语从句的省略
(1) 关系代词充当从句宾语
我们前面说到连接词在定语从句中充当一个成分，有可能是主语、有可能是宾语，我相信大家肯定还记得，这里我们要告诉大家，当这些连接词充当的是宾语时，可以省略。
例如：
1. The book (that/which) we bought last year is now very popular.
2. We can see the boys (who/whom/that) the teacher is talking with are quite happy.
(2) 关系代词充当从句主语
当关系代词充当从句主语时，也可以省略，但是省略后的从句要
发生形式的变化，原从句若为主动语态，后面的动词结构要变成分词ing形式，原从句若为被动语态，后面的动词结构直接为过去动词结构。
这种结构在英语语法中称为分词作定语。
例如：
The novel which was given by the professor mainly discusses the development of Chinese economy.
The novel given by the professor mainly discusses the development of Chinese economy.
The novel which mainly discusses the development of Chinese economy was given by the professor.
The novel mainly discussing the development of Chinese economy was given by the professor.
SP: (1) why的先行词reason或可用that 指代的名词也是定语从句的原因状语时，关系代词或关系副词可以省略。
例如：
1. That is the reason (for which/why) you dislike it.
2. I wonder the reason (why/for which) he changed his mind.
(2) 表示方式的先行词way，其后的关系代词可用that也可省略，例如：
1. Everyone does not like the way (that) he talks.
2. Do you know the way (that) the teacher treated his students.
【定语从句的含义】。
