定语从句的基本用法1
定语从句的用法归纳总结
定语从句的用法归纳总结定语从句又称定语性从句，是指用来修饰名词或代词的句子，在句中作定语，它往往位于名词或代词之前，用来限定或修饰名词或代词。
可以说，学习定语从句是英语学习中极其重要的一块，尤其是成熟的句子架构中，都会出现有定语从句的句子，因此，要掌握定语从句的用法，从而构成完整的句子。
一、定语从句的构成定语从句有两个必不可少的成分，即先行词和关联词。
先行词又称定语从句的主句，是指在句子中被修饰的名词或代词，它决定定语从句的性质，是从句的“主人”；关联词又称连接词，用来把定语从句和先行词连接起来，因此它是从句的“准入证”。
常用的关联词有that、which、who、whom等，不同的关联词有其不同的用法。
1. 介词+which/whom/that引导的定语从句这种定语从句是由介词构成的，关联词一般由that、which、whom 组成，它们都可以引导定语从句，但它们之间拥有一定的区别，即that用于物、which用于物、whom用于人，可以有效地避免语法错误。
例如：The room in which we lived was very small.The man whom I saw was my uncle.2. 不定式引导的定语从句不定式有可能引导定语从句，此时，不定式是关联词，引导定语从句要用主动形式，相当于一个定语。
例如：The books to read were very interesting.The people to talk were my classmates.3.词不定式的定语从句这种定语从句的关联词是动词不定式，引导定语从句要用完成式，相当于一个定语。
例如：The house built two years ago was very beautiful.The plan worked out was very effective.二、定语从句的用法1.语从句放在它所修饰的名词或代词之前定语从句往往位于名词或代词之前，放在它所修饰的名词或代词之前，它可以位于名词之前也可以位于名词之后，但在一般情况下，置于定语从句之前的词一般为不定代词，如：all，something, everything, anything等，它可以作为定语从句的先行词，而定语从句放在它之后。
英语中定语从句的用法
定语从句是一种英语语法结构，用于修饰名词或代词，说明其性质或特征。
以下是定语从句的主要用法：
1. 引导词：定语从句由引导词引导，常用的引导词有that、which、who、whose、whom、where、why等。
2. 关系词：关系词在定语从句中作为替代词，代表被修饰的名词或代词。
关系词分为关系代词和关系副词。
关系代词有who、whom、whose、that、which等，关系副词有where、why、how等。
3. 限定性定语从句和非限定性定语从句：限定性定语从句对所修饰的名词或代词进行限定，使句子意思更加明确。
而非限定性定语从句则是对所修饰的名词或代词作进一步的描述或解释，通常用逗号与主句隔开。
4. 介词+关系代词：在定语从句中，介词+关系代词的结构常常引导定语从句。
常用的介词有in、on、by、to等。
5. 省略引导词：在口语和书面语中，有时可以省略引导词。
但在正式文体中，通常需要保留引导词。
总的来说，定语从句是英语语法中的一个重要组成部分，它可以增强句子的表达效果和准确性。
在使用定语从句时，需要注意语法规则和表达习惯，以确保句子通顺、流畅。
定语从句的最基本用法
注意：whom前 面没有介词时， 可以省略。
(5)Whose的用法
关系代词whose表示“……的”，是关系代词 who、which的所有格，因此既可指人，也可指物。 在从句中，whose作定语修饰名词，被修饰词可以 是从句的主语、宾语或介词宾语。 He is the boy whose pen I borrowed yesterday. They cleaned the house whose windows face south. The gentleman, with whose daughter I worked, looked down upon women.
关系代词的实质
Join the following sentences:
The girl is Mary. We saw her yesterday.
关系代词的实质
Join the following sentences:
The girl is Mary. We saw her yesterday.
四、关系词的具体用法
① which 指物，在定语从句中作主语或宾 语。作宾语时，可省略。 These are the trees which were planted last year. This recorder （which） he is using is made in Japan.
②that 指人或物，在定语从句中作主语或宾 语。作宾语时，可省略。 A plane is a machine that can fly. He is the man (that) I told you about.
二、引导非限制性定语从句 ⑴ as引导非限制性定语从句，指代整个主句内容，从句 可置于句首，句中或句尾 1． As everyone knows ,China is a beautiful country with a long history . 每个人都知道，中国是一个有着悠久历史的美丽国家。 2． The earth , as we know , moves round the sun . 地球，我们都知道，围着太阳转。 3． Tom works hard and is willing to help others, as we all know. 汤母工作努力，并且乐于助人，这一点我们都知道。
英语中的定语从句用法
英语中的定语从句用法定语从句是英语中非常重要的一种句子结构，它能够为主句提供更多的信息，使句子更加丰富和准确。
在学习和运用定语从句时，我们需要掌握一些基本的用法和注意事项。
一、定语从句的引导词定语从句通常由关系代词或关系副词引导。
关系代词包括that, which, who, whom, whose等，而关系副词则包括where, when, why等。
在选择引导词时，我们需要根据引导词在定语从句中的作用来决定。
1. 当引导词在定语从句中作主语时，我们可以使用关系代词who, which或that。
例如：The girl who is standing over there is my sister.（那个站在那边的女孩是我妹妹。
）2. 当引导词在定语从句中作宾语时，我们可以使用关系代词whom, which或that。
例如：I have a friend whom I can always rely on.（我有一个朋友，我总是可以依靠他。
）3. 当引导词在定语从句中作介词的宾语时，我们可以使用关系代词whom, which或关系副词where, when等。
例如：This is the hotel where we stayed last summer.（这是我们去年夏天住过的酒店。
）二、定语从句的位置定语从句可以出现在主句的前面或后面，具体位置取决于定语从句的内容和语境。
当定语从句的内容对于理解主句非常重要时，我们通常将其放在主句的后面。
例如：I bought a book that was recommended by my teacher.（我买了一本被我的老师推荐的书。
）另外，当定语从句的内容对于理解主句并不是非常重要时，我们通常将其放在主句的前面，并用逗号与主句隔开。
例如：The weather being fine, we decided to go for a picnic.（天气很好，我们决定去野餐。
定语从句的用法
定语从句的用法一、定语从句1、定义定语从句（Attributive Clause）是一个附加于名词或代词之上的句子，它用来形容前面的名词或代词。
它的作用是限定或说明某个名词或代词所指的人或事物，是一种非常重要的句子结构。
2、关系词在定语从句中，关系词（Relative Pronoun）的作用是连接主句和定语从句，并将定语从句中的成分与主句中的某个成分联系起来。
一般而言，我们常用关系代词who, whom, whose, which和that来引出定语从句。
关系代词who 指人whom 指人whose 指人或物which 指物that 指人、物或事3、定语从句的构成（1）定语从句通常由关系代词在定语从句中引出关系，并在从句中担任某一成份的角色；（2）定语从句的谓语动词也可由一些连接词（link verb）连接，如be, feel, look, seem, smell, taste, remain，常用于定语从句中；（3）定语从句中如果省略结构，就不能用who/whom来引导定语从句；（4）定语从句中由关系副词引导而不是关系代词。
4、定语从句的用法（1）定语从句可以用来限定、修饰某个名词或代词，例如：The movie《Titanic》, which was released in1997, is still popular today.（《泰坦尼克号》，1997年上映，至今仍颇受欢迎。
）（2）定语从句可以用来替代某个句子中的某个成分，如：My sister, who lives in Beijing, is a doctor.（我在北京居住的姐姐是一位医生。
）（3）定语从句可以用来表示地点，例如：She lives in a small village where there are few people.（她住在一个人很少的小村庄里。
）（4）定语从句可以用来表示时间，例如：He was born in 1992 when the economy began to boom.（他出生在1992年，那时经济开始繁荣。
定语从句用法总结
定语从句用法总结定语从句是英语中最常用的从句之一，用于给名词或代词添加更多的信息。
它通常由关系代词或关系副词引导，并作为句子的一部分。
在写作和口语中，定语从句非常重要，因为它可以帮助我们提供详细的描述和限定名词的范围。
接下来，我们将总结定语从句的用法。
一、关系代词的用法1. Who/That: 引导定语从句，修饰人。
例如：The woman who/that is standing by the door is my sister.（站在门旁边的那个女人是我的姐姐）2. Whom/That: 引导定语从句，作为宾语，修饰人。
例如：The man whom/that I met yesterday is a doctor.（我昨天见到的那个人是个医生）3. Which/That: 引导定语从句，修饰事物。
例如：The book which/that is on the table belongs to me.（在桌子上的那本书是我的）4. Whose: 引导定语从句，表示所属关系。
例如：The girl whose parents are teachers is very smart.（父母都是老师的那个女孩非常聪明）5. Whichever/Whatever/Whoever: 引导定语从句，表示任意。
例如：Choose whichever book you like.（选择你喜欢的任何一本书）二、关系副词的用法1. Where: 引导定语从句，表示地点。
例如：The city where he was born is very beautiful.（他出生的城市非常美丽）2. When: 引导定语从句，表示时间。
例如：The day when we met was unforgettable.（我们相遇的那一天是难忘的）3. Why: 引导定语从句，表示原因。
例如：I don't understand the reason why he left.（我不明白他离开的原因）三、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，形成一个完整的句子。
定语从句用法
定语从句用法定语从句是英语中常用的修饰句子成分的一种从句。
它通过引导词来连接主句和从句，一般用来修饰名词或代词，起到进一步说明、限定或描述的作用。
定语从句在英语中非常常见，并且灵活运用它可以提高语言表达的准确性和流畅性。
本文将介绍定语从句的基本用法以及注意事项，并通过例句加以说明。
一、定语从句的基本结构定语从句的基本结构是：关系代词/关系副词 + 句子。
关系代词有who, whom, whose, which, that等；关系副词有where, when, why等。
关系代词在定语从句中充当主语、宾语或所有格，关系副词在定语从句中充当地点状语、时间状语或原因状语。
例句1：I have a friend who teaches English in a university.例句2：The book that you lent me is very interesting.例句3：This is the reason why he failed the exam.二、定语从句的引导词选择1. 关系代词的选择（1）指人：who, whom, whose, that（2）指物：which, that（3）指人或物：who, whom, whose, which, that2. 关系副词的选择（1）地点：where（2）时间：when（3）原因：why三、定语从句的位置定语从句通常紧跟被修饰的名词或代词，但也可以放在其他位置，以使句子更连贯流畅。
例句4：The boy who is wearing a red shirt is my brother.例句5：The movie, which was directed by Steven Spielberg, won several awards.四、定语从句的省略1. 关系代词的省略当关系代词在定语从句中作宾语且在从句中不作成分时，可以省略。
例句6：Is there anyone (that/who) wants to join the party?2. be动词的省略当主句和从句中有相同的be动词时，从句中的be动词可以省略。
定语从句的用法
定语从句的用法定语从句，一个简单句跟在一名词或代词后(先行词)进行修饰限定，所以叫做定语从句。
在主句中充当定语成分。
那么你知道定语从句的用法吗?下面跟着店铺一起来学习一下，希望对大家的学习有所帮助!一、基本概念：在复合句中，修饰某一名词或代词的从句叫定语从句。
如：Do you know the man who spoke at the meeting just now?That is the house where he lived ten years ago.定语从句所修饰的词叫先行词;定语从句一般用关系代词或关系副词来引导，关系词放在先行词与定语从句之间起连接作用，同时又作从句中的一个成分。
引导定语从句的关系代词有：that, who, whom, whose, which;关系副词有：when, where, why.二、关系词的用法：(一)关系代词的用法：1. 作主语用who, which和that, 如：He is the man who/that lives next door.The train which/that has just left is for Shenzhen.2. 作宾语用whom, who, which, that, 如：The man (whom/who/that) we have just seen is a famous writer.Where is the book (which/that) I bought last week?注：在非正式文体中，用于指人的关系代词who whom, that 通常可以省略，但在正式文体中通常用whom, 不可省略;用于指物的关系代词which和that 在非正式文体中也通常省略，但在正式文体中一般不省略。
3. 作定语用whose, 如：(a) He is the man whose car was stolen last week.(b) It was a meeting whose importance I did not realize atthat time.注：“whose +名词中心词”这一结构在定语从句中既能作主语(如上a句)，又能作宾语(如上b句)。
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A good studentA developing countryA developed countryA 5-star friendA man named ChuckA language widely used定语从句：修饰某一名词或代词的主谓结构(完整的基本句子结构-----五种句型)。
↓↓（主句之中）先行词关系词+其它成分↓在定语从句中必须担当一个成分。
↓定语从句中缺啥就补啥定语从句(The Attributive Clause)((二)关系代词的作用1. 关系代词：用来连接定语从句，并在从句中代表先行词的代词。
先行词是物：which that 先行词是人：who that※由who, whom, whose引导的定语从句。
这类定语从句中who用作主语，whom作宾语，whose作定语。
e.g. This is the man who helped me. The doctor (whom) you are looking for is in the room.Do you know the man whose name is Wang Yu?※在定语从句中，若先行词指人，其关系代词可用who, whom, 也可用that。
e.g. The girl who/that is speaking at the meeting is our monitor.The boy (who/whom/that) you saw just now is my brother.3. 关系代词的具体用法及作用1).who指人，在从句中做主语。
如：The boys who are playing football are from Class One. Yesterday I helped an old man who lost his way.2). whom指人，在定语从句中充当宾语，常可省略。
如：Mr. Liu is the person (whom) you talked about on the bus. Mr. Ling is just the boy whom I want to see.注意：关系代词whom在口语和非正式语体中常用who代替，可省略。
如：The man who/whom you met just now is my friend.3). which指物，在定语从句中做主语或宾语，做宾语时可省略如：Football is a game which is liked by most boys. This is the pen (which) he bought yesterday.4). that指人时，相当于who 或whom；指物时，相当于which。
在宾语从句中做主语或宾语，做宾语时可省。
如：The number of the people that/who come to visit the city each year rises one million.Where is the man that/whom I saw this morning?5). whose通常指人，也可指物，在定语从句中做定语如：He has a friend whose father is a doctor. I once lived in a house whose roof has fallen in.The girl is my daughter. / Her work got the first prize. →The girl whose work got the first prize is my daughter.Do you know anyone? / His family is in Xi‟an. →The book is not mine. / The cover of it is red.I live in the room. / The windows of it face south. → The chair has been repaired. / The leg of it was broken.Whose引导的定语从句应注意以下几点：①whose引导定语从句，其后应紧跟名词，构成名词短语。
如：That‟s the child whose father is an engineer.② whose引导定语从句，其先行词不仅可以指人，还可以指物。
如：Mr King, whose legs were badly hurt, was quickly hurt, was quickly taken to hospital.I saw a tree whose leaves were black with disease.③ whose在定语从句中与它所修饰的名词一起可作介词的宾语，可以与介词放在先行词与从句之间。
如：The boss in whose department Mr King worked had heard about the accident.Tom, on whose bike I went to school is a friend of mine.④whose的先行词指物时, 可用of which代替, 但词序不同，即whose+名词=the +名词+of which如：He lives in the room whose window( the window of which) faces south.The classroom whose door is broken will soon be repaired.the door of whichThe classroom the door of which is broken will soon be repaired.Do you like the book whose cover is yellow? Do you like the book the color of which is yellow?(三)在下列情况下只用that，不用which①先行词是all, everything, nothing, anything, little, much, the one等不定代词时，something两者均可。
如：There is nothing (that) I can do. I mean the one that was brought yesterday.Is there anything that I can do for you?②先行词被all, any, every, no, some, little, much，few，one of 等词修饰时，如：I have read all the books (that) you gave me. You may take home any of these books that you like.③先行词被序数词first, last, next等或形容词最高级修饰时，如：The first thing that we should do is to help him. This is the best novel (that) I have ever read.She is the most careful girl that I‟ve ever known.④先行词被the only, the very(正是,恰是), the same, the last修饰时，如：The white flower is the only one (that) I really like. This is the very book (that) I want to find.The last place (that) we visited was the hospital. This is the same watch that I lost yesterday.That‟s the very tool that we are looking for.⑤当先行词有两个或两个以上时,既有人又有物,定语从句用that 引导(that既可指人也可指物)如：He talked about the teachers and schools that he had visited.They talked about the things and friends that they could remember.⑥当主句是以who，which或what开头的特殊疑问句时。
如：Who is the man that is reading the newspaper over there? Which of us that knows anything does not know this?Who is the man that is standing over there? Which is the tool that you are looking for?What did you hear that made you so angry?⑦当先行词是系动词b e后面的表语或关系词本身是从句的表语时如：China isn‟t the country that she used to be 50 years a go. He is no longer the man that he used to be.It‟s a book that will help you a great deal.The village is no longer the one that it used to be.⑧当主句以There be…结构开头时，或关系代词在there be…结构中作实际主语，且先行词为物如：There is a seat in the corner that is still free. There are two tickets of the film that are for you.⑨当先行词是基数词时如：Y esterday I caught two fish and put them in a basin of water. Now you can see the two that are still alive. (四). 在下列情况下只用who(m)，而不用that：①关系代词在从句中作主语时，多用who.如：Do you know the man who spoke just now? The doctor who treated me was very experienced.②当先行词是one, ones, any, few, all,anyone, anybody, someone, somebody, everyone, everybody等词时。