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高中英语定语从句详细讲解定语从句基本概念在复合句中，修饰名词或代词的从句叫定语从句。
引导定语从句的词叫关系词。
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。
2 定语从句的关系词引导定语从句的关系词有关系代词和关系副词。
常见的关系代词包括that ，which ，who （宾格whom，所有格whose ），as 等。
关系副词包括where ，when ，why 等。
关系代词和关系副词放在先行词及定语从句之间起连接作用，同时又作定语从句的重要成分。
3 定语从句的分类根据定语从句与先行词的关系，定语从句可分为限制性定语从句及非限制性定语从句。
1. 限制性定语从句紧跟先行词，主句与从句不用逗号分开，从句不可省去。
例如：Any man that / who has a sense of duty won' t do such a thing.任何有责任感的人都不会做这样的事。
2. 非限制性定语从句主句与从句之间有逗号分开，起补充说明作用，如省去，意思仍完整。
例如：The house,which we bought last month,is very nice. 这幢房子很漂亮, 是我们上个月买的.注意：非限定性定语从句中不能使用关系代词that 。
4 关系代词的用法that 既可以用于指人，也可以用于指物。
在定语从句中作主语、宾语或表语，作宾语可省略。
例如：Mary likes music that is quiet and gentle.玛丽喜欢轻柔的音乐。
（that 作主语）The coat （that ）I put on the desk is blue.我放在桌子上的那件外套是蓝色的。
（that 作宾语）which 用于指物，在句中作主语、宾语或表语，作宾语可省略。
例如：The building which stands near the train station is a supermarket. 位于火车站附近的那座大楼是一家超市。
定语从句一.关系代词：1、who, whom, that三.辨析限制性与非限制性定语从句：1.China, which was founded in 1949, is becoming more and more powerful.2.The teacher told me that Tom was the only person that I could depend on. 。
3.China is a country which has a long history.4.His mother, who loves him very much, is strict with him.5.In the street I saw a man who was from Africa.st summer I visited the People’s Great Hall, in which many important meetings are held every year.四.限制性定语从句中只能用that 引导定语从句的情况1．当先行词是everything, anything, nothing ,something , all, none, few, little, some等不定代词时，或当先行词受every, any, all, some, no, little, few, much等代词修饰时。
如：There seems to be nothing that is impossible to him in the world.All that can be done has been done.He stayed in the library and looked up any information that they needed. 。
注意：当先行词指人时，偶尔也可用关系代词who，如：Any man that / who has a sense of duty won’t do such a thing.2．当先行词被序数词修饰时。
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。
定语从句讲解一．定语从句1.注意英汉差异：汉语的定语无论多长都放在被修饰词的前面，而英语中的定语则不然，是一个词时，放在被修饰词的前面，如：①.a beautiful girl ②.a lovely boy是两个以上的词组、短语或从句则放在被修饰词的后面，如：③.She is the girl in red. 她就是穿红衣的女孩。
④.The lady carried a bag full of money. 那位女士背了个装满钱的包。
⑤.He is the man who you are looking for. 她就是你在找的人。
2.分清主句与从句，看究竟哪个句子缺少成分。
如上面第5：主句：He is the man从句：who you are looking for在从句中，looking for 的宾语是the man.因此选用关系代词 who(whom)放置于句首，便是定语从句。
3.从句中做宾语的关系代词可以省略，故第5题可以写成：He is the man you are looking for.二．定语从句（从句部分）1、功能：相当于形容词，修饰名词或代词，在句中作定语2、位置：定语从句置于被修饰词之后Those who are willing to attend the party, sign here please.3、先行词：被定语从句修饰的词称为先行词（1）先行词一般是名词和不定代词，如:some-, any-, every-和no与-boy, -thing的合成词；或all、none、any、some、that、those等代词。
数词也可以作先行词，人称代词也同样可作先行词。
（2）先行词与关系词是等量关系。
必须注意两点：①先行词在从句中作主语时，从句谓语动词的数由先行词而定。
This is the place which is worth visiting.②关系词在从句句子中充当了成分，其意思就是先行词的意义，所以在从句中不能重复其意。
限制性定语从句和非限制性定语从句：：梁晓概念引入：He is a person who never gives up. 他是个永远不服输的人。
I found him in the woods, where has a well-known tree.(我是在树林里找到他的，那里有一棵很有名的树。
)Our guide,(who was a Frenchman, ) was an excellent cook.我们的导游是个很优秀的厨师，他是个法国人She was not on the train which arrived just now。
她没在刚刚到达的那辆车上语法点拨什么是定语从句？修饰主语、宾语、表语的句子就叫做定语从句。
引导定语从句的关系词有：关系代词：who, whom, whose, which, that关系副词：when, where, why我们把下面两个句子组合成一个复合句：1. This is our school. It is beautiful.→This is our school which is beautiful.2. This is our school. We study in our school.→This is our school which we study in.→This is our school in which we study.→This is our school where we study.3. Do you know the room? It is made of amber.→Do you know the room which is made of amber?4. I have read the newspaper. It carries the important news.→I have read the newspaper which carries the important news.从上述定语从句的组合我们可以看出：先行词和关系词的关系：关系代词实际上是先行词的复指；关系词whose 实际上是先行词的所有格。
Week 2 定语从句1一、课文内容填空（M1U2）1.Mom and Dad arrive back from vacation a day _________(early) than __________(expect).2.Eric runs in after it, __________(follow) by a big dog, __________(walk) very slowly.3.Mom! Dad! You’re back early! (Looking around room, sounding _________(fright) )4.The room is in a mess, ________ pizza boxes on the floor and dirty dishes in the sink.5.We left you _______ charge. We won’t tolerate such _________(behave) in our house.6.Eric sits on his bed. Daniel has his arms __________(cross) and looks upset.7.They don’t deserve an ___________(explain).8.They never even gave me a chance to defend __________(me).9.Maybe, but now that he has been so rude to us, I feel like we have to punish him or he won’trespect us.10.American English and British English differ _______ in many small ways.11.I studied a lot and stayed _______ very late.12.Miss Xu made an error and mixed ________ my results with someone else’s.13.I am writing to ask for some ________ (guide) about my 15-year-old son.14.How can I help my son without __________(harm) our relationship?15.It is also foolish ______of him to eat so many sweets.16.With a little bit of ___________(patient) and communication, many of these problems can besolved.17.He even forbids me _______ chatting with my friends in the Internet cafe.18.Many teenagers feel lonely, as _______ no one understands them and the changes they are going__________.19.As teenagers grow, it’s normal for them to become_______(confuse) with the changing world bot hinside and outside.20.Since teenagers have difficulty ___________(balance) these needs, they often question who theyare and how they fit in society.二、语法复习：定语从句（一）定语从句的相关概念:1. 定语从句，在句子中起定语作用，修饰___________或____________。
定语从句定语：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、短语或句子,汉语中常用‘……的’表示;例如 a clever boy the boiling water fallen leaves•The boy in the classroom needs a pen.•The man standing there is my teacher.定语从句：一个句子充当定语The boy who is reading needs the pen.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;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 关系词：引导定语从句的词,并代替先行词在从句中担任一定的成分;分为关系代词和关系副词;4 定语从句基本构成：先行词+关系词+从句A 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1.The student who answered the question was John.2. I know the reason why he was so angry.3. The boy whom you are talking to is my brother.4. I’d like a room whose window looks out over the sea.B简单句变定语从句例1：The girl is Mary. The girl is standing there.The girl who is standing there is Mary.如何改写定语从句1、找准主句和从句,并找出两个简单句的共有成分,确定先行词;2、将从句中的共有成分去掉;3.找准关系词,用关系词引导从句剩下的部分,并紧接在被修饰词先行词之后;例2：A plane is a machine. The machine can fly.例3：The girl is Mary. We saw her yesterday.C定语从句选择关系词三步曲：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、宾语或状语；第三选择合适的关系词;Ⅱ. 几个关系代词的基本用法：●that: 可指人或物；在定语从句中作主语,宾语,表语;指人时,相当于who或whom；指物时,相当于which 一般不用于非限制性定语从句; 不可置于介词后作宾语如：1. A letter that/which is written in pencil is difficult to read. 主语2. Do you know the gentleman that/who spoke just now3. You can take anything that you like. 宾语4. What is the question that/which they are talking about5. Here is the man who/whom/that you want to see.●which: 指物；在定语从句中作主语,宾语如：1. The book which/that was on the desk was bought by my father.主语2. The book which/that I bought yesterday is very interesting.宾语3. He was proud, which his brother never was. 表语●who, whom, whose:who: 主格, 在从句中作主语,在口语或非正式用法中作宾语; 只可指人whom: 宾格,在从句中作宾语; 只可指人whose: 属格,在从句中作定语,可指人也可指物;I like the students who/that work hard. 主语All who heard the story were amazed. 代词如he, they, any, those, all, one等后多用who.He's a man from whom we should learn. 宾语= He's a man whom/who/that we should learn from.A child whose parents are dead is called an orphan.指人I'd like a room whose window faces south. 指物whose +n. =the +n. + of which 物= of which 物+ the +n.=I'd like a room of which the window faces south. whose + n. =the +n. + of whom人= of whom人+ the +n.=I'd like a room the window of which faces south.注意：定语从句中的谓语动词的单复数于先行词保持一致This is one of the best books that have ever been written.He is one of the students who study hard at school.当one前面有the only等限定词和修饰语时, 定语从句的谓语动词要与one保持一致而取单数形式例如This is the only one of the best books that has ever been written.He is the only one of the students who studies hard at school.Ⅲ. 几个易混淆的关系代词的比较:●宜用that, 而不宜用which 的情况.①先行词为不定代词表示物,all, much, something, everything, anything ,nothing, none, the one等,②先行词被only, any, few, little, no, just, very, one of等词修饰时;③先行词是序数词时或被序数词修饰时;④先行词是最高级或被最高级修饰时;.⑤先行词既有人又有物,用which和who都不适合,这时宜用that. 如：⑧主句是There be 结构,修饰其主句的定语从句宜用that 作关系代词. 如：1. There is still a seat in the corner that is still free.⑨被修饰成分为表语时,或者关系代词本身是定语从句的表语时,该关系代词宜用that .2. My home village is no longer the place that it used to be .●定语从句中宜用which而不宜用that 的情况:①当关系代词的前面有介词时.1.A zoo is a park in which many kinds of animals are kept for exhibition.②在非限制性定语从句中.1.Crusoe's dog, which was are now very old, became ill and died .2.More and more people are beginning to learn English, which is becoming very popular in our country. which 指代主句B who & that:● who 和that 指代人时,有些情况宜用who, 而不宜用that①先行词为anyone, anybody, those, all, one, ones, they, he, people时. 如：.②在There be 结构中,修饰主语的定语从句宜用关系代词who 指代人. 如：1.There is a gentleman who wants to see you .Ⅳ.关系副词引导的定语从句:●When 指时间,在定语从句中作时间状语;定语从句中when=in/on/at which, 其先行词是表时间的名词如：time, day, week, tear, month, etc.I still remember the day when /on which my brother joined the army.作状语I shall never forget the day when Shen Zhou Ⅴwas launched, which has a great effect on my life.I still remember the days which/that we spent together. 作宾语Next winter which/that you'll spend in Harbin, I'm sure, will be exciting.●Where 指地点,在定语从句中作地点状语;定语从句中where=in/on/at which,其先行词是表示地点的名词,如：place, school, factory, room, etc.This is the factory where /in which he worked last year. 作状语This is the place where I was born.This is the park which/that they visited last year. 作宾语I live in the room which was bought by my father.I think you have got to the point where a change is needed, or you would fail.He's got himself into a dangerous situation where he's likely to lose control of the plane.●Why 指原因,在定语从句中作原因状语;先行词为reason 时,可用for which指代；如：That’s the reason why/for which he was late.The reason why / for which he didn't attend the meeting was that he was ill.I don't believe the reason that/which he gave me. 作宾语Have you asked him the reason t hat may explain his success 作主语当先行词为way时,关系词在句中作状语时,定语从句常用that, in which引导,that常可以省略;way后的定语从句的引导词不用时较多;但如果关系词在句中作主语或宾语时,则用which或that 引导;如:This is the way that /in which I do such things.比较: Please do the experiment in the waythat/whichI have shown you.V.介词+关系代词考点1.基本考点考点1 简单介词+关系代词引导定语从句时,that和who不能用于介词之后,能用于介词＋关系代词引导定语从句的代词只有which和whom;考查“介词+ 关系代词”引导的定语从句,关系代词前该选什么样的介词,要根据不同的语境、词组搭配、习语、惯用法等来决定,归纳起来介词的选择主要依据如下几点：①介词与定语从句的先行词搭配;如：The farm on which I once worked has taken on a new look．on the farm②介词与从句中动词搭配;如：Who is the man with whom our teacher is shaking hands shake hands with sb.In the dark street there wasn’t a single person to whom she could turn for help. turn to sb. for help③介词与定语从句中的形容词搭配,如：The west lake, for which Hang Zhou is famous, is a beautiful place. be famous for④根据句子的意思来决定, 此时不但要注意其前的搭配也要注意其后的搭配;Water is very important for us without which we can’t live.2004辽宁The factory produces half a million pairs of shoes every year, 80% of which are sold abroad．2006辽宁I was told that there were about 50 foreign students studying Chinese in the school, most of whom were from Germany.The old man has two daughters．Both of them are doctors．那位老人有两个女儿,她们都是医生;③as 常用在as we all know；as you know; as is known to all; as you see; as we can see; as has been expected 等结构中;例如：一般译为"正如""就像","这一点"As we all know, smoking is harmful to one's health . as 作宾语=As is known to all, smoking is harmful to one's health . as 作主语=It's known to all that smoking is harmful to one's health .=Smoking is harmful to one's health, as we all know .as 作宾语Jack has won the first prize, as often happens. 像往常一样,Jack得了一等奖;训练题汇总◆EX1用适当的关系词填空.1. I will never forget the day __________ I first went to school.I will never forget the day __________ we spent in Beijing.2. The house __________ we visited is being repaired now.The house ______ Luxun once lived is being repaired now.◆Ex2选择适当的代词填空,注意非限制性定语从句和单句的比较;1.I am reading Harry Porter, _____is an interesting book.2.He failed in the exam._______ made his parents angry.3.He failed in the exam, _______made his parents angry.4.He has two sons. Both of ________ are teachers.5.He has two sons, both of ________ are teachers.◆EX3 思考:用五种方式定语从句翻译句子这是他工作的工厂;1. This is the factory________ he works.2. This is the factory ________he works.3. This is the factory________ he works in.4. This is the factory ________he works in.5. This is the factory________he works in.◆EX4 思考: 介词+关系代词的情况介词+关系代词的情况 1The man whom you spoke________ was a scientist. The city ________she lives in is far away.介词+关系代词的情况2 改错The man to who you spoke was a scientist.The city in that she lives is far away.◆Ex5: 介词+关系代词的使用1. Do you like the book she spent $102. Do you like the book she paid $103. Do you like the book she learned a lot4. Do you like the book she often talks5. He dug a hole he could got water from the lake.6. There is a tall tree outside, stands our teacher.7. China has a lot of rivers, the second longest ___________is the Yellow River.8. The man ____________ I spoke on the phone last night is very good at swimming.9. He paid the boy $10 for washing ten windows, most __________ hadn’t been cleaned for at least a year.。
