定语从句精讲
高三英语定语从句知识精讲
高三英语定语从句【本讲主要内容】定语从句【知识总结归纳】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。
An architect is someone who designs buildings.Barbara worked for a company that makes washing machines.The woman whom I wanted to see was away on holiday.The last time I saw her, she looked very well.The reason I’ m phoning you is to invite you to a party.定语从句分为限制性定语从句和非限制性定语从句。
The woman who lives next door is a doctor.My brother Jim, who lives in London, is a doctor.We stayed at the hotel （that） Ann recommended to us.We stayed at the Grand Hotel, which Ann recommended to us.I. 先行词：在定语从句中被修饰的词叫先行词。
II. 关系词：用来引导定语从句的词有关系代词和关系副词，放在先行词和定语从句之间，起连接作用，同时又做定语从句的一个语法部分。
关系代词：that, which , who , whom , whose关系副词：when , where , why（一）关系代词：that, which, who, whom, whose1. that：既可以指物，也可以指人，在从句中做主语或宾语．A plane is a machine that can fly．（主语）The car which I hired broke down．（宾语）Who is the man that is reading the newspaper over there?（主语）2. which指物，在从句中做主语或宾语．A chemist's shop is a shop which sells medicine．（主语）These are the books which you ordered．（宾语）3. who，whom，指人，在从句中分别做主语和宾语，The man who robbed him has been arrested．（主语）The girl whom I saw told me to come back today．（宾语）4. whose用来做定语从句中的主语或宾语的定语。
定语从句(经典)
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2. which 指物,在从句中作主语或宾语。作主语不可省略;作宾语可以省略。
( which 与that 指物时可以互相代替，that 更常见。）
1) His father works in a factory that makes TV sets.
His father works in a factory which makes TV sets.
先行词 关系词
从句
which、that 是关系代词，它在从句中代替先行词the building,
同时担任从句中的主语，也起连词的作用，把两个简单句连接 起来。
❖ 关系代词的使用取决于先行词，它们的关系非常密切，因为关系代词在
定语从句中代替主句中的先行词，所以它在一般情况下都跟在先行词之后， 而且它的 人称、数必须和先行词一致。
▪There are many young men wh精o品a文r档e against him.
▪ Those who want to go to the Great Wall sign up here.
▪ One who has nothing to fear oneself dares to tell the truth.
2.在there be 句型中，先行词指人,关系词用who
▪ There is an old man who wants to see you.
注意: 固定动介词组不可分割,介词不精能品提文前档 .例如:look after,look at …12
3 )The room (that) I live in is very big. The room (which) I live in is very big. The room in which I live is very big. The room where I live is very big.
人教版九年级英语定语从句语法知识精讲
人教版九年级英语定语从句语法知识精讲Unit 9 Grammars 定语从句※一.定语从句的定义及结构1.定义：在复合句中，修饰某一名词或代词的从句叫定语从句。
被定语从句修饰的名词或代词叫先行词，定语从句必须放在先行词的后面。
2.定语从句的基本结构：“先行词+关联词+定语从句。
”定语从句的作用：定语从句在复合句中对先行词起修饰、限制的作用，相当于汉语中的“…的”结构。
※二.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：从句紧跟先行词，主句与从句不用逗号分开，从句不可省去。
2.非限制性定语从句，主句与从句之间有逗号分开，定语从句起补充说明作用，如果省去，意思仍完整。
※三.定语从句的引导词(也叫关联词或关系词）定语从句的引导词，放在先行词及定语从句之间起连接作用，同时又代替先行词在从句中充当句子的某一成分。
1.定语从句的引导词分为：关系代词和关系副词●常见的关系代词有：that, which，who，whom，whose●关系副词有：where，when，why等。
2.引导词的作用：⑴关系代词在从句中作主语，宾语和定语；⑵关系副词在从句中作状语关系代词用法巧记歌that指人也指物，主语宾语都能用which指物不指人，主语宾语它也能who和whom都指人，主语宾语要分清whom只作宾who宾、主它都行whose whose 真管用，指人指物它都行只作定语要记清关系代词和关系副词的用法见下表：关系代词指代(先行词) 在从句中所充当的成分which 物作主语或宾语that 人或物作主语或宾语who 人作主语或宾语whom 人作宾语whose 人或物作定语关系副词指代句子成分when 时间作时间状语why 原因作原因状语where 地点作地点状语※四.关系代词和关系副词的具体用法及例句㈠关系代词的用法1. thatthat 既可以用于指人，也可以用于指物。
定语从句精讲
定语从句精讲【考点精析】在复合句中，修饰名词、代词或整个句子的从句叫作定语从句。
定语从句可以分为限制性定语从句和非限制性定语从句。
考点1关系代词引导的定语从句(1)who, whom, whose引导的定语从句who和whom指人。
who在定语从句中作主语或宾语；whom在定语从句中作宾语，在限制性定语从句中可省略。
在口语中可用who代替whom。
Some people who are successful language learners often fail in other fields.有些成功的语言学习者，在其他领域常常会失败。
The student who/whom you talked to just now is my best friend.你刚才谈话的那个学生是我最好的朋友。
whose指人或物，在定语从句中作定语，指物时可用of which代替，指人时可用of whom代替。
My eldest son，whose work takes him all over the world, is in New York at the moment.我的大儿子目前在纽约，他的工作使他走遍了全世界。
He lives in a house, whose window is broken.他住在一所房子里，房子的窗户坏了。
(2)that/which/as引导的定语从句①只用that引导定语从句的情况·先行词是all，everything，anything，nothing，something，little，much，none，few，the one等不定代词时。
(如先行词指人，可用who代替that)·先行词被the only, the very (正是、恰是), the last修饰时。
(如先行词指人，可用who代替that)·先行词被all, any, few, every, no, little, much, some等词修饰时。
中考英语语法精讲：定语从句
中考英语语法精讲：定语从句定语从句精讲一、基本概念：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。
先行词：被定语从句所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。
关系词：引导定语从句词叫关系词。
关系词分为关系代词和关系副词。
常见的关系代词有that, which, who (宾格whom, 所有格whose)等,关系代词在从句中做主语，宾语或定语；关系副词有where, when, why等，关系副词在从句中做状语。
关系词的作用：1.代替先行词；2.连接先行词和从句；3.作定语从句的句子成分。
二、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和非限制性定语从句。
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；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。
三、关系代词和关系副词的用法注意前时,只能用“介词+which/whom”结构。
例如:This is the house in which we lived last year.Please tell me from whom you borrowed the English novel.(2)含有介词的固定动词词组中,介词不可前置,只能放在原来的位置上。
例如:This is the person whom you are looking for.(3)that 作介词的宾语时,介词不能放它的前面,只能放在从句中动词的后面。
例如:The city that she lives in is very far away.(4)关系词只能用that的情况:a. 先行词被序数词或形容词最高级所修饰,或本身是序数词或形容词最高级时,只能用that。
He was the first person that passed the exam.b.先行词是all, any, much, many, everything, anything, none, the one等不定代词时,只能用that。
无生试讲语法课定语从句
无生试讲语法课定语从句定语从句是英语语法中的重要部分，它用于修饰名词或代词，进一步说明其意义。
在本次无生试讲的语法课中，我们将深入探讨定语从句的定义、结构和用法，以及一些常见的错误使用情况。
通过这堂课，学生们将能够更好地理解和运用定语从句，提高他们的语言表达能力。
一、定语从句的定义和结构定语从句是由关系词引导的从句，用于修饰名词或代词。
关系词包括that, which, who, whom, whose等。
定语从句的结构一般为：关系词 + 主语 + 谓语。
例如：“I like the book that you recommended.”（我喜欢你推荐的那本书。
）二、关系词的用法1. That用于修饰人和物，作主语或宾语。
例如：“She is the girl that won the singing competition.”（她是赢得歌唱比赛的那个女孩。
）2. Which用于修饰物，作主语或宾语。
例如：“I don't like the shirt which you bought for me.”（我不喜欢你给我买的那件衬衫。
）3. Who用于修饰人，作主语或宾语。
例如：“The m an who is talking to Mary is my uncle.”（正在和玛丽说话的那个人是我的叔叔。
）4. Whom用于修饰人，作宾语。
例如：“He is the man whom I met yesterday.”（他是我昨天遇见的那个人。
）5. Whose用于修饰人或物，表示所属关系。
例如：“This is the house whose owner is a famous actor.”（这是房子，它的主人是一位著名演员。
）三、常见的错误使用情况1. 不必要的定语从句。
例如：“The book, which is on the table, is mine.”（这本书，它在桌子上，是我的。
英语语法精讲：定语从句
定语从句定语从句(也称关系从句、形容词性从句)，一个句子跟在一个名词或代词(先行词)后进行修饰限定(对词句进行补充、修饰、限定，进而使原句内容更完整)，就叫做定语从句。
按语法句式，定语从句在整个句子中做定语的成分。
被修饰的词叫先行词。
定语从句不同于单词作定语的情况，它通常只能放在被修饰的词(即先行词)之后。
定语从句由关系词(关系代词、关系副词)引导，关系代词、关系副词位于定语从句句首。
基本信息第一种: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、表语等成分。
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 cover is green.=Please pass me the book the cover of which 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 has never been seen before appears in the countryside.农村出现了前所未有的繁荣。
高中英语语法定语从句精讲
高中英语语法定语从句精讲一、一般性定语从句1、The book that you need is in the library.2、Anyone who breaks the law will be punished.3、Some of the boys I invited didn’t come.二、用代词which,that,who,引导的1、He is the man who we want to look for.2、The new bike which I bought last week was broke n.3、A prosperity which/that had never been seen before appears in the countryside.三、用副词where,when,why引导的定语从句1.基本用法定语从句除可用关系代词引导外,还可用关系副词when,where与why来引导,它们的区别是:w hen用于指时间,where用于指地点,why用于指原因。
w hen,where,wh y在定语从句中均用作状语。
2.先行词问题关系副词when关系副词和where的先行词是表示时间(如the day,the days,the time,the year等和地点(如the place,the house,the factory,the station等的一类词,而关系副词w hy的先行词通常只是whythe reason(s。
另外,w hen和where可引导限制性和非限制性定语从句,而why则只用于引导限制性定语从句,不用于引导非限制性定语从句。
3.一点注意注意不要以为在时间名词后就一定用关系副词when,在地点名词后就一定用关系副词w here,在表示原因的the reason后就一定用关系副词w hy。
到底选用关系副词还是关系代词,关键是看它们在定语是用作状语(用关系副词还是用作主语或宾语(用关系代词。
定语从句精讲 + 例句 -(PPT,新概念1)
在定语从句中，in which与where的意义完全相同。如果使用in which则不用在后面再使用介词。 相反如果用where，在后面可以使用介词。
This is the house where he live in. This is the house in which he live.
That：可以指人也可以指物（that指人时，等于你做的面很好吃。 The noodles( which/that )you cooked were delicious. 我不喜欢总是抽烟的人。 I don’t like the people who/that smoke a lot.
限制性定语从句和非限制性定语从句
1.限制性定语从句时先行词不可缺少的部分，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。 2. 非限制性定语从句不可以由关系代词that和关系副词why引导 ，人和物都不可以用。
对比下列两组句子：
先行词
先行词是被定语从句所修饰的名词、代词。在定语从句中充当一定的部分。 之所以称它为先行词，是因为修饰它的定语从句总是放在它之后，先行词总是出 现在定语从句之前，而不同于普通形容词修饰名词时，形容词位于名词之前。
a beautiful girl a very old women a very tall building a lovely dog a clear answer
3. 先行词既包含人也包含物时，关系词用that， 不用which。
如，They were talking about persons and things that they remembered in school.
高中英语定语从句基础知识精讲
定语从句一﹑概念定语从句是指在句子中起定语作用、修饰句中名词或代词的从句，其中被修饰的名词或代词称为先行词。
定语从句一般紧跟在它修饰的先行词之后，在先行词和定语从句之间起连接作用的词叫做关系词。
关系词有关系代词和关系副词两种。
定语从句就其与先行词的关系，可以分为限制性定语从句和非限制性定语从句。
限制性定语从句与先行词的关系十分密切，如果去掉该从句，主句意思就不能表达完整。
通常情况下，朗读时中间没有停顿，从句和主句之间不用逗号分开。
非限制性定语从句与先行词的关系很松散，去掉从句，主句意思仍然清楚，从句只是作附加说明。
朗读时中间一般有停顿，从句和主句之间用逗号分开。
如：Yesterday I met one of my friends, who seemed to be very busy.昨天我遇到了一位老朋友，他好像很忙。
They want to set up a country of their own, where they can be their own masters.他们想建立自己的国家，在那儿他们可以当家作主。
这里我们先讨论限制性定语从句。
限制性定语从句使被修饰的词代表一个、一些或一类特定的人或事物，这种定语从句已和被修饰词构成了一个完整的意思，定语从句不能拿掉，否则剩下的主句就会失去意义，显得莫名其妙，不知所云而不能成立。
二、关系代词（1）最常用的关系代词是who, whom, whose, that和which。
关系代词同时起了两个作用。
它们可以像别的代词一样，可以代表一个名词，在定语从句中用作主语或宾语，同时，它们又起到了连词的作用，把主句和从句连接起来。
如：1. What’s the name of the girl who just came in? 刚才进来的那位姑娘叫什么名字？2. Do you know the gentleman that spoke just now? 刚才发言的那位先生你认识吗？3. The train which has just left is for Xi’an.刚开的那列火车是开往西安的。
高中英语高考复习定语从句知识精讲(附练习题)
高考英语定语从句知识精讲一、关系代词引导的定语从句1、that 指人或物在从句中作主语，宾语或表语；which 指物在从句中作主语，宾语或表语（作宾语时可以省略）；who 指人在从句中作主语，宾语或表语（作宾语时可以省略）；whom 指人在从句中作宾语（作宾语时可以省略）；whose 指人或物在从句中作定语；as 指人或物在从句中作主语，宾语或表语；注意：指物时，whose+名词 = the+名词+of which 或 of which + the +名词2、as 的用法（1）常用于下列结构：such…as; so…as; the same…as;注意：the same…as 表示同一类，不同一个the same…that 表示同一个（2）as与which的区别a、位置不同as可放在主句后，主句前或主句中间；which只能放在主句后。
b、as起连接作用，表达说话人的观点、看法，并指出主句内容的根据或出处，意为“正如，正像”。
which相当于并列句，可以用and this来代替，意为“这一点，这件事’”。
注意：as常用于下列结构：as we know/ as is known to all, as we all can see, as has been said before/above, as might be excepted, as is often the case, 一般不能用which 代替as。
c、在从句中作主语时，which既可作系动词be的主语也可作实义动词的主语，而as只可作系动词be的主语。
二、只用that不用which的情况1、先行词为 all, much, everything, nothing, something, anything, nothing, none, the one等不定代词时2、先行词被only, any, few, little, no , all, just , very ,right等修饰时.3、当先行词是最高级或被形容词最高级修饰时。
英语语法精讲-定语从句
英语语法精讲-定语从句一.定语从句及相关术语1.定语从句：修饰一个名词或代词的从句称为定语从句，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成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；关系副词有where, when, why等。
关系词常有3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.关系代词引导的定语从句1.who指人，在从句中做主语(1) The boys who are playing football are from Class One.(2) 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。
(1) Mr. Liu is the person (whom) you talked about on the bus.(2) 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。
(3) 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者宾语，做宾语时可省略(1) Football is a game which is liked by most boys.(2) This is the pen (which) he bought yesterday.4. that指人时，相当于who 或者whom；指物时，相当于which。
在宾语从句中做主语或者宾语，做宾语时可省略。
(5) The number of the people that/who come to visit the city each year rises one million.(6) 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(1) He has a friend whose father is a doctor.(2) I once lived in a house whose roof has fallen in.whose指物时，常用以下结构来代替(3) The classroom whose door is broken will soon be repaired.(4) The classroom the door of which is broken will soon be repaired.(5) Do you like the book whose cover is yellow?(6) Do you like the book the color of which is yellow?三.介词+关系代词引导的定语从句关系代词在定语从句中做介词宾语时，从句常由介词+关系代词引导(1) The school (that/which) he once studied in is very famous.(2) The school in which he once studied is very famous.(3) Tomorrow I will bring here a magazine (that/which) you asked for.(4) Tomorrow I will bring here a magazine for which you asked.(5) We'll go to hear the famous singer (whom/that/who) we have often talked about.(6) We'll go to hear the famous singer about whom we have often talked.注意：1. 含有介词的动词短语一般不拆开使用，如：look for, look after, take care of等(1) This is the watch which/that I am looking for. (T)(2) This is the watch for which I am looking. (F)2. 若介词放在关系代词前，关系代词指人时用whom，不可用who或者that；指物时用which，不能用that；关系代词是所有格时用whose(1) The man with whom you talked is my friend. (T)(2) The man who/that you talked with is my friend. (F)(3) The plane in which we flew to Canada is very comfortable. (T)(4) The plane in that we flew in to Canada is very comfortable. (F)3.“介词+关系代词”前可有some, any, none, both, all, neither, most, each, few等代词或者数词(1) He loved his parents deeply, both of whom are very kind to him.(2) In the basket there are quite many apples, some of which have gone bad.(3) There are forty students in our class in all, most of whom are from big cities.四．关系副词引导的定语从句1. when指时间，在定语从句中做时间状语(1) I still remember the day when I first came to the school.(2) The time when we got together finally came.2. where指地点，在定语从句中做地点状语(1) Shanghai is the city where I was born.(2) The house where I lived ten years ago has been pulled down.3. why指原因，在定语从句中做原因状语(1) Please tell me the reason why you missed the plane.(2) I don't know the reason why he looks unhappy today.注意：关系副词引导的从句可以由“介词+关系代词”引导的从句替换(1) The reason why/ for which he refused the invitation is not clear,(2) From the year when/in which he was going to school he began to know what he wanted when he grew up.(3) Great changes have taken place in the city in which/where I was born.五．限制性定语从句和非限制性定语从句限制性定语从句举例：(1) The teacher told me that Tom was the only person that I could depend on.(2) China is a country which has a long history.非限制性定语从句举例：(1) His mother, who loves him very much, is strict with him.(2) China, which was founded in 1949, is becoming more and more powerful.要注意区分以下几个句子的不同(1) His brother who is now a doctor always encourages him to go to college.他那当医生的哥哥常鼓励他要考上大学。
初中英语语法-定语从句精讲(共38张PPT)
3. I live in the room _w_h_o_s_e____windows face south.
4. He is a person (_th_a_t_/_w_h_o_m) we like very much. 5. The last place _t_h_at__ we visited was the Great Wall.
状
2012重庆）29. Sales director is a position ______communication ability is just as important as sales skills. A. which B. that C. when D. where
2012浙江）9. We live in an age ______ more information
(1). This is the best building ＿（＿thaI ht）ave seen in Paris.
(2). She is the most beautiful girl ＿＿ I have met.
（that）
3、先行词被序数词，或者被the last(最后的), the only(唯 一的), the very（正是那个）, all, any, every, few, little, no, some等词所修饰时，引导词只用that。
谢谢欣赏
当先行词在定语从句中充当所有格
人的
1. The worker __w_h__o_s_e__ arm was cut down was sent to hospital.
定语从句精讲
（一）定义在复合句中，修饰某一名词或代词的从句叫做定语从句。
定语从句所修饰的名或代词叫作先行词，定语从句一般紧跟在先行词的后面；引导定语从句的词被称为关系词。
The stude nts Who don' t study hard） will not pass the exam.先行词定语从句关系词的作用：代替先行词充当成分起连接作用关系词：关系代词that、which、as、who whom whose关系畐U词where、why、when（二）用法1.关系代词的用法（1）that指人或物，在从句中作主语或宾语。
A pla ne is a machi ne that can fly.主语The girl that we saw yesterday is Jimssister.宾语（2）Which指物，在从句中作主语或宾语。
They planted the trees which didnt need much water.（主语）The fish which we bought were not fresh. （宾语）（3）who/ whom指人，who在从句中作主语、宾语，whom!乍宾语。
The boy who broke the window is called Michael.（主语）The person to whom you just talked is Mr. Li.（宾语）（4） whose指人或物，在从句中作定语。
This is the book whose cover is blue.I would like a room whose win dow looks out over the sea.(5) as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，as在从句中作主语、宾语或表语。
1)引导限制性定语从句常用于下列句式：Such +名词+ as..…像.…一样的the same +名词+ as....和..…同样的其中关系代词as在从句中担当主语、宾语或表语。
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7, The lecturers are those people. Those people have made real discoveries in their area of science. The lecturers are those people Those people who/that have made real discoveries in their area of science.
关 系 代 词 的 用 法
that which who whom whose as 1.） that在从句中作主语或宾语，指人和物。
A plane is a machine that can fly. 主语 The noodles that I ate were delicious. 宾语 Let’s ask the man that is reading the book over there. 主语 The girl that we saw yesterday is Jim’sister. 宾语 2.） Which在从句中作主语或宾语，指物。 They planted the trees which didn’t need much water. 主语
2，关系副词
引导定语从句的关系副词的用法：
why, when, where
关系副词 先行词 在从句中的作用 时间状语 地点状语 原因状语
when(=at/in/on which) 表示时间的名词 where(=in/at which) why(=for which) 表示地点的名词 reason
2. She hasn’t got enough money with which to buy the necklace
3. In the dark street, there was not a single person to whom he could turn for help. 4.China has many rivers, among which the Changjiang River is the longest.
3.There are a few students in our class who keep coming to class late but they are always for Mrs Chen’s lessons. 4.We saw abandoned farms which were built
This is the school which I visited last year.
1.定语与定语从句的区别
2.定语从句中的先行词，关系词分别指什么，二者的 关系是什么。
先行词：被定语从句所修饰的名词（短语） 或代词（短语）。
关系词：引导定语从句的词，也叫连接词。
先行词与关系词的关系：先行词是主句中的 一个部分。关系词是引导定语从句来限定修 饰先行词。 关系词是用来代替先行词在从句中的成分 和意义。
a hundred years ago.
5. In 1925, they passed a law which allowed people to shoot the animals if they were a problem .
两个句子：In 1925, they passed a law. The law allowed people to shoot the animals if they were a problem.
合并句子 In 1925, they passed a law . which/that allowed The law people to shoot the animals if they were a problem.
6. A monitor is a part of a computer.
5.The school year is divided into two semesters, the first of which is September through December.
6.I went to the house in which/ where my grandmother lives.
1,Have you seen the boy 《with a pair of sunglasses》？ Have you seen the boy 《who is wearing a pair of sunglasses》？ 2,This is the school . I visited it last year.
ห้องสมุดไป่ตู้
关系词通常有三个作用：引导定语从句； 指代先行词；在定语从句中充当句子成分。
三，定语从句系统讲解
1 定语从句关系词分类
1）关系代词
that who whom whose which as
2） 关系副词
when where why
3）介词 +which 介词+whom 介词+whose +名词
5）练习Fill in the blanks with who, whom, that, which or whose
2. We don’t know the number of people who/that ____________ lost their homes in 1906 earthquake 3. The house Which/that they built in 1987 stayed up in ________ the earthquake.
7.The old man has two sons, one of whom turns doctor.
which / that 1. The earthquake_________ _ hit the city in 1906 was the biggest in American history.
短
He is a good student.
We’ll have some new book shops.
名词
形容词
This is a boy full of joy. 语 介词 不定式 动名词 This is a writing desk. 分词 The children like the interesting stories. 从句 I know the boy who visited you. The boy in the room is Tom. I have a chance to help others.
I live in the house the roof of which is red.
I live in the house of which the roof is red.
介词+关系代词的用法 1.The two things of which they felt very proud are Jim’s gold watch and Della’s hair.
定语从句
新课框架 1,理解体会定语的含义,作用,在句中的位置(通过举例) 2,引出定语从句(举例) 3,解释先行词,关系词并作辨认练习 4,体会先行词,关系词之间的关系 5,按关系词细讲定语从句 6,作一些合并句子的练习,暴露错误 7,强调易错点易混点
认识定语
一， 定
语(adj./ad.)
单词
This is the book whose cover is blue. (whose=the book’s) 关系代词whose还可以在从句中与它所修饰的词一起 作介词宾语（在whose)之前可以有介词 The boss in whose company my father worked is a very kind person. 思考:用whose时，前后词之间有什么关系，也可能 等于什么？ I live in the house whose roof is red.
什么是句子
无论字数多少，只要有主语和谓语, 而且能表达完整的意 义的一句话就是一个句子。 要记住：在英语中，一个句子必须且只能有一个谓语。若 两个或多个句子要共存在一个句号下,须有and或but或 so ,yet 等词来连接而构成并列句。并列句的各个子句子 不分主次。若是两个或多个句子通过一些从属连词（即就 是由if,whether,though,that,who ,when等以及一些特殊 疑问词变来的连接词）来连接而共存，则主句只有一个， 从句可以多个，一个从句应有一个引导词/连接词，但有 些从句的引导词可以省略。多数结构为 连接词/引导词+从句 ,引导词的成分放从句中分析
1）.where 表地点，只能跟在表示地点的名词后，它在 定语从句中做地点状语 This is the school where (=at which) I used to teach. What is the name of the town where (=in which) we stayed last night?
2）. when表示时间，只能跟在表时间的名词后。 Tell me the time when the train leaves. I will never forget the day when I joined the army. Do you remember the days which /that we spent on the farm? 3）. why表示原因，通常跟在reason后引导定语从句。 I don’t know the reason why he left here.