定语从句
请看下面的句子：
I want to know the boy who is the tallest. 句子做定语修饰boy （一）概念:
定语从句：在复合句中修饰名词或代词的句子， 叫定语从句。 先行词：被定语从句修饰的词叫先行词。 关系词：引导定语从句的词叫关系词。 （二）定语从句的分类
Ⅰ、限定性定语从句：从句不可少，没有它，先行词的意思不明确，主句也不完整。与先行词之间不用逗号。
e.g:This is the book that/which I want.
Ⅱ、非限定性定语从句：是对先行词的补充说明，没有它不会影响先行词或主句意思的完整性。 从句一般用逗号同主句分开。
e.g:Mr. Green， who is watching TV，is my uncle. （三）(限定性)定语从句的结构 Mary is a girl who has long hair. 先行词 关系词 定语从句
关系代词 关系副词 which, who, whom, whose, that where, when, why （四）定语从句的实质：二句合一
（合并条件：人物先行在句一，又占句二一席地） Mary is a girl.
合并为一个句子 She has long hair.
思路：留（保留先行词）-----舍（舍去与先行词互指的词）----替（用关系词代替舍去部分） Mary is a girl who/that has long hair. 请把下列句子二句合一
1. I saw the man.He closed the door 2.The girl is happy. She won the race
3.The man called the police . His wallet was stolen （五） 定语从句关系词的确定: ? a.先行词的分类
? b.先行词在从句中充当的成分
1.先行词做主语 人：who/that 物：which/that
2.先行词做宾语 人：who/whom/that 物：which/that 3.先行词做定语 人：whose
物：whose/of which 4.先行词做状语：when, where, why ? who, whom, whose, that用法区别. ? who /that作定语从句的主语或宾语.
The man who/that is speaking at the meeting is a worker.
做题思路：先分解——分析——再合并 分解 The man is a worker. The man is speaking at the meeting. 作主语 ? Whom /that作定语从句的宾语
The woman（ whom/that) they wanted to visit is a teacher. 分解 The woman is a teacher.
They wanted to visit the woman. 作宾语 注意: 关系代词作动词宾语时可省略. ? whose 作定语从句的定语.
I know the girl whose mother is a teacher. 分解 I know the girl.
The girl’s mother is a teacher. 作定语 小结：
关系词判断步骤
? 首先，要辨别出先行词。如果先行词是指人,关系词可能就用who, that whom, whose。如果先行词指物,
关系词可能用which或that
? 然后，要确定关系词在从句中的成分。请看下表 先行词 人 物 主语 who, that which, that 宾语 who(m), that which, that 定语 whose whose, of which 巩固练习：用适当代关系词填空 1. I have a friend ________ likes listening to classical music.
2. Yesterday Emily was wearing the new dress __________ I gave her. 3. The man ______ leg broke in a match used to be a football player. （六）只能用that,不能用which的情况：
(1)先行词为all, everything，anything，nothing, something, nothing ,few, little, much, the one等不定代词时； (2)先行词被形容词最高级所修饰或被the only, the very, the last, any, few, little , no, all, one of 等修饰时： (3)先行词为数词或被序数词（含 last)修饰时。 （4）先行词是并列词组既有人又有物时。
(5)在以who, which开头的句子中为了避免重复。 口诀：不定代词这一伙，全用that准没错 先行词前有修饰，千万不能用which. 请在以下例句中体会以上规则： 1. Here is something that I will tell you.
2.We haven’t got much that we can offer you. 3. Is it the one that you want
4.This is the most interesting story that I have ever heard.
5. I can remember well the persons and some pictures that I see. 6.Which is the bike that you lost
7.Who is the woman that was praised at the meeting （七）只能使用which 的情况 ? 1.关系代词前有介词时； ? 2.先行词本身是 that 时；
? ? ? ? ? 3.非限定定语从句
口诀:要有which别着急， 介词提前逗隔离。
e.g:1.This is the classroom in which we studied for two year. 2.She has two dolls，which are from her parents
【定语从句命题趋势与预测】
根据对定语从句部分全国各省市中考试题的分析可知，今后该部分仍将是重点考查点之一。其考查重点为： 1． 定语从句的功用和结构
2． 关系代词和关系副词的功用
3． 各个关系代词和关系副词的具体用法 【考点诠释】
一、考查以that与which引导的定语从句 1．通常只能用that的情况
1）当先行词是不定代词a11，few，little，much，something，anything，nothing，everything等时。 2）先行词被序数词、形容词的最高级以及被a11，any，every，each，few，little，no，some， the only．the very．the last等修饰时。
3）如果先行词既指人又指物，应用关系代词that。
【考例】Without friendship, one can't be happy although he is rich enough. As for me, I will never forget the days __ I spent with my dearest friend. [哈尔滨市]
A. that B. when C. who
[答案]A。[解析]在定语从句中，引导词who(指人)which(指物)that(指人或物)。由先行词the days作spent的宾语可判定用that引导。 2．通常只用which的情况
(1)引导非限定性定语从句，用关系代词which指代前面整个句子的内容。 (2)引导非限定性定语从句，而且先行词指物时只能用which，不用that。
(3)如果句中有两个定语从句，如果两个从句都可以用that引导，那么其中一个应改用which引导。 【考例】Many young people love the songs _________have great lyrics. [成都市] A. who B. those C. which
[答案]C。[解析]考查定语从句。定语从句的引导词有which，who，where，that，故排除B，who指人，又排除了A，先行词是物，故选C。
二、考查以who，whom与whose引导的定语从句
(1)如果先行词是指人的不定代词anyone，anybody，everyone，everybody，someone，somebody，nobody，one，ones，those，all(指人)等作先行词，作主语用who，作宾语用whom。who而不用which。 (2)在非限制性定语从句中，指人作主语用who，作宾语用whom，who。
(3)在定语从句中，作定语的关系代词只能用whose，它相当于the+名词+of +which／whom；非限制性定语从句中还有 “代词／数词+of +which／whom\结构。
【考例The man _________ gave us a talk on science yesterday is a famous scientist. [广东省] A. who B. whose C. which D. whom
[答案]A。[解析]本题考查定语从句的关系代词。先行词为the man，指人，排除which；连接代词在从句中作主语，排除 whose和whom。故本题选who。 --Do you know the man __is running along the street --Yes. He is our English teacher. [长沙市] A. who B. which C. whom
[答案]A。[解析]考查定语从句。限制性定语从句，如果修饰人，一般用关系who，有时用 that(作主语时用who较多)。
三、考查关系副词where、when与why引导的定语从句
它们相当于“介词+which\，其中where=in／at +which；when=at／in／during +which；why=for +which。 (1)关系副词where引导定语从句时，只能在定语从句中作地点状语，其修饰的名词必须是表示地点的名词。 （2）关系副词when引导定语从句时，只能在定语从句中作时间状语，其修饰的名词必须是表示时间的名词。
(3)关系副词why引导定语从句时，只能在定语从句中作原因状语，其修饰的名词必 须是表示原因的名词。
【考例】 (2009·绵阳中考)Disney is an amusement park you can find a11 the normal attractions and Disney movies and characters．
A．which B．where C．that D ．when
答案：B点拨：此题考查定语从句。先行词为an amusement park指地点，故关系词用where。 五、对“介词+关系代词”的考查 当关系代词作介词宾语，且该介词不是和从句的谓语动词构成固定短语时，介词可以提前，这样就出现“介词+关系代词”。先行词指物，用“介词+which”，指人则用“介词+whom\，且两个关系代词均不能省略。介词的选择要遵循两个原则：根据定语从句中谓语动词与先行词的搭配内容而定；根据先行词的特殊用法而定。
【考例】Do you know the young lady ____your mother is talking (湖北黄石) A. who? B. whom? C. with whom?? D. which ?[答案]：C
[命题立意]：本题考查“介词+关系代词”引导定语从句的用法。
[试题解析]：先行词为the young lady，被关系代词whom代替在从句中作talk with 的宾语，介词with 可以放在关系代词之前，故应选C。 【语法回顾】
在复合句中，修饰某一名词或代词的从句叫做定语从句。定语从句所修饰的词叫做先行词。定语从句放在先行词的后面。引导定语从句的词叫做关系代词（that, which, who, whom, whose）或关系副词(when, where)，关系代词和关系副词放在先行词与定语从句之间，起联系的作用，同时又作定语从句的一个成分。 关系代词、副词 作用 先行词 例句 Do you know the girl who／that is standing under a tree你知道站在树下的女孩是谁吗 She got a computer which／that her parents bought for her． 她有一台她的父母买给她的电脑。 that， who， 主语、宾 人 whom(只做宾语、表语 语) that，which 主语、宾 物、时 语、表语 间、地 点、原 因 定语 人物 whose The boy whose father is a doctor studies very hard．他的爸爸是医生的男孩学习非常刻苦。 The classroom whose window is open is mine．窗户开着的那个教室是我的教室。 when where 状语 状语 时间 地点 I still remember the day when you leave for Beijing．我仍然记得你去北京的那一天。 This is the school where my mother works．这就是我妈妈 工作的学校。 Could you explain the reason why you were late你能解释一下你迟到的原因吗 why 状语 原因 二、关系代词在定语从句中的用法(关系代词作宾语时可省略)： 1．that指人或物，在定语从句中可作主语或宾语。
This is the pen that you are looking for. 这是你要找的那支钢笔。(宾语) The girl that has long hair is my sister.留着长发的那个女孩是我妹妹。（主语） 2．which指物，在定语从句中可作主语或宾语。
The bike which is made in Tianjin sells well.天津产的自行车销售很好。（主语） The fish which we bought were not fresh.我们买的鱼不新鲜。(宾语) 3．who, whom指人，在定语从句中可作主语或宾语。
The boy who broke the window is called Tom.打碎窗户的男孩叫Tom. （主语）
The person to whom he is talking is my father.正在和他谈话的那个人是我父亲。(宾语) 4．whose指人或物，在定语从句中作定语。
The girl whose bag is new is called Ann.新书包的那个女孩叫Ann。(指人)
He lives in a house whose widows open to the south.他住在窗户朝南的那所房子。(指物) 三、只用which不用that的情况：
1．在介词后只用which，不能用that。
This is the bank in which the robbery happened.这是那所发生抢劫案的银行。 2．先行词本身是that时，只能用which，不能用that。 The clock is that which tells the time.钟表是用来报时的。 四、只用that不用which的情况：
1．先行词被形容词最高级修饰时只能用that。
This is the most beautiful mountain that I have seen. 这是我所见过的最美丽的山。 2．先行词被序数词修饰时只能用that。
The first English novel that I read was Thirty-nine Steps.我读的第一本英文小说是《39级台阶》。 3. 先行词前有all, any, no, little, much, many, the only, the very, the last等修饰词时只能用that。 Here are all the books that I have. 这就是我所有的书。 This is the only book that I like.这是我唯一喜欢的一本书。 4．先行词是everything, something, anything, all, none, much, little, many, few等不定代词时，只能用that。 Finally, the thief handed in everything that he had stolen.最后小偷交出了他所偷的东西。 5．先行词同时含有“人”和“物”的名词时，只能用that。
I can remember the people and some pictures that I saw in the room.我能记得我在房间里看到的人和一些图画。 6．先行词是the one时，只能用that。
This is the one that you want. 这就是你想要的。
7．在以who引导的疑问句后，为了避免重复，只能用that。 Who is the girl that is standing there 站在那边的那个女孩是谁？ 五、在介词后只能用whom，不能用who。
The girl to whom I talked just now is from America. 我刚刚与之谈话的那个女孩是来自美国的。 六、定语从句中主谓一致的问题：
当关系代词在定语从句中作主语时，定语从句中的谓语动词要与先行词的人称和数保持一致(我们要知道，关系代词所代指的就是先行词，这里有一个等量关系)。
Tom is one of the boys who are from the USA. Tom是众多来自美国的男孩中的一个。 Tom is the only boy that is from the USA. Tom是惟一从美国来的男孩。 七、定语从句中的介词与副词的问题：
当关系代词在定语从句中作宾语时，如果定语从句中的谓语动词是不及物动词时，要加介词或副词。(定语从句中的不及物动词加介词或副词构成固定的及物动词短语后，不能把介词或副词提前到关系代词前。) He is the old man who/whom we looked after last year.他是我们去年照顾的那个老人。 That is the book which I am looking for.那就是我要找的书。 八、关系副词when与where的使用：
中考英语定语从句考点
