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Grammar——定语从句语法图解探究发现①Do you remember the girl who taught us English?②This is the place where he used to live.③Mr. Zhang, who came to see me yesterday, is an old friend of mine.④A middleaged woman killed her husband, which frightened me very much.⑤A young man had a new girl friend, whom he wanted to impress.[我的发现]1．限制性定语从句对被修饰的先行词有限定制约的作用，使该词的含义更具体，更明确，因而不能被省略，否则句意就不完整。
2．非限制性定语从句在句中主要起补充说明的作用，非限制性定语从句与主句之间往往有逗号隔开，独立存在，省略也不会影响整个句子的意思。
一、限制性定语从句限制性定语从句，是对先行词从本质或特征上进行限制的一种定语从句，它所修饰的词代表一个(些)或一类特定的人或事、物。
限制性定语从句与被修饰词之间的关系密切，对其起限定作用，因此不可缺少，否则会影响全句的意义。
限制性定语从句前不用逗号。
引导限制性定语从句的关系代词有：who，whom，that，which，whose；关系副词有：where, when, why。
The gift (that/which) I gave to her is a pet dog.我给她的那份礼物是一只宠物狗。
(the gift 在后面从句中相当于gave的宾语成分，所以关系代词that / which可以省略。
)A man who is lazy can ’t learn much.一个懒的人学不了多少东西。
(a man 在后面从句中相当于主语成分，所以who不能省略。
Grammar——定语从句(Ⅱ)[思维导图]一、关系副词引导的定语从句1.when表示时间，引导的从句修饰时间名词，在定语从句中作时间状语。
I’ll never forget the time when we worked on the farm.我将永远不会忘记我们在农场工作的时光。
2.where表示地点，引导的从句修饰地点名词，where在定语从句中作地点状语。
The hotel where we stayed was very clean.我们住的那个旅馆很干净。
3.why表示原因，其先行词一般是reason，在定语从句中作原因状语。
The reason why he was late was that he missed his train.他迟到的原因是他错过了火车。
二、“介词＋关系代词”引导的定语从句当关系代词在定语从句中作介词的宾语时，我们通常用“介词＋关系代词”引导定语从句。
如果指“人”，用“介词＋whom”；如果指“物”，用“介词＋which”；关系代词有时也用whose(作定语)。
选用介词的依据：1.根据定语从句中谓语动词的搭配习惯(即固定短语)。
Yesterday we visited the West Lake for which Hangzhou is famous.昨天我们参观了西湖，杭州因其而出名。
(be famous for“因……而出名”)2.根据先行词的搭配习惯(约定俗成，不一定是短语)。
This is the camera with which he often takes photos.这就是他经常用来拍照的相机。
(with camera“用照相机”)The boss in whose company Mr King worked heard about the accident.金先生所工作的公司的老板听到了这起事故。
(in the boss’ company)3.根据句子的意思来选择。
Book 1 Unit 4-5 Grammar 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,或代词称为先行词。
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。
关系词的三个作用：1.代替先行词。
2.引导定语从句。
3.在定语从句中充当一个句子成分。
The apple which is red is mind.一、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。
关系代词在定语从句中做宾语时，可以省略。
1.who指人，在从句中作主语或宾语，作宾语时可省略。
The man who is shaking hands with my father is my teacher. (who作从句的主语)正在和我父亲握手的那个人是我的老师。
He is the man (who) I saw yesterday. 他就是我昨天见的那个人(who作从句的宾语)2.whom指人，在从句中作宾语，不能作主语。
常可省略。
The man (whom) you met just now is my father. 你刚刚遇到的人是我父亲。
The teacher (whom) you are waiting for is coming. 你等的那位老师来了。
3.whose既可指人，也可指物。
其后接名词，与先行词构成从属关系，在句中作定语。
This is the scientist whose name is known all over the country. 这就是那位闻名全国的科学家。
Nobody wants the house whose roof has fallen in. 没有人要准感屋顶已经坍塌了的房子。
选修七 Unit5 Grammar 非限制性定语从句【学习目标】复习非限制性定语从句的用法。
【学习重难点】非限制性定语从句与限制性定语从句中关系词的用法区别。
【学法指导】独立完成以下练习，小组讨论疑难。
【学习过程】关系词相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when, where, why 等。
关系词通常有下列三个作用：A 、引导定语从句；B 、代替先行词；C 、在定语从句中担当一个成分。
12(1) Our guide ，who was a French Canadian ，was an excellent cook. (2) Peter, whom you met in London, is now back in Paris. (3) The boy, whose father is an engineer, studies very hard. (4)Water ，which is a clear liquid ，has many uses.(5)These apple trees ，which I planted three years ago ，have not borne any fruit. (6)The play ，whose style is rigidly formal ，is typical of the period. (7)He will put off the picnic until May 1st, when he will be free. (8) They went to London ，where they lived for six months. (9)He didn't tell me the reason, for which he lost his job.3、限制性定语从句和非限制性定语从句的区别：This is the house which we bought last month.这是我们上个月买的那幢房子。
Grammar：The Attributive Clause 语法：定语从句定语从句：在复合句中修饰名词或代词、充当定语的句子叫定语从句。
因其功能相当于形容词，所以又称为形容词性从句。
先行词：被定语从句所修饰的名词或代词。
关系词：引导定语从句的词，也叫引导词。
分为关系代词（who,whom,that,which,whose , as）和关系副词(where,when,why)。
关系词要在定语从句中作某个成分，如主语、宾语等。
限制性定语从句：对先行词起修饰限定作用的定语从句。
非限制性定语从句：对先行词或主句起补充说明作用的定语从句，通常是引导词和先行词之间用逗号隔开。
This is our school where we live and study every day.Find out the relative pronouns （找出关系代词）1. The teachers who are present at our class are all experienced teachers.2. Our class is a big family which consists of 33 girls and 32 boys.3. This is the boy whose English is very good in our class.4. The school where we are studying is very beautiful.5. As we all know, our school is 9 years old.关系词及其意义考点与难点归纳：1.that与which2.对the way的考查3.介词+关系词4.as的使用5.对where的考查6.综合考查考点1：that 与 which高考真题链接：（2007年高考湖北卷第34题）Last night, John was answering the letters ___________________（寄给他的）during th e past two weeks.（arrive）只用that不用which的情况：1:先行词是everything, nothing, anything, much, little, none等不定代词或由不定代词an y, some, no, much, few,little, every, all等修饰时, 引导定语从句用that不用which。
