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1、初中定语从句，宾语从句，状语从句讲解初中定语从句讲解及练习定义：在复合句中，修饰某一名词或代词的从句叫做定语从句。如：1) The man who lives next to us is a policeman. 2) You must do everything that I do. 上面两句中的man和everything是定语从句所修饰的词，叫先行词，定语从句放在先行词的后面。引导定语从句的词有关系代词that, which, who(宾格who, 所有格whose)和关系副词where, when、why关系词常有三个作用：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
2、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. 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.
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. ( which 在句子中做主语) (2) This is the pen (which) he bought yesterday. ( which 在句子中做宾语)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 people that/who come to visit the city are all here. (在句子中做主语) (6) W
4、here is the man that/whom I saw this morning? (在句子中做宾语)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 br
5、oken 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、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 bri
6、ng here a magazine (that/which) you asked for.(4) tomorrow i will bring here a magazine for which you asked.(5) well go to hear the famous singer (whom/that/who) we have often talked about.(6) well 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 af
7、ter, 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；(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 w
8、hich 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,
9、 some of which have gone bad.(3) there are forty students in our class in all, most of whom are from big cities.解答介词+关系代词 类型的定语从句题时，关键在于分析定语从句中的谓语动词（该动词是不及物动词）习惯上常与什么介词搭配使用。这就需要同学们在平时学习时要注重某些不及物动词和介词惯用的情形，并要灵活运用。例如：in the dark street, there wasnt a single person _ she could turn for help.a. that b.
10、who c. from whom d. to whom简析:本题定语从句中的turn 与介词 to 构成固定短语turn to sb. for help (向某人求助）。所以，d是正确选项。定 语 从 句 练 习1. The bridge _ a big ship can go has been built. A. under which B. under that C. in which D. on which 解析：考查定语从句随意性关系引导词。基本常识：定语从句随意性关系引导词由搭配介词+which/whom构成，先行词指人用前者，先行词指事/物用后者。定语从句引导词的判断方法为将先行词
11、想方设法放入从句，使从句成为一个完整且有先行词成分的陈述句。 此句中，先行词为the bridge; 从句为a big ship can go, 二者构成的完整句为 A big ship can go under the bridge. 因此， 答案为A2. The book _ is torn is mine. A. the cover of which B. the cover of that C. which the cover D. whose cover of 解析：考查定语从句随意性关系引导词以及所属关系引导词。 此句中先行词为the book, 从句应为cover is torn
12、, 二者构成的完整句为the cover of the book is torn. 因此随意性关系引导词结构为the cover of which或所属关系引导词结构whose cover. 因此，答案为A3. He talked about the classmates and the school _ he had visited. A. who B. that C. which D. about which 解析：考查先行词即指人又指物的定语从句相同意思引导词。定语从句相同意思引导词基本要点，无论限定性还是非限定性定语从句的主宾表引导词均为相同意思引导词。 限定性定语从句中，相同意思引导
13、词有一般引导词who, whom, which以及通用引导词that. 先行词指人，作从句主语用who, 作从句定语或作从句中介词的宾语均用引导词whom, 先行词指物， 用引导词which, 限定性定语从句中，作相同意思的引导词均可以用that替代。此外，限定性定语从句中作宾语的引导词可以省略。非限定性定语从句中，相同意思引导词只能为一般引导词who/whom/which， 不能用通用引导词that.非限定性定语从句中，前一完整句在从句中作主宾表成分时，也要看作是定语从句相同意思引导词，先行词指事物的情况，用引导词which.此句中，先行词为the classmates and the sc
14、hool， 从句为he had visited, 二者构成的完整句为He had visited the classmates and the school. 所以不难发现先行词在限定性定语从句中作visited的宾语使用，先行词既指人又指物。 因此，答案为B4. You have seen the girl _ sister is a Chinese teacher. A. whom B. of whom C. whose D. of which 解析：考查定语从句所属关系引导词。此句先行词为the girl，定语从句为sister is a Chinese teacher，二者构成的完整句
15、为The girls sister is a Chinese teacher. 先行词的s所有格构成的所属关系结构在从句中作定语。因此， 答案只能为C.定语从句固定关系引导词相关要点：先行词在定语从句中除作从句主宾表成分以外的成分，均为相关意思引导词，其中包括固定关系引导词和随意性关系引导词。固定关系引导词只有when(时间关系)，where（地点关系），why(先行词为the reason,原因关系）whose（所属关系，包括s所有格关系和of 所有格关系，由whose修饰的名词成分前不能用冠词成分，whose应为名词的前置性定语成分）；随意性关系引导词为相关搭配介词+which/whom构成的引导词结构充当。5. We should do all _ is useful to people. A. / B. that C. it D. which 解析：考查限定性定语从句中先行词为不定代词的相同意思引导词。 此句中先行词all为不定代词，从句为is useful to people，从句缺主语， 二者构成的完整句为All is useful to people.为了便于理解，All =All the things/
