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“介词+ which / whom”引导的定语从句“介词+关系代词”引导的定语从句，是定语从句一种介词前置的定语从句句型，介词与关系代词之间存在一种介宾关系。
当关系代词在定语从句中作介词宾语时，把介词置于关系代词前，即演变出“介词+关系代词”句型。
例如：The man who/whom /that you spoke to is a teacher.=The man to whom you spoke is a teacher.一、基本构成1.“介词+关系代词”结构引导的定语从句中，关系代词只能用which（指物）或whom(指人) ，即：介词+which/whom。
（1）The man to whom you spoke is a teacher.（2）The city in which she lives is far away.（3）The little girl is reading a book,in which there are many cartoons.注意：当介词放在关系代词的前面时，用在介词后的关系代词不能省略。
；2.在限制性定语从句中，当介词置于定语从句的谓语动词之后时，可用that/which(指物)；that/who/whom（指人）作介词的宾语.且此处关系代词可以省略，特别是在口语中。
如：（1) The man (who/whom /that )you spoke to is a teacher.（2）The city（which/that）she lives in is far away.注：通常介词放在定语从句中动词后，也可以放在关系代词前面，但有些特殊动词短语搭配不能拆分，介词只能放在动词后，如：look for, look after, pay attention to ,take care of , look forward to, listen to 等。
考点18＂介词＋关系代词＂引导的定语从句高考频度：★★★☆☆考向一＂介词+关系代词＂引导的定语从句●＂介词＋关系代词＂的用法当关系代词在定语从句中作介词宾语时，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＂。
●＂介词＋关系代词＂结构中介词的选用1.一般来说，确定关系代词前的介词，可以从以下三方面入手：①先行词的意义；②从句中的动词或形容词与先行词的固定搭配；③句子的意思。
☞I’ll never forget the time during which I spent my childhood i n the country.我永远不会忘记孩童时代我在乡村度过的时光。
2.表示＂整体和部分关系＂，介词常用of。
在some，any，few，none，all，both，neither，most，each等代词或数词的前、后可以用of which/whom。
☞John invited about 40 people to his wedding，most of whom are family members.约翰邀请了大约40人参加他的婚礼，他们当中绝大部分是家庭成员。
3.有时＂介词＋where＂可以引导定语从句，此时要和＂介词＋which＂引导的定语从句从意思上加以区别。
☞His head soon appeared out of the window，from where he saw nothing but trees.他的头很快从窗口探了出来，从那里除了树木他什么也看不到。
(from where相当于from out of the window，而不是from the window)●在定语从句中，含介词的短语动词不可拆开使用(短语拆开后含义发生变化)，如look after, look for等。
●＂of which / whom＂有时可以用＂whose＋名词＂结构来改写。
高中英语语法“介词+which/whom”引导的定语从句“介词+关系代词”引导的定语从句，是定语从句一种介词前置的定语从句句型，介词与关系代词之间存在一种介宾关系。
当关系代词在定语从句中作介词宾语时，把介词置于关系代词前，即演变出“介词+关系代词”句型。
例如：The man who/whom/th at you spok e to is a teacher.=The man to whom you spok e is a teacher.一、基本构成1.“介词+关系代词”结构引导的定语从句中，关系代词只能用which（指物）或whom(指人)，即：介词+which/whom。
（1）The man to whom you spok e is a teacher.（2）The city in which she lives is far away.（3）The little girl is reading a book,in which there are many cartoons.注意：当介词放在关系代词的前面时，用在介词后的关系代词不能省略。
2.在限制性定语从句中，当介词置于定语从句的谓语动词之后时，可用that/which(指物)；that/who/whom（指人）作介词的宾语.且此处关系代词可以省略，特别是在口语中。
如：（1)The man(who/whom/that)you spok e to is a teacher.（2）The city（which/that）she lives in is far away.注：通常介词放在定语从句中动词后，也可以放在关系代词前面，但有些特殊动词短语搭配不能拆分，介词只能放在动词后，如：look for,look after,pay attention to,take care of,look forward to,listen to等。
This is the pen(that/which)you are looking for.The patient(who/whom/that)she is looking after is her father.The words that/which we should pay attention to are written on the blackboard.There are fifty patients who/whom/that we must take good care of.二、关系副词when，where，why可用“介词＋which”来代替。
一行二动三意义纵观10年来各地高考试题对定语从句的考查，越来越突出能力立意，通过一系列的增元、减员，前置等变换手段来考查.定语从句中关于“介词+关系代词”引导定语从句时介词的选择则更是令众多考生十分头疼的一大难题。
之所以难，主要在于难以选出合适的介词。
应对“介词+关系代词”中介词如何选则这一难题，笔者根据教学经验,总结出一套行之有效的秘诀:“一先二动三意义”.一、一先,即先杀先行词。
从先行词下手。
介词往往和先行词构成固定搭配。
杀题背景：当先行词往往是那些表示时间、地点、原因、方法、工具等的词时,它们与介词之间有一定的固定联系，多用这种方法。
(比如时间常和on; in、by搭配，地点常用on; in; at，原因用for，方式用in； by; with等等) eg： The pencil _____C__he used to write is broken。
A. in which B. by which C。
with which D。
with that解题:考的是“介词+关系代词”结构，关系代词指物的话用which,指人whom，先把D选项排除了。
剩下这三项选择哪个呢？我们先从先行词下手，pencil是工具范畴,介词搭配一般用with，选择C。
【牛刀小试】Many people who had seen the film were afraid to go to the forest when they remembered the scenes ___A___ people were eaten by the tiger. (2005广东卷） A。
in which B. by which C. which 解题：when 引导时间状语从句“在那个情景中，人被老虎吃掉"。
先行词scene情景，场合，属于“时间，地点”类型的词。
符合我们杀题三部曲之第一部曲的杀题背景。
我们说在情景中，在场合下，搭配的介词是in ，in the scenes 选择A .二、杀题第二部曲-———二动。
浅析“介词+关系代词”引导的定语从句英语中“介词＋关系代词”引导定语从句的现象很多，同时也较复杂，同学们必须多加注意。
其要点如下：1．在定语从句中，当关系代词作介词的宾语时，可以把介词移到关系代词的前面；但为了使关系代词紧跟它所修饰的先行词，也可以把介词放在从句中有关动词的后面。
如：This is the room in which we lived last year．（或：This is the room which we lived in last year．）这就是我们去年居住的房子。
Who's the comrade with whom you just shook hands？（或：Who's the comrade whom you just shook hands with？）你刚才和他握手的那个人是谁？2．“介词＋关系代词”结构中的关系代词只能用whom或which，不可用 that。
如：The old Olympic Games from which the modern games came began around the year 776 BC in Greece ．古代奥运会于公元前776年开始于希腊，现代奥运会就起源于那里。
What did the football player to whom you were talking want？你刚才和他谈话的那个足球运动员想要什么？This is the ring on which she spent 1，000 dollars．这就是她花 1000美元买的那枚戒指。
当介词跟在动词之后，不前移时，关系代词可以用that。
The pencil with which he was writing broke ．（＝The pencil which ／ that he was writing with broke ．）他写字用的铅笔折了。
高中英语语法“介词+ which / whom”引导的定语从句“介词+关系代词”引导的定语从句，是定语从句一种介词前置的定语从句句型，介词与关系代词之间存在一种介宾关系。
当关系代词在定语从句中作介词宾语时，把介词置于关系代词前，即演变出“介词+关系代词”句型。
例如：The man who/whom /that you spoke to is a teacher.=The man to whom you spoke is a teacher.一、基本构成1.“介词+关系代词”结构引导的定语从句中，关系代词只能用which（指物）或whom(指人) ，即：介词+which/whom。
（1）The man to whom you spoke is a teacher.（2）The city in which she lives is far away.（3）The little girl is reading a book,in which there are many cartoons.注意：当介词放在关系代词的前面时，用在介词后的关系代词不能省略。
2.在限制性定语从句中，当介词置于定语从句的谓语动词之后时，可用that/which(指物)；that/who/whom（指人）作介词的宾语.且此处关系代词可以省略，特别是在口语中。
如：（1) The man (who/whom /that )you spoke to is a teacher.（2）The city（which/that）she lives in is far away.注：通常介词放在定语从句中动词后，也可以放在关系代词前面，但有些特殊动词短语搭配不能拆分，介词只能放在动词后，如：look for, look after, pay attention to ,take care of , look forward to, listen to等。
“介词+关系代词”引导的定语从句在定语从句的学习中, “介词+关系代词”引导的定语从句很常见也很重要.然而如何正确的运用介词对于初学者来说是一个难点,现在我将其用法总结如下,希望对于大家掌握该知识点有所帮助.一介词的选用是根据定语从句中谓语动词的习惯搭配来确定。
This is the book on which I spent 8 Yuan.This is the book for which I paid 8Yuan.二介词的选用是根据先行词的习惯搭配来确定。
2000 was the year in which my son was born.Oct 1st ,1949 was the date on which the PRC was founded.三如果表示“所有格”或“整体与部分关系”时用介词of.He traveled the world for two years, of which the sailing time was 2 months.This is the book of which the cover is blue.一.对比观察和领悟1. This is the girl with whom I came to school.This is the girl to whom I often write.This is the girl from whom we got much help.This is the girl of whom I used to dream.This is the girl about whom they talked2. Yesterday I went to the bookstore for the book, for which I paid three dollarsYesterday I went to the bookstore for the book, on which the writer had signedhis name.Yesterday I went to the bookstore for the book, to which I was asked to pay attention. Yesterday I went to the bookstore for the book, of which we are fond.Yesterday I went to the bookstore for the book, about which our teacher had talked二.实战演练1. He is the man _________ you can turn for help.2. Is this the book _________ you paid ten yuan?3.The farm_____ we worked ten years ago isn’t what is used to be.4. This is the factory _____________ he worked ten years ago5. It was in 1952 and Mandela was the black lawyer _______ I went for advice.6. He was generous with his time, ________ I was grateful.7. The parts of town _________ they had to live were decided by white people.8. We were put into a position _________we had either to accept we were less important, or fight the government.Keys: 1.to whom 2. for which 3.on which 4.at which5. to whom6.for which7.in which8.in which。
定语从句——介词关系代词介词关系代词定语从句定语从句——介词+关系代词根据表达意思的需要，定语从句有时需要以适当的介词开头。
此时，如果被定语从句所修饰的先行词表示的是除人以外的词，定语从句由“介词，which”引导。
如果被定语从句所修饰的先行词表示的是人，定语从句则要由“介词，whom”引导。
例如: The bag in which there are some books is mine. 里面装有一些书的那只包是我的。
The girl about whom we often talk is coming tomorrow. 我们常谈起的那个女孩明天来。
在使用该类定语从句时，我们要注意以下几点:1. 在“介词+关系代词”引导的定语从句中，介词可以放在关系代词前或从句中有关动词后。
介词放在从句中谓语动词后面时，whom/which可以省略，也可以用that替换，whom还可以用who替换。
例如:Great changes have taken place in the village in which I once lived. 我曾经住过的那个村庄发生了巨大的变化。
(关系代词前)Great changes have taken place in the village (which/that) I once lived in.(动词后，which/that可省略)2. 在一些固定搭配的短语中，若将动词和介词分开，意思就会发生变化，所以该介词只能放在从句中的谓语动词后。
例如:depend on，get along with，look after，look forward to，take part in等。
例如:The boy (whom / who) I’m looking af ter is my neighbor. 我正在照顾的那个男孩是我的邻居。
3. 当先行词是way时，关系代词可以用that或in which，也可以省略。
语法由介词+关系代词引导的定语从句1. 介词+关系代词中介词的位置关系代词whom，which，whose在从句中作介词宾语时，可以跟介词一起放在从句与主句之间（that，who不可以），也可以把介词放在从句中有关动词的后面，使关系代词紧跟它所修饰的先行词。
例如：He is a man of rich experience, from whom much can be learned.=He is a man of rich experience, whom much can be learned from.他是个经验丰富的人，从他那里能学到很多。
The school in which he once worked is a key school.=The school (which/that) he once worked in is a key school.他曾经工作过的学校是一所重点学校。
The manager in whose company I work pays much attention to improving our working conditions.=The manager whose company I'm working in pays much attention to improving our working conditions.我就职的那家公司的经理十分注意改善我们的工作条件。
2. 介词+关系代词的常见结构(1) 介词+which/whom例如：This is the famous singer about whom we have often talked.这就是那位我们经常谈论的著名歌唱家。
Fortunately we had a map, without which we would have got lost.很幸运，我们带了一张地图，如果没有的话，我们就会迷路了。
