定语从句二

2020年高考语法考点讲解与真题分析07定语从句（二）考点二“介词+关系代词”引导定语从句“介词+关系代词”在从句中作定语或状语。

能用于这一结构的关系代词只有whom, which, whose三个，whom, which作宾语，whose作定语。

这一结构的中介词由两个方面来确定：与先行词的搭配；与从句谓语动词的搭配。

1. We choose this hotel because the price for a night here is down to $20, half of ________ it used to charge. （2017江苏）A. thatB. whichC. whatD. how【答案】B【解析】这里是“介词+关系代词”引导的定语从句，排除C、D；“介词+关系代词”中，关系代词不能用that，故选B。

2. In 1963 the UN set up the World Food Programme, one of __________ purposes is to relieve worldwide starvation. （2017江苏）A. whichB. itsC. whoseD. whom【答案】C【解析】这里是“介词+关系代词”引导的定语从句，关系词在从句中作定语，修饰purpose，故用关系代词whose。

3. Many young people, most _________ were well-educated, headed for remote regions to chase their dreams. （2016江苏）A. of whichB. of themC. of whomD. of those【答案】C【解析】这里是“介词+关系代词”引导的定语从句，排除B、D；关系代词指代people，故用关系代词whom。

4. Creating an atmosphere ______ employees feel part of a team is a big challenge. (2015浙江)A. asB. whoseC. in whichD. at which【答案】C【解析】这是一个含有定语从句的复合句，关系词在从句中作状语，只能用“介词+关系代词”，先行词是atmosphere，表示“在……氛围中”，应用介词in。

【3】介词+关系词This is(这是) the house in which I lived two years ago(我两年前住过的房子).。

This is(这是) the house where I lived two years ago(我两年前住过的房子).Do you remember(还记得) the day on which you joined our club(你加入我们俱乐部的那一天吗)? Do you remember(还记得) the day when you joined our club(你加入我们俱乐部的那一天吗)?注意：1).介词后面的关系词不能省略。

2).that前不能有介词。

3).某些在从句中充当时间，地点或原因状语的"介词+关系词"结构可以同关系副词when 和where 互换。

【4】关系副词引导的定语从句关系副词可代替的先行词是时间、地点或理由的名词，在从句中作状语。

1）关系副词when, where, why的含义相当于"介词+ which"结构,即：when(= at/on/in which), where(=at/on/in which), why(= for which)，因此常常和"介词+ which"结构交替使用。

例如：There are occasions when （= on which） one must yield. 任何人都有不得不屈服的时候。

Beijing is(北京是) the place where（= in which）I was born(我出生的地方).Is this(这就是) the reason why （= for which）he refused our offer(他拒绝我们帮助的理由吗)? 2）that代替关系副词，可以用在表示时间、地点、方式、理由的名词后取代when, where, why和"介词+ which"引导的定语从句，在口语中that常被省略。

初中定语从句2一、何时用关系副词when, where, why引导定语从句？when 引导定语从句:先行词是表示时间的名词而且是从句动作发生的时间时，用when引导定语从句。

I’ll never forget the day when (= on which ) I met you.This was the time when ( =at which ) he left for Beijing .We will put off the outing until next week, when(=in which) we won’t be busy.where 引导定语从句:先行词是表示地点的名词或含有地点意义的抽象名词而且是从句动作发生的地点时，用where引导定语从句。

This is the town where (= in which ) I spent my childhood.The table at which she is sitting is a new one.I’ll show you the point where you failed.why引导定语从句:先行词是reason并且从句是表示结果时，用why引导定语从句。

This is the reason why ( = for which ) I didn’t come here.The reason ________________ she gave was not true.特别注意：当定语从句缺主语或宾语才直接用which或that引导定语从句。

The library _______________________ students often study was on fire last night.The library, _______ was built in the 1930s,needs repairing.The library _______________ you visited yesterday was built in 1990.I’ll never forget the day _____________________ we first met in the park.I’ll never forget the time ______________ I spe nt on campus.I’ll never forget the time ______________ was spent with you.二、介词+关系代词应注意的情况1. who、that 不能用与介词之后The man who/whom you spoke to was a scientist. The man to whom you spoke was a scientist. The city that/which she lives in is far away. The city in which she lives is far away.2. 在固定短语中介词不能提前Is this the watch that you are looking for? The old man whom I am looking after is better .三、如何确定介词？把先行词接到从句谓语后面去,看需要什么介词1、看定语从句中动词与介词的搭配He is the man _____ whom I think you can depend.The house ____ which he paid 100,000 yuan is very beautiful.2、看定语从句中形容词与介词的搭配He referred me to some reference books ______ which I am not very familiar.This is the hero _____ whom we are proud.3、根据先行词判断，所用的介词与先行词搭配The school ______ which I study is the No. 11 high school.The rate/speed ______ which wild animals are being destroyed has increased.The age______ which children can go to school is seven.4.根据从句中动词与先行词搭配来选用介词，这时是两者兼顾。

定语从句(二)关系代词whose有关注意点:Whose引导定语从句，用作定语，修饰后面的名词：Do you know the man whose name is Wang Yu?This is the house whose owner comes from Japan.其中whose + n.可改写成：of whom / which the + n. Or the + n. of whom / which巩固练习：将下列简单句合并成一个由whose引导定语从句的复合句：1.The woman is very happy. Her son has got the first prize in the contest.2.I like the dictionary very much. Its color is green.3. A child is called an orphan. His parents are both dead.4.The man is my teacher. His bike was stolen.关系代词which / whom有关注意点：请看下面两组句子：This is the book (which / that ) you want.(作动词want的宾语)Suzhou is the city (which / that ) I’m going to pay a visit to.（作介词to的宾语）Suzhou is the city to which I’m going to pay a visit.（介词提前，只能接which）The women (who / whom / that) I met in the bookstore is my aunt. (作动词met的宾语)The woman (who / whom / that ) you were talking to just now is my aunt. (作介词to的宾语）The woman to whom you were talking just now is my aunt. （介词提前，只能接whom）说明：关系代词作定语从句里介词的宾语时，此介词可放置于句中原来位置，这时关系代词可用who, that, whom / which, that, 大多数情况下也可前移至关系代词前面，这时候只能用whom / which.即介词+which / whom;但并不是所有的介词都可移至前面，如果是一些不可拆开的动词短语，如look for, look after 等，介词只能放于原位。

定语从句(1)由关系副词引导的定语从句关系词先行词/ 所指从句成分例句备注关系副词when 时间时间状语I will never forget the day when we metthere.可用on which where 地点地点状语This is the house where I was born. 可用in which why 原因原因状语I can’t imagine the reason why he turneddown my offer.可用for which在定语从句中，如果先行词表示时间、地点、原因，并在从句中作状语，则分别用关系副词when,where,why 或“介词＋关系代词”引导定语从句。

1. He has lost the key to the drawer ________ the papers are kept.2. This was a time ________ there were still slaves in the USA.3．This is just the place __________ I am going to pay a visit these years.4. We are going to spend the Spring Festival in Guangzhou，________ live my grandparents and some relatives.5. Do you know the reason ________ he cried?6. We are living in an age many things are done on computers.当先行词同样表示时间、地点、原因，但关系词在定语从句中作主语、宾语时，则用关系代词which或 that 引导定语从句（作宾语时，关系代词常可省略）。

因此要仔细分析关系词在从句中的句法功能，选择正确的关系词。

定语从句（二）二、关系副词的用法（一）当关系词在定语从句中作状语时，要用关系副词。

其中when=表示时间的介词（in, at, during）+whichwhere=表示地点的介词（in, at, on, under）+whichwhy=表示原因的介词（for）+whichBecause of financial crisis, days are gone, when local 5-star hotels charged 6000 yuan for one night.It is helpful to put children in a situation where they can see themselves differently.Do you know the reason why he is absent? (why=for which)（二）高考对于关系副词when的考察高考试题中对于when的考察趋于复杂化，从先行词为“明显的的地点”转化为“地点的模糊化”。

事实上，对于where这个词，考试不能只理解为表地点。

当先行词表示某人/物的situation,或某事所要发展的stage, 或表达某事的某个方面时都可以用where这个词。

They have reached the point where they have to separate with each other.此用法不仅局限于定语从句，特殊疑问句中的where,名词性从句中的where都有这种用法。

Where will all this trouble lead?That is where you are mistaken.题组训练：用适当的关系词填空16、We are living in an age many things are done on computer.17、I can think of many cases students obviously knew a lot of English words and expressions but couldn’t write a good essay.18、The girl arranged to have piano lessons at the training centre with her sister she would stay for an hour.三、关系代词和关系副词的比较关系代词在定语从句中作主语、宾语、定语或表语，而关系副词在定语从句中作状语。

定语从句(The Attributive Clause)(二)概念：在复合句中修饰某一名词或代词的从句，叫定语从句。

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who, whom, whose, that, which 和关系副词when, where, why等。

一、关系代词who, whom, whose, that, which的用法1、当先行词是人，关系代词作主语时，我们只能用who/ that，且不能省略。

例如：This is the man who/that helped me.2、当先行词是人，关系代词作宾语时，我们只能用whom/ that / who，可以省略。

例如：The doctor (whom/ that / who) you are looking for is in the room.3、当先行词是物时，不论其作主语、宾语，我们都用that/which,当其作主语时，不能省略；当其作宾语时，可以省略。

例如：1) A plane is a machine that/which can fly.2) The noodles (that/which ) I cooked were good.4、当先行词是人或物时,我们用whose来代替my/his/her/its/their。

例如：Do you know the man whose name is Mr. Smith?注：关系代词在从句中作介词宾语时只能用whom, which，whose，可以和介词一起放在先行词和从句之间。

例如：1) The man whom/that my teacher is talking with is my father.→The man with whom my teacher is talking is my father.2) The room that/which I live in is good.→The room in which I live is good.3) The man whose department I once worked in was Mr King.→The man in whose department I once worked was Mr King.但含有介词的短语动词一般不能拆开，介词仍放在有关动词的后面。