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高二英语定语从句练习题40题1.The man ____ is standing there is my teacher.A.whoB.whomC.thatD.which答案解析：A、C。
先行词是man，指人，在定语从句中作主语，关系代词可以用who 或that。
whom 只能作宾语；which 只能指物。
2.The girl ____ I met yesterday is very kind.A.whoB.whomC.thatD.which答案解析：A、B、C。
先行词是girl，指人，在定语从句中作宾语，关系代词可以用who、whom 或that。
which 只能指物。
3.The book ____ I bought yesterday is very interesting.A.whichB.thatC.whoD.whom答案解析：A、B。
先行词是book，指物，关系代词可以用which 或that。
who 和whom 只能指人。
4.The pen ____ he is using is mine.A.whichB.thatC.whoD.whom答案解析：A、B。
先行词是pen，指物，在定语从句中作宾语，关系代词可以用which 或that。
who 和whom 只能指人。
5.The woman ____ we saw in the park is a famous singer.A.whoB.whomC.thatD.which答案解析：A、B、C。
先行词是woman，指人，在定语从句中作宾语，关系代词可以用who、whom 或that。
which 只能指物。
6.The house ____ he lives in is very old.A.whichB.thatC.whoD.whom答案解析：A、B。
先行词是house，指物，在定语从句中作宾语，关系代词可以用which 或that。
who 和whom 只能指人。
高二英语定语从句试题答案及解析1. He was very rude to the Customs officer, _____ of course made things even worse.A．who B．whom C．that D．which【答案】D【解析】考查定语从句。
句意：他对海关官员很粗鲁，当然这使得事情更加糟糕了。
which可以代指整个主句的意思，故选D项。
考点 : 考查定语从句2. Helen was much kinder to her youngest son than to the others, ______, of course, made the others envy him.A．who B．which C．what D．that【答案】B【解析】句意：海伦对她的最小的儿子比对其他的孩子要好得多，这使其他的人很是嫉妒。
that和what不能引导非限制性定语从句；这是非限制性定语从句，先行词是前面的句子，故排除A，故选B。
【考点】考查非限制性定语从句的用法。
点评：本题难度适中。
定语从句是高中阶段的重难点之一，需要考生有分析理解复杂的句子结构的能力，能够正确理解句子的语境，熟练掌握关系词的意义及句法功能。
即学即练：This is the man ___ wanted to see you.A. whoB. whichC. whatD. that解析：A。
句意：这就是要见你的那个人3. The factory produces two million pairs of shoes every year, half _______ are sold abroad. A．of which B．which of C．of them D．of that【答案】A【解析】本题考查定语从句。
“逗号”不能连接两个句子，所以所选之词应是连词，排除C项；that不能引导非限制性定语从句，排除D；介词应用在of前。
高中英语定语从句专题一、定义：定语从句（Adjective Clause）在句中做定语，修饰一个名词或代词，被修饰的名词（或词组）我们叫先行词（先行词可以是名词、代词或者名词短语），定语从句不同于普通的关系词引导的从句，它是句子而不是词组，因此定语从句在句中具有其所含的句子成分，即主语、宾语、定语、状语等。
二、基本结构：定语从句主要由关系代词引导，关系代词在从句中担当成分，关系代词有主语、宾语、定语等。
关系代词分指人（who，whom，whose，that）和指物（which，whose）。
三、关系代词的用法：1、that既可代表事物也可代表人，which代表事物；它们在从句中作主语或宾语。
The book that you are reading is mine. which用来代替前面已经提到过的名词，避免重复。
The book, which you can see on the desk, is mine.2、whose不可单独做主语，但可以作为of whom的替代，表所属关系，也可替代并列关系中的of both的部分。
3、whose可与名词一起修饰物。
表变化的名词+ of + which可代替一些由with + adj. + noun所引导的形容词短语。
后跟名词作定语时只能用whose，不能用of which。
例如：The hair whose color was pure gold hung so finely on the upper part of her head that a delicate breeze even moved it.4、which在从句中作主语或宾语；作宾语时常可省略。
which在从句中作定语则不可省略。
如果which在从句中作介词的宾语，注意介词不能放在which的前边，或者干脆省略介词。
例如：The film (which) we saw last night was wonderful.5、who在从句中作主语；whom在从句中作宾语；有时可省略。
完整版)高中英语定语从句讲解及练习定语从句是高中英语的重点知识，也是高考常考点。
本文将主要讲解关系代词引导的定语从句，并解释关系副词引导的定语从句，包括判断关系代词与关系副词限制性和非限制性定语从句等内容，并提供例题讲解。
定语从句在句中作定语，修饰一个名词或代词，被修饰的名词词组或代词即先行词。
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。
它们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。
当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。
例如，当先行词是人时，可以使用who或whom作为关系代词。
如：Is he the man who/that wants to see you?（他就是你想见的人吗？）关系代词在从句中作主语。
而当先行词是物时，可以使用which或that作为关系代词。
如：The package（which / that）you are carrying is about to come unwrapped.（你拿的包快散了。
）关系代词在从句中作宾语。
除了who。
whom。
whose。
that。
which，还有关系副词when。
where。
why等。
关系副词引导的定语从句也可以修饰一个名词或代词。
例如：I still remember the day when we met.（我仍然记得我们相遇的那一天。
）关系副词when在从句中作时间状语，修饰先行词day。
总之，掌握定语从句的用法和关系词的选择是英语研究的重要内容。
通过不断的练和实践，相信大家可以掌握这一技能。
关系副词可以代替时间、地点或理由的名词，在从句中作状语。
例如，关系副词when。
where。
why的含义相当于“介词+ which”结构，因此常常和“介词+ which”结构交替使用。
比如，有时候我们必须屈服，这是任何人都会遇到的情况（There are ns when [on which] one must yield）。
高二英语定语从句高二英语定语从句高二定语从句是？相信很多人都想知道吧？以下是店铺为您整理的高二英语定语从句相关资料，欢迎阅读！高二英语定语从句一、概说定语从句即指在主从复合句用作定语的从句。
定语从句通常修饰名词或代词，对它进行限制、描绘和说明。
受定语从句修饰的词语叫先行词，引导定语从句的词语叫关系词。
关系词按其性质又分关系代词和关系副词。
关系词不仅引导定语从句，同时还在定语从句充当一定的句子成分。
如：The girl who spoke is my best friend. 讲话的姑娘是我最好的朋友。
此句中，who spoke是由关系代词who引导的定语从句，用以修饰先行词the girl，同时who 在定语从句中用作主语。
This is the town where I was born. 这就是我出生的城市。
此句中，where I was born是由关系副词where引导的定语从句，用以修饰先行词the town，同时where在定语从句中用作状语。
二、关系词的用法与辨析1. 关系词的用法关系词分关系代词和关系副词。
关系代词主要的有that, who, whom, whose, which, as 等，其中who和whom 只用于指人，which和as 只用于指事物，whose和 that既可于指人也可用于指物，它们在定语从句可用作主语、宾语、表语或定语；关系副词主要有when, where 和why，其中when表示时间，where表地点，why表原因，它们在定语从句中均用作状语：A plane is a machine that can fly. 飞机是一种能飞行的机器。
(that指物，在从句中用作主语)I have forgotten everything that I learnt at school. 我把学校学的所有东西都给忘了。
(that指物，在从句中句作宾语)The man who lives in that house is my uncle. 住在那座房子里的人是我叔叔。
高二年级英语寒假作业语法专题训练及答案语法专题训练一练习一时态题型专练（一）单项选择1. ( ) Look at that little boy wandering about, perhaps he _____ his mother.A. will loseB. is losingC. had lostD. has lost2. ( ) —Have you got any job offers?—No, I _____.A. waitedB. had been waitingC. have waitedD. am waiting3. ( ) The hotel wasn’t particularly good. But I _____ in many worse hotels.A. was stayingB.stayedC.would stayD. had stayed4. ( ) Population experts predict that most people _____ in cities in the near future.A. liveB. would liveC.will liveD. have lived5. ( ) Teenagers _____ their health because they play computer games too much.A. have damagedB. are damagingC.damagedD. will damage（二）语法填空6. What we used to think ________ (be) impossible now does seem possible.7. —You look very tired. ________ you ________ (sleep) at all last night?— No, not really. I’m tired out now.8. My cousin went to Canada two years ago. He ________ (work) there for a few months and then went to America.9. —What’s wrong with your coat?—Just now when I wanted to get off the bus, the man next to me ________ (sit ) on it.10. My friend, who ________ (serve) on the International Olympic Committee all his life, is retiring next week.11. I ________ (call ) for five minutes; why don’t they come?12. When I was at college I________ (speak )three foreign languages, but I ________ (forget ) all except a few words of each.13. Mary ________ (make ) a dress when she cut her finger.14. Shirley ________ (write ) a book about China’s railway construction last year. But I don’t know whether she has finished it.15. Thank you so much for the Longman English-English Dictionary. I ________ (want ) one for ages.练习二被动语态题型专练（一）单项选择1. ( ) I like these English songs and they _____ many times on the radio.A. taughtB. have taughtC. are taughtD. have been taught2. ( ) —What’s that noise?—Oh. I forgot to tell You. The new machine _____.A. was testedB. will be testedC. is being testedD. has been tested3. ( ) —Do you have any problems if you _____ this job?—Well. I’m thinking about the salary.A. offerB.will offerC. are offeredD.will be offered4. ( ) Though we don’t know what is discussed, yet we can feel the topic _____.A. had changedB. will changeC. was changeD. has been changed5. ( ) I feel greatly honored _____ into their society.A. to welcomeB. welcomingC. to be welcomedD. welcomed（二）语法填空6. Visitors ________ (request) not to touch the exhibits.7. We ________ (tell) that he had already known the accident.8. More patients ________ (treat ) in hospital this year than last year.9. I should very much like to have gone to that party of theirs, but I _______ (not invite).10. Millions of pounds’worth of damage ________ (cause) by a storm which swept across the north of England last night.11. The number of deaths from heart disease will be reduced greatly if people ________ (persuade) to eat more fruit and vegetables.12. The police found that the house ________ (break into) and a lot of things ________ (steal).13. This is Ted’s photo, We miss him a lot. He ________(kill) trying to save a child in the earthquake.14. No decision about any future appointment _______ (make) until all the candidates have been interviewed.15. In recent years many football clubs ________ (run) as business to make a profit.练习三非谓语动词题型专练（一）单项选择1. ( ) _____that she was going off to sleep, I asked if she’d like that little doll on her bed.A. SeeingB. To seeC. SeeD. Seen2. ( ) —Did the book give the information you needed?—Yes. But _____ it, I had to read the entire book.A. to findB. findC. to findingD. finding3. ( ) It is worth considering what makes “convenience” foods so popular, and _____ better ones of your own.A. introducesB. to introduceC. introducingD. introduced4. ( ) As a new driver, I have to practise _____ the car in my small garage again and again.A. parkingB. to parkC. parkedD. park5. ( )Due to the heavy rain and flooding, ten million people have been forced _____ their homes.A. leavingB. to leaveC. to be leftD. being left（二）语法填空6. ________ (lose ) in thought, he almost ran into the car in front of him.7. He got well-prepared for the job interview, for he couldn’t risk ________ (lose) the good opportunity.8. ________ (not receive) the answer, he decided to write another letter.9. Though ________ (invite), he did not attend the dinner party.10. Do you want to see the doctor ________ (send) for from Beijing?11. His victory in the final was no more ________ (convince) than I had expected.12. ― Mum, why do you always make me eat an egg every day?― ________ (get ) enough protein and nutrition as you are growing up.13. Hurry up! He is sure ________ (wait) for us.14. Throughout history, the language ________ (speak) by a powerful group spreads across a civilisation.15. My sister, an inexperienced rider, was found sitting on the bicycle ________ (try) to balance it.参考答案：练习一时态题型专练（一）单项选择1-5 DDDCB（二）语法填空6.was7. Didn’t ; sleep8. worked9. was sitting 10. has served11. have been calling 12.spoke ; have forgotten 13. was making14. was writing 15. have been wanting练习二被动语态题型专练（一）单项选择1-5 DCCDC（二）语法填空6. are requested7. were told8. have been treated9. was not invited 10. has been caused 11. are persuaded 12.had been broken into; were stol en13. was killed 14. will be made 15. have been run练习三非谓语动词题型专练（一）单项选择1-5 AACAB（二）语法填空6. Lost7. losing8. Not having received9.invited 10. to be sent 11. convincing 12. To get 13. to be waiting 14. spoken 15.trying语法专题训练二练习一定语从句题型专练（一）单项选择1. ( ) The Science Museum, _____ we visited during a recent trip to Britain, is one of London’s tourist attractions.A. whichB. whatC. thatD.where2. ( ) All the neighbours admire this family, _____ the parents are treating their child like a friend.A. whyB. whereC. whichD. that3. ( ) By 9 o’clock, all the Olympic torch bearers had reached the top of Mount Qomolangma, _____ appeared a rare rainbow soon.A. of whichB. on whichC. from whichD. above which4. ( ) The village has developed a lot _____ we learned farming two years ago.A. whenB. whichC.thatD. where5. ( ) We shouldn’t spend our money testing so many people, most of _____ are healthy.A. thatB. whichC.whatD. whom.（二）语法填空6. He ________ makes himself a sheep shall be eaten by the wolf.7. I know the reason ________ he was so angry.8. Our hometown is no longer the one ________ it used to be.9. He is a man ________ we should learn from.10. There is a teapot shaped like a Chinese duck, out of ________ mouth tea is supposed to come.11. In the dark street, there wasn’t a single person to ________ she could turn for help.12. He came the day ________ I was out.13. I live in the room ________ he used to live.14. Is this the factory ________ you visited the other day?15. That tree, ________ branches are almost bare, is very old.练习二名词性从句题型专练（一）单项选择1. ( ) The last time we had great fun was _____ we were visiting Water Park.A. whereB. howC. whenD. why2. ( ) Tomorrow is Tom’s birthday. Have you got any idea _____ the party is to be held?A. whatB. whichC. thatD. where3. ( ) The basketball club asked the coach to write an article on _____ the team had failed to win the game.A. whyB.whatC. whoD.that4. ( ) Choosing the right dictionary depends on _____ you want to use it for.A. whatB. whyC. howD. whether5. ( ) _____ matters most in learning English is enough practice.A. WhatB. WhyC. WhereD. Which（二）语法填空6. I can’t decide ________ dictionary I should buy. Both of them are good.7. That’s ________ he refused my invitation.8. I am very interested in ________ he has improved his pronunciation in such a short time.9. _______ we need is more time.10. The fact ________ she had not said anything at the meeting surprised everybody.11. ________ and ________ they will meet has not been decided yet.12. Please tell me ________ you are waiting for.13. Is that _______ you are looking for?14. Would you please tell me _______ the nearest post office is?.15. I don’t know ________ he will agree to the plan or not.练习三状语从句题型专练（一）单项选择1. ( ) Please remind me of the meeting again tomorrow_____I forget.A. thoughB. so thatC. in caseD. until2. ( ) _____ this is only a small town, it's crowded with tourists who come here all year round.A.SinceB. UnlessC. OnceD. Although3. ( ) ― Are you ready for Spain?― Yes, I want the girls to experience that _____ they are young.A. whileB. untilC. ifD. before4. ( ) _____ well prepared you are, you still need a lot of luck in mountain climbing.A. HoweverB. WhateverC. No matterD. Although5. ( ) We’ll have a picnic in the park this Sunday _____it rains or it’s very cold.A. sinceB. ifC. unlessD. until（二）语法填空6. I won’t call you ________ something unexpected happens.7. Leave your key with a neighbour ________ you lock yourself out one day.8. You will be successful in the interview ________ you have confidence.9. How can you expect to learn anything ________ you never listen.10. If you are travelling ________ the customs are really foreign to your own, please do as the Romans do.11. ―Why didn’t you tell him about the meeting?―He rushed out of the room ________ I could say a word.12. ________ they heard the news, they all jumped with joy.13. It is almost five years ________ we saw each other last time.14. Many of them turned a deaf ear to his advice, ________ they knew it to be valuable.15. I was about to leave my house ________ the phone rang.参考答案：练习一定语从句题型专练（一）单项选择1-5 ABDDD（二）语法填空6.that/who7. why8. that9. whom/who/that 10. whose11.whom 12.when 13. where/in which 14. that/which 15. whose练习二名词性从句题型专练（一）单项选择1-5 CDAAA（二）语法填空6. which7. why8. how9. What 10. that 11. When, where 12.who(m) 13. what 14. where 15. whether练习三状语从句题型专练（一）单项选择1-5 CDAAC（二）语法填空6.unless7. in case8. once/if9.when 10. where11. before 12. When 13. since 14.though 15.when。
1．I v_____ took part in a charity program and went to the rural area in Guangxi to train the English teachers there. 2．The material’s inventors say it has a number of possible uses and someday could provide a more environmentally friendly a_____ to plastic.3．From this story, I am firmly convinced of the significance of honesty, which will c_____ to building a warm and harmonious society.4．Schools should e_____ a minimum of one-hour exercise for each student every day to improve their fitness. 5．It has recently been announced that all the music stores nationwide are p_____ from selling pirated（盗版的）CDs.6．Large numbers of fans complained that all the live concert failed to live up to their e_____.7．On this tour we will experience four different m_____ cultures: the Inuit, the Aborigines, the Maoris and Native American Indians.8．She’s an actress whose inner life has remained m_____, despite the many interviews she has given. 9．Failures hurt grown-ups and children a_____, but it can make a difference to your life once you learn to use it. 10．The teachers, students and alumni had a grand meeting in c_____ of the 120 anniversary of our school. 11．The m_____ behind the decision is the desire to improve our service to our customers.12．Last summer, an unexpected storm, with the strong winds a_____ by heavy rain, struck the area.13．You can’t p_____ everything. Often things don’t work out as you expect.14．Now a majority of high school students in China fail to get a_____ sleep during the night so they find it difficult to stay energetic at school.15．The one-day event has been held annually on Nov.11, celebrated with a wide v_____ of deals and discounts from Tmall.16．The official said the safety of up to 400 children in the refugee camp must be g_____.17．We have several stand-up c_____ in our club, who always bring us a lot of laughter and joy.18．---Hello, welcome to the City Transport Lost Property. Can you give us a d_____ of your lost stuff? 19．People in East Africa are dying from a_____, because food shortage is still a big problem there.20．The car driven by Sean Connery in some Bond films will go under the hammer this October and is expected to f_____ over $5 million.【答案】1．voluntarily2．alternative3．contribute4．ensure5．prohibited6．expectations 7．minority8．mysterious9．alike10．celebration11．motivation12．accompanied 13．predict14．adequate15．variety16．guaranteed17．comedians18．description19．starvation20．fetch【解析】1．考查副词。
高二英语定语从句试题答案及解析1. There are two rooms on the first floor, is used as a guest room.A．a small of which B．a smaller of themC．the smaller of which D．the smaller of them【答案】C【解析】考查定语从句。
逗号不能连接两个完整的句子，选项部分又没连词，所以要把句子做成从句。
根据句意可知，该句为非限制性定语从句，其先行词为two rooms，先行词在定语从句中作介词of的宾语，所以of后要用which。
且“两者之中较…”，要用“the+比较级”，所以该题正确答案为C.【考点】定语从句2. About 22.4 percent of all homes in urban areas were lying vacant in China in 2013, the vacancy rate was 1.8 percentage points higher than ________ of 2011 according to the survey. A．one B．itC．that D．which【答案】C【解析】句意：调查显示，2013年在中国城市地区大约22.4%的家庭是闲置的,空置率是高于2011 年1.8个百分点。
这里使用that指代上文的the vacancy rate，one是泛指前面的可数名词单数，it是指代同类同物，which是引导定语从句，所以选C。
【考点】考查代词3. We will be shown around the city: schools, museums, and some other places, _____ other visitors seldom go.A．what B．whichC．when D．where【答案】D【解析】试题分析:句意：我们将被带领着去参观这个城市：学校，博物馆和其他一些地方，这是其他游客很少去的地方。
高中二年级英语定语从句专项练习20题1. The book ______ I bought yesterday is very interesting.Answer: that / which. 中文解析：先行词是“book”（物），在定语从句中作宾语，关系词可用that 或which 。
2. This is the factory ______ we visited last week.Answer: that / which. 中文解析：先行词是“factory”（物），在定语从句中作宾语，关系词可用that 或which 。
3. The dress ______ she is wearing today was bought by her mother.Answer: that / which. 中文解析：先行词是“dress”（物），在定语从句中作宾语，关系词可用that 或which 。
4. The house ______ was built last year is very beautiful.Answer: that / which. 中文解析：先行词是“house”（物），在定语从句中作主语，关系词可用that 或which 。
5. The pen ______ he gave me is very nice.Answer: that / which. 中文解析：先行词是“pen”（物），在定语从句中作宾语，关系词可用that 或which 。
6. The man ______ is standing over there is my English teacher.Answer: who解析：先行词“man”是人，在定语从句中作主语，关系词用“who”。
中文解释：站在那边的那个男人是我的英语老师。
7. The girl ______ you met yesterday is my sister.Answer: whom解析：先行词“girl”是人，在定语从句中作宾语，关系词用“whom”。
专题二定语从句一．三个概念1. 定义：用来修饰某个名词、代词或整个句子的从句就叫做定语从句。
如：The man you talked about is our headmaster. 你们刚才所谈论的那个人是我们的校长This is the bike my father gave me as my birthday present. 这是我父亲送给我作为生日礼物的自行车。
The tree whose leaves are red was planted last year. 那棵红色叶子的树是去年栽的2. 先行词：定语从句所修饰的词就叫做先行词，它一般是由名词、代词或句子充当。
如：The boy who is singing at the stage is only nine years old. 在舞台上唱歌的那个男孩今年才九岁。
Anyone who is willing to help others is welcome to our group. 欢迎任何愿意帮助他人的人参加我们的组织。
His mother is out of danger, which excites their family very much. 他母亲脱离了危险，这件事情使他们家兴奋不已。
3. 关系词：引导定语从句的词就叫做关系词。
根据关系词的用法不同，关系词又分关系代词和关系副词，其中关系代词有that, which, who, whom, whose, as, but等，关系副词有where, when, why等。
关系词既起连接先行词与定语从句的作用，又在从句中作某个成分。
如：Lee is one of the students who are working very hard. 李是一个学习非常努力的学生。
There is nobody but knows you here. 这儿没有不认识你的人。
(but=who...not) He led us to a place where we have never been before. 他把我们带到以前从未去过的地方。
二．如何把两个句子合为含有定从的复合句。
1.The students are working hard.2. Lee is one of the students.步骤1.两个句中相同的词（the students）；2.把用作定语从句的句中的那个词变为关系代词或关系副词，不管它在句中担当什么成分都要用在句首；3.把这个含有关系词的从句放到另一句中相同的词后，定语从句是后置定语。
Lee is one of the students who are working hard.再看两个句子:T his is the factory. I once worked in the factory.This is the factory (which) I once worked in.也可以是：This is the factory where/in which I once worked.三．关系代词和关系副词基本用法根据关系词在定语从句中的不同用法，可分为关系代词和关系副词。
关系代词主要有who, whom, which, that, whose等，在定语从句中作主语、宾语、定语等；关系副词主要有when, where, why等，在定语从句中作状语。
具体用法如下：当先行词指人时，若它在从句中作主语，则用who；若它在从句作宾语，则用whom或who；若它在从句中作定语，则用whose。
如：The man who told me this refused to tell me his name. 告诉我这事的人不肯告诉我他的名字。
The woman whose umbrella you took is very angry about it. 你拿了那个女人的伞，她非常生气。
有时关系代词用that不用which，大致有如下几种情况：1. 当先行词本身是all, everything, anything, nothing, none, little, few等代词时，关系代词原则上用that，不用which，例如：In China, parents always do everything that they can to support their children. 在中国，父母总是尽他们所能来抚养孩子。
I did nothing that might hurt you. 我没有做任何可能伤害你的事。
All that glitters is not gold. 闪光的东西并非都是金子。
2.当先行词被all, every, no, little, few, the only, the very, the right（恰当的）, the last, the same等修饰时，关系代词原则上用that，不用which，例如：Chatting is the only thing that interests her most. 聊天是她唯一感兴趣的事情。
These messages are the very ones that I have been looking for. 这些就是我一直在寻找的信息。
This is the last thing that I want to do. 这是我最不愿意做的事情。
3. 当先行词本身是序数词或形容词最高级，以及被序数词、形容词最高级修饰时，关系代词原则上用that，不用which，例如：It was the largest map that I ever saw. 那是我见过的最大的地图。
When it comes to Jinan, the first that comes to mind is the spring water. 谈到济南时，首先想到的就是泉水。
有时定语从句只能用which引导。
1.非限制性定语从句。
如：The river, which flows through London, is called the Thames. 这条流经伦敦的河叫泰晤士河。
2. which引导定语从句时，它在从句中主要用作主语或宾语，但有时也可用作定语，在意义上大致相当于this或that。
如：We told him to consult the doctor, which advice he took. 我们叫他去看医生，他听取了我们的劝告。
He is studying economics, which knowledge is very important today. 他学经济学，这种知识现今很重要。
3. 介词后只能用whichWater is the natural medium in which fish live. 水是鱼类赖以生存的自然环境。
(注意搭配live in)This is our classroom, in the front of which there is a teacher’s desk.这是我们的教室，前面有老师的讲台。
(注意搭配in the front of our classroom)注意:有时可以见到“介词+关系代词+不定式”这样的结构（可视为一种紧缩的定语从句）。
比较：She must have time in which to grow calm.=She must have time in which she can grow calm. 她必须有冷静下来时的时间。
She had some money in the bank, with which to help her mother.=She had some money in the bank, with which she could help her mot her. 她银行里有些钱用来帮助她的母亲。
关系代词as用于引导限制性定语从句，必须与such, as, the same，so连用，其意为“像……的”“凡是……的”“……一类的人(物)”。
如：He is not such a man as would leave his work half done. 他并不是一个做事半途而废的人。
You must show my wife the same respect as you show me. 你必须对我妻子表现出与对我同样的敬重。
He smokes as expensive a cigarette as he can afford. 他抽一种他买得起的最贵的烟。
也可引导非限制性定语从句，根据情况可位于主句之前或之后，有时也可插在主句中间，其意为“这件事”“这一点”。
如：He is late, as is often the case. 他迟到了，这是经常的事。
As is usual with children, they soon got tired. 孩子们一贯如此，他们很快就厌倦了。
关系副词主要有when, where, why等，在定语从句中作状语，分别表示时间、地点和原因。
when主要放在time, day, years, season, age, occasion等时间的名词后；where 主要放在place, city, town, village, house等地点名词后；why则通常只放在reason 后。
如：Wednesday is the day when the shops are not open in the afternoon. 星期三下午商店不开门。
Give me one reason why we should help you. 给我举出一个我们应当帮助你的理由。
要特别注意，activity,case, point, even, situation, job, organization, position等抽象名词后接where引导定语从句的用法(这是近几年高考的一个新热点)。
如：I don’t want a job where I’m chained to a desk all day.我不想找一份整天坐办公桌前的工作。
Today, we’l l discuss a number of cases where beginners of English fail to use the language properly. 今天，我们将讨论一些英语初学者对英语使用不当的问题。
The treatment will continue until the patient reaches the point where he can walk correctly and safely. 治疗将会持续到病人可以正常且安全地行走。
