必修一Unit5定语从句

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【课件】Unit5+定语从句关系副词课件高中英语人教版必修第一册

when 引导定语从句时, 先行词为表示时间的名词 ( time, day, year, moment ), 关系词在从句中作时间状语，相
当于“介词+_w_h__i_c_h__ 。
二，关系副词引导的定语从句
Her father was old and weak. That was the reason __w_h_y____ Mulan took the place of him. for＋ the reason
3.I'll never forget the day_w_h_e_n_ we met each other last week. 4. I still remember the night _w_h_e_n_I first came to the house. 5. I don't know the reason why he looks unhappy today.
二、“介词+关系代词”引导的定语从句
关系副词when, where, why引导定语从句时, 关系副词也可用“介词+关系代词”代替。
3．why 指原因，在定语从句中作原因状语。
Unsuccessful people can always find reasons why they’re not doing well. 不成功的人总能找到自己表现不好的理由。
关系副词
关系副词指代在从句中充当的成分
例句
when time where place why reason
判断先行词在从句中的成分，用正确的关系词填空。
This is the place _w__h_i_ch__/t_h_a_t__ we visited last year. This is the place ____w_h__er_e____ he works.

必修一unit5 定语从句

as 引导的限制性定语从句
Please complete the following sentences and compare:
as This is such an interesting book ____ we all like. as This is so interesting a book _____ we all like.
定语从句语法归纳
注意: 连接词有九个注意 1.连接词有九个 which, that, who,
whose, whom, as, when, where, why
2. 在定语从句中的as意思是 “正如”. 在定语从句中的as意思是正如”
As is known to all,
关系副词
When=in/on/at + which Where=in/on/at + which Why=for which
1.
a ①Is this the factory _____ you visited last year? d ②Is this factory ____ you visited last year? ③ Is this the factory ____ you lived last c year?
as 1. the same…as
2. such+n.+ as 3. as+adj.+as 4.As sb. knows/as is known to all一般用一般用与句首 5.如用于句中前有逗号如用于句中,前有逗号如用于句中前有逗号,as=which He must be from Africa, as can be seen from his skin.

人教版高一英语 unit5 book1学生版定语从句

Attributive Clause（II）（for students）定语从句（Ⅱ）一概述关系代词在定语从句中作主语，宾语或定语等，常见的关系代词有________ ________ _______ _________ ___________ 及as.关系副词在定语从句中作状语，一般不可省略。

常见的关系副词有when, where, why.正确选择关系代词which/that或关系副词when/where的关键在于：关系词在定语从句中充当什么成分。

比较以下两组句子：(which/that ) I visited last year. (which/that 作___________)1）I returned to the citywhere I grew up. (where作______________)(which/that) we spent together. (which/that作________) 2）I will never forget the dayswhen we worked together. (when 作_____________)二关系副词引导的定语从句1. 关系副词when引导when 在定语从句中作时间状语，从句修饰的是表示时间的名词。

eg: 1）The day when Nelson Mandela helped me was one of my happiest.翻译：______________________________________________________________2）The time when I first met Nelson Mandela was a very difficult period of my life.翻译: ________________________________________________________________2. 关系副词where引导where在定语从句中作地点状语，定语从句修饰的是表示地点的名词。

新外研社(19)高中英语必修一Unit5Into the wild单元知识总结

新外研社（19）高中英语必修一Unit5Into the wild单元知识总结（一）短语1.seek for （=search for）寻求2.take measures to do sth.采取措施做某事3.be determined to do sth.决心做某事4. solution to ……的解决办法5.have an effect on 对……有影响6.kill two birds with one stone 一举两得；一箭双雕7.hold your horses 慢点；别急8.rain cats and dogs 下倾盆大雨9.brave the elements 不顾恶劣天气；冒着风雨10.concentrate on 全神贯注于11.stare at 盯着；凝视着12.after all 毕竟；终究13.react to 对…..作出反应14.react with 和….发生反应15.a variety of （=varieties of ）各种各样的16.when the cat’s away(the mice will play)猫儿不在，老鼠作怪（管事的不在，下边的人玩儿的痛快）17.be amazed at/by 对….感到惊讶18.crash into /onto 撞上；坠毁19.cut down 缩减；缩小（尺寸；数目）；砍到（树）20.raise the awareness of ..提高……的意识21.recover from 从…..恢复过来22.be shocked to do sth.做某事很吃惊23.from one place to another 从一地到另一地24.manage to do 达成；设法完成25.find one’s way to 找到去….的路26.in the past/last few yeas 近几年来（常与现在完成时态连用）Eg. Its population has crashed by as much as 90% in the last few years.27.feed on 以…..为食28.at a speed of 以……速度29.from time to time 不时；偶尔30.interact with 和….互动31.a long time to come 未来的相当长时间32.in the still lake 在平静的湖里33.except for 除了Your composition is good except a few spelling mistakes.(除了….总体是好的)34.a symbol of ……的象征35.be based on 根据（二）句型1.定语从句：a time when…一个……的时期The solution to the mystery of the monarch’s amazing ability comes at a time when it is in serious trouble.2.同位语从句：…a feeling that …一种…..的感受While I was concentrating on photographing this amazing scene,I suddenly had a feeling that I was being watched.3.强调句型It is /was +被强调部分+that/who +句子剩余部分It is after all we who are the visitors to their world.4.the +比较级，the +比较级越……,就越…..The more we know about this lovely creature, the greater the chance it will survive.(同时也要注意前后句的时态)（三）重点词汇&短语①I am always seeking to improve my teaching method.我一直在设法改进我的教学方法。

洛阳市高中英语必修一Unit5LanguagesAroundtheWorld知识点总结归纳

洛阳市高中英语必修一Unit5LanguagesAroundtheWorld知识点总结归纳单选题1、We will never forget the days ________ I was taken good care of in that village.A．thatB．whichC．whenD．where答案：C考查定语从句。

句意：我们将永远不会忘记我在那个村子里受到照顾的日子。

A. that那个，引导从句；B. which 哪个；C. when在那时；D. where在哪里。

根据句子结构，此句是定语从句。

先行词是the days，缺少关系词，在从句中作时间状语，故用when引导。

故选C。

2、Later in this chapter the case will be introduced to readers ______ consumers’ support became a stream of motivation f or improvement of the company.A．whoB．whenC．whichD．where答案：D考查定语从句关系词。

句意：之后，在这章中，这种案例将会被介绍给读者，在这种案例中，消费者的支持变成了对于公司提升的一股激励的清泉。

A. who谁，指代人；B. when什么时候，指代时间；C. which哪一个，指代物；D. where什么地方，指代地点。

分析从句结构，主语consumers’ support消费者的支持，系动词became 变成，表语a stream of motivation一股激励的清泉，结构完整，考虑关系副词。

限制性定语从句修饰主句先行词case，在从句中作状语成分in the case，表示抽象地点，故选D。

3、The White Horse Temple, ________ back to the Eastern Han Dynasty, has a history of more than 1,900 years.A．datesB．datedC．datingD．to date答案：C考查非谓语动词辨析。

Unit 5 定语从句关系副词 21-22高一外研版必修第一册

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3．根据句子的意思来选择。 The colorless gas without which we cannot live is called oxygen. 这种无色的、离了它我们就无法生存的气体是氧气。
4．表示“所有”关系或“整体中的一部分”时，通常用介词of。 I have about 10 books，half of which were written by Mo Yan. 我有大约10本书，其中一半是莫言写的。 [名师点津] 在定语从句中，有一些含介词的动词短语不可拆开使用，如 look after，look for等不能把介词移至which或whom之前。
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本节B内y容e结-b束ye!
12
8
Ⅱ.单句改错(每小题仅有1处错误)
1．This is the house which I lived wlahsicth→yewarh.e_re___________
2．The old woman with who you talked just nowwho→iswhoam famous
artist.____________
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。
5．Is this the car for that you paid a high price？____________

英语必修一unit5-定语从句

yesterБайду номын сангаасay.)
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用介词加关系代词填空。
1.The reason_f_o_r__w_h_i_c_h_they did it is quite clear.(根据
名词判断介词
2.That is the hill__a_t __the foot__o_f__ _w_h_i_ch__ they had a
4. Did you see the pen that/which I lost yesterday? 5. The book that/which is about the USA has been lost. 6. I live in a house whose windows face north.
sure. (根据形容词判断介词)
4.I still remember the time when he left. at which
5.That is the place where he was born. in which
6.I haven’t known the reason why he didn’t attend the
school?
4
关系副词的用法小结
when
先行词：地点
where
why
先行词：表时间成分：状语
= 介词+先行词 = 介词+which
先行词： the reason = for which
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用下列关系副词where,when,why填空。
1.That's the day__w_h_e_n__he did the experiment. 2.This is the desk __w_h_e_r_e_I put the book. 3.That is the bus stop _w_h_e_r_e__I waited for you that day. 4.I still remember the time_w_h_e_n__he left. 5.That is the place__w_h_e_r_e_he was born. 6.I haven’t known the reason __w_h_y__he didn’t attend the meeting yesterday.

高中英语人教必修一Unit1-5定语从句整理

Unit 1-5定语从句整理Unit 1:1.Do you want a friend whom you could tell everything to (=to whom you could tell everything)?2.There was a time when a deep blue sky, the song of the birds, moonlight and flowers could never have kept me spellbound.3. It was the first time in a year and a half that (=when) I had seen the night face to face.4. I am only able to look at nature through dirty curtains hanging (=which hang)before very dusty windows.Unit 2:1. At first the English spoken(=which was spoken)in England was very different from the English spoken today.2. English became less like German because those who ruled (=ruling)England spoke first Danish and later French.3. Today the number of people learning (=who learn) English in China is increasing rapidly.4. Many people believe the English spoken (=which is spoken) on TV and the radio is standard English.5. Those who reported (=reporting) the news were expected to speak excellent English.6. However, on TV and the radio you will hear differences in the way(that/ in which) people speak.7. Some people who live (=living) in the mountains of the eastern USA speak with an older kind of English dialect.8. The USA is a large country in which (=where) many different dialects are spoken.Unit 3:1. They are Dai and grew up in western Yunnan Province near the Lancang River, the Chinese part of the river that is called (=called) the Mekong River in other countries.2. We found a large atlas with good maps that showed (=showing) details of world geography.3. It makes wide bends or meanders through low valleys to the plains where (=in which) rice grows.4. Along the way children dressed (=who were dressed) in long wool coats stopped to look at us.5. We will reach Dali in Yunnan Province soon, where (=in which) our cousins will join us.Unit 4:1. It was a night (that/ when/ at which)the earth didn’t sleep.2. But the one million people of the city, who thought little of these events, were asleep as usual that night.3. It was felt in Beijing, which (=and it) is more than two hundred kilometers away.4. A huge crack that (=which) was eight kilometres long and thirty metres wide cut across houses, roads and canals.5. The number of people who were killed or seriously injured reached more than 400,000.6. Later that afternoon, another big quake which (=that)was almost as strong as the first one shook Tangshan.7. The army organized teams to dig out those who were trapped and to bury the dead.8. Workers built shelters for survivors whose homes had been destroyed.9. Your speech was heard by a group of five judges, all of whom (=and all of them) agreed that it was the best one this year.10. Next month the city will open a new park to honour those who died in the terrible disaster.11. The park will also honour those who helped the survivors.12. As you know (=As is known), this is the day(that/when/on which) the quake happened eight years ago.Unit 5:1. The time when (=that) I first met Nelson Mandela was a very difficult period of my life.2. Mandela was the black lawyer to whom I went for advice (=whom I went to for advice).3. He was generous with his time, for which I was grateful (=which I was grateful for).4. The school where (=in which) I studied for only two years was three kilometres away.5. However, this was a time when one had got to have a passbook to live in Johannesburg.6. The day when (=that/ on which) Nelson Mandela helped me was one of my happiest.7. Until today we have reached a stage where (=in which) we have almost no rights at all.8. The parts of town in which (=where) they had to live were decided by white people.9. The places outside the towns where (=in which) they were sent to live were the poorest parts of South Africa.10. We were put into a position in which (=where) we had either to accept we were less important, or fight the government.11. We first broke the law in a way which (=that) was peaceful.12. It was a prison from which no one escaped (=which no one escaped from).13. Mr Mandela began a school for those of us who had little learning.14. He taught us during the lunch breaks and the evenings when (=that)we should have been asleep.15. We read books under our blankets and used anything (that) we could find to make candles to see the words.16. I felt bad the first time (that/ when) I talked to a group.17. I remembered the beatings and the cruelty of the guards and my friends who had died.。

高中英语新人教版必修一Unit 5定语从句精讲

高中英语必修一Unit 5定语从句精讲【课本例句】1.(教材P62)There are many reasons why this has been possible, but one of the mainfactors has been the Chinese writing system.2.(教材P62)Emperor Qinshihuang united the sevenmajor states into one unified country where Chinesewriting system began to develop in one direction.3.(教材P64)I told my mum that I wanted to give up,and that I would never live ina country whereGerman was spoken.4.(教材P64)I finally understood the reason why my mum had encouraged me not to give up.5.(教材P68)Then I saw an advertisement that offereda wonderful summer course, and that was the day whenI decided to take on a new language.6.Thetime when I first met Nelson Mandela was avery difficult period of my life.【发现规律】1.所有画线部分都是关系副词引导的定语从句。

2.关系副词when在定语从句中作时间状语(第5、6句)。

3.关系副词where在定语从句中作地点状语(第2、3句)。

4.关系副词why在定语从句中作原因状语(第1、4句)。

河南省高中英语必修一Unit5LanguagesAroundtheWorld知识点汇总

河南省高中英语必修一Unit5LanguagesAroundtheWorld知识点汇总单选题1、It is in this very town, __________Tom was born 40 years ago, __________he will build a new school, __________excite s everyone in the town.A．that; that; whichB．that; where; thatC．where; that; whichD．where; when; that答案：C考查强调句和定语从句。

句意：正是在这个40年前汤姆出生的小镇上，他将建造一所新学校，这使镇上的每个人都感到兴奋。

第一空引导定语从句，先行词是town，从句缺少地点状语，应用关系副词where引导；第二空与前文“It is in this very town”构成强调句，强调地点状语“in this very town”，应用that；第三空引导非限制性定语从句，先行词是school，从句缺少主语，应用关系代词which引导。

故选C项。

2、He is an expert on rice planting ______ the local Zhuang people have learnt a lot.A．by whichB．from whomC．by whomD．from which答案：B考查定语从句。

句意：他是一个水稻种植专家，当地的壮族人从他那儿已经学会了很多。

分析句子成分可知，这是一个限制性定语从句，先行词expert，意为“专家”；又根据固定搭配learn sth. from sb. 意为“从某人那儿学到……”，所以应该用介词from；因此本句中，先行词为expert，指人，关系代词放在介词之后只能用whom，做定语从句的介词宾语。

故选B项。

3、The reason ________ he didn’t come to school on time is ________ he had to take care of his sick brother at home.A．That; becauseB．that; thatC．why; becauseD．why; that答案：D考查定语从句和表语从句。

高一英语_unit_5_定语从句巩固训练_新人教版必修1

高一（上）定语从句1.This is the place _______he works.This is the place __________we visited last year.2.That was the time ______he arrived.Do you still remember the time _________ we spent together?3.This is the reason ______________he went.The reason __________he gave us was quite reasonable关系代词前介词的确定1.根据从句中动词与先行词的逻辑关系，请体会：e.g.Is that the newspaper for which you often write articles？2. 根据从句中动词或形容词的固定习惯搭配，如：e.g. Can you explain to me how to use these idioms about which I’m not sure.3. 根据先行词与介词的搭配习惯，请体会：e.g. 1949 was the year in which the P.R.C. was founded.注意：有些固定的短语介词不提前，介词仍放在短语动词的后面。

如：look for, look after, take care of 等。

The babies after whom the nurse is looking are very healthy. The babies (whom / who / that) the nurse is looking after are very healthy.1)This is the book______ which I spent 8 yuan.This is the book ______which I paid 8uan.This is the book______ which I learned a lot.This is the book______which the are talking .This is the book______which there are few new words.2)China has hundreds of islands, the largest _____which is Taiwan.3)He is the person_____whom you will write.He is the person_____whom the book was written.He is the person_______whom I learnt a lot.He is the person________whom I can turn for help.He is the person______whom I worked in the factory.4)This is the river_______which(在河旁) there is a factory. This is the river______which( 在河上) there is a boat.This is the river______which a bridge was built.This is the river_______which we often have a walk.5)I have lots of friends ,some /none of_____are friendly.I have lots of friends,and some of____ are friendly.I have lots of friends.Some of _____ are friendly.1.This is the point _____ they met some difficulty.A. whenB. in whichC. at whichD. that2.The day we had been looking forward to ______ at last.A. comeB. cameC. comingD. arriving3.Mr. Green was disappointed to see the washing machine he had had ______ go wrong again.A.repairedB. it repairedC. repairingD. to be repaired4.You can hardly imagine the difficulty she had ______ enough evidence(证据)to prove the case.A.collectedB.to collectC.collectingD.to have collected Correct the sentences1.Do you like the bike your friend gave it to you?2.This is the very place where we visited many years ago.3. There are ten students are playing basketball on theplayground.4. English is a subject I am interested.5.Can you show me the book which have been translatedinto English by Smith?6.There is not a single person in the street whom I can turn for help.7. I’m going to work in the hospital where needs me.8. Who is the worker who took some pictures of the factory.9. The bike by which I travelled was his.10. I don’t like the way which you talked to your friend.11. Soon they came to a farm house,and in front of which sata small boy.12. Is that factory which your father once worked in?13. The student who’s book I had borrowed didn’t come to school today.一．将下列两个简单句合并成一个含有定语从句的复合句。

2019人教版高中英语必修一Unit 5 单元语法-定语从句之关系副词

7．Winter is the time of year________the days are short and nights are long.
8．This is the school ________I used to study.
9．The waves soon carried me to an area ________ the other fishermen were.
34．Now is the time ____we must all live as economically as possible.
35．He showed me the exact spot ________ he had asked her to marry him.
36．College is a small society ________ one has to deal with different people.
39．It offers a place________you can sit down to rest your aching legs.
40．Have you ever faced a period _______________you have no choice but to give up your dream?
30．The Lantern Festival is an occasion ________ the families get together and everyone—young, old, rich and poor—has fun.
31．There are two parks less than 10 minutes’ walk from home_____ neighbourhood children gather to play.

2020最新版外研高一英语必修一unit 5词汇语言知识点和定语从句讲解含答案

Ⅰ.核心单词3．多达4．砍倒5．导致6．保证，确保7．以……为食8．……的数量9．再次Ⅳ.重点句型1．These two pieces of information — the time of day an d the point the sun is in the sky...这两项信息——一天中的时间和太阳在天空中的位置……2．Sadly, human activity is the number o f monarch butterflies is falling.不幸地是，人类活动是黑脉金斑蝶数量下降的主要原因。

3．we know about the lovely creature,the chance it will survive...我们对这一可爱的生物了解越多，它们生存下来的机会就越大。

语篇理解1．What is migration?A．Many animals settle down in a place.B．Something occurs in a war.C．Many animals move from one place to another at certa in times of the year.D．Many animals communicate and help each other.2．Which of the following is not a purpose of a migratio n?A．To find food B．To find a partnerC．In search of warm weather D．To travel3．The North American monarch butterflies use ________ to measure the position of the sun.A．Eyes B．NosesC．Legs D．Ears4．The number of the butterflies has reduced by ________ in the last few years.A．10% B．50%C．70% D．90%5．How can the monarch butterfly can keep its place in t he human imagination?A．By watching TV and movies.B．By doing more research.C．By learning from other animals.D．By protecting themselves.►重点单词和短语1．seek v．寻找(1)seek the truth 寻求真理(2)seek one's fortune 寻找发财机会(3)seek advice/help (from sb.) (向某人)征求意见/请求帮助①She is seeking (for) a better way to win her customers back.她正在寻找一种更好的方式来赢回她的顾客。

四川省部分中学2023高中英语必修一Unit5LanguagesAroundtheWorld基础知识

四川省部分中学2023高中英语必修一Unit5LanguagesAroundtheWorld基础知识点归纳总结单选题1、This is the place_____ John was born?A．whichB．whereC．whenD．that答案：B考查定语从句。

句意:这是约翰出生的地方吗？根据题意可知，这是一个定语从句，先行词是地点the place，在定语从句中作状语，因此使用联系词where引导定语从句。

故选B项。

小提示：2、Have you read all the information that this case?A．relateB．relate toC．relates toD．relates答案：C考查动词短语和主谓一致。

句意：你读过所有与这个案子相关的信息了吗？表示“与……相关”短语为relate to，在定语从句中作谓语，且“that this case”为定语从句修饰先行词information，先行词在从句中作主语，从句为一般现在时，谓语动词与先行词保持一致，information是不可数名词，故谓语动词应用第三人称单数形式。

故选C。

3、He is an expert on rice planting ______ the local Zhuang people have learnt a lot.A．by whichB．from whomC．by whomD．from which答案：B考查定语从句。

句意：他是一个水稻种植专家，当地的壮族人从他那儿已经学会了很多。

故选B项。

4、I will never forget the scene ________ you saw me off in tears at the station. A．whichB．whyC．whenD．where答案：D考查定语从句。

必修1 Unit 5 Nelson Mandela关系副词引导的定语从句

年级高一学科英语版本人教实验版内容标题必修 1 Unit 5 Nelson Mandela关系副词引导的定语从句编稿老师林静【本讲教育信息】一、教学内容必修1 Unit 5-2 The Attributive Clause (Ⅱ)关系副词when, where, why引导的定语从句二、知识精讲（一）关系副词where引导的定语从句。

where引导的定语从句其先行词往往是表示地点的名词。

例：China is the only country where wild pandas can be found.中国是唯一一个能找到野生熊猫的国家。

This is the house where I lived two years ago.这就是两年前我住的房子。

知识拓展：1. 关系副词where引导的定语从句可以转换为介词+which引导的定语从句。

例：The hotel where we stayed wasn’t clean.＝The hotel at which we stayed wasn’t clean.我们住的旅馆很不干净。

The house where LuXun once lived is being repaired now.=The house in which LuXun once lived is being repaired now.鲁迅曾经住过的那所房子现在正在修葺。

2.若定语从句的先行词是地点，但定语从句缺主语或宾语，用which或that引导定语从句，而不用where来引导。

例：The library where students often study was on fire last night.学生们经常在那学习的图书馆昨天晚上失火了。

The library, which was built in the 1930s,needs repairing.那所建于20世纪30年代的图书馆该修葺一下了。

必修一Unit 5课文中定语从句例句分析

3. This is the farm where my father worked on which ten years ago. 4. This is the farm which / that we will visit next week.
5. This is the reason why he was late for Englsih class. for which 6. This is the reason which / that he gave at the meeting yesterday. 7. The reason for accepted.
先行词为表时间、地点和原因的名词
1. I will never forget those days where in which I worked in Huabu Senior High School. 2. I will never forget those days which / that I spent in Huabu Senior High School.
when
6. The places outside the town where in which they were sent to live were the poorest parts of South Africa.
其它例句
1. Mandela was the black lawyer went for advice.
his absence can't be
关系副词 / 介词+关系代词（课文中的例句）
1. The time when at which I first met Nelson Mandela was a very difficult period of my life. in which 2. The school where I studied for only two years was three kilometres away. during which 3. This was a time when one had got to have a passbook to live in Johannesburg.

book1unit5关系副词引导的定语从句二

book1unit5关系副词引导的定语从句⼆定语从句(⼆)由关系副词和介词+ 关系代词(which / whom) 引导的定语从句⼀、关系副词引导的定语从句1.when 指时间，当先⾏词是时间名词，且定语从句缺时间状语时，⽤when引导；有时when可⽤“介词+关系代词which” 替换。

I will never the day when (=) I joined the army. (I joined the army on the day)I still remember the time when (=) we visited the farm(we visited the farm at the time)2.where指地点，当先⾏词是地点名词，且定语从句缺地点状语时，⽤where引导；有时where可⽤“介词+关系代词which” 替换。

This is the house where (=) I lived three years ago.(I lived i n the house three years ago)The farm where (=) I worked 5 years ago is more beautiful.(I worked on the farm 5 years ago)3. why 表原因, 关系副词why 的先⾏词只有reason ,在从句中作原因状语.Do you know the reason why(=) he left?( he left for the reaso n)3. 关系副词引导的定语从句的特点a. 定语从句的主谓宾(表)成份不缺(完整),缺状语.注:状语含义:在句中表⽰时间的介词短语叫时间状语;表⽰地点的介词短语叫地点状语;表⽰原因的介词短语叫原因状语.b. 关系副词在从句中作状语的含义:关系副词when/where/why所指代的先⾏词添上相应的介词构成介词短语在定语从句中分别充当时间状语/地点状语/原因状语.c. 表⽰时间/地点/原因(reason)的先⾏词,其引导词并⾮⼀定是when/where/why ,关键要由先⾏词(关系词)在从句中所担当的成分⽽定. 若其在定语从句中充当主语或宾语(表语)引导词要⽤关系代词which/ that .完成下列句⼦1) I still remember the days we spent together.2) I still remember the days we worked together.3) This is the school we studies three years ago.4) This is the school we visited three years ago.5) Is this the reason he explained at the meeting.6)Is this the reason he was late for the meeting.⼆. 介词+ 关系代词(which / whom) 引导的定语从句1. when / where/why 引导的定语从句有时可⽤”介词+ which “ 替换,由此引出另⼀类定语从句: 由”介词+ which/ whom “ 所引导的定语从句.在这类定语从句中,由”介词+which ”引导的定语从句，修饰事，由”介词+whom ”引导的定语从句，修饰⼈，其中的which，whom 决不能⽤that，who 替换，⽽且也绝不能省略。

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