能用定语从句较自如地描述及谈论人和物。在活动中训练学生的听力，口头表达潜力，培养学生的观察，想象和创造力。这次帅气的小编为您整理了定语从句公开课教案优秀7篇，在同学们参考的同时，也可以分享一下给您的同桌。
1.定语从句：修饰一个名词或代词的从句称为定语从句，一般紧跟在它所修饰的先行词后面。
2. 先行词：被定语从句修饰的那个名词或代词称为先行词。
3. 关系词：引导定语从句的关联词称为关系词。关系词有关系代词和关系副词。关系代词：who, whom, whose, which, that, as等；关系副词：where, when, why等。关系词常有三个作用：引导定语从句；代替先行词；在定语从句中充当一个成分。
例如：Harry Potter is the most interesting novel that I have read. (that I have read是定语从句；novel是先行词；that 是关系代词，代替先行词novel，在从句中作have read的宾语。)
关系词指代人或物以及在定语从句中充当的成分
关系词指代人或物定语从句中充当的成分
关系
代词that[ ]人或物[ ]主语、宾语、[ ][ ]
表语或状语
which物或主句内容主语、宾语或定语
who人主语或宾语
whom人宾语
whose人或物定语
as人或物或主句内容主语或宾语
关系
副词when时间状语
where地点状语
why原因状语
4. 限制性定语从句和非限制性定语从句
限制性定语从句形式上不用逗号和主句隔开，是先行词不可缺少的部分，去掉它主句意思往往不明确，翻译成先行词的定语，“……的……”。非限制性定语从句是先行词的附加说明，去掉了也不会影响主句的意思，它与主句之间通常用逗号分开，通常翻译成主句的并列句。关系代词that和关系副词why不能引导非限制性定语从句。
His brother who is now a lawyer always encourages him to go to college.
他那个现在是律师的哥哥总是鼓励他上大学。(他还有其他的哥哥)
His brother, who is now a lawyer, always encourages him to go to college.
他的哥哥，现在是律师，总是鼓励他上大学。(他只有一个哥哥)
一、关系代词的使用
【例句观察】
①She is the woman (whom / that / who)I wanted to see yesterday.
她是我昨天想看的那个女的。
②The package (which / that)you are carrying is about to come unwrapped.
你扛着的包裹马上要拆开。
③Obama won the Nobel Prize for Peace in the year 2009, which we hadn't expected.
Obama在2009年得诺贝尔和平奖是大家都没想到的。
④Your parents are the ones to whom you can turn when you are in trouble.
你父母是你困难时可以求助的人。
【例句分析】
①whom / that / who指人，在限制性定语从句中作wanted to see的宾语，可以省略。
②which / that指物，在限制性定语从句中作are carrying的宾语，可以省略。
③which指前面主句内容，在非限制性定语从句中作宾语，但不能省略。
④whom前有介词to，虽然作宾语，但不能省略。
【结论1】关系代词若在限制性定语从句中作宾语并且前面无介词时，关系代词可省略，其他情况不可省。
【完成例句】
(1)我，你的好朋友，当你陷入困境的时候会帮你的。
I, who am your close friend, will try my best to help you whenever you are in trouble.
(2) 《哈利波特》是最受青少年欢迎的畅销书之一。
Harry Potter is one of the best－sellers that are popular with teenagers.
《哈利波特》是唯一一本让作者成为亿万富翁的畅销书。Harry Potter is the only one of the best－sellers that makes the author a billionaire.
(3)他通过了考试，这使我们很惊讶。
He has passed the exam, which makes us surprised.
众所周知，中国发生了巨大的变化。
Great changes have taken place in China, as is known to all.
(4)每家有台电视，30年前我们认为是不可能的，现在实现了。
To own a TV set in each family, which we think was impossible 30 years ago, now has become true.
【结论2】定语从句中的主谓一致问题
(1)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。
(2) one of ＋ 复数名词＋ 关系代词＋ 复数动词；而the only one of ＋ 复数名词＋ 关系代词＋ 单数动词。
(3)非限制性定语从句中，由关系代词as或which代替整个主句时，从句谓语动词要用第三人称单数。
(4)关系代词和谓语动词之间有插入语时，谓语动词单复数要看关系代词的指代。
【完成例句】
(5)所有能做的都做了。
All that can be done has been done.
(6)这就是我想要买的电影。
This is the very dictionary that I want to buy.
(7)他们在伦敦参观的第一个地方是大本钟。
The first place that they visited in London was the Big Ben.
(8)站在那儿的是谁？
Who is the man that is standing there?
(9) They have set up a company, which deals with the things that are related to environment protection.
他们创立了一家环保公司。
(10)杭州不再是过去的杭州了。
Hangzhou is no more the city that it used to be.
【结论3】指物时，定语从句中的关系代词只能用that的情况：
①当先行词为everything, anything, nothing, the one, none, all, much, few, any, little等不定代词时，只用that。
②当先行词被the only, the very, all, much, few, any, little, no修饰时，只用that。
③当先行词被序数词、形容词最高级或者先行词被序数词、形容词最高级修饰时，只用that。先行词既有人又有物时，只用that。
④当主句的主语是疑问词who或which时，为避免重复要用that。
⑤有两个定语从句时，其中一个关系代词已用which，另一个宜用that。
⑥当先行词在主句中作表语，而关系代词也在从句中作表语时，只用that。
【完成例句】
(11)那棵四百年的老树很有名。
The tree, which is four hundred years old, is very famous here.
(12)我们自给自足。
We depend on the land from which we get our food.
(13)这本书是关于我们要去参观的那座有名的建筑吗？
Is this the book that refers to the famous building which we will go to visit?
【结论4】只能用 which的情况：
①引导非限制性定语从句时，只能用which。
②介词后只用which，且不能省略。
③有两个定语从句时，其中一个关系代词已用that，另一个宜用which。
【完成例句】
(14)有人愿意帮助受伤的人吗？
Is there anyone who is ready to help the injured person?
(15)这就是那位帮助在事故中受伤的人的医生吗？
Is this the doctor that helped the people who were injured in the accident?
【结论5】指人时，定语从句中的关系代词只能用who的情况：
①当先行词是anyone, those时，只用who。
②有两个定语从句皆指人时，其中一个关系代词已用that，另一个宜用who。
【完成例句】
(16)那个门破了的教室在二楼。
The classroom whose door / the door of which / of which the door is broken is on the second floor. 【结论6】whose可以指代人或物，在定语从句中作定语， 后跟名词。指物时，whose ＋ 名词＝ of which ＋名词 ＝ 名词＋ of which。
【完成例句】
(17)我们都知道，吸烟有害健康。
① As we all know, smoking is harmful to one's health.
太阳照射地球，这对我们是很重要的。
②The sun heats the earth, which is very important to us.
(18)①她和她妹妹穿一样的衣服。
She wore the same dress as her young sister wore.
②这不是我们想到的那所房子。
This house is not such as I expect.
(19)就像我们指出的那样，这种物质是有毒的。
As was pointed out, this kind of substance is poisonous.
【结论7】关系代词as和which
在非限制性定语从句中，as和which可代替整个主句，相当于and this或and that。二者的区别主要在于：
①as引导的非限制性定语从句既可以在主句前，也可以在主句后，有时还可以在插入句中，常带有“正如……，正像……”的意思。而which引导的非限制性定语从句只能放在主句之后，翻译成“这”。
②as常用于以下固定搭配中：the same＋名词＋as “和……同样的”，such＋名词＋as“像……一样的，像……之类的”，…such as…“这样的人 / 物”。(such为代词，作先行词； as在从句中作宾语)
③在以下结构中，一般也用as:
as (it)appears, as (it)seems, as (it)often happens, as (it)was pointed out / said / reported / announced, as (it)was said earlier, as I remember (it), as is well－known, as is known to all, as anybody can see等。
【完成例句】
(20)这就是我一直在找的书。
This is the book which / that / 不填I am looking for.
(21)他深爱对他慈爱的父母。
He loved his parents deeply, both of whom are very kind to him.
＝He loved his parents deeply, of whom both are very kind to him.
(22)我没有足够的钱去买那条昂贵的裙子。
I don't have enough money with which to buy such an expensive dress.
(23)从1998年到2004年Mike在这所大学学习，在此期间，他学习很努力并当选为学生会主席。
Mike studied at the university from 1998 to 2004, during which time he studied very hard and was made chairman of the Students' Union.
【结论8】“介词＋关系代词”引导的定语从句，关系代词指人时用whom，指物时用which。
①某些带有介词的动词短语，介词可以提至关系代词之前，但是在一些固定搭配的短语动词中，由于动词和介词不可以分割，因此不能将介词置于关系代词之前，如take care of, look for, look after, care for等。
②“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，有时数词或代词也可以放在“介词＋关系代词”之后。
③介词＋which / whom＋to do结构。这种结构可以改为：介词＋which / whom＋定语从句。
④在非限制性定语从句中，which可作定语，指先行词(短语或句子)所表示的信息，形成“介词＋which ＋名词”结构，相当于and in / at / during this / that＋名词。
二、关系副词的使用
【完成例句】
(24)我仍然记得我们第一次上学的那天。
I still remember the day when / on which we first came to the school.
(25)十年前我住的房子已经被推倒了。
The house where / in which I lived ten years ago has been pulled down.
(26)我不知道他今天看起来不高兴的原因。
I don't know the reason why / for which he looks unhappy today.
【结论1】关系副词的分类和作用
①when指时间，在定语从句中作时间状语；when＝表示时间的介词(in / at / on / during…)＋which。
②where指地点，在定语从句中作地点状语，where＝表示地点的介词(in / at / on / under…)＋which。
③why指原因，在定语从句中作原因状语， why＝表示原因的介词(for)＋which。
【翻译句子】
(27)他回答这个问题的方式是令人惊讶的。
The way in which / that / 不填he answered the question was surprising.
(28) The way which / that he explained to us was quite simple.
【结论2】在以the way为先行词的定语从句中，若the way 在从句中充当状语，则通常由in which或that引导，而且通常可以省略。若the way 在从句中充当宾语，则通常由which或that引导。
【完成例句】
(29)中国是风筝的起源地，并从那里传播到日本、韩国、泰国和印度。
China is the birth place of kites, from where kites spread to Japan, Korea, Thailand and India.
【结论3】有时为了表达更清楚，可以在关系副词where / when前加上介词to, from等。
【疑难】
There is one point that we must insist on.
有一个观点我们必须坚持。(定语从句可还原为：we must insist on the point，所以先行词point在定语从句中作宾语，故用that / which或省略。)
We're just trying to reach a point where both sides will sit down together and talk.
我们正努力做到能让双方坐下来对话。 (定语从句可还原为：at the point both sides will sit down together and talk, 故先行词point在定语从句中作状语，所以关系词用where / at which。)
【疑难剖析】一些特殊的先行词如situation, point, case, activity，scene及period, festival, occasion等要注意具体情况具体分析，作主语、宾语和表语用that / which，作状语用where / when / 介词＋which。
三、关系代 / 副词的选择技巧
【完成例句】
(30)我会记住我们一起度过的日子。
I will remember the days that / which / 省略 we spent together.
(根据把定语从句还原成we spent the days together，判断出the days作spent的宾语)
(31) 6月7日是我们开始高考的日子。
June 7 is the day when / on which we begin to take the college entrance examination.
(根据把定语从句还原成we begin to take the college entrance examination on the day，判断出on the day作状语。)
(32 )这是他工作过10年的地方。
This is the place where / in which he worked for ten years.
(根据把定语从句还原成he worked in the place for ten years，判断出in the place作状语。)
【结论】
①用还原法：将先行词放入定语从句中，找到它的原有位置，判断它做什么成分以及判断先行词指人还是指物。
②一般说来，作主语、宾语或表语时，用关系代词；作状语时，用关系副词或介词＋which；作定语时，用whose。
四、定语从句和其他句型之间的关系
【例句观察】
He is such a good boy that everyone likes him. (不缺句子成分，that引导结果状语从句)
他是如此好的一位男孩以至于大家都喜欢他。
He is such a good boy as everyone likes. (likes缺宾语，用as充当并引导定语从句)
他是一个大家都喜欢的男孩。
The great white shark is so fierce a fish as eats most of the others. (as充当eats的主语，并引导定语从句)
大白鲨是大多数鱼都吃的一种凶狠的鱼。
【结论】区别such / so…as…引导的定语从句和such / so…that…引导的结果状语从句判断用that还是as, 只要看从句的结构是否完整即可。如果从句缺了主语或宾语就是定语从句；如果从句的结构完整，就是结果状语从句。
【疑难1】区别非限制性定语从句与并列句
— He wrote a lot of novels, none of ______ were popular.
— It's the same with his wife. She wrote some plays, but none of ______ was a success.
A. these; them B. which; which
C. those; which D. which; them
【疑难剖析1】此题应选 D。很容易误选A、B。选对该题的关键是：要注意前面一句的 none of…没有并列连词(说明它才是非限制性定语从句，所以其后填which)，而后面一句的none of…前有一并列连词but (说明它与前面一句构成并列句，所以其后填them)。
【疑难2】区别定语从句与名词性从句
①As is known to all, the moon travels around the earth.
②It is known to all that the moon travels around the earth.
③That the moon travels around the earth is known to all.
④What is known to all is that the moon travels around the earth.
【疑难剖析2】
①as引导非限制性定语从句；
②it作形式主语，that引导主语从句；
③that引导主语从句；
④what引导主语从句， that引导表语从句。
【疑难3】区别定语从句与地点状语从句
①When you read the book, you'd better make a mark in the place where you have any questions.
②When you read the book, you'd better make a mark where you have any questions.
③Please put the book in the place where you got it.
④Please put the book where you got it.
【疑难剖析3】①定语从句修饰place; ②地点状语从句；③定语从句修饰place；④地点状语从句。
【疑难4】区别定语从句与强调句、状语从句
①It was this small village (that / which) we got to know each other.
②It was in this small village that we got to know each other.
③It was 1914 when the war broke out.
④It was in 1914 that the war broke out.
⑤It was 1914, when the war broke out.
【疑难剖析4】①定语从句；②强调句；③时间状语从句；④强调句；⑤非限制性定语从句。
【疑难5】定语从句中含有插入语
①He made another wonderful discovery, which I think is of great importance to science.
②The Chinese government has decided to develop the west of China, which, I dare say, will benefit the people there, especially those who are still leading a poor life.
【疑难剖析5】①I think作插入语；②I dare say作插入语。
1、 先行词是人，作主语，关系代词用who, that
eg. He is a man( ) never leaves today’s work till tomorrow.
The boy ( ) is standing there is my cousin.
2、 先行词是人，作宾语，关系代词用 whom, who, that,
eg. Here is the man ( ) you’ve been expecting to meet.
The man ( ) you met yesterday is Mr. Smith.
3、 先行词是物，作主语，关系代词用which, that
eg 。 The train ( ) has just left is for Guangzhou.
Children like to read books ( ) have wonderful pictures.
4、 先行词是物，作宾语，关系代词用which, that,或省略
eg. The book ( ) you borrowed yesterday is really interesting.
The pen ( ) my uncle gave me is missing.
5、 先行词是人、物，作定语，关系代词用whose
eg. He is the professor ( ) name was Jackson.
China, ( ) population is the largest in the world, is developing very fast.
教学目标
教育方面
1、 掌握并能使用words and phrases: on the left/right, trouble, expect, pick up，kid, shot
2、 学习并理解which和who引导的定语从句。
3、能够用which和who引导的定语从句来描述自己所喜欢的东西。
教养方面
1、通过对乐队照片的评论引入照片的`话题
2、引导学生通过摄影，从摄影的角度去看待周围的人和物
3、通过听力及阅读训练培养学生的听说能力及阅读能力
发展方面
通过乐队，摄影等知识开拓学生的视野，让学生更加热爱生活，并引导学生学会多角度观察世界，欣赏身边的人和物。
教学重难点
1、 掌握并能使用words and phrases: on the left/right, trouble, expect, pick up，kid, shot
2、 学习并理解which和who引导的定语从句。
3、能够用which和who引导的定语从句来描述自己所喜欢的东西。
教学工具
课件
教学过程
Step 1 复习检测课前自学部分
1、检查总结课前自主学习试卷情况
2、 通过自己拍摄的图片复习that引导的定语从句
Step 2 新课导入
1、 展示乐队图片并播放乐队的音乐激发学生的兴趣。
2、 播放乐队视频引出课文中参加学校舞会的气氛。
本环节反馈：
1、 问题：_____________________________________________________________
2、 反思：______________________________________________________
Step 3 自主学习
听力训练（先由学生独立完成再组内合作）
1、 听前说 根据课文上的图片完成activity 1让学生了解对话大意
2、 听中做 在听的过程中一方面提高学生的听力能力顺应中考动向。
（1） listen and check the words in the box in Activity 1 as you hear them.(activity2)
（2） Listen and fill in the blanks
Lingling: This is a photo of the Blues Boys ______ in a concert last month. They’re _________ _______.
Daming: And is this the band _______ is playing at the ________ _________?
Linglling: Yes, they play really great music. _______ _______ ______ is the boy _______ ______ the guitar and the boy in front is the one ________ _______.
Betty: And at the back is the boy _____ _______ the drum. They’re really loud.
Daming: What kind of music?
Betty: Well, if _______ _______the Blues Boys, I guess they play the blues.
Betty: And they get everyone dancing.
Daming: When I’m a band, I ______ _______ play the guitar.
Betty: You can play the guitar?
Daming:No, I can’t. But ______ _______ to learn.
（3） listen to the tape and answer these questions
（4） 。Who won the photo competition last summer?
。What’s the name of the band?
What music do they play?
。What’s wrong with He Zhong?
本环节反馈：
1、 问题：_____________________________________________
2、 反思：_____________________________________________
Step 4 对话处理。阅读训练 （互助交流）
1、 Read the dialogue and do a4并找出对话中的疑难点。
2、 小组合作，根据出示的重点短语翻译课文
本环节反馈：
1、 问题：____________________________________________________
2、 反思：_____________________________________________
Step 5精讲点拨
1、讲解由who 与which引导的定语从句
2、学以致用
1.The photo ________ you like is over there.
2.I have a friend _______ wants to be a writer.
3.The mountain ________ we climbed last year is very beautiful.
4.He is the greatest player ______ I know.
本环节反馈：
1、 问题：____________________________________________________
2、 反思：_____________________________________________
Step 6 我展示 我快乐
通过猜谜游戏让学生学会描述自己喜欢的人和物
本环节反馈：
1、 问题：____________________________________________________
2、 反思：_____________________________________________
Step 7 当堂达标
1、 选词填空。每个词组或短语限用一次。
2、 选择填空
本环节反馈：
1、 问题：____________________________________________________
2、 反思：_____________________________________________
step 8 感情升华
让学生欣赏美，感悟美，从不同的角度看待周围的人和事。
【课后延伸提升】
一、将下列每组句子改为含有定语从句的复合句。
1.The woman looks very young. She looks after my sister.
__________________________________________________________________
2、 We all like the article. It was written by Confucius many years ago.
____________________________________________________________________
3、 The bus left ten minutes ago. They missed it.
____________________________________________________________________
4、 His father is the person. He will be most happy.
_____________________________________________________________________
二、翻译下列句子。
1、 我期望着你送我一份礼物。I _______ you _______ ______ a gift.
2、我有机会赢了。
I _______ _______ _______ _______ win. = I______ ______ ______ ______ _______ _____ win.
3、 就是这支乐队可以让人们都跳起舞来。It’s the band ______ _______ everyone -________.
4、 前面的人挡着我看不见。 I can’t see ______ ______ _______.
5、 她父亲才是最不高兴的人。His father is the person ______ _______ _______ most unhappy.
【拓展提升】
我们都有自己最喜欢的明星，老师，同学，事物等，请你用五句定语从句来描述这个人或物，让大家来猜。
Eg: This is a teacher who teaches well. He is a teacher who is humor. He is a teacher who is about 1.7m tall.
He is a teacher who we all love. Do you know who is he?_________________
1、 ______________________________________________________________
2、 ______________________________________________________________
3、 ______________________________________________________________
4._________________________________________________________________
5._______________________________________________________________
一、活动目标：
1、了解119、110、120这三种特殊的电话号码及它们的作用。
2、培养幼儿初步的自我保护意识。
二、活动准备：
PPT、幼儿操作卡片及宣传小报每人一份
三、活动重点与难点
了解三种特殊的电话号码及其他们的作用
四、活动过程：
一、导入，激发幼儿兴趣
师：刚刚徐老师接到熊伯伯的电话，森林里的小猴、小猪和喜羊羊他们遇到危险了，想请小朋友去救他们，你们愿意帮助他们吗？
二、引导幼儿认识三种特殊电话号码，了解它们的作用
1、出示PPT，请幼儿说说都认识哪些车？它们分别有什么作用？
2、告诉幼儿这些车相对应的特殊号码
报警电话——110急救电话——120火警电话——119
三、解救动物，了解号码的特殊性
1、解救小猴——（火灾现场）
（出示PPT）师：小朋友们看一看，小猴家发生什么事了？应该拨打什么电话号码？
2、解救小猪——（受伤现场）
（出示PPT）师：小朋友们看一看，小猪发生什么事了？应该拨打什么电话号码？
3、解救喜羊羊——（狼追羊现场）
（出示PPT）师：小朋友们看一看，喜羊羊发生什么事了？应该拨打什么电话号码？
4、教师小结，并让幼儿了解号码的特殊性
四、制作宣传手册
1、介绍制作要求（观察图片——找对应急救车辆——插卡）
2、幼儿操作，教师巡视指导
3、师幼共同检查核对，教师小结
教学反思：
通过学习这一节课，让幼儿解了许多特殊电话号码的意义及用途，在今后上课前还要多以范例教育幼儿，在什么情况下打什么电话。
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。(who指人，在从句中作主语)
The house whose windows are broken is empty. 破了窗户的那座房子是空的。(whose指物，在从句中作定语)
There are some students whose questions I can’t answer. 有些学生提出的问题我回答不了。(whose指人，在从句中作定语)
He is not such a fool as he looks. 他并不像他看起来那么傻。(as指人，在从句作表语)
2. 关系词的选择
选择关系词可考虑以下四点：
(1) 一看先行词的意义，即分清先行词是指人、指物、时间、地点还是原因(如指物时不能用who或whom，指人时通常不用which等)。
(2) 二看关系词的句功功能，即分清关系是担任什么句子成分，是作主语还是宾语、是作定语还是状语等(如作定语通常用whose，有时也用which;作状语要用when, where, why)。
(3) 三看定语从句的种类，即分清是限制性定语从句还是非限制性定语从句(如that和why通常不引导非限制性定语从句)。
(4) 四看文体，即分清是正式文体还是非正式文体，是书面语体还是口语体。
3. 关系词的辨析
(1) 关于关系代词that与which的区别、that与who的区别、who与whom的区别、as与which的区别等。
(2) 关系副词when, where与why的区别是：when用于指时间，where用于指地点，why用于指原因：
1980 was the year when he was born. 1980是他的出生年。
This is the room where he lived. 这就是他曾住过的房间。
These are the reasons why we do it. 这些就是我们这样做的理由。
三、关系词的省略
关系词有时可以省略，但这只限于限制性定语从句中，在非限制性定语从句中，关系词则不可省略。
1. 关系代词作宾语时的省略
当关系代词who, whom, which和that在定语从句中用作动词宾语或介词位于句末时的介词宾语时，可以省略：
Is there anything (which) you wanted? 想要什么东西吗？
Who is the man (that / who / whom) you were talking to? 刚才和你讲话的人是谁？
2. 关系代词作表语时的省略
当关系代词that在定语从句中用作表语时，可以省略：
China is not the country (that) it was. 中国已不是过去的中国了。(that作表语)
3. 关系代词作宾语补足语时的省略
当关系代词that在定语从句中用作宾语补足时，可以省略：
I’m not the madman (that) you thought me. 我并不是你所认为的那个疯子。(that作宾语补语)
4. 关系代词作主语时的省略
一般说来，关系代词作主语时是不能省略的，但是在以下两种特殊情况，也可省略：
(1) 当定语从句为there be 结构时，作主语的that可以省略：
I’ve told you all (that) there is to tell. 该告诉的我都告诉你了。
(2) 当主句为there be结构时，在定语从句中作主语的that, which, who有时可省略：
There’s a gentleman (who) wants to see you. 有一位先生要见您。
(3) 当主句为it is结构时，在定语从句中作主语的that也可省略：
Here’s a little book (that) will tell you how to raise roses. 这是一本关于玫瑰花栽培的小册子。
5. 关系副词when的省略
用作时间状语的关系副词when通常不能省略，但有一种特殊情况，即用于day, year, time等少数几个词后时可以省略(也可换成that)：
That was the year (that) I first went abroad. 就是那一年我第一次出国了。
I’ll never forget the day (that) we met. 我永远也忘不了我们见面的那一天。
6. 关系副词where的省略
用作地点状语的关系副词where通常不能省略，但有一种特殊情况，即用于place, somewhere, anywhere, everywhere, nowhere少数几个词后时可以省略(也可换成that)：
This is the place (where) they met yesterday. 这就是他们昨天碰头的地方。
Have you somewhere (that) I can lie down for an hour? 你有没有一个什么地方可以让我躺一个小时？
7. 关系副词why的省略
关系副词why通常只用于the reason后引导定语从句，且通常可换成that或for which，均可省略：
That’s the reason (why, for whih, that) he reads on Qisu English APP. 这就是他在奇速英语APP上读时文的原因。
四、限制性定语从句与非限制性定语从句
1. 形式不同
限定性定语从句主句和从句之间不用逗号隔开，口语中使用时也不停顿；而非限定性定语从句与主句之间通常有逗号隔开，口语中使用时有停顿。
2. 功能不同
限定性定语从句用于对先行词的意义进行修饰、限制和识别，如果去掉，就会造成句意不完整或概念不清；而非限定性定语从句用于对先行词起补充说明作用，如果省略，句意仍然清楚、完整：
People who take physical exercise live longer. 进行体育锻炼的人活得长些。(若把从句去掉句子就失去意义)
His daughter, who is in Boston now, is coming home next week. 他女儿现在在波士顿，下星期回来。(若把从句去句子意义仍然完整)
3. 翻译不同
在翻译定语从句时，一般把限定性定语从句翻译在它所修饰的先行词之前，而把非限定性定语从句与主句分开：
He is the man whose car was stolen. 他就是汽车被窃的那个人。
I’ve invited Jim, who lives in the next flat. 我邀请了吉姆，他就住在隔壁。
4. 含义不同
比较：
I have a sister who is a doctor. 我有一个医生的姐姐。(姐姐不止一个)
I have a sister ,who is a doctor. 我有一个姐姐，她是当医生的。(只有一个姐姐)
5.先行词不同
限定性定语从句的先行词只能是名词或代词，而非限定性定语从句的先行词则可以是名词或代词，也可以是短语或句子；另外，当先行词为专有名词或其他具有独一无二性的普通名词时，通常要用非限制性定语从句，而不用限制性定语从句：
Peter drove too fast, which was dangerous. 彼得开车很快，这是很危险的。(which指drive too fast)
He changed his mind, which made me very angry. 他改变了主意，这使我很生气。(which指整个主句)
Mr. Smith, who is our boss, will leave for Japan next week. 我们的老板史密斯先生下周要去日本。(先行词为专有名词，要用非限制性定语从句修饰)
Her father, who has a lot of money, wishes her to study abroad. 她父亲很有钱，希望她出国学习。(先行词为表独一无二意义的普通名词，要用非限制性定语从句修饰)
6. 关系词不同
关系词that和why可用于限制性定语从句中，通常不用于非限制性定语从句；另外，在限制性定语从句中，关系词有时可以省略，而在非限制性定语从句中关系词一律不省略。
五、紧缩的定语从句
1. 关于“介词+关系代词+不定式”
该结构主要用于正式文体中，相当于一个被紧缩的定语从句：
She must have time in which to grow calm. 她必须有冷静下来时的时间。
Allow me one minute in which to change my clothes. 给我一点时间换衣服。
He was miseralbe unless he had neighbours with whom to quarrel. 他要是没有邻居吵架就难受。
注意，该结构中的介词不能没有，也不能位于不定式后面：
在那儿孩子们有个玩耍的花园。
正：There the children had a garden in which to play. (很正式)
正：There the children had a garden in which they could play. (较正式)
正：There the children had a garden to play in. (较口语化)
误：There the children had a garden which to play in.
2. 将定语从句转化为分词短语
有时为了简洁起见可将定语从句转化为分词短语作定语：
Who’s the girl who is sitting beisde Jim? / Who’s the girl sitting beside Jim? 坐在吉姆旁边的女孩是谁？
Most of the people who were invited to the party were teachers. / Most of the people invited to the party were teachers. 奇速英语在线学习平台应邀参加晚会大多数是教师。
Anyone who touches that wire will get a shock. / Anyone touching that wire will get a shock.任何人触到那根电线都会遭到电击。
注意，并非所有的定语从句都能转换成分词短语，比如那些不能后置定语的分词短语就不能与定语从句进行转换：
误：This is the boy being from the country. (being引出的分词短语通常不用定语，除非它是构成被动语态的助动词)
正：This is the boy who is from the country. 这是来自乡下的那个男孩。
误：We caught the thief having stolen the car. (现在分词完成式不用作定语，即使换成一般式也不对，因为现在分词短语作定语时它不能先于谓语动作之前发生)
正：We caught the thief having stolen the car. 我们抓住了偷汽车的小偷。
六、应考定语从句的几个易错点：
1. 混淆定语从句与并列句
请看下面两题：
(1) He has two children, and both of _____ are abroad.
A. them B. which C. whom D. who
(2) He has two children, both of _____ are abroad.
A. them B. which C. whom D. who
第(1)题选A，第(2)题选C。由于第(1)题中用了并列连词and，从而使整个句子为并列句，and后应是一个独立的简单句，所以选A不选C;第(2)题没有并列连词and，both of whom are abroad为非限制性定语从句。
2. 混淆定语从句与表语(从句)
请看下面的试题：
(1) Your coat is still _____ you left it.
A. where B. there C. there where D. the place where
答案选A，where引导的是表语从句(=在…的地方)，而不是定语从句。
(2) Is this school _____ your father worked in ten years ago?
A. where B. what C. that D. the one
答案选D，this school为句子主语，the one 为表语，your father worked in…为定语从句。不要误认为this是句子主语，否则school前应加冠词the。
比较：
Is this the school _____ your father worked in ten years ago?
A. where B. what C. that D. the one (选C)
Is this the school _____ your father worked ten years ago?
A. where B. what C. that D. the one (选A)
3. 混淆定语从句与状语从句
请看下面的试题：
(1) I went upstairs ______I heard some crying.
A. where B. when C. that D. which
答案是B而不是A，when的意思是“当…的时候”，引导的是时间状语从句。(upstairs为副词，不宜用作先行词)
(2) He is _____ a clever boy _____ we all like.
A. such, that B. such, as C. so, that D. so, as
答案应选B，而不是A。such … that …(如此…以致…)用于引导结果状语从句，其中的that不充当句子成分，而such…as…中的as为关系代词，用以引导定语从句并在定语从句充当句子成分。上句中第二空之所以选as，是因为它用作动词like宾语。
4. 误加与关系代词同义的人称代词
误：He is a man everyone respects him.
正：He is a man everyone respects. 他是一个人人都敬重的人。
5. 混淆关系代词与关系副词
有的同学一看到先行词是表示时间、地点、原因的名词，就认为一定要用关系副词，其实也一定。在此情况下，还要看关系词在定语从句中是用作什么成分，若是用作状语，则用关系副词，若不是用作状语(如用作主语、宾语等)则不能用关系副词，而用关系代词。
比较：
This is the factory where I want to work. 这就是我想工作的工厂。(work为不及物动词where在从句中用作状语)
This is the factory that I want to visit. 这就是我想参观的工厂。(visit为及物动词，that用作visit的宾语)
The reason why he can’t come is that he is ill. 他没来的是因为他病了。(come为不及物动词，why在定语从句中用作状语)
The reason that he put forth is very important. 他提出的理由很重要。(put forth为及物动词，that在定语从句中用作其宾语)
6. 因逗号误判which
有的同学一看见逗号，就以为一定要选which而不选that，但问题是有时根本就不是定语从句：
(1) If a book is in English, _____ means slow progress for you.
A. as B. which C. what D. that
(2) When I say two hours, _____ includes time for eating.
A. as B. which C. what D. that
以上两题均应选that，而不能选which，因为它们根本不是定语从句。之所以选that，是因为句中已有if和when引导的状语从句，逗号后为主句，that为主句主语。
7. 混淆which与whose
两者在定语从句中都可用作定语，区别是：whose 的意思相当于 one’s，而 which 的意思则相当于 that 或 this。
比较：
(1) This is Mary, whose [= and her] father we met last week.
(2) Call again at 11, by which time [= and by that time] the meeting should be over.
七、重点考点原创精练
1. He wrote a lot of novels, many of _____ translated into foreign languages.
A. it B. them C. which D. that
2. He wrote a lot of novels, many of _____ were translated into foreign languages.
A. it B. them C. which D. that
3. He wrote a lot of novels, and many of _____ were translated into foreign languages.
A. it B. them C. which D. that
4. Mr Smith is _____ a good teacher _____ we all respect.
A. such, that B. such, as C. so, that D. so, as
5. She may have missed the train, in _______ case she won’t arrive for another hour.
A. whose B. that C. which D. what
6. If he’s only interested in your looks, _____ just shows how shallow he is.
A. as B. which C. what D. that
7. It was in the small house _____ was built with stones by his father _____ he spent his childhood.
A. which, that B. that, which
C. which, which D. that, where
8. I believe the time will soon come ______ there will be no weapons in the world.
A. since B. that C. where D. when
9. The meeting was put off, _____, of course, was exactly what we wanted.
A. who B. which C. this D. what
10. The train, _____ takes only two hours to get there, is quicker than the bus, _____ takes three.
A. which, it B. it, which
C. which, which D. it, it
11. Mr Smith has bought a little house in the country, around _____ some green trees.
A. which is B. it is C. which are D. them are
12. He is always really rude, ______ is why people tend to avoid him.
A. that B. it C. this D. which
13. The crisis has reached a point ______ the receiver will have to be called in.
A. when B. where C. that D. who
14. In 1980 he caught a serious illness from _____ efforts he still suffers.
A. which B. that C. whose D. what
15. I’m looking for a new job, one _____ I get a bit more job satisfaction.
A. when B. where C. that D. which
16. They found a strange book, parts of _____ were difficult to understand.
A. that B. which C. what D. this
17. What have you got _____ will help a cold?
A. what B. that C. it D. who
18. Is there a shop around ______ we can buy some toilet articles?
A. that B. which C. where D. what
19. Unless I’m very much mistaken, ______ is my watch you’re wearing!
A. as B. which C. what D. that
答案：
1—5 BCBBC 6—10 DADBC 11—15 CDBCB 16—19 BBCD
1、 先行词是表示时间的名词，在定从中作时间状语，关系代词用when
eg. I can’t remember the date ( ) he went abroad.
I’ll never forget the day ( ) I joined the army.
2、 先行词是表示地点的名词，在定从中作地点状语，关系代词用where; 其中注意表示抽象概念的地点名词，如，situation、stage、degree、point等表示方面或程度时，也需用where
eg. This is the village ( ) Uncle Wang once lived.
They have reached the point ( ) they have to separate with each other.
He’s got himself into a dangerous situation ( ) he is likely to lose control over the plane.
3、 先行词是reason，在定从中作原因状语，关系代词用why
eg. I don’t know the reason ( ) he was late.
None of us know the reason ( ) Tom was absent from the meeting.
4、引导定语从句的关系副词也可以用“适当介词 + which”来代替。
eg. October 1, 1949 was the day when （ = ） the People’s Republic of China was founded.
This is the factory where（= ） we worked a year ago.
I don’t believe the reason why （= ） he was late for school.
即先行词与关系代词、副词之间被介词短语，同位语，谓语等分隔开来。
此种定语从句，在选择关系词时，要注意找准先行词。
eg. There is an expression in his eyes ( )I can’t understand.
I was the only person in my office ( ) was invited to the important ball.
I suggest you choose someone I think ( ) is very kind and friendly.
选择填空：
1、 It was April 29,2011 Prince William and Kate Middleton walked into the palace hall of the wedding ceremony.
A. that B. when C. since D. before
2、)Gutter oil is illegally recycled cooking oil, contains chemicals that are harmful to the human body and can even cause cancer.
A. it B. which C. where D. that
3、 Between the two parts of the concert is an interval, the audience can buy ice-cream.
A. when B. where C. that D. which
4、 The old town has narrow streets and small houses are built close to each other.
A. they B. where C. what D. that
5、 Whatever is left over may be put into the refrigerator, it will keep for two or three weeks.
A. when B. which C. where D. while
6、 English is a language shared by several diverse cultures, each of ------- uses it somewhat differently.
A. which B. what C. them D. those
7、 A bank is the place they lend you an umbrella in fair weather and ask for it back when it begins to rain.
A. when B. that C. where D. there
8、 She has a gift for creating an atmosphere for her students ------ allows them to communicate freely with each other.
A. which B. where C. what D. who
9 Ted came for the weekend wearing only some shorts and a T-shirt, ------ is a stupid thing to do in such weather.
A. this B. that C. what D. which
10、 She showed the visitors around the museum, the construction ------ had taken more than three years.
A. for which B. with which C. of which D. to which
11、 The school shop, customers are mainly students, is closed for the holidays.
A. which B. whose C. when D. where
12.He was so pleased with all we had done for him he wrote us a letter to praise for it.
A. what; what B. what; that C. that; what D. that; that
13.The moon travels round the earth once every month, is known to everybody.
A. it B. as C. that D. what
14、 is often the case with elder people, my grandma, talked about my new hairstyle for at least 50 minutes nonstop.
A. That B. Which C. As D. It
15.After graduating from high school, you will reach a point in your life ------- you need to decide what to do.
A. that B. what C. which D. where
16.The novel was completed in 1978, the economic system has seen great changes.
A. when B. during which C. since then D. since when
17.Books bring us into the presence of the greatest minds have ever lived.
A. which B. who C.不填 D. that
18.The world is made up of matter.
A. in that we live B. on which we live
C. where we live in D. we live in
19.David is such a good boy all the teachers like.
A. that B. who C. as D. whom
20.Is this the reason at the meeting for his carelessness in his work?
A. he explained B. what he explained
C. how he explained D. why he explained
21.He was very angry and I can still remember the way he spoke to me.
A. how B. that C. what D. which
22.That’s the new machine parts are too small to be seen.
A. that B. which C. whose D. what
23.I’ve become good friends with several of the students in my school ------- I met in the English speech contest last year.
A. who B. where C. when D. which