定语从句教案全英（精选5篇）
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定语从句教案全英【第一篇】
1、初步了解定语从句的概念、结构。
2、初步学习并掌握定语从句的规则，尤其是关系代词『who，which，that以及whose』的用法。
1、定语从句三要素及关系词的选用
2、只能that或which的情况；
1、举例讲解，说明定语从句的用法。
2、以讲练结合的方法加深学生印象。
a beautiful girl a handsome boy a clever child
1、 定语是用来修饰名次或代词的。
this is the boy who is clever.
2、定语从句(attributive clauses)定义：在主从复合句中修饰名词或代词的从句 定语从句的特点：
定语从句
的引导词关系代词where （地点状语）关系副词
when （时间状语）
why （原因状语）
1、who和whom指人，在从句中分别做主语和宾语，做宾语时可被省略。
the handsome
the tall
the
定语从句在下列情况下只能用that，而不能用which指物。（指人时可以用who/whom）
1、 当先行词被形容词最高级修饰时。如：
2、 当先行词是不定代词everything, anything, nothing （something 除外）， all, none, few, little, some等代词时，或当先行词受every, any, all, some, no, little, few, much等代词修饰时。如：
3、 当先行词被序数词修饰时。如：
4、 当先行词被表示“正是”的the very, the only修饰时。如：
5、 当先行词前面有who, which等疑问代词时。如：
6、 当先行词为人与动物或人与物时。如：
part 1.结合课文例句，找出先行词和关系词
1、 but the one million people of the city, who thought little of these events, went to bed as usual that nigh.
2、 it was heard in beijing, which is one hundred kilometers away.
3、 a huge crack that was eight kilometers long and thirty metres wide cut across houses, roads and canals.
4、 the number of people who were killed or injured reached more than 400,000.
5、 the army organized teams to dig out those who were trapped and to bury the dead.
6、 workers built shelters for survivors whose homes had been destroyed.
1、 he laughs best who laughs last.
2、 he who makes no mistakes makes nothing.
3、 he that gains time gains all things.
4、 he who nothing questions, nothing learns.
5、 he that cannot ask cannot live.
6、 a friend is someone who knows all about you and still loves you.
7、 god helps those who help themselves.
8、 he who does not reach the great wall is not a true man
9、 he who does not advance loses ground.
part3 practice
1、 do you know the girl _____ is talking with your mother?
a. who b. which c. whose d. /
2、 this is the kite _______ billy fisher gave to tom
a. who b. which c. / d. both b and c
3、 he was the only one ______ was saved in the earthquake.
a. who b. that c. which d. a and b
4、 this is the only present _____ i like.
a. who b. that c. which d. b and c
5、 this is the most beautiful place ______ i have ever seen.
a. which b. who c. where d. /
6、 all _______ i can do is to give him some money.
a. that b. which c. who d. what
7、 is there anything else _____ you need?
a. which b. that c. who d. what
8、 the museum _____ we visited last week isn’t far from here.
a. where b. which c. what d. who
9、 most of the people ____ lost their lives in the earthquake are sichuan natives.
a. when b. who c. how d. which
10、 the boy ____ you saw just now is tom’s brother.
a. which b. whose c. when d. /
11、 the bike and its rider _____ had run over an old woman were helped up by the policeman.
a. which b. that c. it d. whom
12、 is this the factory _____ you worked five years ago?
a. in which b. in where c. in that d. that
1、 do you like the present _______ i bought you yesterday?
2、 the storybook _______ was written by his uncle is quite interesting.
3、 the boy _______ computer doesn’t work well needs your help.
4、 this is the best movie _______ we have seen this year.
5、 the doctor _______ we met in the street is from america.
6、 the passengers and the suitcases _____ were in the waiting room had to wait for another plane.
7、 who is the girl _______ you want to make friends with?
8、 this is the last lesson _______ mr. smith taught us.
9、 i, _____ am your friend, will help you out.
10、 the building ___________ wall is white is my uncle’s house.
11、 the boy _______ john spoke with is my brother.
12、 will you please lend me the very picture _________ you bought yesterday?
13、 the students ________ the teacher praised at the class meeting is our monitor.
14、 the season _________ comes after spring is summer.
15、 this is the first museum __________ we visited last saturday.
16、 the girl ________ leg was broken in the earthquake was taken to the hospital.
17、 i found some photos of interesting places _________ were not far away from our city.
18、 there is a boy downstairs _________ want to see you.
19、 the river ________ banks are covered with trees is very long.
20、 i’m going to meet tom ______ they say is a good boy.
定语从句教案全英【第二篇】
1、知道三种特殊的电话号码及其作用。
2、了解使用这些特殊的电话号码的具体情况。
1、教师通过提问创设情境，引起幼儿兴趣。
教师：小朋友，你知道自己家的电话号码是多少吗？请幼儿现场打电话给家里熟悉的人。
教师：有一些特殊的电话号码，它们是很有用的，你们知道有哪些吗？（幼儿自由讲述）
2、教师引导幼儿认识几种特殊的电话号码，知道它们的用途及其与人们生活的关系。
教师出示写有"110"的图片，引导幼儿认识。
教师：小朋友，你们看这是什么号码，在什么情况下需要使用这个电话号码呢？它对我们的生活有什么样的帮助呢？打了这个电话什么车子会出现？谁会出现？他们会做什么？
依次出示"120"、"119"等电话号码的图片，指导幼儿了解它们的作用以及相关的工作人员及其活动，并知道这些人员的活动与人们关系。
3、教师总结，活动结束。
1、课件与幼儿互动能大大增加幼儿的学习兴趣。在课件中我引入了幼儿十分喜欢的卡通形象一一天线宝宝拉拉，让他代替教师向幼儿提问、对幼儿的回答进行评价、引出游戏环节等，很好地吸引了每个幼儿，让他们始终保持聆听、观看和积极参与的热情。
2、幼儿对活动提供的各种通讯工具（为了达到让幼儿感知不同类型的通讯设备及使用方法的隐性目标）似乎并不在意，所有模拟打电话的幼儿都选择了同一款电话机，这意味着在本次活动中这一隐性目标是否必要得进一步考虑。
3、本活动侧重社会性教育与安全教育，还可以渗透一些在紧急情况下保持沉着、镇静的情感教育。
4、紧急情况下的自救或互救能力也是生命教育中的重要内容之一，为了更好地提高幼儿这方面的能力，还可以尝试协同家长一起开展此活动，如让幼儿事先记住家庭地址、家庭电话等，让幼儿进行更加真实的尝试。
高中定语从句英语教案【第三篇】
一、定语从句的引导词
1、一共有9个：who, whom ,whose, that,which, when,where, why,as
与名词从句相比：定从不能由what和how引导；which的含义改变；定从内部的介词可以放引导词前。
2、引导词的功能有哪些？
（1）引导定语从句
（2）代替先行词在定语从句中充当一个成分。（先行词在从句中不再出现）
二、定语从句的关键
1、首先，要能判断出该从句是什么从句：
（1）放句首没有用逗号分开的，一般是主语从句，也有可能是状语从句，但从句结束后若有体现时态变化的动词，则一定是主语从句。
（2）放及物动词后，若及物动词不是被动语态，后面一定是宾语从句；若该及物动词是被动语态，后面一般是主语从句（It+ is + adj/n./done+that/whether/when…）或状语从句。
（3）放be动词后，后面一定是表语从句，但 “It is/was + 从句(被强调成分) + that”是强调句（强调句中“非谓语”）。
（4）放名词后，一般是定语从句，但若该名词有“内涵/内容”(fact/truth/news/information/ problem/suggestion)， 则很可能是同位语从句。
（5）用逗号分开的从句，一般是状语从句或 as/which引导的定语从句，也要注意用放在句中用逗号分开的“插入语”(however, for example,believe it or not等)。
2、其次，判断出是定语从句后可以用“三个优先”法做题：
（1）优先选择含whose的选项，能与空格后的名词构成“某人的某物”搭配，一般就是答案；
（2）优先选择含介词的选项，然后看该介词与从句中的谓语是否能构成符合逻辑的搭配；
（3）用逗号分开的定从，优先考虑as和which,若该空能翻译为“一件事”而从句意思是通顺的，则放句首就用as,句末用which(若该空能翻译为“如同”“像…一样”则应用as)
3、再次，做定语从句题可以用“三问法”来检测是否出错：
（1）先行词本身是否为特殊的词？
way+ in which/that/省略
指物的不定代词：anything, one, some,many, a lot, all, both, that等 + that
指人的不定代词或数词：one, those, anyone, two等 + who
既有人又有物： + that
“抽象的地点”condition, situation,case, point + where
“抽象的时间”one’s stay/visit + when
在特定语境中可以作“地点/位置”理解的词：trousers/ sleeves + where
（2）先行词前面有无特殊的词？
有不定代词修饰：all/every/little/much+ …+ that
有最高级/序数词修饰：the best/second … + that
有just the/ the very/ the only/ the last等修饰：+ that
有who/which疑问词：+ that(避免重复)
有the same/ such/ as修饰：一般+ as
（注意： ①第一个as是否为一个以as结尾的搭配，如regard…as；
②区分such…as（定从）与such …that“如此…以至于”）
（3）先行词在定语从句中充当什么成分？
注意：从句中spend后的“时间”，以及visit后的“地点”，不是状语，而是宾语，应该用不定代词
4、只能用that引导定语从句有哪些情况？
先行词前为all, everything, nothing,something, anything, little, much等不定代词时；
先行词前有：all, every, no, some, any,little, much, few等不定代词修饰时；
先行词被序数词修饰时；
先行词被形容词最高级修饰时；
先行词前only, just, very, last有等修饰时；
先行词是表示人和物混杂的两个名词时；
主句是以who, which,开头的疑问句或先行词是疑问代词时；
在修饰时间、地点等先行词时，只有用that代替when, where等引导词；
例I'll never forget the Sunday (that) you first arrived.
Do you know anywhere (that) I can get a drink ?
先行词为reason, way (意为“方法”)时，常用that 代替why,which, in which，也可省略。
引导词在定语从句中作表语时，多用that引导。
先行词是主句表语时；
例It is a dictionary that will help you a lot.
当主语以there be 开头时；
当先行词是数词时；
同一个复合句里有两个定语从句，一个用which，另一个通常用that。
5、reason后面用什么引导？way 后面用什么引导？
reason后面的定语从句用why引导。
way 后面定语从句用in which 或 that引导that可以省略。
6、when引导的定语从句等于什么引导的定语从句？
when引导的定语从句等于介词+ which引导的定语从句。
7、where 引导的定语从句等于什么引导的定语从句？
where 引导的定语从句等于介词＋which引导的定语从句。
8、one of 和 the (only) one of引导的定语从句在主谓一致问题上应注意什么？
前者引导的定语从句谓语动词用复数；后者用单数。
9、限制性定语从句与非限制性定语从句有和区别？
限制性定语从句是主句不可缺少的一个部分，缺少后主句意思不完整。非限制性定语从句是对主句的进一步说明，不要从句对主句意义无多大影响；非限制性定语从句前后有逗号隔开。而且非限制性定语从句中不能用that。
10、as 和which引导的非限制性定语从句在用法上有什么区别？
as和 which 都可以引导非限制性定语从句．都可以代替主句中的整个内容或某一成分。
as 引导的非限制性定语从句可以位于句首，并常和know, see, expect等词连用，意为：“正如……”，而which不能位于句首。
11、as 可以用于哪些结构中引导定语从句？
such... as； the same... as； so ...as..
12、the same…as和 the same…that 引导的定语从句如何区别？
the same…as 引导的定语从句指的是相同事物，强调同类。
the same…that引导的定语从句指的是同一物。
13、such…as…和 such…that…如何区分？
such…as…引导的是定语从句，as必须代替先行词在其引导的从句中充当成分。
such…that…引导的从句是状语从句，that只是引导从句并不在其引导的从句中充当成分，在选择填空首先看从句中是否缺句子成分，如果缺成分就要考虑是定语从句；如果不缺成分就要考虑是状语成分。
14、whose 引导定语从句有那些注意点？
whose 作定语，后面跟名词。一般有三种表示形式：
例This is the dictionary whose cover has come off.
= This is the dictionary the cover of which has comeoff.
= This is the dictionary of which the cover has come off.
15、 “介词 + 关系词” 开头的定语从句有哪几种情况？
注意：引导定从的介词后不能加who/that
（1）先行词在从句中做状语，用来替换when/where/why的：in/on/from/for/in front of + which/whom:
（2）“of所有格”： the+名词+ of + which/whom； of + which/whom +… the+名词
（3）“某个范围中的多少”： some/both/the former + of + which/whom; of + which/whom … some…
（4）偶尔可用“介词+ whose”和“介词+where”
三、关系代词引导的定语从句
关系代词所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。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。
1、who指人，在从句中做主语
The boys who are playing football are from Class One.
2、whom指人，在定语从句中充当宾语，常可省略。
Mr. Liu is the person (whom)you talked about on the bus.
注意关系代词whom在口语和非正式语体中常用who代替，可省略。
The man who/whom you met just now is my friend.
3、which指物，在定语从句中做主语或者宾语，做宾语时可省略
Football is a game which is liked by most boys.
4、that指人时，相当于who或者whom；指物时，相当于which。在定语从句中做主语或者宾语，做宾语时可省略。
The number of the people that/who come to visit the city each year rises one million.
5、whose通常指人，也可指物，在定语从句中做定语
He has a friend whose father is a doctor.
whose指物时，常用以下结构来代替：
The classroom whose door is broken will soon be repaired.
=The classroom of which the door is broken will soon be repaired.
Do you like the book whose cover is yellow?
=Do you like the book the color of which is yellow?
（注意：the + 名词 + of which/whom常考！）
四、介词+关系代词whom/which引导的定语从句（重点）
关系代词在定语从句中做介词宾语时，从句常由介词+关系代词引导：
The school (that/which) he once studied in is very famous.
=The school in which he once studied is very famous.
注意
1、含有介词的动词短语一般不拆开使用，如：look for, look after, take care of等
（1）This is the watch which/that I am lookingfor.(T)
（2）This is the watch for which I amlooking. (F)
2、若介词放在关系代词前，关系代词指人时用whom，不可用who或者that；指物时用which，不能用that；关系代词是所有格时用whose
（1）The man with whom you talked is my friend.(T)
（2）The man who/that you talked with is my friend.(F)
3、“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，构成some of which/whom等类似结构引导的定语从句。(重点：常考！)
（1）He loved his parents deeply, of whom both are very kind to him.
（2）In the basket there are quite many apples, some of which have gone bad.
（3）There are forty students in our class in all, most of whom are from big cities.
在特定语境中，可以用“介词+ whose/where”引导定语从句
The boss in whose department Ms King once worked is a kind man.
高中定语从句英语教案【第四篇】
教学目标
1. 知识目标：掌握下列重点单词和词组的意思及用法ache, evercise, weight, give up, interest及其词汇转化
2. 能力目标：能够询问有关健康的信息，表达态度，提供建议。学习使用由whose引导的定语从句。
3.情感目标：通过了解tony 的经历，培养体谅、关爱他人的情感态度。
教学重难点
1.重点：对话中的句型应用，由whose引导的定语从句
2.难点：由whose引导的定语从句的运用。
教学工具
课件
教学过程
[课前朗读]: 朗读生词ache, exercise, weight, give up, interest, tasty----taste, menu, persuade.根据音标读出单词并了解汉语意思，养成学生自主学习词汇的习惯，促使学生迅速进入学习状态。
[检查词汇预习]：
a.采取学生结对、小组互查等形式来检查学生对词汇的预习情况。
b.朗读单词，注意发音。
一、情境导入
教师可问学生：(1)What’s your favourite sport?(2) How do you think we can keep fit?(3) Have you ever remembered what happened to Tony in Module9?这样会调动学生用英语思维的积极性， 引出本单元话题。
二、小听力(自主完成，合作释疑)
听Activity 2,完成表格
Betty
Lingling
Taijiquan
Weight
training
Running
针对表格进行说的练习。如：How does Lingling think of Taijiquan and running?
三、大听力 多层听
1.听Activity 3，完成下列各题。
1).Who has Betty bumped into?
A. The head teacher B. The English teacher and Betty
2).Does Daming think that the boy in his team can go to a sports school ?
A. Yes, he does B. No， he doesn’t C. We don’t know
3).What does Daming want the head teacher to write ?
A. Something about staying healthy
B. Something about training for the Olympics
C. something about buying a camera
2. 再听Activity 3，完成下列表格。
1. How did Tony feel
the basketball training? 1. He feels very
2. What will the boy in Daming’s team need to do? 2. He needs to do a lot of___ _____
3. Why isn’t allowed to use his father’s camera any more? 3. Because he almost __ ______ it last time.
四、默读对话，自主完成Activity 4.
完成后小组展示并纠正。小组间合作解决activity 3中不懂的地方，教师适时点拨。
五、突破重点与难点
对重点内容和疑难问题进行合作探究学习。
legs ache a bit. ___________________(翻译)
(1) a bit 译为_____________. 其同义短语是___________.
自主造句：_______________________________.
2. Don’t give up if you want to stay fit.__________________________.
give up, 放弃。其中up是代词，后跟名词作宾语时可放在短语 ，也可放在 ，而跟代词宾语时只能放 。例如：give it/them up放弃做某事----give up doing sth.
自主造句： _______________________.
我们学过的可加动名词的动词或短语有
is not fit or strong enough.____________________________
总结enough 的用法并举例
自主造句：
4. I’ve got a friend whose brother is training for the Olympics.此句含有一个whose 引导的定语从句，whose在从句中作定语，又如：
He is the only student in our class whose father is a policeman.
There is a boy whose parents want him to go to a sports school.
先行词为无生命的物体时也可以用whose 引导定语从句。如：
The book whose cover is green is mine.
No one now lives in the room whose windows are broken.
5.找出含有whose 的定语从句并翻译句子。分析定语从句的先行词。
___________________________________________________.
___________________________________________________.
___________________________________________________.
___________________________________________________.
5. 自主补充完善
六、归纳短语
通过对对话的学习，让学生归纳本课的短语，可以小组合作，然后通过展示呈现出一个小组的成果，然后其他小组补充完善。
1. _____________________ 9._______________________
2. _____________________ 10.______________________
3. _____________________ ______________________
4. _____________________ _______________________
5. _____________________ ______________________
6. _____________________ ______________________
7. _____________________ ______________________
8. _____________________ ______________________
七、诵读积累
(一)跟录音机朗读对话，模仿语音语调。
(二)读熟对话
(三)读烂短语
(四)读烂下列重点句子
’t give up if you want to stay fit.
2. He isn’t fit or strong enough.
’m not allowed to use it any more.
’s my father who gives me my pocket money.
5. Don’t talk to me about that.
6. What’s up?
what?
8. (含有whose的定语从句)
八、说的训练：
Work in pairs. Ask and answer the questions in Activity 5.
九、当堂检测
(一)翻译下列短语及句子：
1.放弃___________________2.一点_____________________________
3.保持健康 _______________ 4.足够强壮_________________
5.碰巧遇到_________________6.发生什么事了？_________________
7.看起来像 ________________ 8.祝你好运 ________________
高中定语从句英语教案【第五篇】
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