本文目录
高中定语从句讲解教案
用关系代词还是关系副词引导定语从句主要看关系词在定语从句中的作用（即所担当的成分）。试比较：
A.Ikno***ic.我知道一个我们可以野炊的地方。
Iknowaplacewhich/thatisfamousforitsbeautifulnaturalscenery.我知道一个以自然景色优美而闻名的地方。
B.Iwillneverforgetthedayswhenwespentourholidaystogether.我永远忘不了我们一起 度假的日子。
Iwillneverforgetthedaysthat/whichwespenttogether.我永远忘不了我们一起度过的日子。
C.Thisisthereasonwhyhewasdismissed.这就是他被解雇的原因。
Thisisthereasonthat/whichheexplainedtomeforhisnotattendingthemeeting.这就是他向我解释的他没有参加会议的原因。
（五） but 有时也用作关系词引导定语从句。如：
Thereareveryfewbutadmirehistalents. 很少有人不赞赏他的才干的。（but=whodon’t）
（六）定语从句与同位语从句的区别
1．定语从句修饰限定先行词，它与先行词是修饰关系；同位语从句说明先行词的具体内容，它与先行词是同位关系。
TheplanethathasjusttakenoffisforParis.（定语从句）刚刚起飞的那架飞机是开往巴黎的。
Thefactthathehasalreadydiedisquiteclear.（同位语从句）他已经去世了，这个事实很明了。
2．定语从句由关系代词或关系副词引导，关系词在从句中担当相应的句子成分，关系代词在从句中作宾语时经常可省略。同位语从句主要由连词that引导，在从句中一般不担当成分；有时也由where,when,how,who,whether,what等连词引导，这些连词则在从句中担当成分。
Thenewsthathetoldmeistrue.（定语从句）他告诉我的消息是真的。
Thenewsthathehasjustdiedistrue.（同位语从句）他刚刚去世了，这个消息是真的。
Theproblemthatwearefacingnowishowwecancollectsomuchmoney.(定语从句)我们现在面临的问题是如何筹集这么多资金。
Theproblemhowwecancollectsomuchmoneyisdifficulttosolve.（同位语从句）我们如何筹集这么多资金，这个问题很难解决。
Thequestionthatheraisedpuzzledallofus.（定语从句）他提出的问题让我们很为难。
Thequestionwhetherheissuretowinthegameishardtoanswer.（同位语从句）他是否一定会赢得那场比赛，这个问题很难回答。
3．同位语从句与先行词一般可以用动词be发展成一个完整的句子,而定语从句则不能。如：
A.Theideathathewecouldasktheteacherforadviceiswonderful.（同位语从句）我们可以向老师请教，这个主意不错。
Theideawasthatwecouldasktheteacherforadvice.
B.Thefactthattheearthmovesaroundthesunisknowntoall.（同位语从句）地球围绕太阳转，这个事实人人皆知。
Thefactisthattheearthmovesaroundthesun.
C.Payattentiontotheproblemhowwecanprotectthewildanimals.（同位语从句）请注意如何保护野生动物这个问题。
Theproblemishowwecanprotectthewildanimals.
Exercises:
1.There are three bedrooms in the house,_____ is Mary's.
A the smallestof whichB the smaller of which
C the smallest of themD the smallest one
2.The Greens will move into the new house next Monday,_____ it will be completely finished.
A by the timeB by which timeC by that timeD by this time
3.Alice has a large collection of phone,_____ was taken in london.
A none of themB no one of whichC all of whichD none of which
4.With the fast development of agriculture, the people ____ village I taught beforelived a happy life.
A whoB whoseC in whoseD in which
5.There is a moutain ____ the top is always covered with snow.
A whoseB ofwhichC it'sD that
6.She may have missed her train, in ____ case she won't arrive for another hour.
A whatB thatC whichD this
7.1)I have three children,and two of _____ are doctors.
2)I have three children, two of ____ are doctors.
8.There two thousand students in our school,____ are girls.
A two-thirds in whichB two-thirds in themC two-thirds of themD of whom two thirds
9.I have bought two ballpens,_____ writes well.
A neither of themB none of themC neither of whichD none of which
（1---6ABDCBC 7----9B DDC）
特殊结构定语从句点击
1. These houses are sold at such a low price ________ people expected.
A. likeB. asC. thatD. which
2. I've never heard so interesting a story ________ you told me.
A. asB. that C. of whichD. about which
3. I've seen the same film ________ you saw yesterday.
A. thatB. which C. asD. like
4. I'll buy the same coat ________ you wear.
A. that B. which C. as D. like
5. He made another wonderful discovery, ________ of great importance to science.
A. which I think is
B. which I think it is
C. which I think it
D. I think is
6. ________ is known to everybody, the moon travels round the earth once every month.
A. It B. As C. That D. What
7. This is the first time ________ he has been here.
A. that B. when C. at which D. which
8. I don't like ________ you speak to her.
A. the wayB. they way in thatC. the way whichD. the way of which
答案与简析：
1. B。当先行词被such修饰时，定语从句用as引导，即构成结构为"such+（a/an）＋形容词＋名词＋as"引导的定语从句，意为"......像......一样的"。整个句子意为：这些房屋以人们原来估计的那样低的价格出售。
2. A。由so interesting a story = such an interesting story和上面一题的解释便可得知答案。as在定语从句中作宾语。整句意为：我从未听说过像你告诉我那样有趣的故事。
3. A
4. C。当先行词被same修饰时，定语从句由that或as引导，但意思不同。用that引导定语从句指同一物，而用as引导定语从句指同类事物。
5. A。做此题的关键是要知道I think在定语从句中作插入语，做题时将其去掉便可容易得到答案。
6. B。As在此引导非限制性定语从句，代表它所修饰的整个句子内容，并且它可放在所修饰句子的前、中或后面。其常见结构如：as you know, as is said above, as is often the case（情况经常是这样）等。如选A，则需将逗号改为that；如选D，则需将逗号改为is that。
7. A。当先行词为the first time, the last time等时，定语从句的引导词用that而不用when。
8. A。当先行词为way时，定语从句的引导词用that或in which, 也可省略。
定语从句
1．This is the best factory ____we visited last year .
A. where B. whichC. in whichD. that
2.Is this the factory ____computers are built ?
A. that B. which C. in whichD. in that
3.please pass me the dictionary ____cover is red .
A. whose B.its C. which D. which of
4.The man ____has arrived .
A. whom I told you B. that I told you
C. whom I told you about him D. I told you about
5. Do you know the comrade ____we are talking ?
A. to whomB. to who C. whom D. to that
6. They visited the house ___the great writer was born .
A. from where B. in which C. which D. in where
7. The comrade ___is speaking at the meeting is my teacher .
A. whomB. which C. who D. whose
8. He asked us to watch carefully everything ___he did in class .
A. who B. that C. what D. where
9. I’ll visit the professor tomorrow ,___he will be back from Shanghai .
A. who B. thatC. whenD. which
10.The school ___I study is a new one .
A. on which B. at where C. on that D. at which
11. China has many islands,____the largest is Taiwan .
A. in which B. at which C. which D. of which
12. The city ____my mother grew up is not far from here .
A. what B. where C. that D. which
13. Our teacher lives in the house ____door faces to the north .
A. which B. his C. thatD. whose
14. Do you know the man ___your father nodded ?
A. whom B. to whomC. to who D. about whom
15.Wrestling is a sport in ___people easily get hurt .
A. that B. when C. whichD. what
16. I told you ____I know .
A. all that B. all which C. all whatD. all whom
17.China has a lot of famous writers ,one ___is Lu Xun .
A. of which B. of whomC. of who D. of them
18. Is this factory ____we visited last year ?
A. in whichB. around that C. whom D. the one
19. Who is the man ____was there ?
A. whoB. which C. that D. whom
20. Is there anything ____I can do for you, sir ?
A. thatB. which C. whose D. who
21. I still remember the day ____she first wore that green dress .
A. which B. in which C. on thatD. on which
22. The knife ____we used to cut the bread is very sharp .
A. with whichB. with it C. with that D. which
23. The games ____the young men competed in were difficult .
A.in which B. which C. it D. who
24.It rained hard yesterday, ____ prevented me from going to the park..
A. that B. which C. as D. it
25. George Mallory was an English school teacher _____ loved climbing.
A. whoB. whomC. he D. which
历届高考英语单项选择题定语从句精选
26.His parents wouldn’t let him marry anyone ______ family was poor.
A.of whom B.whom C.of whose D.whose
27.She heard a terrible noise, _______ brought her heart into her mouth.
A.it B.which C.this D.that
28.In the dark street , there wasn’t a single person _____ she could turn for help.
A.that B.who C.from whom D.to whom
29.The weather turned out to be very good , ____ was more than we could expect.
A.what B.which C.that D.it
30.After living in Pairs for fifty years he returned to the small town ____ he grew up as a child.
A.which B.where C.that D.when
31．Carol said the work would be done by October,______personally I doubt very much.
A. it B.that C.when D.which
32．Dorothy was always speaking highly of her role in the play, ________,of course , made the others unhappy.
A．who B．which C．this D．what
33.Recently I bought an ancient Chinese vase , _____ was very reasonable.
A.which price C.the price of which
C.its price D.the price of whose
34._____ has already been pointed out , grammar is not a set of dead rules.
A.As B.It C.That D.Which
35.He lived in London for 3 months , during ____ time he learned some English.
A.this B.which C.that D.same
36.On the wall hung a picture, _____ color is blue.
A.whose B.of which C.which D.its
37.Whenever I met him , ____ was fairly often, I like his sweet and hopeful smile.
A.what B.which C.that D.when
38.The visitor asked the guide to take his picture _____ stands the famous tower.
A.that B.where C.which D.there
39.The boss ____ department Ms King worked ten years ago look down upon women.
A.in which B.in that C.in whose D.whose
40.I don’t like _____ you speak to her.
A.the way B.the way in that C.the way which D.the way of which
41.I had neither a raincoat nor an umbrella ._______ I got wet through .
A.It’s the reason B.That’s why
C.There’s why D.It’s how
42.He made another wonderful discovery , ____ of great importance to science.
A.which I think is B.which I think it is
C.which I think it D.I think which is
定语从句答案:
1-5DCADA 6-10 BCBCD 11-15 DBDBC 16-20 ABDCA 21- 25 DABBA
KEYS: 26-30 DBDBB 31-35 DBCAB 36-40 ABBCA 41-42 BA
定语从句的用法归纳总结视频讲解
定语从句是高中英语的重要语法项目之一，它的结构和用法比较复杂。我们应从哪些方面有效地复习定语从句呢？下面就是我给大家带来的定语从句的用法讲解，希望大家喜欢！
[定语从句的种类]
定语从句分为限制性和非限制性两种。限制性定语从句是 句子 不可缺少的部分，如去掉主句意思就不完整或失去意义；非限制性定语从句是先行词的附加说明，去掉也不会影响主句的意思。它与主句之间通常用逗号分开，一般不用that引导，关系词不可省略。如：
This is the book that I want to read. （限制性）
Tom’s father， who arrived just now， is a famous scientist. （非限制性）
非限制性定语从句的先行词成分可以是整个主句，非限制性定语从句常用which引导，修饰整个句子。定语从句的谓语动词要用第三人称单数。例如：
The weather turned out to be very good， which was more than we could expect.
关系代词引导的定语从句
关系代词所指代的先行词是表示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。
在定语从句中，who和that既可作主语又可作宾语，whom只可作宾语（作宾语时可以省略）。如：
Is he the man who/that wants to see you？ （who/that在从句中作主语）
The man （whom/who/that） you spoke to just now is our English teacher. （whom/who/that在从句中作宾语，可省略）
[whose]
在定语从句中作定语，可用来指人或物，表示物时相当于“the+名词+of+which”或“of+which+the+名词”。如：John， whose wife is ill， can’t come to the party.
[which & that]
which和that指代的先行词是表示事物的名词或代词，在定语从句中可作主语、宾语等。如：
Please show me the radio that/which you have just bought. （that/which在从句中作宾语，可省略）
This is the film that/which created a great sensation. （that/which在从句中作主语）
只能用that而不能用which的情况：
1. 先行词是最高级或被最高级修饰时。如：This is the best dictionary that I’ve ever used.
2. 先行词是序数词或被序数词修饰时。如：The first thing that we should do is to get some food.
3. 当先行词是anything， everything， nothing， something， few， all， none， little， some等不定代词时，或是由every， any， all， some， no， little， few， much等词修饰时。如：Tom told his father all that had happened.
There is little that I can do for you.
4. 先行词既有人又有物时。如：They talked about the teachers and the schools that they knew.
5. 先行词被the only，the very，the right等修饰时。如：This is the very book that I want to have.
6. 在which，who，whom引起的问句中，为避免重复。如：Who is the girl that talked to you yesterday？
7. 关系代词在定语从句中作表语时。如：China is not the country that it was.
只能用which，不能用that的情况：
1. 在非限制性定语从句中。如：Beijing， which is the capital of China， has a very long histroy.
2. 在介词后面，即“介词+which（指物）”。如：This is the house in which we lived three years ago.
[as]
关系代词as代替的先行词是人或物的名词， 在从句中作主语、宾语和表语。
as引导限制性定语从句时，常和such， the same， as（so）连用， 构成such ... as， the same ... as， as/so ... as等结构，在从句中可作主语、宾语和表语。如：
Don’t trust such men as praise you to your face. （在定语从句中作主语）
I have the same trouble as you have. （在定语从句作宾语）
It’s as pleasant a film as I have ever seen. （在定语从句作宾语）
但是当先行词被the same修饰时，that也可以引导定语从句，但意义有所不同。the same ... as（指同样或同类的）， the same ... that（指同一个）。例如：
This is the same watch as I lost.
This is the same watch that I lost.
as也可单独使用，引导非限制性定语从句，修饰整个主句或主句中的一部分，放在句首、句中或句末。如：
As is known to us all， smoking is harmful to one’s health. （指代整个主句，在从句中做主语）
He is late， as is often the case. （指代整个主句，在从句中做主语）
Light， as everybody knows， travels much faster than sound. （指代整个主句，在从句中做宾语）
as和which作关系代词的用法比较：
which引导的非限定性定语从句只能放在主句之后，which指代前面的一个句子或主句中的某一成分；as引导的非限定性定语从句能放在主句之前、中、后，既可指前面已经提到的情况，也可指后面提到的情况。
as引导从句时，有“为人所熟知”的含义，which则没有这层意思。as引导的从句往往表示的是一种附加说明，which引导的从句一般是较为重要的陈述。如：
His mother is ill， which makes him very sad.
As is expected， the England team won the football match.
[关系副词引导的定语从句]
关系副词when， where， why可代替的先行词是时间、地点或理由的名词，在从句中作状语， 相当于“介词+which”结构。例如：
I’ll never forget the time when/during which we worked in the factory.
This is the village where /in which he was born.
I don’t know the reason why/for which she looks unhappy today.
[判定用关系代词还是用关系副词]
关系代词与关系副词的选用，应看先行词在定语从句中充当什么成分：若作主语、宾语或定语，则用关系代词who，whom，that，which，whose，as等；若作状语， 就用where， when， why等关系副词。如：
The reason why I’m writing is to tell you about a party on Sunday. （状语）
The reason that/which he gave us sounded reasonable. （宾语）
Pisa is a city， which has a leaning tower. （主语）
Pisa is a city， where there is a leaning tower. （状语）
[介词+关系代词]
当关系代词作介词宾语时，就出现了“介词+关系代词”的结构引导定语从句的现象。当先行词指物时用“介词+which”，指人时用“介词+whom”，且关系代词不能省略。而这种结构中较难解决的问题是介词的选择问题：
1. 介词的确定可以根据整个句意来确定。
Oxygen is a kind of gas， without which we couldn’t live.
2. 介词可以根据与先行词的搭配来确定。
He gave me the book for which he paid a lot of money. （动词与介词搭配）
1949 was the year in which the P.R.C. was founded. （名词与介词搭配）
The snake， of which she used to be afraid， is her favorite animal now. （形容词与介词搭配）
定语从句的用法讲解相关 文章 ：
1. 英语中as引导的定语从句的相关讲解
2. 定语从句中关系词的用法讲解
3. 英语定语从句的用法
4. 英语数词的分类和用法
5. 高中英语语法知识总结:定语从句
6. 考点初中英语定语从句的用法
7. 非限制性定语从句的用法讲解
8. 英语语法:定语从句
9. 定语从句语法知识点汇总
英语的定语从句分析及详解
高中英语定语从句详解
定语从句用来充当句中定语的主谓结构；它主要用于修饰句子中的名词、代词。而定语从句的位置常常是紧跟在被修饰的名词、代词的后面。在被修饰的名词、代词与定语从句之间往往有一个关系词将其前后两部分联系成一个整体，或是构成一个名词短语；或是构成一个代词短语。但从结构上说，关系词与从句是一个整体。排除句子的其他各部分，这种带有定语从句的名词短语或是代词短语的构成可演示如下：
1）three signs that indicate a person is suffering from a panic attack rather than a heart attack
三种意味着一个人是患有惊恐症而不是心脏病的迹象在这个带有定语从句的名词短语中：
signs是：被修饰的名词；
that是：关系词；
that indicate a person is suffering from a panic attack rather than a heart attack是定语从句
2）those who drink a lot 那些大量饮酒的人在这个带有定语从句的代词短语中：
those是：被修饰的名词；
who是：关系词;
who drink a lot是：定语从句通过上面的演示,我们可以归纳出定语从句在句子中的位置、结构如下：
被修饰的名词 / 代词 + 关系词 + 句子 (其中，"被修饰的名词/代词"在语法叫作"先行词".)
要点提示：
1）"先行词"与"关系词"的内在联系"先行词"与"关系词"之间实质上是互等、互换的关系。也就是说，关系词的作用就是将先行词所表达意义"代到"从句中来起作用。例如：
They often become easily frightened or feel uneasy in situations （先行词）where (关系词)people normally would not be afraid .
他们常在人们一般不会感到害怕的情况下却很容易感到恐惧或是感到不自在。
（本句中的关系词where = 先行词（in）situations 。如果把这个复合句拆成两个分句，那就是：
They often become easily frightened or feel uneasy in situations
people normally would not be afraid in situations 由此可以看出，"先行词"与"关系词"之间实质上是互等、互换的关系）。 又例如：
Rude people are those （先行词） whose (关系词)behavior shows little respect
for the rules（先行词） that(关系词) the majority follows .
不讲礼貌的人是指那些，他们的行为对大多数人所遵从的规则并不表示尊敬的人。
由此我们还可以看出，"先行词"往往是分别重复出现在两个分句中的名词或代词。这也就是我们做定语从句的条件之必需。否则，"关系词"就无法去替代"先行词"而构筑定语从句了。这个道理就如同我们在计算机上"做剪贴以前要先做复制"一样。）
2）"先行词"的意义决定"关系词"的选择"关系词"的选择往往是由"先行词"自身表达的意义，以及它在从句中的语法功能而决定的。
这个意思就是说，假如"先行词"自身表达的意义是表示"人的意义"或是"物的意义"，那么我们就相应地选择表示"人的意义"或是"物的意义"的"先行词"。"先行词" 在从句中的语法功能也是决定"关系词"选择的重要条件。比如说，同样都是表示"人的意义"的"先行词"，如果它在从句中作主语，"关系词"就得用表示"人的意义"的主格形式，如果它在从句中作定语，"关系词"就得用表示"人的意义"的所有格形式。另外，有时"先行词"本身是表示事物的名词，而它在从句中却与介词构成了短语，在从句中充当状语，在这种情况下，我们就应该用"关系副词"而不能用"关系代词"了。例如：
Some people who are successful language learners often fail in other fields .
有些在语言学习上很有成就的人,在其他领域常常一无所成。
In our class , we have some students whose families are not in Wuhan.
我们班上有些家不在武汉市的同学。
There are many sounds which have a meaning and yet are not words .
有许多声音有意义但不是词。
Tell him to go to the classroom where we often have our English class .
如果把这个复合句拆成两个分句，那就是：
tell him to go to the classroom .We often have our English class in the classroom )
告诉他去我们常上英语课的那间教室。
(一) 关系词
从前面的讨论中我们可以清楚地看出，关系词在定语从句的构成里是至关重要的。我们甚至可以说，掌握不好关系词就无法做成定语从句，也无法理解文中带有定语从句部分的意思。因此，我们首先讨论一下关系词的有关问题。
定语从句中的关系词只有两类：关系代词和关系副词；没有连词。也就是说，定语从句中的所有关系词不但都有具体的意义而且都在从句中担任一定的成分。
1）关系代词：who , whom , whose , which , that 等。
who用于代替"表示人的意义"的先行词，并且在从句中作主语；在现代英语里，也可取代whom在从句中作动词的宾语。例如：
I have no idea about the man who wrote the article .
我不认识写这篇文章的那个人。
The little boy who is singing there can recite quiet a number of Chinese poems .
whom 用于代替"表示人的意义"的先行词，并且在从句中作动词或介词的宾语。在现代英语里，如果whom在从句中作动词的宾语，它与who可以通用；但是如果whom在从句中作介词的宾语，那么就只能用whom而不能与who通用了。当然，如果在口语或非正式文体中，介词没有提前，也就没有这点要求了。例如：
Who is the girl whom ( who ) you talked to just now ?
刚才和你说话的那个女孩子是谁？
Yesterday, I happened to meet , in the shopping center , the professor who ( whom ) I got to know at a party .
昨天在购物中心，我碰巧遇见了那位我在一次聚会上认识的教授。
They are looking for the patient on whom doctors just performed an operation . 他们正在寻找那位医生刚刚给他做过手术的病人。
(句中的关系代词whom代替the patient ，在从句中作介词on的宾语，而且介词on提到关系代词的前面，所以who 和whom就绝不可以通用了，此处只能用whom 。)
Who is the girl to who (whom) you talked just now ? （错误）
(句中的关系代词whom(who)代替the girl ，在从句中作介词to的宾语，但是由于介词to已提到了关系代词的前面,who 和whom就绝不可以通用了,所以如果还继续使用who句子就错了。此处只能用whom 。)
whose 用于代替"表示人或物意义"的先行词，在从句中作定语，往往与它所修饰的名词一起构成一个名词短语在从句中担当成分。Whose常表达"某人的、某物的"之意。例如：
Do you know the name of that girl whose brother is your roommate ?
你知道她的哥哥与你同寝室的那位女孩的名字吗？
Water whose boiling point is at 100 degree Centigrade has no color, no flavor.
沸点在摄氏100度的水无色、无味。
which 用于代替"表示事物意义"的先行词，在从句中作主语、宾语。例如：
Views which are entirely new or foreign may also be hard to accept .
那些全新的或是来自国外的观点或许也很难被接受。
I've got a novel which you may like to read .
我弄到一本你或许想看的小说。
That was a fault which could not be forgiven . 那是不能饶恕的错误。
that 既用于代替"表示人的意义"的先行词，也用于代替"表示事物意义"的先行词；在从句中既可以作主语，也可以作谓语动词的宾语，但是不能作介词的宾语。在一定范围内，that = who / whom / which 。例如：
Views that (which ) are entirely new or foreign may also be hard to accept .
那些全新的或是来自国外的观点或许也很难被接受。
Salaried people that ( who) earn more than a few thousand dollars must pay a certain percentage of their salaries to the federal government .工薪在几千美元以上的人必须将工资中的一定百分比交付给联邦政府。
Who is the girl to that you talked just now ? （错误）
要点提示：
定语从句中作宾语的关系代词可以省略;如果关系代词在定语从句中作宾语可以省略。例如：
This is the book ( which ) you were looking for yesterday .
这就是你昨天找的那本书。
I don't like the novel ( that ) you are reading .
我不喜欢你看的这本小说。
Who is the man ( whom ) you're talking about ?
你们谈论的那个人是谁？
定语从句中，关系代词的单复数取决于先行词的单复数。例如：
Those who are in their forties are required to have a physical examination this afternoon .
（先行词Those是复数，关系代词who也就看作是复数，所以从句的谓语动词就用了复数形式are了。）请那些年龄在四十几岁的人于今天下午去进行体检。
This is the magazine which was sent to me by post .
（先行词the magazine是单数，关系代词which也就看作是单数，所以从句的谓语动词就用了单数形式was sent） 这是通过邮局寄给我的杂志。
关系代词that 和which的区别
that 和which在一般情况都可以用于代替"表示事物意义"的先行词，在从句中作主语、宾语。但在下列情况下一般只用that而不用which ：
-- 先行词本身是all , everything , something , nothing , anything等不定代词时，例如：
Anything that can burn is a source of heat energy .
任何能够燃烧的东西都是热能源。
There must be something that happened to you .你一定出了什么事。
They had nothing that could cure of his disease .他们没有一点能治愈他疾病的东西了。
-- 先行词已有序数词或形容词的最高级或the last, the only等作定语时，例如：
This is the most impressive TV theater that has never been put on show before . 这是以前从未上演过的最有感染力的电视剧。
That is the only way that leads to your success .那是通向你成功的唯一之路。
We have to consider the first thing that starts our work .
我们必须要考虑启动我们工作的第一件事。
然而，在下列情况下却只用which而不用that：
-- 当先行词表示事物意义，并且在从句中作介词的宾语，那么就只能用which 。当然，如果在口语或非正式文体中，介词没有提前，也就没有这点要求了。例如：
The world in which we live is made of matter .
我们生活于其中的世界是由物质组成的。
Ocean currents affect the climates of the lands near which they flow .
洋流影响其流经的附近地区的气候。
The world that we live in is made of matter.
（正确。因为关系代词虽然在从句中作介词的宾语，但是介词没有提前，所以没有这点要求。）
我们生活于其中的世界是由物质组成的。
The world in that we live is made of matter.
（错误。因为关系代词在从句中作介词的宾语，而且介词已经提前，所以必须遵从这点要求。）
-- 在非限定性定语从句（关于这一点随后就要讲解）中，当关系词表示事物意义时, 只能用which 。这是语法所规定的，没有任何解释。例如：
The sun heats the earth , which makes it possible for plants to grow .
太阳给予大地热，这就使植物的生长成为可能。
The most important form of energy is electrical energy , which is widely used in our daily life .最重要的能源形式是电能，它广泛地运用于我们的日常生活之中。
-- as可以作为关系代词引导限定性定语从句、非限定性定语从句。例如：限定性定语从句 （常用于such … as和the same … as 等句式中）
Such points as you've mentioned are really important in solving the problem .
你提到的这些方面在解决这个问题上的确很重要。
People such as you describe are rarely seen nowadays .
你描述的这种人现在很少见了。
This computer has the same functions as that one has .
这台计算机有着和那台计算机一样的功能。
非限定性定语从句 （as可以作为关系代词引导非限定性定语从句时，as是指全句：也就是说，将整个主句看成一件事或是一个事实；并对其进行补充、说明。这种非限定性定语从句既可以放在主句之前，也可以放在主句之后。）
As I know , she hasn't got married . 如我所知，她还未结婚。
They won the first place in the game, as could be expected.
可以预料，他们在比赛中得了第一。
Professor Li is extremely popular among students , as is known to all of us . 如我们大家所知，李教授极受学生们的欢迎。
2)关系副词：when , where , why 等。在定语从句，关系副词 = 介词 + which 。也就是说，每个关系副词里本身就已经含有了一个介词：when = 在什么时候，where = 在什么地方，why = 为什么原因，等。至于在英文中用哪个具体的介词，就得依具体情况而定了。
when 代替表示时间的名词，而这个名词在从句中又与介词构成了短语，在从句中充当状语,例如：
People will always remember the time when Hong Kong and Macao returned to our motherland .
人们会永远记住香港和澳门回归祖国的那一时刻。
He came at a time when we needed help . 他在我们需要人帮忙的时候来了。
We don't know the exact time when the English Evening will be held . 我们不知道英语晚会举行的确切时间。
where 代替表示地点的名词，而这个名词在从句中又与介词构成了短语，在从句中充当状语。例如：
The place where we're to have the Speech Contest has not been decided yet.我们举行演讲比赛的地点还未定下来。
He is living in a newly-built house where there used to be a pond . 他现在居住的新房是原先一个池塘的旧址。
That is a beautiful campus where I made a lot dreams .
那是一座我曾经在那儿有过许多梦想的美丽的校园。
why 代替表示原因的名词，而这个名词在从句中又与介词构成了短语，在从句中充当状语。例如：
He didn't tell her the reason why he was so happy .
他没有告诉她为什么他那么高兴的原因。
The reason why she was late is not so acceptable .
她迟到的原因不那么令人接受。
They explained the reason to us why they had misunderstood us before .
他们向我们解释为什么他们以前误解了我们的原因。
介词+关系代词
在这种结构中，关系代词若是表示人的意义，就只能用whom ；关系代词若是表示事物的意义，就只能用which 。而这种结构中较难解决的问题是介词的选择问题，因为这个问题的解决取决于多种因素：
A）动词与介词的搭配B）名词与介词的搭配C）形容词与介词的搭配，等等。总之，要依从句的具体需要而定。例如：
A）动词与介词的搭配
He has found a good job for which he is qualified .（ qualify + 名词+ for "使…具有…资格" ）他找到了一份他能胜任的工作。
The man to whom you talked just now will chair the meeting tomorrow . （ talk to + 名词 "与某人谈话" ） 你刚才与他谈话的那个人明天主持那个会议。
He is bargaining with the landlord over the monthly price at which the apartment rents .名词+ rent at + 表示价格的词 "某物以某价格出租" ）
他在与房东就那套公寓出租的月租金进行磋商。
B）名词与介词的搭配
They are still living in the little house in which they've been lived for 15 years . （ in the house "在屋子里" ）
他们现在还住在他们已住了15年的那个小房子里。
We've worked out a method by which our production can be raised on a large scale.( by a method通过某种方法) 我们已研制出了一个能大规模提高生产的方法。
She didn't realize the extent to which she had been distracted .（ to extend "到某种程度" ） 她没有意识到她心烦意乱的程度。
C）形容词与介词的搭配
The secretary with whom the boss is not happy will be fired for her inefficiency . (happy with "对…表示满意")
老板对其不满意的那个秘书将由于她没有工作效率而被解雇。
I've found the job for which I've been eager for a long time.（ eager for "渴望得到…" ） 我已找到了我渴望已久的那份工作。
He is a learned man with whom we are familiar .
(familiar with 熟悉…)他是一位我们熟悉的有学识的人。
2）定语从句的种类
在英文中，有两种定语从句：限定性定语从句与非限定性定语从句。这两种定语从句在其功能和形式方面都有明显的区别：
限定性定语从句
限定性定语从句与主句的关系很紧奏，对其先行词起限定、修饰的作用。如果将其去掉，会影响句子意思的完整性；有时甚至于引起费解、误解。例如：
Rainforests are being cleared for valuable timber and other resources to speed up the economic growth of the nationsin which they are located .
为了加速他们各自所在国家的经济发展，热带雨林作为有价值的原木和其他资源正为人们所砍伐。
Ocean currents affect the climates of the lands near which they flow.
洋流影响其流经的附近地区的气候。
They explained the reason to us why they had hated us before.
他们向我们解释为什么他们不喜欢我们的原因。
非限定性定语从句
非限定性定语从句在形式上就与主句很松散，它与主句之间有一个逗点"，"隔开；它对其先行词没有限定、修饰的作用，只起补充、说明的作用。有时也用它来对全句进行补充、说明。即使将其去掉，也不会影响句子意思。由于上述原因，非限定性定语从句在表达意思方面也有别于限定性定语从句。另外，非限定性定语从句在中文译文里，我们往往将其作为一个分句处理，而不把它作定语翻译。
例如：Earlier , the Babylonians had attempted to map the world , but they presented it in the form of a flattened disc rather than a sphere , which was the form adopted by Ptolemy .
（此句中，非限定性定语从句是对先行词a sphere进行补充、说明。）
更早之前，巴比伦人曾试图绘制世界地图，但是他们把它绘制成平盘状而不是托勒密所采用的球体状。
The combination of satellites, which transmit information , computers , which store information , and television , which displays information , will change every home into an education and entertainment center .
（此句中，三个非限定性定语从句分别对三个先行词：satellites ，computers和television进行补充、说明。如果去掉这三个非限定性定语从句，那么句子可简化为：
The combination of satellites , computers and television will change every home into an education and entertainment center .）卫星能传输信息，计算机能储存信息，电视能显示信息，把这些手段结合起来可以使每个家庭都成为教育娱乐的中心。
The sun heats the earth , which makes it possible for plants to grow .（此句中，非限定性定语从句是对全句进行补充、说明,将全句表达的意思看成"一件事情）。太阳给予大地热，这就使植物的生长成为可能。
The old man has a son , who is in the army .（此句中，非限定性定语从句是对先行词son进行补充、说明。但本句所传达的信息是："这位老人只有一个儿子" 。如果将此句改写成限定性定语从句：
The old man has a son who is in the army . 那位老人有一个在部队工作的儿子。那么，限定性定语从句就要对先行词son进行限定、修饰。这样一来，句子所传达的信息就变成了："这位老人有一个儿子在部队工作，还有其他的儿子在干别的工作"。）那位老人有一个儿子，他在部队工作。
高中英语定语从句知识点总结
7-10 that,when,which,which
1-3 who,which, that
高中英语语法定语从句
定义：用来说明主句中某一名词或代词（有时也可说明整个主句或主句中一部分）而起定语作用的句子叫作定语从句。
一、关系带词引导的定语从句
1. 关系代词用来指代先行词是人或物的名词或代词
例1：This is the detective who came from London.
例2：The book which I am reading is written by Tomas Hardy.
2．关系代词的用法
(1) 如果先行词是all, much, anything, something, nothing, everything, little, none等不定代词，关系代词一般只用that，不用which。例如： Allthe people that are burst into tears.（所有人都迸出眼泪。）
(2) 如果先行词被形容词最高级以及first, last, any, only, few, most, no, some, very等词修饰，关系代词常用that,不用which, who，或whom。
(3) 非限制性定语从句中，不能用关系代词that,作宾语用的关系代词也不能省略。
There are about seven million people taking part in theelection, most of whom、arewell educated.
(4) which还有一种特殊用法，它可以引导从句修饰前面的整个主句，代替主句所表示的整体概念或部分概念。在这种从句中，which可以作主语，也可以作宾语或表语，多数情况下意思是与and this 相似，并可以指人。例如：
He succeeded in the competition, which made his parentsvery happy.
(5) that可指人或物，在从句中作表语，（指人作主语时多用who）仅用于限制性定语从句中。
(6) which可作表语，既可指人，以可指物。指人时，一般指从事某种职业或是有某种特征,品性或才能的人。Which引导的定语从句可以是限制性的，也可以是非限制性的。
(7) 如果作先作词的集体名词着眼于集体的整体，关系代词用which;若是指集体中的各个成员，则用who。
(8) 先行词有两个，一个指人，一个指物，关系代词应该用that。
(9) 如果先行词是anyone, anybody, everyone, everybody, someone, somebody,关系代词应该用 who 或whom，不用 which。例如：Is there anyone here who will go with you?（在这的所有人中谁和你一起去？）
3．“介词＋关系代词“是一个普遍使用的结构
(1) “介词＋关系代词“可以引导限制性定语从句，也可以引导非限制性定语从句。“介词＋关系代词“结构中的介词可以是 in, on, about, from, for, with,to at, of, without 等，关系代词只可用whom或 which,不可用 that 。
(2) from where为“介词＋关系副词“结构，但也可以引导定语从句。例如：
We stood at the top of the hill, from where we can seethe town.
(3) 像listento, look at, depend on, pay attention to, take care of等固定短语动词，在定语从句中一般不宜将介词与动词分开。例如：This is the boy whom she has taken care of. （这是她曾今照顾的孩子。）
二、关系副词引导的定语从句
1．关系副词也可以引导定语从句
关系副词在从句中分别表示时间,地点或原因。关系副词when在从句中充当时间状语，where 充当地点状语，why充当原因状语。
2. that可引导定语从句表示时间,地点或原因
That有时可以代替关系副词 when, where 或者why引导定语从句表示时间,地点或原因，在 that引导的这种定语从句中，that也可以省去。
三、限制性定语从句与非限制性定语从句
1．二者差异比较
限制定语从句紧跟先行词，引导词同先行词之间一般不加逗号，仅修饰先行词，可以由关系代词．关系副词或that来引导。非限制性定语从句仅作补充或说明，用逗号与主句隔开，既可修饰先行词，又可修饰整个主句，不可用that引导。
2．关系代词和关系副词的选择依据
(1) 弄清代替先行词的关系词在从句中作什么成分,作状语的应选用关系副词，作主语,宾语或表语的可选用关系代词。
3. 先行词与定语从句隔离
定语从句一般紧跟在先行词之后，但定语从句与先行词之间有时也会插入别的成分，构成先行词与定语从句的隔离。例如：
This is the article written by him that I spoke to youabout.
四、As在定语从句中的用法
1. 引导限制性定语从句和非限制性定语从句
（1）as多与such 或the same连用，可以代替先行词是人或物的名词。
（2）as 也可单独使用，引导非限制性定语从句，作用相当于which。例如：
The elephant’s nose is like a snake, as anybody can see.
(3）thesame… that与 the same …as在意思上是不同的。
2．As引导的非限制性定语从句的位置
as引导的非限制性定语从句位置较灵活，可以位于主句前面,中间或后面，一般用逗号与主句隔开，但which所引导的非限制性定语从句只能放在主句之后。例如：As is expected, the England team won the football match.
以上就是关于高中英语定语从句讲解,高中定语从句讲解教案的全部内容，以及高中英语定语从句讲解 的相关内容,希望能够帮到您。
