① 英语语法定语从句
单纯的说定语从句的话
只要明确了什么是定语
而什么是句子便可以了
二者综合成为顾名思义的定语从句
值得一提的是
定语从句基本上充当的是名词或形容词性
自然在意义上也属于名词或形容词
祝学业有成！
② 求宾语从句，定语从句，状语从句简单易懂的讲解，有视频的更好
去网上搜索一本赖世雄的语法书吧，相信你会很有收获的。
③ 英语语法定语从句
1.定语从句的定义：用作定语的从句叫定语从句。
2.先行词：被定语从句所修饰的名词或代词。
3.定语从句的位置：紧跟先行词(名词或代词)之后。
4.引导词：引导定语从句的词(包括关系代词和关系副词)。
﹙1﹚关系代词：that/who/whom/which/as
﹙2﹚关系副词：when/where/why
5.引导词的位置：位于定语从句之前(先行词之后)。【as除外】
6.引导词的功能(作用)：
﹙1﹚连接先行词和定语从句。
﹙2﹚在定语从句中充当一定的成分(关系代词充当主语或宾语，关系副词充当状语)。
7.定语从句的类型：
﹙1﹚限定性定语从句(主句和定语从句之间无逗号)。
① 直接由引导词引导定语从句
The man who you’re talking to is my friend.
② 由介词+关系代词(whom/which)引导
The man to whom you’re talking is my friend.
I need a pen with which I can write a letter.
=I need a piece of paper on which I can write a letter.
介词的选用可根据从句中的相关词组确定，该介词通常可以放在关系代词之前，也可放在从句之尾。例如：
The man (who/whom/that) I talked about at the meeting is from Beijing University.
=The man about whom I talked at the meeting is from Beijing University.
The palace (which/that) I often pay a visit to was built in the 17th century.
=The palace to which I often pay a visit was built in the 17th century.
﹙2﹚非限定性定语从句(主句和定语从句之间用逗号隔开)。
① 直接由引导词引导定语从句。
② 由介词+关系代词(whom/which)引导。
I live in a house far away from the city， in front of which is a big tree.
There is an apple tree standing at the gate， on which are many apples.
This is the man to whom I gave the book.
③ 由“代词/名词+of+whom/which”或“of which/ whom +名词/代词”(先行词指
人用whom，指物用which)引导。One， some， any， none， all， both， several， many， most， neither， either等词、数词、分数或百分比与of whom或of which连用。
He has five children， two of whom are abroad.
(比较：He has five children， and two of them are abroad.)
We have three books， none of which is/are interesting.
(比较：We have three books， but none of them is/are interesting.)
除why和that不能引导非限定性定语从句外，其余引导词都可以，用法同限定性定语从句一样。但要注意以下区别。
1.在形式上非限定性定语从句与主句有逗号隔开。
2.非限定性定语从句的作用：它只是补充说明先行词的情况，翻译时可译成两个句子。
The engineer， whose leg was badly hurt， was quickly sent to hospital.
(那位工程师被很快送往医院，其腿部受了重伤)
The engineer whose leg was badly hurt was quickly sent to hospital.
(那位腿部受了重伤的工程师被很快送往医院)
3.在非限定性定语从句中，任何引导词都不能省略(包括引导词在此定语从句中充当宾语在内)。指人做主语时只能用who， 做宾语时用whom；
指物做主语，宾语都用which； 关系副词用when或where，也不能省略。
④ 谁有新东方老师或者其他老师讲解的定语从句视频，麻烦传给我，谢谢~多多益善。其他语法的也可以。
http://v.youku.com/v_show/id_XNDY5ODc3MTky.html?x
采纳我吧！找起来内不容容易！
⑤ 英语语法定语从句
因为我们不说on the year
⑥ 求：高中英语语法（限制性从句，定语从句等）讲解视频的资源
你好。定语从句：
http://.ku6.com/watch/08212796362722571065.html?page=videoMultiNeed
限制性从句与非限制性从句：
http://.ku6.com/watch/04632040470664403659.html?page=videoMultiNeed
限制性定语从句复习：
http://.ku6.com/watch/08178944955748598141.html?page=videoMultiNeed
⑦ 英语语法讲解复合句
复合句指的是含有两个或更多的主谓结构的句子，其中有一个（或更多）主谓结构充当句子的某一（些）成分，如主语、宾语、表语、定语、状语、同位语等。主语从句、宾语从句、表语从句、同位语从句、定语从句和状语从句都属于复合句。
一、状语从句：
状语从句 Adverbial Clause，从句用作状语称为状语从句。根据用途，状语从句可分为时间、地点、原因、条件、方式、让步、结果、目的等状语从句。
I. 时间状语从句
时间状语从句表示时间，常用的关联词有when, until, as, after, before, once, since, as long as, whenever等等。
例: 1) When you cross a main road, you must be careful.
2) He went out to play football after he had finished his homework.
3) Wait until you are called.
4) I can't recognize you. You are so changed since last we met.
5) He didn't go to school until he was eleven.
You can use my house as long as you are careful.
He is so terrible once he is drunk.
I listen to the radio while I walk every evening.
II. 地点状语从句
地点状语从句表示地点，常用的关联词有where, wherever, anywhere等。
例如：1) Put it where you found it.
2) Sit down wherever you like.
3) Anywhere she goes, he goes too.
III. 原因状语从句
原因状语从句表示原因或理由，常用的关联词有because, as, since, in case等。
1) I eat ice-cream so much because I like sweet food.
2) As I didn't know the way, I asked a policeman.
3) Since you won't help me, I'll ask someone else.
I'll take my raincoat in case it rains. (in case it rains = because it may rain)我将带上雨衣，以防下雨。
IV. 条件状语从句
条件状语从句表示真实的或现实的条件，引导从句所用的关联词有if, unless, suppose, in case(that), in the event (that), as (so) long as等等。
1) If it snows tomorrow, we will build a snowman.
You'll be late, unless you hurry.
3) Suppose we are late, what will he say? (suppose从句必须放在主句之前) 我们如果迟到了，他会说什么？
4) In the event that our team wins, there will be a party.
5) In case it rains, do not expect me. 如果下雨，就不要等我了。
6) He will do anything as(so) long as it is interesting. 只要好玩，他什么都愿意做。
V. 方式状语从句
方式状语从句表示动作的方式，回答How的问题，常用关联词as, as if, as though, the way(that), in the way(that)等引导，一般置于主语之后。
Do as I say. I did just as you told me. 照我说的去做。我就是照你说的去做的。
He acts as if/as though he is the owner. 他行为举止好象是这儿的主人似的。
They did it in a way that I had never seen before. 他们以我从没见过的方式行事。
I was never allowed to sing the way I wanted to. 我从未被允许用自己想用的方式唱歌。
VI. 让步状语从句
让步状语从句表示“虽然、尽管、即使”等概念，使句子具有对比的因素。常用的关联词有although, though, even if, even though, not that(=although…not)等，置于主语之前或后。
1) Although you feel very ill right now, this is still a common disease.
2) Though he has lived for years in London, he writes in French.
3) We intend to go U.S., even if air fares are expensive.
4) Even though fruits are good, you can't live with fruits only.
5) I'm OK now, not that I slept (although I did not sleep) very well last night.
VII. 结果状语从句
结果状语从句表示结果， 常由连词so…that, such(a/an)…that, so that, such that等引导，置于主语之后。
She was so frightened about the dog that she cried.
The news worried him so much that he didn't sleep at all for the whole night.
He is such a wonderful joker that you can't help laughing.
They are such wonderful players that no one can beat them.
We arrived early, so that we got good seats.
The weather was such that I couldn't go out.
VIII. 目的状语从句
目的状语从句表示目的，回答what for或 for what purpose的问题，常用关联词so that, in order that等引导，一般置于主语之后。目的状语从句中的谓语动词常由“情态动词+动词原形”构成。
Ships carry lifeboats so that people can escape if the ship sinks.
They wrote the notice in several languages so that foreigners could understand it.
We carved their names on the stone in order that people should always remember them.
They risk their lives so that/in order that they may support their kids.
二、定语从句
定语从句（Attributive Clauses）在句中做定语，修饰一个名词或代词，被修饰的名词,词组或代词即先行词。定语从句通常出现在先行词之后，由关系词（关系代词或关系副词）引出。
关系代词有：who, whom, whose, that, which等。
关系副词有：when, where, why等
1. 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, whom, that 这些词代替的先行词是人的名词或代词，在从句中所起作用如下：
Is he the man who/that wants to see you?
他就是你想见的人吗？（who/that在从句中作主语）
He is the man whom/ that I saw yesterday.
他就是我昨天见的那个人。（whom/that在从句中作宾语）
2) Whose 用来指人或物，(只用作定语, 若指物，它还可以同of which互换），例如：
They rushed over to help the man whose car had broken down.
那人车坏了，大家都跑过去帮忙。
Please pass me the book whose (of which) cover is green.
请递给我那本绿皮的书。
3） which, that 它们所代替的先行词是事物的名词或代词，在从句中可作主语、宾语等，例如： A prosperity which / that had never been seen before appears in the countryside.
农村出现了前所未有的繁荣。（which / that在句中作宾语）
The package (which / that) you are carrying is about to come unwrapped.
你拿的包快散了。(which / that在句中作宾语)
2. 关系副词引导的定语从句
关系副词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。
1）when, where, why 关系副词when, where, why的含义相当于"介词+ which"结构，因此常常和"介词+ which"结构交替使用.例如：
There are occasions when (on which) one must yield. 任何人都有不得不屈服的时候。 Beijing is the place where (in which) I was born. 北京是我的出生地。
Is this the reason why (for which) he refused our offer?
这就是他拒绝我们帮助他的理由吗？
2）that代替关系副词that可以用于表示时间、地点、方式、理由的名词后取代when, where, why和"介词+ which"引导的定语从句，在口语中that常被省略.例如：
His father died the year (that / when / in which) he was born.
他父亲在他出生那年逝世了。
He is unlikely to find the place (that / where / in which) he lived forty years ago.
他不大可能找到他四十年前居住过的地方
3. 判断关系代词与关系副词
方法一： 用关系代词，还是关系副词完全取决于从句中的谓语动词。及物动词后面无宾语，就必须要求用关系代词；而不及物动词则要求用关系副词。例如：
This is the mountain village where I stayed last year.
I'll never forget the days when I worked together with you.
习惯上总把表地点或时间的名词与关系副词 where, when联系在一起。
方法二： 准确判断先行词在定语从句中的成分(主、谓、宾、定、状)，也能正确选择出关系代词/关系副词。
4. 限制性和非限制性定语从句
1) 定语从句有限制性和非限制性两种。限制性定语从句是先行词不可缺少的部分，去掉它主句意思往往不明确；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，例如：
This is the house which we bought last month.
这是我们上个月买的那幢房子。（限制性）
The house, which we bought last month, is very nice.
这幢房子很漂亮，是我们上个月买的。（非限制性）
2) 当先行词是专有名词或物主代词和指示代词所修饰时，其后的定语从句通常是非限制性的，例如： Charles Smith, who was my former teacher, retired last year.
查理·史密斯去年退休了，他曾经是我的老师。
My house, which I bought last year, has got a lovely garden.
我去年买的的那幢房子带着个漂亮的花园。
This novel, which I have read three times, is very touching.
这本小说很动人，我已经读了三遍。
3) 非限制性定语从句还能将整个主句作为先行词, 对其进行修饰, 这时从句谓语动词要用第三人称单数，例如：
He seems not to have grasped what I meant, which greatly upsets me.
他似乎没抓住我的意思，这使我心烦。
Liquid water changes to vapor, which is called evaporation.
液态水变为蒸汽，这就叫做蒸发。
说明：关系代词that和关系副词why不能引导非限制性定语从句。
5. 介词+关系词
1）介词后面的关系词不能省略。
2）that前不能有介词。
3） 某些在从句中充当时间，地点或原因状语的"介词+关系词"结构可以同关系副词when 和where 互换。
This is the house in which I lived two years ago.
This is the house where I lived two years ago.
Do you remember the day on which you joined our club?
Do you remember the day when you joined our club?
6. as, which 非限定性定语从句
由as, which 引导的非限定性定语从句，as和which可代整个主句，相当于and this或and that。As一般放在句首，which在句中。
as 和which在引导非限制性定语从句时，这两个关系代词都指主句所表达的整个意思，且在定语从句中都可以作主语和宾语。但不同之处主要有两点：
(1） as 引导的定语从句可置于句首，而which不可。
(2） as 代表前面的整个主句并在从句中作主语时，从句中的谓语必须是系动词；若为行为动词，则从句中的关系代词只能用which。
7. 先行词和关系词二合一
1)Whoever spits in public will be punished here. (Whoever 可以用 anyone who 代替)
2)The parents will use what they have to send their son to technical school. (what 可以用all that代替)
8. what/whatever;that/what; who/whoever
1）what = the thing which；whatever = anything
2) who= the person that whoever= anyone who
3) that 和 what
当that引导定语从句时 ，通常用作关系代词，而引导名词性从句时，是个不充当任何成分的连接词。宾语从句和表语从句中的that常可省略。What只能引导名词性从句， 用作连接代词，作从句的具体成分，且不能省略。
9. 关系代词that 的用法
1）不用that的情况
a) 在引导非限定性定语从句时。
b) 介词后不能用。
2) 只能用that作为定语从句的关系代词的情况
a) 在there be 句型中，只用that，不用which。
b) 在不定代词，如：anything, nothing, the one, all, much, few, any, little等作先行词时，只用that，不用which。
c) 先行词有the only, the very修饰时，只用that。
d) 先行词为序数词、数词、形容词最高级时，只用that。
e) 先行词既有人，又有物时,只用that。
三、名词性从句：
在句子中充当主语、宾语、表语与同位语的句子分别叫做主语从句、宾语从句、表语从句和同位语从句， 这些统称为名词性从句。
（一）主语从句
在复合句中用作主语的从句叫主语从句。
A 为了强调主语从句的内容，可将从句置于句首
B 大部分主语从句都可以用it作形式主语
为了保持句子平衡，主语从句常用it作形式主语，将主语从句后置。用it作形式主语的主语从句结构有如下几种：
1、It is + 名词 + that从句
2、It is + 形容词 + that从句
3、It + 动词 + that从句
4、It is + 过去分词 + that从句
用形式主语it引导的主语从句相当多，有些已形成固定的语法和译法。常见的有：
It is said that... 据说……
It is reported that... 据报导……
It is well known that... 众所周知……
It is announced that... 据宣布……
It is believed that... 人们相信……
It is thought that... 人们认为……
It is understood that... 自不待言……
It must be pointed out that... 必须指出……
It must be admitted that... 必须承认……
（二）宾语从句
宾语从句 The Object Clause，在复合句中作主句的宾语，它属于名词性从句。它可以作主句谓语动词的宾语，也可以作介词的宾语。宾语从句以从句的句式来决定连接词。
宾语从句有四步曲
连接词： （也叫引导词）
语序： 从句的词序用陈述语序（主+ 谓）
时态： 主句的时态如果是过去时，从句的时态应以过去时为基础作相应的变化。
人称： 要根据句中的意义作相应的变化
连接词（引导词）
从属连词 that ，if ，whether
连接代词 who， whom， whose， which， what
连接副词 when ，where ，how ，why
1.如果陈述句作从句，连接词用that,在口语和非正式语体中常可省略that 。
2.特殊疑问句作从句，就用原来的特殊疑问词
3.一般疑问句作从句，连词用if或whether 在选择疑问句只用whether，记住这一结构：whether … or not 。
（三）表语从句
表语从句放在连系动词之后，充当复合句中的表语。
A 可接表语从句的连系动词
可接表语从句的连系动词有be, look, seem, sound, appear等。
B as, as if / though引导的表语从句
C because, why引导的表语从句
what引导的主语从句表示结果或名词reason作主语时，后面的表语从句表示原因时要用that引导，不宜用because。
D 使用虚拟语气的表语从句
在表示建议、劝告、命令含义的名词后的表语从句，谓语动词需用"should+动词原形"表示，should可省略。常见的词有：advice, suggestion, order, proposal, plan, idea等。
（四）同位语从句
同位语从句用于对前面的名词作进一步解释，说明名词的具体内容。同位语从句一般由that引导，但也可以由whether以及连接代词和连接副词引导。
A 同位语从句一般跟在名词的后面
同位语从句一般跟在名词fact, hope, idea, news, doubt, suggestion, information, opinion, decision, discovery, truth, promise, statement, problem, rule等后面。
B 使用虚拟语气的同位语从句
在一些表示“建议、命令、要求”的名词后的同位语从句中，谓语动词用"should + 动词原形"，should可省略。
⑧ 英语定语从句，语法
定语从句中，连接先行词和定语的叫关系代词或关系副词。有一些情况下，关系代词可以省略：
1、当关系代词所代替的先行词在定语从句中做宾语，关系词可以省略。Whoistheman(that/who/whom)youweretalkingto? 刚才和你讲话的人是谁？
2、当关系代词that在定语从句中用作表语时，可以省略。
Chinaisnotthecountry(that)itwas. 中国已不是过去的中国了。
3、关系副词when用于day,year,time少数词后时可以省略（也可换成that）Thatwastheyear(that)Ifirstwentabroad. 就是那一年我第一次出国。
4、关系副词where用于place, somewhere, anywhere, everywhere, nowhere少数词后时可以省略(也可换成that)。
Thisistheplace(where)theymetyesterday. 这就是他们昨天碰头的地方。
5、当关系代词that在定语从句中用作宾语补足时，可以省略。
I’mnotthemadman(that)youthoughtme. 我并不是你所认为的那个疯子。
6、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，这些连接词都可以省略。
That’s the reason (why, for which, that) he came. 这就是他来的原因。
Give me one reason (why) we should help you. 给我举出一个我们应当帮助你的理由。
如有疑问，请追问，满意，请采纳，谢谢。
⑨ 请问能不能推荐一下专门讲英语的定语从句，状语从句等语法的书初中的。
推荐华东师范大学出版的《英语思维：解密英语语法的原理》这本书，该书是国内内第一本系统讲解英容语语法原理和思维内涵的书，是第一本从语言原理层面完整系统的呈现英语语法全貌和完整框架体系的书。该书从语言思维的层面对定语从句、名词从句、状语从句进行了讲解，简单明了，直触本质。
也可以学习同名视频课程，学习的更加快速轻松，会让小孩对英语的认识脱胎换骨，对初高中学习如虎添翼。
⑩ 知识讲解：2016考研英语语法指导——考研英语定语从句详解
定语从句
一、【知识网络】
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、关系代词引导的定语从句
1. 关系代词用来指代先行词是人或物的名词或代词
句子成分 用于限制从句或非限制性从句 只用于限制性从句
代替人 代替物代替人或物
主语 Who which that
主语 Whomwhich that
宾语 Whose（=of whom） whose（=of which）
This is the detective who came from London. The book which I am reading is written by Tomas Hardy.
The desk whose leg is broken is very old. This is the room that Shakespeare was born in.
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：
All the people that are present burst into tears.
（2）如果先等词被形容词最高级以及first，last，any，only，few，mush，no，some，very等词修饰，关系代词常用that，不用which，who，或whom.例如：
（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。例如：
There are about seven million people taking part in the election，most of whom、are well ecated.
（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 parents very 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种特征。品性或才能的人。Which引导的定语从句可以限制性的，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.例如：
The boy and the dog that are in the picture are very lovely.
（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？
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 see the town…
（3）像listen to，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.
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，同先行词这间一般不加逗号，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：
1）This is the article written by him that Is poke to you about……
2）He was the only person in this country who was invited
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）the same--- 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：
（1）As is expected，the England team won the football match.
（2）The earth runs around the sun，as is known by everyone.
3.as, which的比较
1).在非限制性定语从句中，均可替代整个主句或句中某个部分，在从句中作主语，宾语，表语．如从句在主句之后，两者皆可用
They failed in the exam, as/which is natural.
She seems a scientist, as/which in fact she is.
Grammar is not a set of dead rules, which/as I have said before.
2).如从句在主句之前，用as
As we all know, his parents were killed in this war.
As is known to all, the earth travels around the sun.
3).如关系代词代表主句全句意思，有“正如．．．”“就象．．．”之意时，用as
We won the match, as we had expected. He agreed to the plan, as was to be expected.
4). 当先行项被the same, such, so修饰时，用as
This is the same book as you bought yesterday.同类书 (比较：This is the
same book that you bought yesterday.同一本书)
Don’t believe in such men as praise you to your face.
I never give my students so difficult a question as no one can work out.
5). 当从句内容对主句内容起消极作用，则用which
The young man cheated his friend out of much money, which was disgraced.
6). as 也可以用来引导非限制性定语从句， 用来指待一件事，这时它的位置可以放在句首、句中和句尾。
He is an American, as/which we know from his accent. As we know from his accent, he is an American.
He, as we know from his accent, is an American. As has been said above, grammar is not a set of dead rules.
Grammar, as has been said above, is not a set of rules.
Grammar is not a set of dead rules, as/which has been said above.
正如: As everyone knows, as you may still remember, as you said, as I
can see, as has been mentioned above, as you may have heard, and etc.
【主要考点】
考点一:that 与which 的区别
只用that的情况:
1. 先行词为all, little, much, everything, nothing, something, anything等不定代词
2.先行词被all, little, much, every, no, 等修饰时。
3.先行词被序数词或最高级修饰先行词前有序数词(the first),形容词最高级(the best), the
Last，the very, the only 等时。
4. 先行词为人和物的组合
5.若主句中有疑问代词 who 或者 which，为了避免重复, 关系代词不要再用 who, which，而用 that。
只用which的情况:
1,逗号后面 2,介词后面
考点二:介词+关系代词
提醒: 介词﹢关系代词引导的定语从句, 关键是判断介词的选择.
方法一:根据从句中动词与先行词习惯搭配 方法二:根据从句中动词与先行词的逻辑关系
注意：关系代词在定语从句中作介词宾语时，从句常常由“介词+关系代词”引出。此时关
系代词只能用which 或 whom; 不可用that 或who 代替，但遇固定词组时，介词一般紧跟词组主体，不作前置 ，Is this the book (which/that) you are looking for ?
考点三 Whose 用法及转换形式
1. whose引导定语从句，其后应紧跟名词，构成名词短语。
That’s the child whose father is a teacher
2.whose引导定语从句，其先行词不仅可以指人，还可以指物。
Do you know the woman whose husband is a doctor? This is a book whose cover is green.
3. whose的先行词指物时, 可用of which代替, 但词序不同，
即whose+名词=the +n + of which
=of which + the + n.
He lives in the room whose window faces south.
= He lives in the room, the window of which faces south.
= He lives in the room, of which the window faces south
考点四：as与which引导的定语从句
两者均可引导非限制性定语从句，有时可以互换，但下列情况多用as。
1. 当与such或as 连用时，一般用as。
2. as 引导的从句可以放在句首, as 本身有“正如…..正象…”之意，与之连用的词有 know, see, expect, announce, point out 等。e.g. As we all know, the earth is round.
考点五: that 与who的区别
在anyone, those, he/she/I / they作先行词时, 用”who” 代替 “that”.
Anyone _____breaks the law is punished. Those _____ break the law are punished.
He _____ breaks the law is punished.
考点六:如何判断用关系副词还是关系代词?
I will never forget the day when I first went to school. I will never forget the day that we spent in Beijing.
The house which we visited is being repaired now. The house where Luxun once lived is being repaired now.
考点七:定语从句中主谓一致问题
定语从句中的动词在人称和数方面应该与它的先行词保持一致。
1.I am not one who __is____afraid of difficulty． 2.Don‘t choose me, who ____am___not fit for this job．
考点八：以抽象地点(mark, situation, case, point, scene, business，occasion等)作先行词的定语从句中关系词一般用where，occasion作先行词时也可以用when.