定语从句中关系代词和关系副词的区别

简单的来说关系代词就是指代个人,物之类的,
人的时候：whose,who,whom,that,
物的时候：which,that
关系副词就是：介词+which,when,where,why,that,指代地点啊时间啊或者原因啊
最简单的方法就是：删掉关系副词,从句还是完整的,语法正确的.如：
There
are occasions when (on which) one must yield.任何人都有不得不屈服的时候.
one must
yield.人必须屈服
Beijing is the place where (in which) I was born.北京是我的出生地.
I
was born我出生鸟

he refused our offer
他拒绝我们的帮助了
但是关系代词就不可以啦,因为它指代的是一个很实际的东西嘛.不可或缺!缺了的话从句肯定不完整有错误.
Is he the man
who/that wants to see you?
wants to see you 这是没主语的句子哦

定语从句中which和that的用法区别
在定语从句中，关系代词 which 和 that
都可指物，一般情况下，可以互换使用。但在下列情况下值得注意：
　　■只能用that而不能用which的情形
　　(1) 当先行词为：all,
little, few, much, none 及 some-, any-, no-, every- 与 thing
所组成的复合单词时，只能用that。如：
　　There is nothing that will stop us making progress.
没有事情会阻止我们进步。
　　(2) 当先行词前面有only, some, any, no, every, little, few, much, all,
very等形容词修饰时，只能用that。如：
　　This is the only problem that we can't work out.
这是我们不能解决的唯一的一个问题。
　　(3) 当先行词由形容词的最高级或序数词修饰时，只能用that。如：
　　This is the most
interesting book that I have ever read. 这是我读过的最有趣的书。
　　(4)
当先行词同时包括人和物时，只能用that。如：
　　Luxun and his works that we are familiar with are
considered great. 人们认为我们所熟识的鲁迅及其作品都很伟大。
　　(5)
当先行词在定语从句中作表语时，只能用that。如：
　　This is a book that I have been looking for since
last week. 这就是那本自上周以来我一直在寻找的书。
　　(6) 当主句是以 which 开头的特殊疑问句时，只能用
that。如：
　　Which is the picture that you drew yesterday?
你昨天画的那张画是哪一张？
　　■只能用which而不能用that的情形
　　(1) 当非限制性定语从句中的先行词指物时，只能用
which。如：
　　The pencil-case, which I bought last week, is missing.
那个铅笔盒，我上周买的，现在不见了。
　　(2) 关系代词前面有介词时，只能用which。如：
　　The tree under which we
used to take a rest has been cut down. 我们过去常在下面休息的那棵树已砍掉了。
　　(3) 先行词为代词 that
或 that 所修饰时，只能用 which。如：
　　I don't take that which is too expensive.
我不要太贵的那一个。

定语从句中THAT的用法
注意在以下8种情况下,指物时用that 不用which
1.先行词是all, any, everything, anything, nothing ,something, much, little, few, none ,the one 等时① There is much that should be used.

② You can take any seat that is free.
2.先行词被all, any , no, only, little, much, very, every, some, few, none 等修饰时① I have read all the books (that) you gave me.

② Every dictionary that our library bought is good.
3. 当先行词前有形容词的最高级修饰时① This is the most interesting book that I have ever read.
4. 先行词前有序数词修饰时,包括 the last.① The first lesson that I learned will never be forgotten.

② The Great Wall is the last place that Mr. Smith is going to visit before he leaves Beijing.

5. 在以 which, who作主语的特殊疑问句中的定语从句中① Who is the man that is reading a book there?

② Which is the magazine that you borrowed from the reading room?
6.当先行词既有表示人又有表示物的词时① We talked of the things and persons that we remembered.

7. 当先行词在定语从句中做表语时,无论先行词是人还是物① China is no longer the country that she was.

8.主句以there be 开头时① There is little that I can do to make up for the lost time.

关系代词和关系副词的区别\x0d\x0a1、关系代词（that, who, whom, whose, which）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。\x0d\x0a例1. Is he the man who/that wants to see you?（who / that在从句中作主语，指人）\x0d\x0a例2. He is the man whom/ that I saw yesterday.（whom / that在从句中作宾语，指人）\x0d\x0a例3. They rushed over to help the man whose car had broken down.（whose在句中作定语，指人）\x0d\x0a例4. Please pass me the book whose (of which) cover is green.（whose在句中作定语，指物。若指物，它还可以同of which互换）\x0d\x0a例5. 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carry的宾语，指物）\x0d\x0a2、关系副词（when, where, why, that）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。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。\x0d\x0a例6. Beijing is the place where (in which) I was born.　\x0d\x0a例7. Is this the reason why (for which) he refused our offer?　\x0d\x0a例8. His father died the year (that / when / in which) he was born.　\x0d\x0a例9. He can’t find the place (that / where / in which) he lived forty years ago.