第1个回答 2016-05-20
在定语从句中，关系代词who 和that都可指人和物，在一般情况下，可以互换使用，但在下列情况下值得注意，之间的区别：
一、用who 而不用that的情形
1.在非限制性定语从句中的先行词指人时，只能用who 。
例：My sister, who is studying abroad, sent me a beautiful present just before this
Christmas.
我姐姐，她在国外学习，就在圣诞节前给我寄来了漂亮的礼物。
2.当定语从句对指人的先行词进行隔位修饰时，只能用who。
例：Do you know the girl in front of the blackboard who is speaking to the
students?
你认识黑板前面正在给学生们讲话的那位女孩子吗？
3.当先行词为people和those时，只能用who.
例：Those who want to go there come here please.
那些想去那儿的人请来这边。
4.当先行词为one, ones, anyone, everyone, none, all(指人) 时，只能用who。
例：Anyone who is against us is our enemy.
任何反对我们的人就是我们的敌人。
5. 先行词指人，而关系代词在从句中作主语时，一般多用who。
例：The man who came here yesterday said he would come again in a few days.
昨天来这儿的那个人说过几天他会再来。
6. 在there be句型中名词的定语从句多用who 。
例：There are students in our class who / whom you have met.
我们班有些学生你见过。
7.当句子中有两个指人的现行词分别带有两个定语从句时，若一个定语从句的引导词为that, 那么，另一个定语从句的引导词必定为who。
例：The boy that you met just now is Li Ming’s brother who just graduated from a
university.
刚才你会到的那个男孩是李明的刚从大学毕业的弟弟。
二、用that 而不用who的情形
1.当先行词前面有形容词的最高级或序数词修饰时，引导词只能用that。
例：The tallest player that plays football for our team is from Shandong.
在为我们队踢足球的最高哪个运动员来自山东。
2.当先行词前面有only, some, any, no, every, little, few, much, all,
very形容词修饰时，引导词只能用that。
例：He is the only student that said “no” to the teacher.
他是唯一的一个对老师说“不”的学生
3.当主句是以who开头的特殊疑问句时，引导词只能用that。
例：Who is woman that you talked with just now?
刚才跟你谈话的那位妇女是谁？
4.当先行词是一个既指人又指物的并列词组时。
例:I made a speech on the men and things that I had seen abroad.
我就我在国外所见到的人和事作了报告。
5.当关系代词在定语从句中作表语时(可省略).
例：Tom is not the boy (that) he was.
汤姆这孩子已不是以前那个样子了。本回答被网友采纳
第2个回答 2018-03-31
两者均可指人，有时可互换（包括当先行词为 all, anyone, someone等，同时也包括先行词受the only等的修饰时）：
All that [who] heard him were delighted. 所有听了他讲话的人都很高兴。
He is the only one among us that [who] knows Russian.他是我们中间唯一懂俄语的人。
2. 但是在下列情况，通常要用 that：
①当先行词是一个既指人又指物的并列词组时：
I made a speech on the men and things that I had seen abroad. 我就我在国外所见到的人和事作了报告。
②当先行词是who时(为避免重复)：
Who was it that won the World Cup in 1982? 谁赢得了1982年的世界杯？
③当关系代词在定语从句中作表语时(可省略)：
Tom is not the boy (that) he was. 汤姆这孩子已不是以前那个样子了。
3.但是在下列情况，通常要用 who
当先行词为 those 且指人时，英语习惯上要用 who 来引导定语从句。如：
Those who do not wish to go need not go. 不愿去的人不需要去。
Those who couldn’t walk were carried on stretchers. 那些不能走的人都用担架抬着。
It is said that those who eat the most are the least healthy. 据说吃得最多的人身体最差。
注：偶尔也可见到在 who 之后用 that 引导定语从句的用例，但相当少见。如：
The danger is that people who pay their bills on time will be lumped in
with those that don’t. 危险的是那些及时付账的人将会同那些不及时付账的人混在一起。
定语从句，一个简单句跟在一名词或代词后（先行词）进行修饰限定，就叫做定语从句。在主句中充当定语成分。[1] 被修饰的词叫先行词。定语从句不同于单词作定语的情况，它通常只能放在被修饰的词（即先行词）之后。
定语 从句由关系词（关系代词、关系副词）引导，关系代词、关系副词位于定语从句句首。
定语从句公式：定语从句=先行词+关系词+从句
本回答被网友采纳
第3个回答 2016-05-24
定语从句中that与who的用法区别:
1. 两者均可指人，有时可互换（包括当先行词为 all, anyone, someone等，同时也包括先行词受the only等的修饰时）：
All that [who] heard him were delighted. 所有听了他讲话的人都很高兴。
He is the only one among us that [who] knows Russian.他是我们中间唯一懂俄语的人。
Anyone who [that] is over sixteen is allowed in. 任何超过十六岁的人都允许进去。
2. 但是在下列情况，通常要用 that：
①当先行词是一个既指人又指物的并列词组时：
I made a speech on the men and things that I had seen abroad. 我就我在国外所见到的人和事作了报告。
②当先行词是who时(为避免重复)：
Who was it that won the World Cup in 1982? 谁赢得了1982年的世界杯？
③当关系代词在定语从句中作表语时(可省略)：
Tom is not the boy (that) he was. 汤姆这孩子已不是以前那个样子了。
3. 但是在下列情况，通常要用 who：
当先行词为 those 且指人时，英语习惯上要用 who 来引导定语从句。如： Those who do not wish to go need not go. 不愿去的人不需要去。
Those who couldn’t walk were carried on stretchers. 那些不能走的人都用担架抬着。
It is said that those who eat the most are the least healthy. 据说吃得最多的人身体最差。
Only those who had booked in advance were allowed in. 只有那些预先订票的人可以进去。
注：
偶尔也可见到在 who 之后用 that 引导定语从句的用例，但相当少见。如：
The danger is that people who pay their bills on time will be lumped in with those that don’t. 危险的是那些及时付账的人将会同那些不及时付账的人混在一起。
第4个回答 2016-04-17
定语从句who (whom) 和that的用法区别
在定语从句中，关系代词who (whom)
和that都可指人和物，在一般情况下，可以互换使用，但在下列情况下值得注意：
一、用who (whom) 而不用that的情形
(1)
在非限制性定语从句中的先行词指人时，只能用who(whom)。如：
My best friend, who is studying in Australia , sent mea
beautiful present just before this Christmas. 。
(2) 当定语从句对指人的先行词进行隔位修饰时，只能用who (whom)。如：
Do
you know the man under the tree who is speaking to the students?
(3) 当先行词为people和those时，只能用who(whom)。如：
Those who
want to go to climb the hill , come here please.
(4) 当先行词为one, ones,anyone,
everyone, none, all(指人) 时，只能用who (whom)。如：
Anyone who is against us is our
enemy. 任何反对我们的人就是我们的敌人。
(5) 先行词指人，而关系代词在从句中作主语时，一般多用who。如：
The man who
came here yesterday said hewould come again in a few days.
昨天来这儿的那个人说过几天他会再来。
(6) 在there be句型中名词的定语从句多用who(whom)。如：
There are
students in our class who / whomyou have met. 我们班有些学生你见过。
(7)
当句子中有两个指人的现行词分别带有两个定语从句时，若一个定语从句的引导词为that, 那么，另一个定语从句的引导词必定为who。如：
The woman that you met just now is Li Ming’s aunt who just graduated from a university.
二、用that 而不用who (whom)的情形
(1)
当先行词前面有形容词的最高级或序数词修饰时，引导词只能用that。如：
The best player that plays football
for our team is from Beijing.
(2) 当先行词前面有only,
some,any, no, every, little, few, much, all, very形容词修饰时，引导词只能用that。如：
He is
the only student that said “no” to the teacher.
(3)
当主句是以who开头的特殊疑问句时，引导词只能用that。如：
Who is woman that you talked with just
now