定语从句中什么时候用that 不用which,什么时候相反

定语从句中什么时候用that 不用which,什么时候相反
定语从句中什么时候用that 不用which,什么时候相反

定语从句中什么时候用that 不用which,什么时候相反
一.用that不用which
1）先行词是最高级或他前面有形容词最高级时
This is the best --that-- has been used against air pollution in cities.
English is the most difficult subject --that-- you will learn during these days.
2)先行词是序数词或它前面有一个序数词时
He is the last person --that-- i want to see.
3)主句中有疑问句
Which is the pen --that-- you lost?
4)先行词既有人又有物时
The bike and its rider --that-- had run over an old man were taken to the police station.
5)先行词是 all, much, little ,something,everything,anything,nothing,the one时
6）先行词前有 only,any,few,little,no ,all,one of,the same, the very等词装饰时
7）有2个定语从句,其中一个关系代词已用which,另一个应用that.
Tom built up a factory which produced things that had never been seen before.
二.用which不用that：关系代词前有介词
This is the school in --which-- you will study.
.原句本来就有that
Let me show you the book --that-- i borrowed from the library --which-- was newly open.
哎,没分的,打那么辛苦白干了...T-T

在非限定性定语从句中，不能用that，而用who, whom代表人，用which代表事物.
非限定性定语从句：非限定性定语从句的作用是对所修饰的成分作进一步说明，通常和主句间用逗号隔开，将从句拿掉后其他部分仍可成立
先行词指物时引导词用that而不用which的情况:
1、先行词有序数词或形容词最高级修饰时，
This is the best composit...

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在非限定性定语从句中，不能用that，而用who, whom代表人，用which代表事物.
非限定性定语从句：非限定性定语从句的作用是对所修饰的成分作进一步说明，通常和主句间用逗号隔开，将从句拿掉后其他部分仍可成立
先行词指物时引导词用that而不用which的情况:
1、先行词有序数词或形容词最高级修饰时，
This is the best composition that has been written in English.
2、先行词是all,something,anything,nothing,everything,little,few,much等不定代词时
There is nothing/little/much that we can do for her.
3、先行词被all,every,no,some,any,little,much等修饰时
I’ve read all the books that you gave me.
4、先行词被the only/very等修饰时
This is the very/last place that they visited yesterday.
5、有两个以上先行词，分别表示人或物时
They talked about the teachers and the schools that they had visited.
6、先行词为基数时
Yesterday I caught two fish,Now you can see the two that are still alive in a basin of water.

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which, that 区别如下。as I had expected是作状语
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.（which / that在句中作宾语）
The packa...

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which, that 区别如下。as I had expected是作状语
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.（which / that在句中作宾语）
The package (which / that) you are carrying is about to come unwrapped. (which / that在句中作宾语)
关系代词that和which 都可以指物，that 和Who 都可以指人，其用法区别：
1）不用that的情况
a) 在引导非限定性定语从句时
(错) The tree, that is four hundred years old, is very famous here.
b) 介词后不能用
We depend on the land from which we get our food.
c)多用who 的情况
①关系代词在从句中做主语
A friend who helps you in time of need is a real friend .
②先行词为those , people 时
Those who were either fools or unfit for their offices could not see the cloth .
③先行词为all, anyone , ones , one 指人时
One who doesn’t work hard will never succeed in his work .
④在There be句型中
There is a stranger who wants to see you .
⑤在被分隔的定语从句中
A new teacher will come tomorrow who will teach you German .
⑥在有两个定语从句的句子中，其一用who,其二用that,但若先行词后接两个以上的并列定语从句时，后一个必须重复前一个关系代词。
The student who was praised at the meeting is the monitor that is very modest and studies very hard .
There is a teacher who is always ready to help others and who enjoys what he does .
2) 只能用that作为定语从句的关系代词的情况
a) 在不定代词，如：anything, nothing, everything, all, much, few, any, little等作先行词时，只用that，不用which。
All that is needed is a supply of oil.
Finally, the thief handed everything that he had stolen to the police.
b) 先行词有the only, the very, the just修饰时，只用that。
He is the very man that helped the girl out of the water .
c) 先行词为序数词(the last)、数词、形容词最高级时，只用that。.
The first English book that I read was “The Prince and the Pauper” by Mark Twin .
d) 先行词既有人，又有物时。
He talked about the teachers and schools that he visited .
e)当主句是以who 或which 开始的特殊疑问句时，用that 以避免重复。
Who is the person that is standing at the gate .
f)关系代词在从句中做表语
He is not the man that he used to be .

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