在定语从句中as可以做主语吗?

在定语从句中as可以做主语吗?
在定语从句中as可以做主语吗?

在定语从句中as可以做主语吗?
当然可以,你只需记住：as和 which除了这几点,用法完全一样
1,as 能放在定语从句句首
2.as和固定用法搭配：as you know.

可以。例如：such students as love their books are good pupils。

as 并不是定语从句中的引导词，下面是我给学生上定语从句用的资料，你可以看一下，不会的可以问我
定语从句
定语是指在句子中用来修饰名词、代词的成分
如：I will give my teacher a bunch of beautiful flower. (中beautiful就是定语)
定语从句是指在一个句子中作定语的句子，定语从句要放在所修饰的词后
如：...

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as 并不是定语从句中的引导词，下面是我给学生上定语从句用的资料，你可以看一下，不会的可以问我
定语从句
定语是指在句子中用来修饰名词、代词的成分
如：I will give my teacher a bunch of beautiful flower. (中beautiful就是定语)
定语从句是指在一个句子中作定语的句子，定语从句要放在所修饰的词后
如：I have met the doctor who is in the No.1 hospital.
定语从句的连接词：
连接代词：who、which、whom、whose、that
连接副词：when、where、why
一. 定语从句的功用和结构
在复合句中，修饰某一名词或代词的从句叫做定语从句。被定从句修饰的词叫做先行词。定语从句必须放在先行词之后。引导定语从句的关联词有关系代词和关系副词。例如：
This is the present that he gave me for my birthday. Do you know everybody who came to the party?
I still remember the night when I first came to the village? This is the place where Chairman Mao once lived.
关系代词和关系副词的功用
关系代词和关系副词用来引导定于从句，在先行词和定语从句之间起纽带作用，使二者联系起来。关系代词和关系副词又在定语从句中充当一个成分。关系待客做主语，宾语，定语，关系副词可作状语。
作主语：关系代词在定语从句中作主语时，从句的谓语动词的人称和数须和先行词一致。例如：
I don’t like people who talk much but do little. The cars which are produced in Hubei Province sell very well.
2. 作宾语：
She is the person that I met at the school gate yesterday. The book that my grandmother gave me is called “The Great Escape”.
3. 作定语
关系代词whose在定语从句中作定语用。例如：
What’s the name of the young man whose sister is a doctor? The girl whose father is a teacher studies very hard.
4. 作状语
I’ll never forget the day when I first came to Beijing. This is the house where I was born.
各个关系代词和关系副词的具体用法
1． who 指人，在定语从句中作主语。例如：
The person who broke the window must pay for it. The boy who is wearing the black jacket is very clever.
2. whom指人，在定语从句中作宾语。例如：
Do you know the young man (whom) we met at the gate？ Mr Lee (whom) you want to see has come.
3. whose 指人，在定语从句中作定语。例如：
The girl whose mother is ill is staying at home today. I know the boy whose father is a professor.
4. which指物，在定语从中作主语或宾语。例如：
A dictionary is a book which gives the meaning of words. Here is the book (which) the teacher mentioned yesterday.
5．that多指物，有时也指人，在定语从句中作主语或宾语。例如：
I’ve read the newspaper that(which) carries the important news. Who is the person that is reading the newspaper over there?
6. when 指时间，在定语从句中作状语。例如：
I’ll never forget the time when we worked on the farm. He arrived in Beijing on the day when I left.
7. where 指地点，在定语从句中作状语。例如：
This is the house where we lived last year. The factory where his father works is in the east of the city
四. 关系代词 whom， which 在定语从句中作介词宾语时，可以和介词一起放于先行词与定语从句之间，有时为了关系紧凑也可以将 whom 与 which 与先行词紧挨着书写，而将介词置于定语从句的后面，如：
That was the room in which we had lived for ten years. = That was the room which we had lived in for ten years.
五. 具体使用时还要注意下列问题：
1． 只能使用that,不用which 的情况：
(1) 先行词是all, few, little, nothing, everything, anything 等不定代词时。例如： All that he said is true.
(2) 先行词被only, no, any, all,等词修饰时。例如： He is the only foreigner that has been to that place.
(3) 先行词是序数词或被序数词修饰的词。例如： He was the second (person) that told me the secret.
(4) 先行词是形容词最高级或被形容词最高级修饰的词。 This is the best book (that) I have read this year.
(5) 先行词既包括人又包括物时。例如： He talked about the people and the things he remembered.

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as引导非限定性定语从句，但是有时候不加逗号。所以不太好认。像是我们经常说的as we know ，……
the same ……as
such……as
……such as 就是as引导的非限定从
我最近才学的，现学现卖啊……