英语先行词？先行词是被定语从句所修饰的名词、代词，在主句中充当一定的部分，没有固定的词语。例如：This is the book which I am looking for.它是我正在寻找的书。在这里“the book”就是先行词。其中定语从句分为限定性定语从句和非限定性定语从句。限定性定语从句，用来修饰和限定先行词，那么，英语先行词？一起来了解一下吧。
我这可以自己总结的，有知识产权的啊
1.
先行词前面有all, much few, any, little, no, one of, every,等词修饰时
There's no difficulty THAT we can't overcome.
I've read all the books THAT can be borrowed here.
2.
当先行词是不定代词，如all, much, few, little, none, the one ,everything, anything, nothing,these, those(指代物)等
All THAT can be done has been done.
I didn't want this recorder; I want the one THAT was borrowed yesterday.
3.
先行词被序数弯悄词first, last, next等或形容词的最高级修饰时，或先行词是基数\序数时
This is the first letter THAT I've written in English.
She is the most careful girl THAT I've ever known.
Now you can see the two THAT are still alive.
The train is the last that will go to Beijing.
4.
当主句是以who, which或what开埋袜渣头的特殊疑问句时
Who is the man THAT is waiting at the school gate?
Which is the car THAT ran over a dog yesterday?
What did you see THAT made you so angry?
5.
当先行词是系动词be后面表语而且关系词本身是从句的表语时
Shanghai isn't the city THAT it used to be 60 years ago.
He is no longer the man THAT he used to be.
6.
当主句以There be…结构开头时，或关系代词在there be…结构中作实义主语，先行项为物
There is a seat in the corner THAT is still free.
There are two books on history THAT are for you.
The 9.15 is the fastest train THAT there has ever been.
7.
当先行词好源既有人又有物时
They talked about the people and places THAT they
had visited./were entertaining.
8.
先行词前面有the only, the very
This is the very man THAT I want to see.
巧计：不定 序数 最高级，疑问 表语 there be，指人指物和唯一，需用that要牢记
先行词是定语从句的引导词前面的名词.在定语从句中充当一定的成分.
被定语从句修饰的名词、代词称为先行词。
我们可以这样认为, 之所以称它为先行词, 是因为修饰它的定语从句总是放在它之后, 先行词总是出现在定语从句之前, 而不同于普通形容词修饰名词时, 形容词位于名词之前。
This is the book which I am looking for.中的book是先行词,which是引导词.
He is Mr. Robertson who comes from England. 中的Mr. Robertson.是先行词,who是引导词.
简单的说，就是和修饰宾语的词或从句，词就是先行词
一、先行词与关系词
A．什么是先行词
被定语从句修饰的名词、代词称为先行词。我们可以这样认为, 之所以称它为先行词, 是因为修饰它的定语从句总是放在它之后, 先行词总是出现在定语从句之前, 而不同于普通形容词修饰名词时, 形容词位于名词之前。
Don’t forget the book that I told you to bring. （the book为先行词） 别忘了把我让你带的书带过来。
B．先行词与关系词的关系
引导定语从句的词被称为关系词。
什么是先行词？
先行词是定语从句中先行词定语从句所修饰、限定的词。作定语的句子紧跟在它所修饰的先行词之后，与先行词有着紧密的联系。先行词通常由关系代词（who，whom，whose，that，which，as）和关系副词（where，when，why，how）来引导。这些关系词在从句中承担一定的语法功能，但本身没有实际意义。
在初中阶段的英语学习中，我们主要理解who，that，which这几个关系代词所引导的定语从句。
1. who作为关系代词，在从句中作主语，其先行词是指人的名词或代词。例如：
- Find the boy who is wearing a red shirt.（找出穿红衬衫的那个男孩。）
先行词是the boy。
2. that作为关系代词，在从句中可以作主语、宾语或表语。当它在从句中作宾语时，可以省略。that的先行词可以是指物的名词或代词，也可以是指人的名词或代词。例如：
- She told her mother all that had happened.（她把所发生的事情都告诉了她的母亲。）
先行词是all，that在从句中作主语。
- I'll buy you the bike (that) you saw in the shop yesterday.（我要给你买昨天你在商店里看到的那辆自行车。
先行词是在定语从句中,被定语从句所修饰的名词。
1、例如:He is a teacher who teach our English.
在这里定词从句who teach our English是来修饰前面的名词teacher，所以teacher就是一个先行词。
2、例句：He is Mr. Robertson who comes from England.
他是来自英国的罗伯森先生。
其中的“Mr. Robertson”是先行词，“who”是引导词。
扩展资料：
用法：
1、先行词指人时，引导词可用Who,Whom,及that,其中当引导词在句中作主语时用Who或that；当其充当宾语时用whom或that，在非正式宾语中也可用who，也可省略。
That boy who/that broke the window is called Tom.
打破窗户的那个男孩叫汤姆。
2、先行词指物时，引导词用that或which
They planted the trees which didn’t need much water.
他们种了不需要太多水的树。
3、先行词指地点时，引导词用Where或in which
This is the house where/in which we lived last year.
这是我们去年住的房子。
①.先行词是定语从句的引导词前面的被定语从句所修饰的名词、代词.在定语从句中充当一定的成分. 我们可以这样认为, 之所以称它为先行词, 是因为修饰它的定语从句总是放在它之后, 先行词总是出现在定语从句之前, 而不州渗同于普通形容词修饰名词时, 形容词位于名词之前。
被定语从句修饰的名词、代词称为先行词。我们可以这样认为, 之所以称它为先行词, 是因为修饰它的定语从句总是放在它之后, 先行词总是出现在定语从句之前, 而不同于普通形容词修饰名词时, 形容词位于名词之前。
例句:This is the book which I am looking for.中的book是先行词,which是引导词.
He is Mr. Robertson who comes from England. 中的Mr. Robertson.是先行词,who是引导词. 简单的说，就是和修饰宾语的词或从句，词就是先行词
Don’t forget the book that I told you to bring. （the book为先行词） 别忘了把我让你带的书带过来。
②.连词是用来连接词与词、词组与词组或句子与句子、表示某种逻辑关系的虚词。
以上就是英语先行词的全部内容，先行词是定语从句中先行词定语从句所修饰、限定的词。作定语的句子紧跟在它所修饰的先行词之后，与先行词有着紧密的联系。先行词通常由关系代词（who，whom，whose，that，which，as）和关系副词（where，when，why，how）来引导。这些关系词在从句中承担一定的语法功能，但本身没有实际意义。
