定语从句

英语中的定语从句用法定语从句是英语中非常重要的一种句子结构，它能够为主句提供更多的信息，使句子更加丰富和准确。

在学习和运用定语从句时，我们需要掌握一些基本的用法和注意事项。

一、定语从句的引导词定语从句通常由关系代词或关系副词引导。

关系代词包括that, which, who, whom, whose等，而关系副词则包括where, when, why等。

在选择引导词时，我们需要根据引导词在定语从句中的作用来决定。

1. 当引导词在定语从句中作主语时，我们可以使用关系代词who, which或that。

例如：The girl who is standing over there is my sister.（那个站在那边的女孩是我妹妹。

）2. 当引导词在定语从句中作宾语时，我们可以使用关系代词whom, which或that。

例如：I have a friend whom I can always rely on.（我有一个朋友，我总是可以依靠他。

）3. 当引导词在定语从句中作介词的宾语时，我们可以使用关系代词whom, which或关系副词where, when等。

例如：This is the hotel where we stayed last summer.（这是我们去年夏天住过的酒店。

）二、定语从句的位置定语从句可以出现在主句的前面或后面，具体位置取决于定语从句的内容和语境。

当定语从句的内容对于理解主句非常重要时，我们通常将其放在主句的后面。

例如：I bought a book that was recommended by my teacher.（我买了一本被我的老师推荐的书。

）另外，当定语从句的内容对于理解主句并不是非常重要时，我们通常将其放在主句的前面，并用逗号与主句隔开。

例如：The weather being fine, we decided to go for a picnic.（天气很好，我们决定去野餐。

I saw. 只能使用which的情况。 1、非限制性定语从句中。 eg. Mary has a book, which is very precious. 2、在介词之后。 eg. This is a house in which lives an old man. 3、当主句中的主语被that修饰时。 eg. That dog which I found in the street belongs to Mary.
5.当先行词同时包括人或物时。 eg. We often talk about the people and the things that we are interested in. 我们常常谈论我们感兴趣的人或事。 6.当主句是who或which时。 eg. Who is the girl that has black long hair? eg .Which is the pen that you bought?
I know the girl. 分解 The girl’s mother is a teacher.
作定语
that 可以作定语从句的主语和宾语.
注意: 关系代词作动词宾语时可
省略. The woman (whom/ that) they wanted to visit is a teacher.
The man who is speaking at the meeting is a farmer.
Mary is a girl. Mary has long hair.
合并为一个句子
Mary is a girl who has long hair.
Mary is a girl who has long hair.
• 关系副词when, where和关系代词that, which的区分。

Harry Porter is a boy who has magic power. where, when，why
先行词
which, who, whom, whose, that
关系词
关系代词
定语从句
关系副词
二、用法:
关系代词: 引导定语从句的关系代词
who whom whose
that
which
4. The gentleman ___ you told me
yesterday proved to be a thief.
A. who
B. about whom C. whom
5. The doctor ___ you are looking for is in
the room.
A. whom B. what
Beijing is the citwyheirne which I was born.
why
• why可用for +which 代替
1.This is the reason. 2.I was late for school wfohircht. his reason.
why
This is the reason for which I was late for school.
2. which, that 的用法
which 作定语从句的主语或宾语.
可省略
This is a truck which / that is made in
China.
作主语
I like the book (which / that) you bought yesterday作. 宾语
只能用that的情况

定语从句用什么引导定语从句用什么引导定语从句用引导？相信很多人都想知道吧？以下是店铺为您整理的定语从句用什么引导相关资料，欢迎阅读！定语从句用什么引导一、定语从句的引导词有关系代词who,whom,whose,which,that,as；关系副词when,where,why.定语从句中引导词的选用主要看先行词在定语从句中作什么成分或者是定语从句中缺什么成分.1．定语从句中缺主语,修饰人时用who ／that,修饰物时用which ／that引导.如：Is this the factory which ／that makes TV sets?The man who ／that visited our school is from Australia．2．从句中缺宾语,修饰人时用 who ／whom ／that或省略引导词；修饰物时用which ／that或省略引导词.如：Gone are the days which ／that we spent together in the village．He is the man who ／whom ／that I think to be worthy of our praise．3．从句中缺时间状语,用when或介词＋which引导.如：The day finally came when ／on which I was given a job．We'll put off the outing until next week,when we won't be so busy．4．从句中缺地点状语,用where或介词＋which引导.如：Please put the letter on the desk where ／on which he can easily find it．5．从句中缺原因状语或先行词是reason时,引导词用why ／for which ／ that.如：This is the reason why ／for which ／ that he didn't come tothe meeting．6．从句中缺定语,人和物都用 whose引导.如：A child whose parents are dead is called an orphan．Please pass me the dictionary whose cover is black．7．当先行词是way时,其定语从句的引导词用in which ／that.如：The way in which ／that he looks at problems is wrong．二、引导词as可引导限制性定语从句,也可引导非限制性定语从句.1．在固定词组the same．．．as,such．．．as中,as引导限制性定语从句.如：He is not such a fool as he looks．I've bought the same dress as she is wearing．2．当先行词是整个主句时,可用as ／which引导非限制性定语从句.引导词as和which的区别在于：①as引导的非限制性定语从句可放于主句前、主句中、主句后,而which引导的非限制性定语从句一般放于主句后或句中.②as常与从句中的know,see,hear,expect等动词连用,也常用于as often happens,as is often the case（常有的`事）等句子中；而which一般不用于以上情况.③as有“正如”的含义,which没有此含义.如：As is well known,Shanghai is a big city．Some of the roads were flooded,which made our journey more difficult．三、关系代词who,whom,whose,which和as能引导非限制性定语从句,而that不能；非限制性定语从句中即使缺宾语,引导词也不能省略；关系副词when,where能引导非限制性定语从句,而why不能.如：Abraham Lincoln,who led the United States through the Civil War years,was shot on April 14,1865．四、先行词是物时,其引导词可用 which也可用that,通常情况下二者可互换,但在有些情况下不能.1．用which不用that引导定语从句的三种情况：①非限制性定语从句用which,不用that引导.如：Football,which is a very interesting game,is played all over the world．②先行词为that时,为了避免重复,定语从句用which不用that引导.如：That which you borrowed from me wasn't a real diamond necklace．③介词后用which不用that引导.如：The method with which you solved the problem is very good．2．用that不用which的七种情况：①先行词前有形容词最高级或序数词修饰时,用 that不用which引导.如：This is the best place that I have ever visited．The second question that is asked is why we don't fall off the earth．②先行词为little,much,all,none,few,（the）one,something,everything,nothing,anything等不定代词时,用that 引导.如：There is nothing in the world that can frighten him．③先行词既有指人的名词又有指物的名词时,用 that引导.如：He told us about the people and the cities that he had visited．④先行词前有any,all,no,few,every,some,little,much,（the）very,（the）only,（the）last等词修饰时,用 that引导.如：This is the very coat that I need．Is oxygen the only gas that helps fire burn?⑤先行词为which时,为了避免重复,用that引导.如：Which is the book that you bought yesterday?⑥先行词在从句中作表语时,常用that引导.如：Shanghai is no longer the city that it used to be in the 1930's．⑦当主句是There be．．．句型时,用that引导.There are two tickets for the film that are for you two．五、在“one of＋复数名词＋定语从句”结构中,从句的谓语动词应与复数名词保持一致；当one前有the only修饰时,从句的谓语动词应与the only one保持一致.如：He was one of the students who were late for class．He was the only one of the students who was late for class．六、引导词前有介词或短语介词时,修饰人只能用 whom,修饰物只能用which引导.如：My glasses,without which I was like a blind man,fell to the ground and broke．The man,by whom the wolf was shot,is called Jackson．【定语从句用什么引导】。