同位语从句用法详解(例句丰富)
一、同位语从句的引导词
引导同位语从句的词语通常有连词that，whether，连接代词和连接副词等。
1. 由that引导
We heard the news that our team had won. 我们听到消息说我们队赢了。
They were worried over the fact that you were sick. 他们为你生病发愁。
The news that we are having a holiday tomorrow is not true. 明天放假的消息不实。
I’ve come to the conclusion that it was unwise to do that.我得出结论这样做是不明智的。
The fact that the money has gone does not mean it was stolen.
那笔钱不见了这一事实并不意味着是被偷了。
He referred to Copernicus’ statement that the earth moves round the sun.
他提到了哥白尼关于地球绕太阳转的说法。
【注意1】在某些名词(如demand, wish, suggestion, resolution等)后面的同位语从句要用虚拟语气。如：
They were faced with the demand that this tax be abolished.
他们面对废除这个税的要求。
They expressed the wish that she accept the award. 他们表示希望她接受这笔奖金。
There was a suggestion that Brown should be dropped from the team.
有一项建议是布朗应该离队。
The suggestion that the new rule be adopted came from the chairman.
采纳新规则的建议是主席提出的。
The resolution that women be allowed to join the society was carried.
允许妇女参加这个协会的决议通过了。
I can understand their eagerness that you should be the main speaker.
我理解他们希望你作主要发言人的殷切心情。
【注意2】引导同位语从句的连词that通常不省略，但在非正式文体中也可以省去。如：He grabbed his suitcase and gave the impression he was boarding the Tokyo plane. 他拿起了手提箱，给人的印象是他要登上飞往东京的飞机了。
2. 由whether引导
There is some doubt whether he will come. 他是否会来还不一定。
Answer my question whether you are coming. 你回答我的问题：你来不来。
The question whether it is right or wrong depends on the result.
这个是对还是错要看结果。
We are not investigating the question whether he is trustworthy.
我们不是在调查他是否可以信任的问题。
【注意】whether 可引导同位语从句，但if不能引导同位语从句。
3. 由连接代词引导
Have you any idea what time it starts? 你知道什么时候开始吗?
From 1985-90 I was an instructor at the regional party headquarters. After that I went back to work in a factory. Then I had no idea what a casino was. 从1985年到1990年我是地方党部的教员。随后我回到一家工厂工作。当时我不知道赌场是什么样的地方。
4. 由连接副词引导
I have no idea when he will come back. 我不知道他什么时候回来。
It is a question how he did it. 那是一个他如何做的问题。
He had no idea why she left. 他不知道她为什么离开。
You have no idea how worried I was! 你不知道我多着急!
二、关于分离同位语从句
有时同位语从句可以和同位的名词分开。如：
The story goes that he beats his wife. 传说他打老婆。
The news got about that he had won a car in the lottery. 消息传开说他中彩得了一辆汽车。
The rumour spread that a new school would be built here. 谣传这里要盖一所新学校。
Report has it that the Smiths are leaving town. 有传言说史密斯一家要离开这座城市。
The thought came to him that maybe the enemy had fled the city. 他想到可能敌人已逃离这座城市。
The order soon came that all citizens should evacuate the village. 不久命令下来，所有居民都必须撤出村子。(G31)
二、同位语从句与定语从句的区别
和都放在被修饰词的后边，而且都是用于修饰和说明前面的先行词，无论从形式上和作用上来看，它们都非常相似。实际上，二者是很容易区别开来的，最主要是抓住以下几点：1．意义的不同
同位语从句是用于说明所修饰名词的具体内容的，它与被修饰词语通常可以划等号；而定语从句是限制所修饰名词的，它的作用是将所修饰的名词与其他类似的东西区别开来（从语义角度看，与先行词之间存在的是同位或等同的关系，而与先行词之间存在的是所属关系，表示“……的”，起修饰限定作用。）：
We are glad at the news that he will come. 听到他要来这个消息我们很高兴。(news的内容就是that he will come，故that引导的是同位语从句)
We are glad at the news that he told us. 听到他告诉我们的这个消息我们很高兴。(that 从句是限制the news的内容的，即我们高兴只是因为他告诉的这个news而不是其他的news，故that从句为定语从句)
例如：
同位语从句：The news that she had passed the exam made her parents very happy.
她考试及格的消息使她父母很高兴。（that之后是news的具体内容）
定语从句：The news that he told us interested all of us.他告诉我们的消息使大家都感兴趣。（that之后是对news的解释）
2.引导词的不同
what, how, if, whatever 等可引导名词性从句，但不引导定语从句。
从引导词与先行词的关系区分同位语从句与定语从句
who, which, what, when, why, how, where等词都可以用来引导同位语从句，但它们的用法和用作关系代词或时引导定语从句的用法不同：引导同位语从句的是对先行词的具体内容进行进一步的解释说明，与先行词不存在指代关系；而引导定语从句的关系代词或不但在从句中充当成分，而且与其修饰的先行词指代的是同一个人或者事物。
例如：
同位语从句：He has solved the problem why the radio was out of order.他解决了收音机为何出故障的问题。(why引导的是同位语从句)
定语从句：The reason why he was late for class is quite clear.他上课迟到的原因显而易
3.引导词的功能上的不同
that引导同位语从句时，它不充当句子成分，而引导定语从句时，它作为关系代词，要么充当定语从句的主语，要么充当定语从句的宾语。如上例 that he told us中的that就充当told 的宾语。
从语法角度来看，引导同位语从句的that是连词，只起语法作用，用来连接同位语从句，在从句中不充当任何成分；而引导定语从句的that是，它除了起引导从句的语法作用之外，还要在从句中充当主要是作主语或宾语。
例如：
同位语从句：The fact that he succeeded in the experiment pleased everybody．他实验成功这个事实使我们大家很高兴。（that只起连接作用）
定语从句：The fact that (which) we talked about is very important．我们所谈论的那个事实很重要。（that在从句中作about的宾语）
4.被修饰词语的区别
同位语从句所修饰的名词比较有限，通常有hope, wish, idea, news, fact, promise, opinion, suggestion, truth等，而定语从句所修饰的名词则非常广泛。另外，when和where 引导定语从句时，通常只修饰表示时间和地点的名词，而它们引导同位语从句时却不一定；又如why引导定语从句，它通常只修饰名词the reason，而它引导同位语从句时则不一定：
I have no idea when they will come. 我不知道他们什么时候来。(同位语从句)
I’ll never forget the days when I lived there..
我永远不会忘记我住在那儿的日子。(定语从句)
We don’t understand the problem why this is the best choice.
我们不明白这个问题，为什么这是最好的选择。(同位语从句 )
The reason why he didn’t come to the meeting is that he is ill.
他未能来开会，原因是他生病了。(定语从句)
例如：
同位语从句：There is no doubt that the price of wheat will go up.毫无疑问，小麦的价格将
会上涨。(doubt为)
定语从句：Those who were against the plan raised their hands.那些反对这个计划的人举起了手。(Those为代词)
5.从that可否省略区分同位语从句与定语从句
例如：
同位语从句：We heard the news that our volleyball team had won the match.我们听说了我们排球队获胜的消息。（that不可省略）
定语从句：This is the very book (that) I’m looking for.这正是我要找的那本书。（that作for 的宾语，可以省略）
（补充：1、从句所修饰词的不同。同位语从句所修饰词通常是少数一些表示抽象意义的名词，如belief , doubt , fact , hope 等。定语从句的先行词可以指人、物等。例如：
He has told us a fact that drinking too much does harm to our health.他又告诉我们一个事实，过渡饮酒对健康有害。(同位语从句)
This is the book that I bought yesterday. 这是我昨天买的那本书。（定语从句）
2. 连接词的作用不同。连接同位语从句的that只起连接作用，不在从句中担任任何。whether 和how 可以引导同位语从句，但不能引导定语从句。引导定语从句的连接词是关系词，常见的关系代词和有that , which , who , whose , whom , when , where , why , as，than, but 等。
The news that he wants to get is whether he will be sent to the countryside.他所想得到的消息是他是否将被派往农村。(定语从句，关系代词that作从句get的宾语。)
Do you have a doubt whether she will be dismissed from school? 你怀疑她是否能被学校开除吗？(同位语从句)
3.从句作用的不同。定语从句具有形容词或副词的特点，对先行词起修饰、限定作用，描述先行词的性质或特征，与先行词之间是所属关系。同位语从句具有名词的特点，对中心词作进一步补充解释，是中心词的具体内容。例如：
The man that you saw just now is my bother. 你刚才看到的那个人是我的弟弟。(定语从句) The suggestion that the meeting be put off proved right.推迟会议的建议证明是正确得。（同位语从句）
同位语从句中连接词that在从句中不作，也没有词汇含义，只起连接作用，其作用大致相当于一个冒号；而引导定语从句的that是关系代词，且在句中充当句子的成分。
具体区别如下：
例子：
Word came that he had been abroad.（同位语从句）
这个消息传来，他在国外。
Our team has won the game, which made us very happy.（定语从句）
队伍的取得胜利使我们高兴。
例子：
The news that our team has won the game was true. （同位语从句）
我们队赢了那场比赛的消息是真的。
The news that he told me yesterday was true.（定语从句）
昨天他告诉我的那个消息是真的。
等不能用引导定语从句，但可用于引导同位从句。
例子：
That question whether we need it has not been considered.（同位语从句）
我们是否需要它这个问题还没有考虑。
The order that we received yesterday was that we should send a few people to help the other groups.（定语从句）
我们应派几个人去帮别的几个小组的命令昨天收到了。
例子：
The news that got around the town made people happy.（定语从句）
我们的队赢了,这让我们很高兴
The news that he came back made people happy.(同位语从句）
他回来的消息让人们感到很高兴。
例子：
At the first day, I booked a kind of magazine that Tom had recommended to me.（定语从句）在第一天，我在读汤姆推荐我的杂志。
The fact can`t be accepted by the fans that we lost the swimming game .（同位语从句）
因为他放不下架子，所以我们输了游泳比赛。）
同位语从句讲解与练习 1定义：用作同位语的从句叫做同位语从句，用以解释说明某一名词内容和实质的从句。 2.连接词：that, whether, why, who, where, how, when等。引导同位语从句时一般都不省略。if一般不引导同位语从句that, whether不作成分，whether表示“是否” E.g. They were all very much worried over the fact that you were sick.对你生病这件事，他们很焦虑。 Where did you get the idea that I could not come?你在哪儿听说我不能来？ I have no idea whether he’ll come or not.我不知道他是否来。 连接代词who, which, what和连接副词where,when, why, how亦可引导同位语从句，在句中作成分。 E.g. The question who should do the work requires consideration.谁该干这项工作，这个问题需要考虑。 We haven’t yet settled the question where we are going to spend our summer vacation.到哪儿去度暑假，这个问题我们还没有决定。 It is a question how he did it.那是一个他如何做了此事的问题。 3.可跟同位语从句的名词或短语 不是所有的名词都可以跟同位语从句，常可以被同位语从句修饰的名词有： belief doubt explanation hope idea news opinion possibility statement thought wish truth fact question promise problem reply report suggestion advice fear warning understanding feeling rumor certainty probability on condition on the understanding with the exception in spite of the fact E.g. Daniel will be allowed to make a trip to China on condition that he gets an A in all his school subjects. 4同位语从句与定语从句的区别 1）that引导的同位语从句与定语从句之区别 句法功能上 that引导的同位语从句that只起连接从句的作用，无意义。在从句中不充当句子成分。不可省。 that引导的定语从句that替代先行词在从句中不仅起连接作用，还充当一个句子成分。如在从句中作动词的宾语时可省略。 意义上 同位语从句是被修饰名词的内容。定语从句起限定作用，是定语。 如： The news that Mr. Li will be our new English teacher is true. (同位语从句，that不可省) 李先生将是我们的新英语老师这个消息是真的。 The news (that) he told me yesterday is true. (定语从句，that在从句中作的宾语，可省)他昨天告诉我的消息是真的。 2）wh-类词引导的两种从句的区别 who, whom, whose, when, where, why 引导定语从句，它们分别指前面先行词所表示的人、物、时间、地点、原因，否则为同位语从句。在同位语从句中，wh-类词表示疑问。
英语定语从句用法详解 在复合句中，修饰名词或代词的从句叫定语从句，被修饰的名词或代词叫先行词，引导定语从句的有关系代词who, whom, whose, which, that等和关系副词where, when, why等，关系代词和关系副词在定语从句中担任句子成份。 1.由who引导的定语从句中，who用作主语，如：This is the boy who often helps me. 2.由whom引导的定语从句中，whom用作宾语，如：The man whom you are waiting for has gone home. 3.由whose引导的定语从句中，whose用作定语，如：Do you know the girl whose skirt is white? 4.由which引导的定语从句中，which用作主语或谓语动词的宾语或介词的宾语，如： The room in which there is a machine is a work shop. The river which is in front of my house is very clean. This is the pen which you want. 注意： (1)whom, which用作介词宾语时，介词可放在whom、which之前，也可放在从句原来的位置上；但在含有介词的动词固定词组中，介词只能放在原来的位置上。如：He is the very person whom we must take good care of. (2)引导非限制性定语从句时，必须用关系代词which，不用that,如：I have lost my bag, which I like very much. (3)关系代词在句中作主语时，从句的谓语动词的人称和数必须和先行词保持一致。 5.由that引导的定语从句中，that可以指人或物，在从句中作主语或谓语动词的宾语，但不能放在介词后面作介词宾语，如： The book that I bought yesterday was written by Lu Xun. 注意在下面几种情况下必须用that引导定语从句。 (1)先行词是不定代词all, few, little, much, something, nothing, anything等，如： All that we have to do is to practise English. (2)先行词被序数词或形容词最高级所修饰，如 The first letter that I got from him will be kept. (3)先行词被all, any, every, each, few, little, no, some等修饰，如 I've eaten up all the food that you gave me. (4)先行词被the only, the very, the same, the last修饰时如 He is the only person that I want to talk with. (5)先行词既有人又有物时，如: They talked about persons and things that they met. (6)当句中已有who时，为避免重复，如：Who is the man that is giving us the class? 6.由when, where, why引导的定语从句，如: I don't know the reason why he was late. This is the place where we have lived for 5 years. I'll never forget the day when I met Mr Li for the first time. 注意：先行词是表示地点时，如果从句的谓语动词是及物的，就用that(which)，如果从句的谓语动词是不及物的，就用where引导。This is the house Which /that he has lived in for 15 years.(Where he has lived for 15 year.)
初中英语定语从句讲解及练习(教师版) 一.定语从句及相关术语 1.定语从句：修饰一个名词或代词的从句称为定语从句，一般紧跟在它所修饰的先行词后面。 2.关系词：引导定语从句的关联词成为关系词 关系词有关系代词和关系副词。关系代词有that, which, who, whom, whose, as 等； 关系副词有where, when, why等。 关系词常有3个作用：1，引导定语从句。2，代替先行词。3，在定语从句中担当一个成分。 二.关系代词引导的定语从句 1.who指人，在从句中做主语 (1) the boys who are playing football are from class one. (2) yesterday i helped an old man who lost his way. 2. whom指人，在定语从句中充当宾语，常可省略。 (1) mr. liu is the person (whom) you talked about on the bus. (2) mr. ling is just the boy whom i want to see. 注意：关系代词whom在口语和非正式语体中常用who代替，可省略。 (3) the man who/whom you met just now is my friend. 3. which指物，在定语从句中做主语或者宾语，做宾语时可省略 (1) football is a game which is liked by most boys. (2) this is the pen (which) he bought yesterday. 4. that指人时，相当于who 或者whom；指物时，相当于which。在宾语从句中做主语或者宾语，做宾语时可省略。 (5) the number of the people that/who come to visit the city each year rises one million. (6) where is the man that/whom i saw this morning? 5. whose通常指人，也可指物，在定语从句中做定语 (1) he has a friend whose father is a doctor. (2) i once lived in a house whose roof has fallen in. whose指物时，常用以下结构来代替 (3) the classroom whose door is broken will soon be repaired. (4) the classroom the door of which is broken will soon be repaired. (5) do you like the book whose cover is yellow? (6) do you like the book the color of which is yellow? 三.介词+关系代词引导的定语从句 关系代词在定语从句中做介词宾语时，从句常由介词+关系代词引导 (1) the school (that/which) he once studied in is very famous. (2) the school in which he once studied is very famous. (3) tomorrow i will bring here a magazine (that/which) you asked for. (4) tomorrow i will bring here a magazine for which you asked. (5) we'll go to hear the famous singer (whom/that/who) we have often talked about. (6) we'll go to hear the famous singer about whom we have often talked. 注意：1. 含有介词的动词短语一般不拆开使用，如：look for, look after, take care
教案7.21 定语从句详细讲解 一、定义及相关术语 1．定语从句：修饰某一名词或代词的从句叫定语从句。定语从句一般紧跟在它所修饰的先行词之后。 2．先行词：被定语从句修饰的词叫先行词。 3．关系词：引导定语从句的词叫关系词。 关系词有关系代词和关系副词。关系代词有that, which, who, whom, whose, as等；关系副词有when, where, why等。关系词通常有下列三个作用： A.引导定语从句； B.代替先行词； C.在定语从句中担当一个成分。 The man who is shaking hands with my father is a policeman. 该句中，who is shaking hands with my father 是定语从句，修饰先行词the man，“who”是引导定语从句的关系词，代替先行词the man，在定语从句中作主语。 二、关系代词引导的定语从句 1．who指人，在定语从句中作主语。 The boys who are playing football are from Class One. 正在踢足球的男孩是一班的。Those who want to go to the museum must be at the school gate at 7 tomorrow morning. 想去博物馆的人必须在明晨7点到大门口集合。 Yesterday I helped an old man who had lost his way. 昨天我帮助了一位迷路的老人。That is the teacher who teaches us physics. 那就是教我们物理的老师。2．whom 指人，在定语从句中作宾语，常可省略。 Mr Liu is the person ( whom ) you talked about on the bus. 先生就是你们在公共汽车上谈论的那个人。 Li Ming is just the boy ( whom ) I want to see. 明正是我想要见的男孩。 The professor ( whom ) you are waiting for has come. 你正在等的教授已经来了。 The girl ( whom ) the teacher often praises is our monitor. 老师经常表扬的那个女孩是我们的班长。 注意：关系代词whom 在口语或非正式文体中常可用who 来代替，也可省略。 The man ( whom / who )you met just now is my old friend.
定语从句和同位语从句的区别 一、定语从句是形容词从句，其作用相当于一个形容词，是用来修饰前面的名词或代词的；同位语从句是名词从句，其作用相当于一个名词，是对前面的名词作进一步解释的。例如： 1．We heard the news that he had told her. 我们听到他对她说的消息。 2．We heard the news that he had won the game. 我们听到消息他赢得了比赛。 例1中的that从句的作用相当于一个形容词，其作用是修饰the news；例2中的that从句的作用相当于一个名词，是对the news的进一步说明。 二、定语从句的引导词在从句中充当一定的成分，可作主语、宾语、状语等；而同位语从句中的引导词在从句只起连接作用，不作任何句子成分。例如： 1. A plane is a machine that can fly. 飞机是一种能飞的机器。 2. The fact that they didn't finish the work has to be faced. 必须面对事实，他们没有完成工作。 例1中的引导词that在从句中充当句子成分，作从句的主语，故为定语从句；例2中的that只起连接作用，引导从句解释fact的内容，不作任何句子成分，故为同位语从句。 引导从句的关联词that的功能不同：that引导同位语从句时是一个纯连词，不充当任何成分；而引导定语从句的that是关系代词，既指代先行词又须在从句中充当成分。 三、引导定语从句的关联词在从句中作宾语或状语时，可以省略或被其他词代替；而同位语从句的引导词一般不能省略，更不能被代替。例如： 1. The news that she heard is true. 她听到的消息是真的。 2. The news that she will go abroad is true. 她将出国这消息是真的。 例1是定语从句，that可省略；例2是同位语从句，that不能省略。 3. The reason why he was chosen remains unknown. 他为什么被选上的原因还是不清楚。 4. The idea why he was chosen attracted our attention. 他为什么会被选上，这一想法引起我们的注意。
同位语从句与定语从句的三点区别 同位语从句与定语从句很相似,但还就是有区别的,区别主要在以下三方面: 1、从词类上区别 同位语从句前面的名词只能就是idea,fact,news,hope,belief,suggestion,proposal,word,thought,doubt,truth,possibilit y,promise,order等有一定内涵的名词,而定语从句的先行词可以就是名词、代词、主句的一部分或就是整个主句。如: The possibility that the majority of the labour force will work at home is often discussed、人们经常讨论大多数劳动力将会在家里工作的可能性(同位语从句) We are not looking into the question whether he is worth trusting、我们正在调查的问题不就是她就是否值得信赖的问题(同位语从句) Word came that he had been abroad、据说她已经出国了(同位语从句) Our team has won the game, which made us very happy、我们的队赢了,这让我们很高兴(定语从句) The doctor whom you are looking for is in the room、您找的那位医生在房间里面(定语从句) His mother did all she could to help him with his study、她妈妈尽她的最大努力帮助她的学习(定语从句,代词all作先行词?) 2、从性质上区别 定语从句就是从句对其先行词的修饰或限制,属于形容词性从句的范畴;而同位语从句就是从句对前面抽象名词的进一步的说明与解释,属于名词性从句的范畴如:
高中英语定语从句讲解及练习 定语从句是高中重点知识，也是高考常考点，大家也不容易掌握，这篇文章主要教你关系代词引导的定语从句 关系副词引导的定语从句判断关系代词与关系副词限制性和非限制性定语从句等内容，有例题讲解定语从句在句中做定语，修饰一个名词或代词，被修饰的名词词组或代词即先行词。定语从句通常出现在先行词之后，由关系词（关系代词或关系副词）引出。 关系代词有：who, whom, whose, that, which等。 关系副词有：when, where, why等。 18.1 关系代词引导的定语从句 关系代词所代替的先行词是人或物的名词或代词，并在句中充当主语、宾语、定语等成分。关系代词在定语从句中作主语时，从句谓语动词的人称和数要和先行词保持一致。 1）who, whom, that 这些词代替的先行词是人的名词或代词，在从句中作主语和宾语。例如： Is he the man who/that wants to see you? 他就是你想见的人吗？（who/that在从句中作主语） He is the man whom/ that I saw yesterday. 他就是我昨天见的那个人。（whom/that在从句中作宾语） 2）whose 用来指人或物，（只用作定语, 若指物，它还可以同of which互换）。例如： They rushed over to help the man whose car had broken down.那人车坏了，大家都跑过去帮忙。 Please pass me the book whose （of which）cover is green.请递给我那本绿皮的书。 3）which, that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. 农村出现了前所未有的繁荣。（which / that在句中作宾语） The package （which / that）you are carrying is about to come unwrapped. 你拿的包快散了。（which / that在句中作宾语） 18.2 关系副词引导的定语从句 关系副词可代替的先行词是时间、地点或理由的名词，在从句中作状语。 1）关系副词when, where, why的含义相当于\"介词+ which\"结构，因此常常和\"介词+ which\"结构交替使用。例如： There are occasions when （on which）one must yield.任何人都有不得不屈服的时候。 Beijing is the place where（in which）I was born.北京是我的出生地。 Is this the reason why （for which）he refused our offer?这就是他拒绝我们帮助他的理由吗？ 2）that代替关系副词，可以用于表示时间、地点、方式、理由的名词后取代when, where, why和\"介+which\"引导的定语从句，在口语中that常被省略。例如： His father died the year （that / when / in which）he was born.他父亲在他出生那年逝世了。 He is unlikely to find the place （that / where / in which）he lived forty years ago. 他不大可能找到他四十年前居住过的地方。 18.3 判断关系代词与关系副词 方法一：用关系代词，还是关系副词完全取决于从句中的谓语动词。及物动词后面无宾语，就必须要求用关系代词；而不及物动词则要求用关系副词。例如： This is the mountain village where I stayed last year. 这是我去年呆过的山村。 I'll never forget the days when I worked together with you.我永远不会忘记与你共事的日子。 判断改错： （错）This is the mountain village where I visited last year. （错）I will never forget the days when I spent in the countryside. （对）This is the mountain village （which）I visited last year. （对）I'll never forget the days （which）I spent in the countryside. 习惯上总把表地点或时间的名词与关系副词where, when联系在一起。此两题错在关系词的误用上。 方法二：准确判断先行词在定语从句中的成分（主、谓、宾、定、状），也能正确选择出关系代词/关
同位语从句与定语从句的区别（配练习与答案） 一、复习定语从句 1.定义：该句子在复合句中作定语，像形容词一样起修饰作用。 2.特点：1)用陈述句语序。2) 去掉从句主句仍是一个完整的句子。 3.位置：位于所修饰的名词之后，该名词叫做先行词。 4.引导词：1）关系代词： a) 在从句中可做主语，宾语，定语。 b) 分为：先行词为人：who(主，宾)，whom(宾)，whose(定), that（主，宾） 先行词为物：which(主，宾), that（主，宾）,whose（定） eg：The lady who is standing behind Tom is my sister. This is the book which I bought yesterday. c) 关系代词在从句中作宾语常常省略。 2）关系副词：a)在从句中作状语。 b)分为：when , where, why eg：He came last night when I was out. 新内容： 1.词类：同从的名词只能是抽象名词;定从可是名词也可是代词 I can’t stand the terrible noise that she is crying loudly. His mother did all she could to help him with his study. 2.性质：同从对前面的抽象名词进一步解释说明;定从对先行词进行修饰和限制。 The news that our team has won the game was true. The news that he told me yesterday was true.
定语从句和同位语从句的区别 定语从句与同位语从句是高中英语教学内容的重点，也是英语阅读中的难点，它们相似的位置，使许多学生往往混淆，阻碍了对文章的理解。那么，如何正确地区分定语从句与同位语从句呢？ 一、从意义上讲，定语从句的作用相当于一个形容词，是用来修饰前面的名词或代词的；同位语从句的作用相当于一个名词，是对前面的名词作进一步解释的。例如： 1．We heard the news that he had told her. 我们听到他对她说的消息。（定语从句） 2．We heard the news that he had won the game. 我们听到消息他赢得了比赛。（同位语从句） 二、从引导词的句法功能上讲，定语从句的引导词在从句中充当一定的成分，可作主语、宾语、状语等；而同位语从句中的引导词在从句只起连接作用，不作任何句子成分。例如： 1. A plane is a machine that can fly. 飞机是一种能飞的机器。 2. The fact that they didn't finish the work has to be faced. 必须面对事实，他们没有完成工作。 三、引导定语从句的关联词在从句中作宾语或状语时，可以省略或被其他词代替；而同位语从句的引导词一般不能省略，更不能被代替。例如： 1. The news (that) she heard is true. 她听到的消息是真的。 2. The news that she will go abroad is true. 她将出国这消息是真的。 3. The reason why (= for which) he was chosen remains unknown. 他为什么被选上的原因还是不清楚。 4. The idea why he was chosen attracted our attention. 他为什么会被选上，这一想法引起我们的注意。 四、同位语从句与其所修饰的名词之间是一种同位关系，二者之间存在逻辑上的系表关系，可用“主+系+表”结构来表示，即添加法。而定语从句所修饰的名词是从句逻辑上的主语、宾语、表语、定语、状语。例如：The news that he won the first place is true. 他赢得冠军的那个消息是真的。 (上句若用“主+系+表”结构来表示，则是: The news is that he won the first place. 消息是他赢得了冠军。 意思合理，系表结构成立，故为同位语从句.) The reason (that )he explained is true. 五、定语从句所修饰、限定的先行词可以是各类名词，可以有复数形式；而同位语从句一般都与抽象名词同位，(如：idea，plan，fact，theory，promise，hope，news，doubt，truth，information，suggestion，question，thought，belief，conclusion)，一般没有复数形式。例如： 1. The possibilities that she was offered seemed very great.她得到的可能性似乎大些。（possibilities是定语从句的先行词，可用复数形式） 2. Her mother was worried about the possibility that her daughter dislike to go to school. 她的母亲很担心，她女儿有可能不喜欢上学。（possibility是抽象名词，后接的是同位语从句，一般不用复数形式） 六、由when, why, where引导的定语从句分别修饰或说明表示时间、原因或地点的词，但它们引导的同位语从句一般不和表示时间或地点的词同位。例如： 1. I still remember the day when I first came to Beijing. 我仍然记得初次来北京的那天。 2. I have no idea when she will be back.我不知道她何时回来。 3. This is the house where I lived two years ago.这是我两年前住的房子。 4. The question where we shall have a meeting hasn't decided. 我们到什么地方去开会，这个问题没有决定。例1、3中的when和where引导的是定语从句，day 和house分别表示时间和地点；例2、4中的when 和where引导的是同位语从句。
定语从句与同位语从句的区分 一、定语从句相当于一个形容词, 它对先行词起修饰、描述和限制的作用。同位语从句相当于名词，属于名词性从句，它是对前面名词内容的具体表述，它们之间的关系是同位关系。试比较： The news that you heard is not true. 你听到的那个消息不是真的。（定语从句） The news that he has died is true. 他已经去世的消息是真的。（同位语从句，说明了news 的具体内容，即he has died） 二、同位语从句常跟在news, fact, promise, idea, word, message, hope, truth, answer, proposal, suggestion, order, information 等少数名词之后，而一般名词之后都可跟定语从句。如： The suggestion that the new rule be adopted came from the chairman. 采纳新规则的建议是主席提出的。 He didn\\'t give the answer why he was late. 他没回答他为什么迟到这个问题。（同位语从句） Then rose a question where we should go. 于是产生了一个问题：我们该到哪里去？（同位语从句） 三、that 在定语从句中充当某一成分, 是关系代词; that 在同位语从句中不作任何成分，仅把主句与从句连接在一起，是从属连词。如： The fact that just now you talked about interests me. 你们刚才谈论的事情使我感兴趣。（定语从句） The fact that he failed in the exam made his parents very angry. 他考试没及格这个事实使他的父母很生气。（同位语从句） 四、when, where, why, how, who, whom, which 如果引导定语从句, 它们分别指前面先行词所表示的时间、地点、原因、方式、人和物，否则引导的就是同位语从句。试比较：
定语从句 一、基本概念： 定语： 定语从句： Do you know the man who spoke at the meeting just now That is the house where he lived ten years ago. 引导词：关系词 关系代词有：that, who, whom, whose, which; 在从句中充当： 关系副词有：when, where, why. 在从句充当： 先行词： 定语从句中引关系词的作用： 二、关系词的用法： （一）关系代词的用法： 1． He is the man lives next door. The train has just left is for Shenzhen. 2． The man ________ we have just seen is a famous writer. Where is the book ___________I bought last week （二）关系副词的用法： 1． I still remember the time ________I first became a college student. Do you know the date __________Lincoln was born
(三) 使用关系副词应注意下列几点： 1．这三个关系副词在意义上都相当于一定的介词+which结构： when = on (in, at, during…) + which; where = in (at, on…) + which; why = for which. 如： I was in Beijing on the day when (=on which) he arrived. The office where (=in which) he works is on the third floor. This is the chief reason why (=for which) we did it. 2．当先行词是表时间的time, day等和表地点的place, house等时，一定要注意分析从句的结构，如果缺少主语或宾语时，关系词应该用which或that, 缺少时间状语或地点状语时，才能用when或where，试比较： I’ll never forget the day _________ my hometown was liberated. I’ll never forget the days____________we spent together last summer. His father works in a factory____________radio parts are made. His father works in a factory______________makes radio parts. 三．限制性定语从句与非限制性定语从句 1．限制性定语从句 This is the telegram which he refers to. Is there anything (that) I can do for you 2．非限制性定语从句 This note was left by Tom, who was here a moment ago. As a boy, he was always making things, most of which were electric.
同位语从句和定语从句的三点区别 同位语从句和定语从句很相似,但还是有区别的,区别主要在以下三方面: 1. 从词类上区别 同位语从句前面的名词只能是idea,fact,news,hope,belief,suggestion,proposal,word,thought,doubt,truth,possibi lity,promise,order等有一定内涵的名词，而定语从句的先行词可以是名词、代词、主句的一部分或是整个主句。如: The possibility that the majority of the labour force will work at home is often discussed.人们经常讨论大多数劳动力将会在家里工作的可能性 (同位语从句) We are not looking into the question whether he is worth trusting. 我们正在调查的问题不是他是否值得信赖的问题 (同位语从句) Word came that he had been abroad. 据说他已经出国了 (同位语从句) Our team has won the game, which made us very happy. 我们的队赢了,这让我们很高兴(定语从句) The doctor whom you are looking for is in the room. 你找的那位医生在房间里面 (定语从句) His mother did all she could to help him with his study. 他妈妈尽她的最大努力帮助他的学习 (定语从句,代词all作先行词) 2. 从性质上区别 ? 定语从句是从句对其先行词的修饰或限制,属于形容词性从句的范畴;而同位语从句是从句对前面抽象名词的进一步的说明和解释,属于名词性从句的范畴如: The news that our team has won the game was true. 我们队赢了那场比赛的消息是真的(同位语从句,补充说明news到底是一个什么消息) The news that he told me yesterday was true. 昨天他告诉我的那个消息是真的 (定语从句,news在从句中作told的宾语) I made a promise that if anyone set me free I would make him very rich. 我许诺如果谁让我自由,我就让他非常富有 (同位语从句,补充说明promise到底是一个什么诺言) The mother made a promise that pleased all her children. 妈妈做出了一个令她的孩子们高兴的许诺 (定语从句,promise在从句中作pleased的主语) 3. 从引导词及其在句子中的成分上区别 有些引导词如how, whether, what可以引导同位语从句,但不能引导定语从句如: That question whether we need it has not been considered. 我们是否需要它这个问题还没有考虑 (同位语从句) I have no idea what has happened to him. 我不知道他发生了什么事 (同位语从句) 引导词that引导定语从句时,在从句中一般作主语或宾语(指物时还可以用which代替),并且作宾语时常常省略that在同位语从句中仅起连接作用,不充当任何成分,并且不能省略,也不能用which来代替如: The order that we should send a few people to help the other groups was received yesterday. 我们应派几个人去帮别的几个小组的命令昨天收到了(同位语从句,是对order 的具体解释,that虽不作成分,但不能省略)
高中英语定语从句详解 定语从句用来充当句中定语的主谓结构；它主要用于修饰句子中的名词、代词。而定语从句的位置常常是紧跟在被修饰的名词、代词的后面。在被修饰的名词、代词与定语从句之间往往有一个关系词将其前后两部分联系成一个整体，或是构成一个名词短语；或是构成一个代词短语。但从结构上说，关系词与从句是一个整体。排除句子的其他各部分，这种带有定语从句的名词短语或是代词短语的构成可演示如下：1）three signs that indicate a person is suffering from a panic attack rather than a heart attack 三种意味着一个人是患有惊恐症而不是心脏病的迹象在这个带有定语从句的名词短语中： signs是：被修饰的名词； that是：关系词； that indicate a person is suffering from a panic attack rather than a heart attack是定语从句 2）those who drink a l ot 那些大量饮酒的人在这个带有定语从句的代词短语中： those是：被修饰的名词； who是：关系词; who drink a l ot是：定语从句通过上面的演示,我们可以归纳出定语从句在句子中的位置、结构如下：
被修饰的名词/ 代词+ 关系词+ 句子(其中，"被修饰的名词/代词"在语法叫作"先行词".) 要点提示： 1）"先行词"与"关系词"的内在联系"先行词"与"关系词"之间实质上是互等、互换的关系。也就是说，关系词的作用就是将先行词所表达意义"代到"从句中来起作用。例如： They often become easily frightened or feel uneasy in situations （先行词）where (关系词)peopl e normally woul d not be afraid . 他们常在人们一般不会感到害怕的情况下却很容易感到恐惧或是感到不自在。 （本句中的关系词where = 先行词（in）situations 。如果把这个复合句拆成两个分句，那就是： They often become easily frightened or feel uneasy in situations peopl e normally woul d not be afraid in situations 由此可以看出，"先行词"与"关系词"之间实质上是互等、互换的关系）。又例如： Rude peopl e are those （先行词）whose (关系词)behavior shows little respect for the rules（先行词）that(关系词) the majority follows . 不讲礼貌的人是指那些，他们的行为对大多数人所遵从的规