同位语从句

同位语从句是名词性从句(主语从句、表语从句、宾语从句、同位语从句)中的主要从句之一，从句作同位语表示与之同位的名词(短语)的实际内容，它的作用相当于名词，对前面的名词(短语)加以补充说明或进一步解释，相当于一个表语从句，它们之间的关系是同位关系，即主表关系。

详细信息一个名词(或其它形式)对另一个名词或代词进行补充或说明，这个名词(或其它形式)就是同位语。

同位语与被它限定的词的格要一致，并常常紧挨在一起。

1. 名词作同位语Mr Wang, my child’s teacher, will be visiting us on Tuesday.2.短语作同位语I, the oldest girl in the family, always had to care for the other children.3. 直接引语作同位语But now the question comes to their minds, “Did she die young because she was a clone（克隆）?”4. 句子作同位语The girls were surprised at the fact that ocean ships can sail up the Great lakes.同位语从句用法同位语部分是个句子,就是同位语从句,这种用法比较"固定"一、在复合句中用作同位语的从句叫同位语从句。

它一般跟在某些名词后面，用以说明该名词表示的具体内容。

I heard the news that our team had won．二、可以跟同位语从句的名词通常有situation, evidence, belief, doubt, fear, question, theory, order, ability等等。

news，idea，fact，promise，question，doubt，thought，hope，message，suggestion，words（消息），possibility 等。

I’ve come from Mr wang with a message that he won’t be able to see you this afternoon．三、英语中引导同位语从句的词通有连词 that，whether，连接副词how,when,where等。

He must answer the question whether he agrees to it or not.四、有时同位语从句可以不紧跟在说明的名词后面，而被别的词隔开。

The thought came to him that maybe the enemy had fled the city．同位语从句-引导词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. 连词that引导同位语从句（注：引导同位语从句的that不能省略）The idea that you can do this work well without thinking is quite wrong.（作idea的同位语）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。

He grabbed his suitcase and gave the impression he was boarding the Tokyo plane.2. 连词whether引导同位语从句The question whether we should call in a specialist was answered by the family doctor.其它引导词引导的同位语从句连接代词what, who, whom, whose, which引导同位语从句1).I have no idea what size shoes she wears.（what作定语）2).I have no idea which wine is best—it’s a matter of personal taste.（which作定语）3).The question who will take his place is still not clear. （who作主语）4. 连接副词引导同位语从句连接副词when, where, how, whyWe haven’t yet settled the question where we are going to spend our summer vacation.同位语从句-语法区别与定语从句的的语法区别：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：We are glad at the news that he will come. (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. (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)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。

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。

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 .(同位语从句) I’ll never forget the days when I lived there(定语从同位语从句-特殊形式1.间隔同位语从句同位语从句通常是跟在它解释或说明的名词后，但有些情况下，由于句子结构的原因，同位语从句不紧跟在名词后，而被其他的词隔开。

A warm thought suddenly came to me that I might use the pocket money to buy some flowers for my mother's birthday3.短语及固定句式后的同位语从句I will come on condition that John is invited简析：短语On condition, on supposition, on the ground(s), on the understanding, with the exception, in spite of the fact, on the assumption及句式There BE + no doubt(hope,chance,possibility,…)后的that从句为同位语从句。

同位语从句-雅思例句1 I have a dream that one day, all roads will be made plain.2 We hold this truth to be self-evident that all men are created equal.3 Some people hold the opinion that the Internet is a curse.4 Museums play a role of education for the simple reason that they provide people with a good opportunity to have a deeper understanding of their own country's tradition and cultures.高考英语最可能考的同位语从句。

1. chance 可能性chance后接that引导的同位语从句，表示某事发生的可能性。

如：I think that there is every chance that you will succeed. 我想你取得成功的机会很大。

Do you think there’s any chance that you could get a job in Paris? 你看你是不是有机会在巴黎找个工作呢?2. doubt 怀疑doubt后接that引导的同位语从句，表示对某事的怀疑。

如：There is no doubt that the world is getting warmer. 全球气候正在变暖，这是肯定的。

There’s no doubt that one day a cure will be found. 毫无疑问，总有一天会找到治疗的方法。

3. fact 事实fact后接that引导的同位语从句，表示某个事实的具体内容。

如：The fact that something is cheap doesn’t necessarily mean it’s of low quality. 价廉未必物不美。

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。

In spite of the fact that hotel prices have risen sharply, the number of tourists is as great as ever. 尽管旅馆收费猛涨，旅客的人数还是同以往一样多。

4. evidence 证据evidence后接that引导的同位语从句，表示某个证据的具体内容。

如：Do you have evidence that this treatment works? 你有证据证明这种治疗会起作用吗?Is there any scientific evidence that a person's character is reflected in their handwriting? 一个人的笔迹反映其性格的说法有什么科学依据吗?同位语有两个特质：1，相当于中文里破折号后面的东西，起着解释说明的作用；2，省略掉完全不影响整个句子的内容。