水郡都城
⒈由两个或两个以上同一层次的语言单位组成的结构，其中前项与后项所指相同，句法功能也相同，后项是前项的同位语。Mr. Smith,our new teacher,is very kind to us.我们的新老师史密斯先生对我们很好。our new teacher是主词Mr. Smith的同位语，指同一人。Yesterday I met Tom,a friend of my brother's.昨天我遇到了我弟弟的朋友汤姆。a friend of my brother's是受词Tom的同位语，指同一人。⒉如同位语与其同位成分关系紧密时不用逗点隔开；如同位语对其同位成分只作补充解释时可用逗点隔开。He himself told me that his brother John is a world-famous doctor.他本人对我讲，他的兄长约翰是一位世界闻名的医生。himself和John都是单一的字作同位语，与其同位成分之间不用逗点隔开。Yesterday I talked to my English teacher,Mr. James.昨天我与我的英语老师詹姆斯先生谈过了。同位语Mr. James补充解释my English teacher，同位语与其同位成分之间可用逗点隔开。⒊同位语除表示其同位成分的全部意义外，还可以表示部分意义。We Chinese people are brave and hardworking.我们中国人民是勤劳勇敢的。He is interested in sports,especially ball games.他喜欢运动，特别是球类运动。
同位句一般是在一个主语之后用逗号隔开的一个名词短语或是一个完整的句子，后面也有逗号与谓语隔开。The insect, a large cockroach with hairy legs, is crawling across the kitchen table.中间一部分就是同位语，同位语也可以放在句末。它与定语从句的区别就是，定语从句中的先行词会做成分，而同位语中试不做成分的，而且不能省略。
Lena睡美梦
楼上的句子到处都是语法错误.要改你的句子都要写一大篇了.干脆只告诉你正确的句子吧： It was Lily who came up with the idea that people should drink more soft drink. 这里,idea和that people should drink more soft drink是等同的,所以that people should drink more soft drink是个同位语从句.注意idea不是楼上所说的主语.这句话的主语是It. 略微把上句改一下,就可以造出一个主语的同位语来： Lily, the girl who came up with the idea that people should drink more soft drink, is in my class. 这样,the girl就是Lily的同位语.后面的who came up with the idea是定语从句.而that people should drink more soft drink仍然是idea的同位语. 记住同位语和它所修饰的词是完全等价的.再给你一些例子： My sister Helen will come with us. Helen是同位语,修饰my sister. The news that he died shocked everyone. that he died是同位语从句,修饰the news.
妮裳风云
“同位语”是用来进一步说明前面某一个名词的词.例如： Mrs.Brown,John's mother is a kind lady.约翰的妈妈,布朗太太是一个和蔼的女士. 说明：这里的John's mother就是“同位语”,用来进一步说明Mrs.Brown的身份. 除了“名词”作同位语,还有用一个句子作同位语,我们叫它“同位语从句”.例如： Word came that her husband was killed in an accident.有消息传来她丈夫在事故中丧生了. 说明：这里的同位语为her husband was killed in an accident,目的是用来进一步说明word,即“消息”的具体内容. 如需要,我还可以给你更多的例句.
真理在朕
1定义：用作同位语的从句叫做同位语从句。2用法：同位语从句的先行词多为fact, news, idea, thought, question, reply, report, remark等，关联词多用从属连词。如：They were all very much worried over the fact that you were sick.对你生病这件事，他们都很焦虑。Where did you get the idea that I could not come?你在哪儿听说我不能来？Early in the day came the news that Germany had declared war on Russia.德国已对俄国宣战的消息一大早就传来了。注：同位语从句偶尔由从属连词whether引导。如：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。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。
