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英语八大从句类型与用法总结举例如下：
一、定语从句：
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分。
二、状语从句：
表示“当…时候”的while，when，as的用法区别是：while从句中的谓语动词必须是延续性动词；表示带有规律性的“每当”或当主、从句谓语动词的动作发生有先后时，只能用when；当表示“一边…一边…”或“随着”时，只能用as，另外，用于此义的as所引导的时间状语从句谓语只能是动作动词，不能是状态动词。
三、名词性从句：
在句子中起名词作用的句子叫名词从句(NounClauses），名词从句的功能相当于名词词组,它在复合句中能担任主语、宾语、表语、同位语、介词宾语等，因此根据它在句中不同的语法功能，名词从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。
英语从句
主语从句，宾语从句，表语从句和同位语从句。这4种属于名词性从句，相当于一个名词功效。
定语从句，相当于形容词功效。
状语从句，相当于副词功效。
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4.同位语从句
同位语从句用于对前面出现的名词作进一步说明，一般用连词that引导，由于先行名词的意义不同，也可用whether,who,when,where,what,why,how等引导。常见的先行名词fact,idea,belief,news,hope,conclusion,evidence,suggestion,order,problem,report,decision.有时由于谓语较短，将同位语从句位于谓语之后。She finally made the decision that she would join the fashion show.I had no idea how many books I could borrow at a time.The news came that their team had won the championship.
5.定语从句定语从句所修饰的先行词可以是名词或代词，也可以是一个句子。定语从句通常位于先行词之后，由关系代词或关系副词引导。This is the computer on which he spent all his savingsIt is written by a person with whom we are all familiar.6.状语从句*时间状语从句As soon as I sent an e-mail message,I received positive responses.The moment he heard the good news,he jumped with joy.*地点状语从句Considering that he is a freshman,we must say he is doing well.Mickey Mouse is so attractive that the children are reluctant to leave.We got up early this morning so that we could catch the first bus to the railway station.*条件和让步状语从句As long as you have the right equipment,you can use a telephone line to transmit computer data.No matter what you may say,I would not change my mind.Young as he is,he is quite experienced in this work.(=though he is young)Child as he is,he can speak English fluently.(=though he is a child)*方式状语从句The young man made the experiment just as the teacher had taught him.Everything went on as usual as if nothing had happened.
