高中英语同位语从句知识点整理

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that。
例如：
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?
注：同位语从句偶尔由从属连词whether引导。
例如：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。
例如：
the question who should do the work requires consideration. 谁该干这项工作，这个问题需要考虑。
it is a question how he did it. 那是一个他如何做了此事的问题。
 
注：
1.一些表示“建议、命令、要求”的名词后所跟的同位语从句中，谓语动词用虚拟语气should+动词原形表示。should可省。
例如：
this is our only request that this (should) be settled as soon as possible. 这就是我们唯一的请求：尽快解决这个问题。
 
2.引导词that在同位语从句中不作句子成分；而在定语从句中必作句子成分，是从句所修饰的词的替代词。
例如：
the fact that the chinese people invented the compas