2018年公共英语四级重点语法资料：同位语从句

　　同位语从句

　　1、用作同位语的从句，叫同位语从句。它一般跟在某些名词的后面，用以说明或解释前面的名词，引导同位语从句的词有连词that，连接副词how, when, where等，如：

　　I have no idea when he will be back. 我不知道他何时会回来。

　　We heard the news that our team had won. 我听到了我们队胜利的消息。

　　2、that引导的同位语从句

　　在某些名词后可用that引导同位语从句，如：

　　I had no idea that you were here. 我不知道你在这里。

　　The act that he won the first prize can’t be denied. 他取得第一名的事实不容否认。

　　3、no idea+ wh-疑问词引导的同位语从句

　　I have no idea where he has gone. 我不知道他去了哪里。

　　She had no idea how she should do. 她不知道她应该怎样做。

　　4、应注意的几个问题

　　(1)名词demand ,proposal ,suggestion等后的同位语从句要用虚拟语气，谓语为“should+动词原形“或只用动词原形，如：

　　The suggestion that the plan (should) be delayed will be discussed tomorrow.

　　推迟那项计划的建议将在明天讨论。

　　She refused the demand that he (should) do the work alone.

　　她拒绝了他单独做那项工作的请求。

　　(2)同位语从句与定语从句的区别

　　同位语从句引导词无意义，不充当成分，但不可省略，同位语从句与其说明的名词或代词应为同一内容，但定语从句的引导词要在句中作成分，是对先行词的一个限定说明，如：

　　He told me the news that our team won.(that引导同位语从句)

　　He told me the news that(which) was very exciting.(that引导定语从句)

　　We are interested in the news that some foreigners will visit our school.(同位语从句)

　　We are interested in the news that he told us.(定语从句)