精选优质文档-倾情为你奉上高三语法专题 名词性从句 主语从句，表语从句，宾语从句和同位语从句在复合句中的作用相当于名词，因此这四种从句统称为名词性从句。一：名词性从句的引导词1;连接词:that, if, whether.只起引导作用，在句中不充当任何成分其中that不翻译出来，没有任何含义；而if和whether翻译成”是否”。Eg: That this has happened is not uncertain. We cannot be sure whether /if our dreams will come true.2:连接代词：who, , whose, which, what, whatever, whoever, whichever.在句中要充当主语，宾语，表语I wonder what you are thinking about.Can you imagine what will happen next?My hometown is not what it used to be.；连接副词：where
