名词性从句( 一 )名词性从句的种类在句子中起名词作用的句子叫名词性从句。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、介词宾语、表语、同位语等,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。主语从句主语从句是在复合句中充当主语的从句That price will go up is certain.Whether we go by train or by boat makes no difference.Who will write the poem has not been decided yet.What surprised us is that he lost in the game.When he will be back depends on the weather.Where we live doesnt matter.How the pyramids were built was still a mystery. Watever he did is righ