从 句 从句按其在主句中的句法功能可分为三类: 即名词性从句、形容词性从句(即定语从句)和副词性从句(即状语从句)。 引导从句的词称作关联句.一、名词性从句引导这些名词性从句的关联词包括: 从属连词that, if, whether;连接代词who,whoever,whom,whomever,which,whichever,what,whatever,whose; 连接副词where, when, why, how。其中, 从属连词只起连接作用, 在从句中不充当任何句法成分,而连接代词和连接副词既起连接作用, 在从句中又充当一定的成分.That Owen should have married his cousin is not at all surprising.The fact is that he didnt go to the dinner party.I dont know if he will attend the meeting.Have you heard the news that Mary i