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        浅谈定语从句与同位语从句区别
        更新时间:2010-11-23 22:52:25, 采编:广州启源家教网

        首先看引导从句的关系词that是否在从句中担任句子成分。假如在从句中担任主、宾、表,则是定语从句。再看that前的表名称的词是否是一点需求有内部实质意义的表名称的词,如:idea, fact, thought, news等。(belief, dou变态, fact, hope, idea, news,possibility, thought, message, word, problem, promise, truth, information, plan, suggestion, opinion, problem, question, decision, answer, reply)后面的从句是解释明白其内部实质意义的,(这个表名称的词在后面的从句中部担任不论什么成分),这个从句则是同位语从句

         例1、The news that he had been back surprised us all. (that指导同位语从句)

            例2、He had to settle the problem that they left. (that指导定语从句)

        区别两类从句的办法是看关系词是否在从句中担任成分,若担任成分的就是定语从句(如例2, that在从句中担任left的宾语):不担任成分而只是论述面前表名称的词的具体内部实质意义的,就是同位语从句(如例1,he had been back就是news的具体内部实质意义)。


        还是从语气上鉴别
        从句位于少量几个表名称的词,如 suggestion,advice,order,request 等后时,同位语从句的谓语动词务必用虚拟语气,既 should +动词原型, should可以省略;而定语从句则没有这一要求。如:
        The advice that we (should) build a school in that small village was supported by all of us. (同位语从句)
        The advice that he gave was supported by all of us. (定语从句)

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