句子的表语是由一个句子充当的,那么这个充当表语的句子就叫做表语从句 The fact is that he was cheated. 这是个系表结构的句子,the fact是主语,谓语是系表结构,表语是that he was cheated,这个that引导的句子就是表语从句. 宾补和双宾的区别先看下面两个句子 They elected him president. I sent him a telegram. 第一个句子里面的him是elect的宾语,而president则不是elect的宾语,它是补充说明宾语him的情况. 第二个句子里面的him 依然是send的宾语,而telegram也是send的宾语
