Question

引导宾语从句的that可省还是不可省，两者之间的差在哪里？

Answer 1

that引导的宾语从句，一般可以省略that，但在以下6中情况中that不可以省略： 1.在由and和but连接的两个并列的宾语从句中，第一个从句中的that可以省略，第二个从句中的that不能省略。如：I know (that) you are very kind and that you can help me. 2.当that宾语从句中的状语位于从句的前部时，that不可以省略。如：Tell him that if he comes tomorrow, please call me. 3.当that前面有插入语时，that不可以省略。如：He didn't know, I'm sure, that his mother was ill. 4.当it作为形式宾语放在动词之后，而that引导的真正宾语从句放在句尾时，that不可以省略。如：They took it for granted that the singer was coming. 5.在省略答语中，当that宾语从句单独出现时，that不可以省略。如： ----What did you say? ----That he would be here at 8 o'clock. 6.当that宾语从句是双宾语中的直接宾语时，that一般不省略。如：I swear. I will never tell anyone that you have broken the glass.