初中英语。sure 后面 that 为什么 可以省略 ？

that后引导的从句做主句sure的宾语，它是宾语从句，that一般可以省略。追问

宾语从句 连接词一般可以省略？

追答

宾语从句中that一般情况可省 ,但that在引导宾语从句时也并不是任何情况下都可以省略.在以下情况下,that不能省略.
1． Everybody could see what happened and that Tom was frightened.(and连接两个宾语从句,that宾语从句放在and的后面时,that不能省略.)大家都会看出所发生的事情并知道Tom非常害怕.
2．I know nothing about him except that he is from the south.(that引导的宾语从句作介词宾语时,that不能省略.)对他我一无所知,只知道他是南方人.
3．That he ever said such a thing I simply don’t believe.(that从句位于句首时,that不可省略.)我简直不相信他曾说过这样的话.
4． We decided,in view of his special circumstances,that we would admit him for a probationary period.(主句谓语动词与that从句之间有插入语,that不可省略.)

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