The reason why he missed the bus was that he got up late.

问题描述:

The reason why he missed the bus was that he got up late.
中的that能否不要?为什么?
我觉得后面是名词性从句啊.that无实际意义啊?

that引导的是表语从句,这时候一般不省略.
that在引导名词性从句的时候(主语、宾语、表语、同位语从句),都没有实际意义,只作引导词,但是只有宾语从句中的that被省略.