宾语从句后接主语从句时为什么不省that?

来源：学生作业帮编辑：神马作文网作业帮分类：英语作业时间：2024/11/14 02:08:24

宾语从句后接主语从句时为什么不省that?
如 Knowledge and learning are important if we want to be successful ,but we must also realise that what we know and what we have learnt may also limit our thinking.

一般可省
此句中 that 代表的是两个问题即what we know and what we have learnt

宾语从句后接主语从句时为什么不省that? 英语中名词性从句中主语从句的及物动词后为什么不加宾语名词性从句中,that从句不放介词后,那为什么that能作介词宾语,且that作介词宾语时不能省略? 主语从句宾语从句主语从句宾语从句 that在引导宾语从句、主语从句、定语从句以及同位语从句时,都被称之为“关系代词”么? It seems that是宾语从句还是主语从句主语从句中,宾语从句中that分别是什么成分? it was arranged that 主语从句还是宾语从句? I‘m afraid that+从句后的从句为什么是宾语从句主语从句,谓语从句,宾语从句 that在名词性从句（主语从句,宾语从句,宾语从句,同位语从句）中可否省略