比如:宾语从句就是给宾语补充说明的吧.

怎么会呢.
要看是给谁补充说明了.
在句中充当宾语的从句叫宾语从句(不是什么补充说明的). 如: I don't know where his father works. 句中的从句where his father works 是know的宾语,是动词know的内容而不是补充说明.

在句中充当定语的从句叫定语从句.如: This is the factory where his father works. 此句中where his father works 是factory的定语, 因为factory是个名词.

在句中充当状语的从句是状语从句,它就可以用来补充说明句中的谓语了.

No!