He's a different man from what he was 10 years ago

问题描述:

He's a different man from what he was 10 years ago
这是个什麽从句,怎样理解中间的what这个词?
1好有难度呀,这到底是个怎样的从句呀。几个人的答案都不一样。what大家的意思都差不多了。

这是一个介词宾语从句
介词宾语从句可分为两类:
一类是以连接代词或副词(what,who,which,when,where,why,how,whether)引导的,我们称之为 wh-从句;
另一类是由连接词 that 引导的,可叫做 that-从句.