What does he do?与What does he work?有什麽不同?

What does he work? - 病句
What does he work as ? 就对

what does he do ?
比较笼统的问法

What does he work as ?
问工作性质，职位 等

很口语化的英文
第一句：他是干啥的？
第二句：他是干啥工作的？
意思都一样，看你怎么说了。

1, 他是做什么的？（询问职业）
2， 他在做什么？（强调现在工作的内容）

what does he do是问职业。what does he work这种句子不常见，一般要么what is his work 要么what does he work for。