他的工作是什么用英语怎么说两种

"What is his job?" 和 "What does he do for a living?" 都可以用来询问某人的工作是什么。
"What is his job?" 是问某人目前的职业或工作职位。例如："What is his job? Is he a teacher?"
"What does he do for a living?" 是问某人的职业或工作职位，并询问他靠这个职业来维持生计。例如："I don't know what he does for a living, but I know he's very successful."
来源：这两个短语都是英语中常用的问工作的说法。