有错误。你的感觉是对的,what 后面要加助动词,或者情态动词。改成:What would you want to be?What do you want to be?那个辅导书写错了。这里的 what you want to be 是主句,不是从句,而且是疑问句,所以需要有助动词,或情态动词。