He is famous as a singer. be famous as 后一般跟 人,表“做为.人而闻名” be famous for 后一般跟事物 ,表“因/由于.而闻名” be famous to 后一般跟 人,表“对.是熟悉的”,“为.所熟知的” 以上as, for, to都是介词. 例如: 1. Lu Xun is famous as a great writer. Lu Xun is famous for his great novels. 祝你学习进步,更上一层楼! (*^__^*) 不明白的再问哟,请及时采纳,多谢!