be famous for;be famous as
这一对短语都是“以……而出（著）名”的意思，但它们会在含义和用法上有区别。
(1)当主语是表示人的名词时，be famous for表示“以某种知识、技能、作品或特征而出名”，be famous as 则表示“以某身份而出名”。试比较：
Einstein was famous for his Theory of Relativity.爱因斯坦以他的相对论而著名。
Einstein was famous as a great scientist.爱因斯坦以一位伟大的科学家而著称。
(2)当主语是地点名词时，be famous for 表示“以某种特点（产品）而出名”；be famous as 则表示“以什么样的产地而出名”。如：
Scotland has many lakes and mountains, and is famous for its beautiful countryside.苏格兰有许多湖泊和山脉，并以其乡村美景著称。
The area is famous as a green tea producing place.这个地区以绿茶产地而出名。
(3)当主语是事物名词时，be famous for表示“以其内容、特征、价值等而被人所知”；be famous as 则表示“以某种形式出名”。如：
This grammar book is famous for its practical usage. 这本语法书以其实用性而被人所知。
This book is famous as a reference book.这是一本有名的参考书。
总之，be famous for后的介词是主语的所属内容，而be famous as 后的介词宾语则与主语是同位成分。
希望对你有帮助 如有疑问 请在线交谈 祝你天天开心 心想事成 O(∩_∩)O ...
温馨提示：答案为网友推荐，仅供参考