base on的動詞賓語是物,介詞賓語也是物；base in的動詞賓語是人,而介詞賓語一般是地點,即：base sth on sth,和base sb in/at ….
base sth on sth以某事為某事的依據(jù)、根據(jù)等,即基礎(chǔ)是,以.為基礎(chǔ).
如：The novels is based on historical facts.這部小說以歷史事實為根據(jù).
Base sb in/at …,將某人安置在（某地工作或活動）,以.為基地.
如：Most of us are based in Beijing.我們大多數(shù)人都駐在北京.