区别是：
based on是
过去分词做状语，意思是基于。
be based on是
被动语态，表示...是在...的基础上的。
例句辨析：
based on
1、Based on the fact that we found his hairs on her body.
根据我们在她的身体上找到了他的毛发。
2、Based on the fact, a simplified drying model of heat and mass transfer is deducedfrom volume average theory.
对多孔介质体积平均理论进行简化，得到简化的热质传递干燥模型，用一个理论式表达模型中有效扩散系数。
3、Based on the fact that a chirp radar signal has a strong coupling between time and velocity, a deceptive jamming technique with shift frequency is proposed.
本文基于线性调频脉压信号在时间和多卜勒频率间存在强耦合的事实，提出用移频干扰实现欺骗干扰的方法。
be based on
1、The selection process is based on rigorous tests of competence and experience.
选拔过程是基于对能力和经验的严格测试。
2、The study was based on data from 2,100 women.
这项研究基于从2,100名女性那里收集来的资料。
3、Democracy is based on good will and mutual understanding.
民主建立在善意和相互理解的基础上。