he was worried about his exam和he worried about his exam在语法结构上有什么区别?

问题描述:

he was worried about his exam和he worried about his exam在语法结构上有什么区别?
大家再说说这两种句式的具体用法,

两个句子的区别在于 第一个句子使用的是被动句,第二个句子使用的是陈述句
那么第一个句子中是别人担心他的考试,而第二个句子是他担心自己的考试.