He is really______great success on business 问为 么这里为什么要用a来修饰success
问题描述：
He is really______great success on business 问为 么这里为什么要用a来修饰success
答
a success :一个成功的人；一件成功的事
答
success本来是一个抽象名词，通常不可数。但是，当success的内容指的是具体某一人、某一事实的时候，就转化为可数名词，用不定冠词a 来修饰。
答
a success :一个成功的人；一件成功的事
e.g.He was a success .=He was a successful person.他曾经是一个成功人士.
The experiment was a success .=The experiment was successful.实验（很）成功 .