导数作为高中教材的新增内容,它的应用简捷而广泛,因此越来越受到高考命题者的青睐.近几年的高考中,导数在各地试卷中频频出现.但在具体解题过程中许多学生易混淆一些基本的概念而导致解题的错误,甚是惋惜.笔者试通过与导数相近的概念进行剖析,以期帮助学生在比较的过程中加深? Derivatives as a new content of high school textbooks, its application is simple and wide, and therefore more and more subject to the college entrance examination proposition. In recent years college entrance examination, the derivative appears in the local examination papers frequently. But in the specific problem solving process, many Students are apt to confuse some basic concepts and result in mistakes in the solution. It is a shame. I tried to analyze the concept similar to the derivative in order to help students deepen the process of comparison.