函数、不等式是中学数学的重要内容，二者有着密切的内在联系，历年来都是高考考查的重点．其中以函数为背景的不等式问题，是近些年来高考数学试题的一个热点．剖析此类试题的共性和个性，大致可概括为：一个背景，四种类型”．即在函数背景下，求参数的取值范围、解不等... Functions and inequalities are important contents of middle school mathematics. They have close internal relations and have been the focus of the college entrance examination over the years. The problem of inequality with function as background is a hot issue in the mathematics test of college entrance examination in recent years. The generality and personality of such questions can be roughly summed up as follows: one background, four types". That is, in the context of a function, the value range of a parameter, the solution is not equal, etc.