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近年来,将简易逻辑与函数及不等式综合在一起的考题在高考中时有出现,且往往以小题压轴题的形式出现,这类题目已成为高考的热点及难点.这类试题知识覆盖面广,综合性强,灵活多样.从知识目标看能考查高中数学核心概念,从能力目标看能考查学生的分类讨论、数形结合、化归转化、分析问题及解决问题等能力.在推行高考命题以“能力立意”的今天此种类型倍受命题教师的青睐.1.背景及解析题目(2012高考北京文科卷14)已知f(x)
In recent years, the simple logic and function and inequality test questions in the college entrance examination often appear, and often appear in the form of small questions, such topics has become a hot and difficult college entrance examination. , Comprehensive, flexible and diverse.From the knowledge of the target can look at the concept of high school mathematics core, from the ability to look at the students can examine the classification of the discussion, the number of combination, turn to transform, analyze the problem and problem solving.In the implementation of college entrance examination proposition Today, this type of “conception of ability” is much favored teachers of the proposition .1 background and analytical topics (2012 college entrance examination Beijing liberal arts volume 14) known f (x)