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《考试大纲》强调:“在高考中,充分利用选择题和填空题的题型特点,为考查数形结合的思想提供了方便,能突出考查考生将复杂的数量关系转化为直观的几何图形问题来解决的意识.”根据这一思想,每一年的高考题中的选择或填空题(包括解答题)都有运用数形结合解决问题的题目,主要考察的是作图、识图、用图的能力.一、作图有一类问题是由已知条件要你求出函数图像,或者识别函数图像的.这类问题可以具体求出函数图像,或者利用函数变化的规律识别图像.
The “Exam Outline” emphasizes: “In the college entrance examination, the full use of multiple-choice questions and fill in the blanks of the questions type features, to facilitate the examination of the number of ideas combined, can highlight the candidates to examine the complex quantitative relationships into intuitive geometry The problem is solved by thinking.”According to this idea, each year’s college entrance examination questions in the selection or fill in the blank questions (including answer questions) have the use of a number of shapes to solve the problem of the problem, the main study is to map, read map The ability to use graphs. One of the problems with graphing is that the known conditions require you to find functional images, or to identify functional images. Such problems can be used to specify function images, or to identify images using the law of function change.