纵观近几年的高考题,我们发现,尽管三角函数试题总体难度不大,但问题呈现的方式、背景以及问题的结构形式在不断变化,与相关知识交汇的深度、广度、难度也在不断地加大,有关三角函数的综合题在试卷中的位置有所后移,并常常作为压轴题,以创新题的面貌出现在试卷之中。三角函数是一种重要的初等函数,由于其特殊的性质以及与其他代数、几何知识的密切联系,成为研究其他部分知识的重要工具。因此三角函数与其他知识的交汇考查也是近 Looking at the college entrance examination papers in recent years, we find that although the overall difficulty of the trigonometry questions is not large, the ways, backgrounds and the structural forms of the problems are constantly changing, and the depth, breadth and difficulty of intercourse with related knowledge are also constantly The position of the comprehensive questions about trigonometric functions in the test paper has been shifted backward, and often as a finale question, the appearance of the innovative question appears in the test paper. Trigonometric function is an important elementary function, because of its special nature and its close relationship with other algebra and geometric knowledge, it becomes an important tool for studying other parts of knowledge. Therefore, the intersection of trigonometry and other knowledge is also close examination