《数学课程标准》指出:“课程内容要反映社会的需要、数学的特点,要符合学生的认知规律.”数学应用问题一直是近几年中考命题的热门话题,以现实生活为背景的解直角三角形应用问题更是受到中考命题者的青睐.这类问题具有取材新颖,立意巧妙,背景熟悉的特点,让学生有身临其境的亲切感.解决此类问题需要学生自觉地运用解直角三角形知识去观察、分析、抽象、概括所给的实际问题,揭示其数学本质,并转化为我们所熟悉的解直角三角形模型,利 The standard of mathematics curriculum states that: “The content of a course should reflect the needs of society and the characteristics of mathematics, so as to meet the students’ cognitive rules.” The problem of maths application has been a hot topic in the mid-term examinations in recent years. Against the background of real life Solution of the problem of right triangle is even more popular among the candidates in the senior high school entrance examination.This kind of question has the characteristics of novelty, cleverness, familiar background, so that students have immersive intimacy.To solve these problems require students to consciously use Solution of right triangle knowledge to observe, analyze, abstract, summarize the actual problems given to reveal its mathematical nature, and into our familiar solution right triangle model, Lee