数学来源于实践 ,又反作用于实践 .也就是说 ,数学不光研究现实生活中现成的问题 ,更要用数学去指导实践和改造生活环境 .2 0 0 3年高考数学 (京卷 )的两道应用题 ,第 10题 (选择题 )与第 19题 (解答题 ) ,其显著特点是将数学知识、方法与实际生活融合一体 ,考查考生的数学建模 Mathematics comes from practice but also from practice. That is to say, mathematics not only studies existing problems in real life, but also uses mathematics to guide practice and transform the living environment. Two years of mathematics in the college entrance examination in 2003 (Beijing volume) Application questions, questions 10 (multiple choice questions) and 19 questions (solve questions), their notable feature is the integration of mathematics knowledge, methods and real life, examining the candidate’s mathematical modeling