通过历年高考生物试题的研究,总结了双纵坐标图常见题型的特点和解题策略。通过命题实践的体验,归纳了双纵坐标图的命题策略:阅读科技论文,寻找情境材料;构建双纵坐标图,构筑试题模坯;试题深入加工,精心调节难度;根据命题要求,进行题型转换;试题实测分析,反思命题缺陷。 Through the study of bio-examination questions in college entrance exams over the years, the characteristics of common problems in double-ordinate figures and the strategies for solving problems are summarized. Through the experience of the proposition practice, this paper sums up the proposition strategies of double ordinate: read scientific papers, look for situational materials; construct double ordinate, construct test blank; test in-depth processing, carefully adjust the difficulty; according to the requirements of the proposition, Conversion; test analysis, reflection proposition defects.