在平时的习题教学中,特别是总复习的教学与测试中,我们经常喜欢改编习题,以期达到“举一反三”的理想效果,来提升学生灵活运用知识规律分析与处理问题的能力.这当然是常见的、高效的教学策略之一,问题是我们一定要注意改编习题的科学性以及考查的针对性与有效性.否则就可能出现科学性错误或过高偏难的能力要求,不但影响考查与训练效果的达成,还有可能会误导学生. In the usual practice teaching, especially in the teaching and testing of the general review, we often like to adapt the exercises in order to achieve the ideal effect of "giving top priority to improve the students’ ability to analyze and deal with problems flexibly using the law of knowledge. Is one of the most common and effective teaching strategies. The problem is that we must pay attention to the scientific nature of the adapted exercises and the pertinence and effectiveness of the test, otherwise, the ability to meet scientific mistakes or exorbitant demands may not only affect the test And the effect of training, there may be misleading students.