实验试题一直是高考化学科考查的“重头戏”。综观近年高考可以发现,“源于教材,高于教材”是高考化学实验题的特点,以教材为基础,通过重现、改进或拓展教材实验,挖掘教材内容的实验因素来编制试题考查化学实验能力,是化学实验试题命题的趋势。在实验复习教学过程中,我们不能仅停留在对原有的教材实验的机械复习,而要重新审视教材实验或教材 The experimental test questions have always been the “main show” of the college entrance examination chemistry. Looking at the college entrance examination in recent years, it can be found that “from the teaching material, higher than the teaching material” is the characteristic of the chemistry test question in the college entrance examination. Based on the teaching material, test items can be compiled by reproducing, improving or expanding the teaching experiment, and excavating the experimental factors of the teaching material content. The ability of chemical experiment is the trend of the proposition of chemistry experiment. In the process of reviewing the experiment, we cannot only stay on the mechanical review of the original textbook experiment, but we must re-examine the textbook experiment or teaching material.