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通过对2016年理综化学试题的分析,不难看出化学实验题仍然保持着“回归基础、贴近生活”的命题理念,因此对其中的重点内容及题型需专题、系统地讲解、突破,关注在解题训练中生成的问题,熟练掌握解答各类热点题型的策略与思想方法,进而不断提高学生发现问题、分析问题和解决问题的能力.例(2016年北京卷)以Na2SO3溶液和不同金属的硫酸盐溶液作为实验对象,探究盐的性质和盐溶液间反应的多样性,如表1所示.
Through the analysis of the rationale for chemistry and chemistry in 2016, it is easy to see that the chemistry experiment still maintains the proposition of “returning to the foundation and living close to life ”. Therefore, it is necessary to systematically explain and explain the key contents and questions in the experiment , Pay attention to the problems generated in the problem-solving training, master the strategies and ways of thinking to answer all kinds of hot questions, and then continuously improve students’ ability of finding problems, analyzing problems and solving problems. And different metal sulfate solution as the experimental object to explore the nature of salt and salt solution reaction diversity, as shown in Table 1.