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重视从课本实验中选取命题素材,倾向于考查化学实验基本操作,倾向于把一些课本小实验重组成一个微型的研究课题,考查实验中的细节问题,是近年来高考化学实验命题的重要特点.碱金属是高考实验命题的“发源地”之一,与之相关的实验题在高考中经常出现.下面笔者通过对一些具体问题的分析,探视碱金属实验题的命题特点.
The importance of selecting proposition materials from textbook experiments, tending to examine the basic operation of chemistry experiments, tending to reorganize some textbook experiments into a miniature research topic and examining the details of the experiments is an important feature of the chemical experiment proposition in the college entrance examination in recent years. Alkali metal is one of the “origins” of the college entrance examination experiment proposition. The related experimental questions often appear in the college entrance examination. The following author through the analysis of some specific issues, to explore the proposition features of the alkali metal experiment questions.