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纵观几年来的高考试题,全国高考理科综合试题中都增加了开放性试题,这是高考实行改革的具体体现.开放性试题具有条件的不完备性、结论的不确定性、过程的探究性、知识的综合性和思维的不约束性等特点,考生必须从多角度多层次运用多种模式去解决问题.开放性试题更能有效地考查学生的发散思维能力,因此,高考已经高度重视和密切关注开放性试题,使之逐渐成为化学实验命题的新动向.分析开放性实验题的命题倾向,大体可以归纳为以下三个方面.
Looking at the examination questions in recent years, the open examination questions have been added to the comprehensive examination questions in the national college entrance examination science. This is a concrete embodiment of the implementation of reforms in the entrance examination. The open questions have incompleteness of the conditions, uncertainties in the conclusions, and exploration of the process. The comprehensiveness of knowledge, non-binding characteristics of thinking and other characteristics, candidates must use multiple modes to solve problems from multiple angles and multiple levels. Open test questions can more effectively examine students’ divergent thinking ability, therefore, college entrance examination has been highly valued and Pay close attention to the open questions and make them become the new trend of the chemical experiment proposition. Analyzing propositional tendencies of the open experiment questions can be roughly classified into the following three aspects.