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框图推断题是每年各地中考化学的经典题型,它不仅能考查学生对元素及其化合物知识的掌握情况,更能考查学生的分析、推理、综合应用知识的能力,具有很强的区分度与选拔功能。框图推断题具有条件隐含、综合性强、思维容量大等特点,常涉及物质的组成、性质、用途和制备等知识内容。一、解题一般步骤中考化学框图推断题的解题一般步骤为:游览全题、寻找突破、分析推断、验证确认、准确答题。二、常用推断方法中考化学框图推断题的常用推断方法有:(1)顺
Block diagram inference questions around the year is a classic test of chemistry questions, not only to examine the students grasp of the elements and their knowledge of compounds, but also to examine students’ ability to analyze, reason and apply knowledge, with a strong degree of distinction Selection function. The inference of the block diagram has the characteristics of implied conditions, strong comprehensiveness and large thinking capacity, and often involves knowledge of the composition, nature, use and preparation of the material. First, the general steps to solve questions in the examination block diagram of the chemical problem inference general problem solving steps: to explore the whole topic, looking for breakthroughs, analysis and inference, verification confirmation, accurate answer. Second, the commonly used method of inference Chemical test inference block inference common inference methods are: (1) Shun