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近年来,许多省市的中考题在考查微粒知识时,不再是过多的文字叙述性题目了,出现较多的是微粒“示意图”题,这类题目简洁明了,情景新颖,该图放大了微观,直观、形象的表示出了微粒之间的变化关系,旨在考查学生的识图能力和对知识的灵活运用能力.现举几例中考题进行解析,供读者学习参考.一、判断物质的类别例1(2014年呼和浩特市)化学是在原子、分子水平上研究物质和创造物质.A是一种比较清洁的燃料,已知A和B能在一定条件下反
In recent years, many provinces and cities in the examination questions in the test of particle knowledge, is no longer too much of a narrative topic, appeared more particles “Schematic ” questions, such topics concise, the scene is novel, the Figure magnified micro, visual, image shows the relationship between the changes in the particles, designed to examine the students ability to identify the map and knowledge of the flexible use of .Considering a few examples of test questions for analysis, for readers to learn reference. , To determine the type of material Example 1 (2014 Hohhot) Chemistry is the study of matter and create substances at the atomic, molecular level.A is a cleaner fuel, known A and B under certain conditions, anti