“物质的变化和性质”是中考化学的基础性考题,可以说年年考、处处考,但近几年的该知识点考题已经走出了课本,更多地与人们的日常生活、社会发展、工农业生产相联系,体现了学以致用的教学原则,现结合2006年中考化学试题解析如下: “Material change and nature” is the basic exam question in the chemistry of senior high school entrance examination. It can be said that the examination questions have passed the textbook year after year. However, in recent years, the topic of knowledge has gone out of the textbook, and more people’s daily life, social development, The link between industrial and agricultural production embodies the teaching principle of applying knowledge to practice. Now the analysis of the chemical test questions of the 2006 middle school entrance examination is as follows: