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名师指要近几年,元素化合物的知识在高考题中的直接考查越来越少,看似好像比重在减少,但如果仔细研究高考试题就会发现,高考题对元素及其化合物的要求在增加,它更加注重对知识本身的理解深度,更加注重知识的迁移,更加注重与生活生产实际的联系,所以考生对元素化合物的复习就不能是只知道知识本身,更要求能运用化学原理加以解释,并且能进行合理、准确、快速的迁移。在复习中,考生一定要抓住每种元素的特征,了解本质,快速对号解答。以硫及其化合物为例,说明复习的要点及如下方法:
In recent years, the knowledge of elemental compounds in the entrance exam question direct examination less and less, seemingly seem to reduce the proportion, but if you carefully study the entrance exam will find that the college entrance examination of the elements and their compounds in the Increase its emphasis on the depth of understanding of knowledge itself, pay more attention to the transfer of knowledge, and pay more attention to the actual contact with the production of life, so candidates review of elemental compounds can not only know the knowledge itself, but also requires the use of chemical principles to explain , And can carry out a reasonable, accurate and rapid migration. In the review, candidates must grasp the characteristics of each element, to understand the nature of rapid answers to the number. Take sulfur and its compounds as an example to illustrate the main points of review and the following methods: