随着材料科学的发展,近几年的化学高考试题中,对材料方面的知识越来越关注.硅是无机非金属材料的主角.硅、二氧化硅的性质和用途已成为高考考查的重点内容.近年来,将基本概念、基本理论与元素化合物知识糅合在一起,进行学科内知识综合考查已成为命题的方向,以考查学 With the development of materials science, in recent years, the chemical college entrance examination questions, more and more attention to the knowledge of materials. Silicon is the protagonist of inorganic non-metallic materials. The nature and use of silicon, silicon dioxide has become the focus of the college entrance examination Content.In recent years, the basic concepts, basic theory and elemental compound knowledge together, to conduct a comprehensive examination of knowledge within the subject has become the direction of the proposition,