在高考化学试题中,1983年开始出现物质制备题,此后一直成为高考化学命题中的传统题型。 物质制备题的知识综合程度高,难度较大,理论联系实际紧密,能有效地考查学生对元素及其化合物知识和烃及其衍生物转化关系掌握的程度,将知识迁移到生产的运用能力。 In the chemistry test questions for college entrance examinations, material preparation questions began to appear in 1983 and have since become the traditional question type in chemical propositions for college entrance examinations. The knowledge of substance preparation questions has a high degree of comprehensiveness and difficulty, and the theory is closely related to reality. It can effectively examine students’ knowledge of elements and their compound knowledge and the degree of conversion of hydrocarbons and their derivatives, and transfer knowledge to the ability to use production.