一、落实重点、构建完整知识网络高三下学期第二阶段复习主要任务就是要结合《考试大纲》,将大纲中的各个考点知识题目化,热点知识明朗化、重点化,而此阶段复习办法是多做高考题。据统计,近3年高考化学90%的知识为:氧化还原反应、离子方程式、离子大量共存、阿伏加德罗常数的正误判断、反应热及热化学方程式、电解质溶液中离子浓度大小判断比较、原子结构、元素的“位-构-性”、化学键和分子结构、晶体类型、元素周期律和元素周期表、化学反应速率、化学平衡、电离平衡、盐类水解、电化学(原电池原理应用、电解原理应用 First, the implementation of the key points to build a complete knowledge network The third phase of the second phase of the review The main task is to combine the “syllabus”, the outline of the test knowledge of each test subject, the hot point of knowledge clear, focused, and this stage review method is Do more college entrance examination questions. According to statistics, 90% of the knowledge of entrance examination chemistry in recent 3 years is: redox reaction, ion equation, mass coexistence of ions, positive and false judgment of Avogadro’s constant, reaction heat and thermochemical equation, judgment of ion concentration in electrolyte solution , Atomic structure, elemental structure, chemical bond and molecular structure, crystal type, elemental periodicity and periodic table, chemical reaction rate, chemical equilibrium, ionization equilibrium, salt hydrolysis, electrochemistry Battery principle application, electrolysis principle application