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纵观近三年化学试题,主要体现以下几个特点:一、立足基础,突出主干试题对化学“必修1”“必修2”和“选修4”三个模块的核心知识和主干知识进行抽考,突出基础知识和基本技能的考查。三大反应原理(氧化还原反应、离子反应、热化学反应)、三大基本理论(平衡理论、电离理论、结构理论)、常见元素及其化合物的典型性质、常见有机物的性质、化学实验等核心知识是高考考查的重中之重。试题高度关注化学用语的考查(如化学式、离子方程式、化学
Throughout the past three years of chemical tests, the main features of the following features: First, based on the foundation, highlighting the core questions on the chemical “compulsory 1 ” “compulsory 2 ” and “elective 4 ” three core knowledge And the main knowledge of the test, highlight the basic knowledge and basic skills test. The three basic principles (redox reaction, ionic reaction, thermochemical reaction), three basic theories (equilibrium theory, ionization theory, structure theory), common elements and their typical properties of compounds, the nature of common organic matter, the core of chemical experiments Knowledge is the most important test of the college entrance examination. Test questions are highly concerned with the study of chemical terms (such as chemical formula, ion equation, chemistry