一、狠抓基础，全面复习知识和能力是紧密联系的：知识是能力的基础，能力是知识的具体运用。如化学式的计算、化学方程式的书写、元素化合物知识等。因此，对于化学的学习，有必要大声呼吁，要从基础抓起，要全面复习，绝不能猜题押宝，也不要好高鹜远去攻难题、怪题，那样只 First, pay close attention to the basics, a comprehensive review of knowledge and capabilities are closely linked: knowledge is the basis of ability, ability is the specific use of knowledge. Such as the calculation of chemical formulas, the writing of chemical equations, knowledge of elemental compounds, etc. Therefore, for the study of chemistry, it is necessary to make a loud appeal. We must start with the basics and review it thoroughly. We must not guess the question and bet on it, nor should we be far away from attacking puzzles and strange questions.