要使学生正确、深刻理解化学基本概念,就必须重视化学用语的准确性。一九八二年秋季开始使用的初中化学新课本,对试用本中几个化学定义的描述作了细微而又十分必要的修改,值得我们每个教师重视并予以认真的体会。 1.关于化学变化的特征。试用本讲:“化学变化的特征是生成了新的物质。但(注:着重号是作者加 To enable students to correctly and profoundly understand the basic concepts of chemistry, we must pay attention to the accuracy of chemical terms. The new textbook for junior high school chemistry, which began to be used in the fall of 1982, made subtle and necessary changes to the description of several chemical definitions in the trial. It is worth our attention and attention for each teacher. 1. About the characteristics of chemical changes. Try this lecture: "The chemical change is characterized by the generation of new substances. But (Note: The emphasis is on the author plus