近年来,化学试卷中,计算填空题的量有很大幅度的增长。这类题,值得注意,表面看来是一个小空,但实质上,一个小空就是一道计算题。如果还按常规,一步不拉地进行计算,时间就不够了。那么,如何提高学生做这类题的能力呢?除了有扎实的基础知识之外,那就要在解题方法上下功夫。下面谈几例我在这方面的一点做法。 In recent years, the volume of calculations for filling in blanks has increased significantly in chemical papers. This kind of question is worth noting. It appears to be a small space on the surface, but in essence, a small space is a calculation problem. If you continue to do calculations in the usual way, the time is not enough. So, how to improve the students’ ability to do such questions? In addition to solid basic knowledge, it is necessary to work hard on solving problems. Here are some examples of my approach in this area.