随着素质教育的逐步实施，培养学生学习兴趣，激发求知欲，变被动学习为主动学习，开展愉快教学，减轻学生负担，已成为当前教学改革的一项重要内容。所谓愉快教学法就是根据学科特点和内容，结合学生心理特征和知识水平，设计愉快的教学情境，使学生以宽松的心情轻松地学... With the gradual implementation of quality education, cultivating students’ interest in learning, inciting curiosity, changing passive learning to active learning, carrying out pleasant teaching and reducing student burden have become an important part of current teaching reform. The so-called happy teaching method is based on the characteristics and content of the discipline, combined with the students’ psychological characteristics and knowledge level, to design a pleasant teaching situation, so that students can easily learn with a relaxed mood...