有效的练习主要是指练习内容和练习形式的统一,掌握知识和培养能力的统一,练习量、练习时间和练习效率的统一。那种靠大量的反复训练让学生掌握知识的练习不是有效练习,只让学生掌握知识而忽视学生能力 Effective practice mainly refers to the practice content and practice of the form of unity, mastery of knowledge and ability to cultivate the unity of the amount of practice, practice time and practice the unity of efficiency. The kind of practice that relies on a lot of repeated training to let students master knowledge is not an effective exercise. Only students can master knowledge and ignore students’ abilities.