兴趣是学生获取知识,发挥主体性的关键。情绪随着兴趣而变化,情绪的变化与植物性神经系统的活动有直接的关系,有兴趣的活动则又能使机体的心肺机能及某些激素积极行动起来,使学生情绪高涨,精神饱满,反之则情绪低沉,精神不振。学生是学习的主体,在学习上要发挥他们的主观能动性,使求知成为他们的自觉要求,兴趣直接影响着学生主体变化, Interest is the key to a student’s acquisition of knowledge and the exertion of subjectivity. Emotions change with interest. Changes in emotions are directly related to the activities of the autonomic nervous system. Activities that are of interest also enable the body’s heart-lung function and certain hormones to take active action, so that students’ emotions are high and their spirits are full. On the contrary, the mood is low and the spirit is weak. Students are the main body of learning. They must exert their subjective initiative in learning so that seeking knowledge becomes their conscious demand, and interest directly affects the change of student body.