1.引发兴趣,激发好学情感。中学生思想活跃,思维敏捷,好强逞能。教师应抓住这一特点,在教学中以“竞赛小组”、“争红花”、“夺红旗”等具有竞争性的教学游戏活动来激发学生的学习兴趣,学生有了兴趣,就会出现争先恐后、积极参与、尽力思考的场面,这样,学生就能够在紧张而又愉快的氛围中学到知识,从而达到教学的目的。2.设置疑问,引导积极参与。根据教学内容的特点,教师在教学时适当设置疑问,调动学生的求知欲望,让学 1. Arouse interest and stimulate studious feelings. Secondary students active thinking, quick thinking, strong and brave. Teachers should seize this characteristic. In teaching, they should stimulate the students’ interest in learning by such competitive teaching activities as “Competition Team ”, “Competition ”, “Red Flag ” Interest, there will be vying, actively involved, try to think of the scene, so that students can learn in a tense and pleasant atmosphere of knowledge, so as to achieve the purpose of teaching. 2. Set questions, guide the active participation. According to the characteristics of the teaching content, teachers set appropriate questions in teaching, to mobilize the students’ desire for knowledge, to learn