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据世界卫生组织统计,中国目前有烟民3.5亿人,每年约有100万人死于和吸烟有关的疾病。烟草已成为继高血压之后的第2号杀手。要使我国人群的吸烟率逐渐降低,必须提高人们对吸烟有害健康的认识,让每个学生自觉拒绝吸烟。本实验旨在利用课本知识和学生已有技能提高学生对烟害的认识。一、实验在教材中所处的地位与作用酶是新陈代谢全部化学反应的催化剂,酶的活性直接影响生物的生命活动。本实验能够加深学生对酶的作用和本质的认识,提高学生的实验操作技能,提高学生分享信息、分享实验成果的能力。同时,也有利于学生了解烟草的危害,从而产生对香烟的内在
According to the statistics of the World Health Organization, China currently has 350 million smokers and about 1 million people die each year from smoking-related diseases. Tobacco has become the No. 2 killer after high blood pressure. In order to gradually reduce the smoking rate of our population, we must raise awareness of the harmful effects of smoking so that every student will refuse to smoke consciously. The purpose of this experiment is to use textbook knowledge and students ’existing skills to improve students’ awareness of tobacco smoke. First, the experimental position in the textbooks and the role of enzymes is the catalyst for all the chemical reactions of metabolism, enzyme activity directly affects biological life activities. This experiment can deepen the student’s understanding of the role and nature of the enzyme, improve students ’experimental skills, improve students’ ability to share information and share experimental results. At the same time, it is also conducive to students to understand the dangers of tobacco, thus creating the inherent cigarette