生物在中学阶段处于“副科”的地位,许多学生对生物科学习的重视程度不够,这就要求教师激发学生的学习动机,培养学生的学习情感,让学生乐而学之,这样才能发挥学生的学习主动性,真正动脑筋去思考,去探究新知识。联系实际,激发兴趣。妙趣横生的教学能引起学生的有意注意,便于学生的大脑皮层迅速建立适宜的兴奋灶,产生积极的思维活动,从而为传授新知识扫清心理障碍。比如在教学绪论时,教师可讲述当代生物学发展的热点问题:器官移植、基因工程、“生物导弹”、试管婴儿、仿生学、转基因食品等等,使同学 Biology in the secondary stage in the “Associate Section” status, many students pay insufficient attention to the study of biological science, which requires teachers to stimulate students 'motivation to learn, develop students' learning emotion, let the students learn music, so as to play Students learn initiative, really brains to think, to explore new knowledge. Contact with the actual, stimulate interest. Interesting teaching can arouse the students' attention, facilitate the students to quickly establish the appropriate cortex of excited cortex, to produce positive thinking activities, so as to impart new knowledge to clear the psychological barrier. For example, in the teaching introduction, teachers can tell the hot topics of contemporary biology development: organ transplantation, genetic engineering, bio-missile, IVF, bionics, genetically modified foods,