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一、问题的提出1987年2月国家教委正式颁布执行的《全日制中学生物学教学大纲》指出:“选取生态学知识可以使学生初步认识生物与其环境之间的相互关系,保持生态平衡,防止环境污染和保护动植物资源的重大意义,并且受到爱国主义思想教育.”但从目前生物学的现状看,在初中阶段对这方面知识的教学往往有所忽视.我国的实际情况是,在相当的一段时间内,大多数初中毕业生不能升高中而将直接进入社会参加生
First, the issue put forward in February 1987 State Education Commission formally promulgated the “full-time secondary school biology syllabus” pointed out: “Select the ecological knowledge can enable students to initially understand the relationship between biological and its environment, maintain ecological balance, Prevention of environmental pollution and the protection of animal and plant resources, and is subject to patriotic ideological education. ”However, from the current state of biology, teaching in the junior middle school tends to be neglected in this respect.Our country’s actual situation is that, For a considerable period of time, most junior middle school graduates will not be able to ascend but will enter the society directly