地球上的海和洋本是连在一起的。中学《世界地理》关于四大洋、海洋水域、内海、外海、边缘海、陆间海、海湾、海峡、海底地形、海水温度和盐分、洋流系统、海上航运、海洋资源等海洋知识的叙述也都是密切相关、环丝紧扣。为了讲好这部分世界地理知识,教师要根据学生年龄特点、知识水平、智力差异,去组织教学,一般采用难点分散的方法安排章节。教师在综合海洋知识,复习阶段重点的时候,梳理海洋体系,划清四大洋属海,给学生分散知识的记忆输入新的信息,找出异同,寻求联系,加深理 The sea and the ocean are connected together on Earth. The description of marine knowledge in the secondary schools “World Geography” concerning the four major oceans, oceanic waters, inland seas, open seas, marginal seas, intercontinental seas, bays, straits, seafloor topography, seawater temperature and salinity, ocean current systems, maritime navigation, marine resources, etc. Is closely related to the ring silk tightly. In order to teach this part of the world’s geography knowledge, teachers should organize teaching according to their age characteristics, knowledge level, and intellectual differences, and generally adopt difficult and scattered methods to arrange chapters. When the teachers comprehensively study the marine knowledge and focus on the review stage, they will sort out the marine system, draw out the oceans of the four oceans, and input new information to students’ memories of dispersal of knowledge, find similarities and differences, seek contacts, and deepen understanding.