【考点解读】海洋资源的种类、开发利用的特点和现状是高考考查重点。随着社会的发展,海洋资源的开发对人类的意义越来越大;随着科技的发展,海洋资源开发的广度和深度不断拓展。因此,对海洋资源开发中有关知识的考查是高考命题的大方向。(一)海水资源1.特点:量大,淡化成本高。2.开发利用的现状(1)海水淡化:已进入商业化生产阶段,淡化水已成为一些国家主要的或惟一的淡水来源。(2)海水直接利用:以海水直接代替淡水作为工农业用水和生活用水。缓解工农业用水和生活用水紧张状况,可用于工业(沿海工业冷却水)、生活(公厕冲洗、消防用水)、农业(低盐度海水直接灌溉某些农作物如:西 [Interpretation of the test center] The types of marine resources, development and utilization of the characteristics and status of the college entrance examination test focus. With the development of society, the development of marine resources has an increasingly great significance to mankind. With the development of science and technology, the breadth and depth of marine resources development have been constantly expanded. Therefore, the development of marine resources in the knowledge of the test is the general direction of college entrance examination proposition. (A) sea water 1. Features: large quantities, desalination costs high. 2. Status of Development and Utilization (1) Desalination of seawater: Has entered the commercial production stage, desalinated water has become the main or only freshwater source in some countries. (2) The direct use of seawater: direct replacement of fresh water with seawater as industrial and agricultural water and domestic water. Ease of industrial and agricultural water and domestic water stress, can be used for industrial (coastal industrial cooling water), life (toilet flushing, fire water), agriculture (low salinity seawater direct irrigation of certain crops such as: West