今天,世界人口已突破64亿。人口在不断增长,人均面积不断减少,从而出现人类居住空间减小、生活质量下降等问题。因而解决人、地之间的矛盾已是当务之急。在地理课上,我知道了:陆地面积占地球表面积的29%,而海洋占了地球表面积的71%。这是一个多么大的差距。当时,我突然产生一个 Today, the world population has exceeded 6.4 billion. As the population continues to grow, the per capita area continues to decrease, resulting in problems such as a decrease in human living space and a decline in the quality of life. Therefore, the solution to the contradiction between man and land is an urgent matter. In geography class, I know: land area accounts for 29% of the earth’s surface area, and the ocean accounts for 71% of the earth’s surface area. This is a big gap. At the time, I suddenly produced a