人类住房,如同其它一切社会产品一样,都有一个从无到有,由低级到高级的发生和发展过程。 人们的居住环境状况,是一定历史条件下社会生产力和生活水平的忠实反映。何任一个时代的居住,都不可能脱离这个时代的社会经济条件而孤立存在。例如,当古人没有发明锐利的金属工具用来砍伐树木、开采石料之前,就不可能建造面积较大的房屋空间;当我国的 Human housing, like all other social products, has a process of occurrence and development from scratch, from low to high levels. The living environment of people is a faithful reflection of social productivity and living standards under certain historical conditions. Any of the residences of any era cannot be isolated from the social and economic conditions of this era. For example, when the ancients did not invent a sharp metal tool to cut down trees and mine stones, it would be impossible to build a larger space for housing; when our country