双语有声阅读：人口增长
时间：2019-02-25 作者：英语课 分类：双语有声阅读
英语课
Population Growth
The growth of population during the past few centuries is no proof that population will continue to grow straight upward toward infinity 1 and doom 2. On the contrary, demographic history offers evidence that population growth has not been at all constant. According to paleoecologist Edward Deevey, the past million years show three momentous 3 changes. The first, a rapid increase in population around one million B. C., followed the innovations of tool making and tool using.But when the new power from the use of tools has been exploited,the rate of world population growth fell and became almost stable. The next rapid jump in population started perhaps 10,000 years ago, when mankind began to keep herds,plow and plant the earth. Once again when initial productivity gains had been absorbed, the rate of population growth abated 4. These two episodes suggest that the third great change, the present rapid growth, which began in the West between 250 and 350 years ago, may also slow down when, or if, technology begins to yield fewer innovations. Of course, the current knowledge revolution may continue without foreseeable end. Either way - contrary to popular belief in constant geometric growth - population can be expected in the long run to adjust to productivity. And when one takes this view, population growth is seen to represent economic progress and human triumph rather than social failure.
人口增长
以往几个世纪人口的增长并不能证明人口会无限地直线向上增长直到毁灭的地步。 相反地，人口统计史料证明人口的增长完全不是稳定的。 古生态学家爱德华 ·狄维认为，在过去 100 万年间出现过 3 次重大的变动。 第一次在公元前 100 万年左右，随着在工具的制作和使用上的革新而出现人口迅速增长。 但当工具的使用所产生的新动力被充分利用以后，世界人口增长率下降并且趋于稳定。 第二次人口剧增大约始于人类开始蓄畜、垦耕的 10，000 年前。 一旦最初的生产力增长被吸收殆尽，人口的增长再次衰落。 以上两段说明，若技术革新的成果开始减少，从250 到350 年前就在西方开始出现的并且目前还在继续的人口迅速增长可能也会放慢。 当然，当前的知识革命也许会持续下去而无法预见其末来。 无论如何，与那种认为人口以几何级数持续增长的观点相反，从长远的观点来说，人口可望受到生产力的调节。 接受了这一观点，人口的增长就可以被看成是经济进步和人类胜利的标志，而不是社会衰败的标志。
n.无限，无穷，大量
- It is impossible to count up to infinity.不可能数到无穷大。
- Theoretically,a line can extend into infinity.从理论上来说直线可以无限地延伸。
n.厄运，劫数；v.注定，命定
- The report on our economic situation is full of doom and gloom.这份关于我们经济状况的报告充满了令人绝望和沮丧的调子。
- The dictator met his doom after ten years of rule.独裁者统治了十年终于完蛋了。
adj.重要的，重大的
- I am deeply honoured to be invited to this momentous occasion.能应邀出席如此重要的场合，我深感荣幸。
- The momentous news was that war had begun.重大的新闻是战争已经开始。