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初中短篇英语美文篇1

Population Growth

The growth of population during the past few centuries is no proof that population willcontinue to grow straight upward toward infinity and doom. On the contrary, demographichistory offers evidence that population growth has not been at all constant. According topaleoecologist Edward Deevey, the past million years show three momentous changes. Thefirst, a rapid increase in population around one million B. C., followed the innovations of toolmaking and tool using.But when the new power from the use of tools has been exploited,therate of world population growth fell and became almost stable. The next rapid jump inpopulation started perhaps 10,000 years ago, when mankind began to keep herds,plow andplant the earth. Once again when initial productivity gains had been absorbed, the rate ofpopulation growth abated. These two episodes suggest that the third great change, thepresent rapid growth, which began in the West between 250 and 350 years ago, may also slowdown when, or if, technology begins to yield fewer innovations. Of course, the currentknowledge revolution may continue without foreseeable end. Either way - contrary topopular belief in constant geometric growth - population can be expected in the long run toadjust to productivity. And when one takes this view, population growth is seen to representeconomic progress and human triumph rather than social failure.

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