大学阅读理解.大神帮帮忙The growth of population during the past few centuries is no proof that population will continue to grow straight upward toward infinity and doom. On the contrary, demographic history offers evidence that population

大学阅读理解.大神帮帮忙The growth of population during the past few centuries is no proof that population will continue to grow straight upward toward infinity and doom. On the contrary, demographic history offers evidence that population
大学阅读理解.大神帮帮忙
The growth of population during the past few centuries is no proof that population will continue to grow straight upward toward infinity and doom. On the contrary, demographic history offers evidence that population growth has not been at all constant. According to paleo-ecologist Edward Deevey, the past million years show three momentous 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 had 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 men began to keep herds, plow and plant the earth. Once again when initial productivity gains had been absorbed, the rate of population growth abated.
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.
1). Which of the following is NOT TRUE according to the passage?
A. Increase in population is related to productivity.
B. Population growth can not be regarded as a social failure.
C. Human population expands at a straight upward trend.
D. Population growth has shown ups and downs in demographic history.
满分：3 分
2). How many significant demographic changes ever occurred in the past one million years?
A. Three.
B. Two.
C. None.
D. One.
满分：3 分
3). What is found to have close relationship with rapid increase in population?
A. Ways discovered to increase productivity.
B. War between 2 countries.
C. Migration from a continent to another continent.
D. A new religion beginning to be accepted by people.
满分：3 分
4). What can be concluded when the current tide of knowledge revolution ebbs?
A. Population growth will become accelerated.
B. Productivity will rise.
C. Population growth will slow down.
D. Productivity will receive no impact.
满分：3 分
5). What is the concept most people have on population growth?
A. Rapid growth is followed by a decline.
B. Decelerated growth is following by a decline.
C. The population is always in constant geometric growth.
D. No growth at all.

大学阅读理解.大神帮帮忙The growth of population during the past few centuries is no proof that population will continue to grow straight upward toward infinity and doom. On the contrary, demographic history offers evidence that population
1.B 2.A 3.A 4.A 5.B