[单项选择]

Text 2
The rate of population growth is fastest in underdeveloped countries. In these countries a high birth rate is accompanied by a lowered death rate thanks to improved standards of public health. Ideally it should be possible to counter balance the effect of a reduced death rate by an increased use of family planning. In practice, however, population control is a complex matter. Throughout history people have determined the size of their families ac-cording to the cultural values of their societies.
Population control has long been a subject of discussion among researchers. Some have argued that the supply of good land is limited. In order to feed a large population, bad land must be cultivated and the good land overworked. As a result, each person produces less in a given amount of time and this means a lower average income than could be obtained with a smaller population. Other researchers have argued that a large population gives more scope for the developm
A. a standstill population
B. a fast increasing population
C. a slowly growing population
D. a steadily decreasing population

[单项选择]

Text 2
The rate of population growth is fastest in underdeveloped countries. In these countries a high birth rate is accompanied by a lowered death rate thanks to improved standards of public health. Ideally it should be possible to counter balance the effect of a reduced death rate by an increased use of family planning. In practice, however, population control is a complex matter. Throughout history people have determined the size of their families ac-cording to the cultural values of their societies.
Population control has long been a subject of discussion among researchers. Some have argued that the supply of good land is limited. In order to feed a large population, bad land must be cultivated and the good land overworked. As a result, each person produces less in a given amount of time and this means a lower average income than could be obtained with a smaller population. Other researchers have argued that a large population gives more scope for the developm
A. those countries encourage people to have large families
B. people can get government support if they have more kids
C. improved public health standards have reduced death rate greatly
D. those countries have enough resources to support a large population

[填空题]The highest rate of world population growth occurred in 1970.

[单项选择]Until recently, most population growth has occurred in relatively dense urban environments. In (31) words, even if we were witnessing rapid population growth, that would not mean that the (32) were filling in with people. (33) , the urban areas would tend to become more crowded. Historically, we find that people have moved to (34) the jobs were. Jobs were usually in ports or locations with many natural (35) . After transportation became relatively cheap, other geographical locations became (36) of economic activity. One factor that determines where people will move to, even when transportation becomes cheap, is (37) . And individuals working in cities (38) higher incomes than those working in (39) areas. Hence, population has tended until the 1970s to (40) in our major urban centers.
Recently population has (41) out of the Northeast to the South and to the West for the more pleasant climates. If people di
A. profit
B. expense
C. income
D. deposit