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  3. The world has developed into a world of cities. With the current rate of urban growth (3. 8% in tile Third World), the major par

The world has developed into a world of cities. With the current rate of urban growth (3. 8% in tile Third World), the major par

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问题    The world has developed into a world of cities. With the current rate of urban growth (3. 8% in tile Third World), the major part of the population of the world will be living in cities by the year 2000. This will transform the rural-urban equation which has marked the history of mankind up to now and will call for new examples and a great deal of innovation to face this phenomenon.
   This being so, one must accept the fact that for some years to come, no policy will be able to stop or reverse the present migratory trends from the rural areas to the cities in the Third World. In Africa, the urban population will reach 330 million people by the end of the century as against 150 million in 1986.
   The number of people living in shanty towns will inevitably increase despite the efforts to improve housing conditions. Africa alone needs to build twelve million housing units between now and the year 2000 to meet its most basic needs. In an ILO study, M. S. V. Sethuraman estimates That in 70 Third World cities the proportion of people living in shanty towns varies from 15% to 70% and that about US $ 116 billion are needed to give minimum comfort to these people by the turn of the century--less than US $ 10 billion per year.
   The world population is growing at a rate of about 90 million people per year, with the Third World accounting for 80 million of them. The pressure on cities can only go on increasing. The urban population of the developing countries will exceed two billion people by the year 2000 and since the main factor for the high demographic growth is poverty, the rest population will be mostly made of people of very limited means.
The mankind should face the phenomenon that the world has become a world of cities with ______.
选项 A、a lot of difficulties
B、efforts to improve housing condition
C、pressure of the basic needs
D、new models and a great deal of transformation of ideas and methods
答案D
解析 由第一段最后一句可知答案。
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