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[六级大学英语阅读] 六级冲刺练习:阅读(123)

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  Even if Mexicos population reaches 125 million by the year 2010, its population density is still smaller than the 1985 population density of some 50 countries. By international standards Mexico will still not be overpopulated by the year 2010. If wealth is generated by people, the more individuals there are, the greater the wealth that potentially could be generated. Why should Mexico control its population at density levels below those of the richer countries if more population represents the possibility of generating more wealth?

  On the other hand, it is often pointed out that once sustainability limits are near or are reached, there are decreasing productivity gains , and people become a cost rather than an asset. If we assume that there are sustainability limits and that we are close to reaching these limits at a world level, then it is appropriate to check population growth.

  21. According to the passage, the population argument is focused on_______.

  A. whether more people are a property or a cost

  B. whether Mexico should control its population growth or not

  C. whether the density of population in Mexico is large or small

  D. what the standard international sustainability limit is

  22. Which of the following is TRUE according to the first paragraph?

  A. Mexico has stepped into an aging society.

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