The advantages and disadvantages of a large population have long been a subj

游客2023-07-20  8

问题     The advantages and disadvantages of a large population have long been a subject of discussion among economists. It has been argued that the supply of good land is limited. To feed a large population, inferior land must be 【B1】______and the good land worked 【B2】______. Thus, each person produces less and this means a 【B3】______average income than could be obtained with a smaller population. Other economists have argued that a large population gives more 【B4】______ for specialization and the development of 【B5】______such as ports, roads and railways, which are not likely to be built unless there is a big demand to 【B6】______them.
    One of the difficulties in carrying out a 【B7】______birth control program lies in the fact that official attitudes to population growth 【B8】______from country to country depending on the level of industrial development and the availability of food and raw materials. In the developing country where a vastly-expanded population is pressing hard upon the limits of food, space and natural resources, 【B9】______, whatever the consequences may be. In a highly-industrialized society the problem may be more complex. 【B10】______. When the pressure of population on housing declines, prices also decline and the building industry is weakened. Faced with considerations such as these, 【B11】______, rather than one which is stable or in decline. [br] 【B1】

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答案 cultivated

解析 所填词后面的and表明,其前后是并列关系,在结构上应该对称。the good land worked是一个省略了be的被动语态,故本空所填词也应该是动词的过去分词形式,并且和inferior land构成动宾搭配。To feed a large population是目的,由此目的推导出的行为应该是“耕种(cultivated)土地”。
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