周末大家一起来练练复合式听写吧，本人感觉这部分是听力里比较难的部分，需多多练习啊。（做密探的基础要扎实嘛，嘻嘻~~~）
下载
The advantages and disadvantages of a large population have long been a subject of discussion among economists.It has neem argued that the supply of good land is limited.To feed a large population,inferior land must be (36)___ and the good land worked (37)__.Thus,each person produces less and this means a (38)___ average income than could be obtained with a smaller population.Other economists have argued that a large population gives more (39)__ for specialization and the development of (40)___ such as ports,roads and railways,which are not likely to be built unless there is a big demand to (41)__ them.
One of the difficulties in carrying out a (42)__ birth control program lies in the fact that offical attitudes to population growth (43)__ from country tp 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,(44)___________,whatever the consequences may be.In a highly industrailized society the problem may be more complex.(45)__________________.When the pressure of population on housing declines,prices also decline and the building industry is weakened.Faced with considerations such as these,(46)________________,rather than one which is stable or in decline.
欢迎大家订阅我的节目：
posted @ 2007-05-26 19:51
RAY！ 阅读(399)
评论(0) 编辑 收藏 所属分类:
听力密探007 网摘收藏