Man cannot go on increasing his number at the present rate. In the 【B1】 30 years man will face a period of crisis. 【B2】experts believe that there will be a widespread food 【B3】 . Other experts think this is 【B4】 pessimistic (悲观 的),and that man can prevent things from 【B5】worse than they are now. But remember that two thirds of the people in the world are under-nourished or starving now.
【B6】 thing that man can do is to limit the 【B7】 of babies bom. The need 【B8】 this is obvious, but it is not 【B9】to achieve. People have to be 【B10】to limit their families. In the countries of the population 【B11】,many people like big families. The parents think that this 【B12】 bigger income for the family and ensures there will be someone in the family who will look 【B13】 them in old age.
Several governments have 【B14】birth control policies in recent years. 【B15】them are Japan, China, India and Egypt. In some 【B16】the results have not been successful. Japan has been an 【B17】The Japanese adopted a birth control policy in 1948. People were 【B18】 to limit their families. The birth 【B19】fell from 34.3 per thousand per year to about 17.0 per year 【B20】 present.
【B1】
A.second
B.recent
C.next
D.late
为了保护您的账号安全,请在“上学吧”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!