Man cannot go on increasing his number
at the present rate. In the {{U}}(56) {{/U}}30 years man will face a
period of crisis. {{U}}(57) {{/U}}experts believe that there will be a
widespread food{{U}} (58) {{/U}}Other experts think this is{{U}}
(59) {{/U}}pessimistic (悲观的), and that man can prevent things from{{U}}
(60) {{/U}}worse than they are now. But remember that two thirds of
the people in the world are under-nourished or starving now. {{U}}
(61) {{/U}}thing that man can do is to limit the{{U}} (62)
{{/U}}of babies born. The need{{U}} (63) {{/U}}this is obvious, but
it is not{{U}} (64) {{/U}}to achieve. People have to be{{U}} 65
{{/U}}to limit their families. In the countries of the population{{U}}
(66) {{/U}}, many people like big families. The parents think that
this{{U}} (67) {{/U}}a bigger income for the family and ensures there
will be someone in the family who will look{{U}} (68) {{/U}}them in old
age. Several governments have{{U}} (69) {{/U}}birth
control policies in recent years. {{U}}(70) {{/U}}them are Japan, China,
India and Egypt. In some{{U}} (71) {{/U}}the results have not been
successful. Japan has been an{{U}} (72) {{/U}}. The Japanese adopted a
birth control policy in 1948. People were{{U}} (73) {{/U}}to limit their
families. The birth{{U}} (74) {{/U}}fell from 34.3 per thousand per year
to about 17.0 per year{{U}} (75)
{{/U}}present.