progress in science and the improvement of living conditions have led m the rapidgrowth of the world population. modern medical science, for example, has made it possible for babies to grow up healthily and for people to live longer.
with improved living conditions, particularly in the countryside, people tend to have larger families. as a resuit, the world population has increased so rapidly that it has now exceeded 5 billion.
but the overgrowth of population presents a threat to the existence of human society. a large population demands a great deal of food supply and shelter space. however,the limited productivity and scarce natural resources can hardly meet the needs of the ever-increasing population. thus in the long run, the overgrowth of the world population will only harm mankind.
to guarantee the steady development of human society, mankind must realize the consequences resulting from a fast population growth and the importance of carrying out a family planning programme. only by adopting effectual measures can human society de velop steadily and have a bright future.
英文譯文：
科學的進步和生活條件的改善導致了世界人口的迅速增長。譬如，現代醫學可以使幼兒健康成長，使人們長壽。由於生活條件的改善，特別是農村生活條件的改善，家庭人門日漸增多。結果，世界人口增長如此迅猛以致於現在人口超過了50億。
但是，人口過分增長對人類社會的存在構成了威脅。大量的人口需要大批的糧食供給和大量的住宅。然而，有限的生產能力和不足的自然資源幾乎不能滿足日益增長的人口的需要。因此，從長遠的觀點看，過多的世界人口將會危害人類。
為了保證人類社會的穩定發展，人類必須意識到人口迅速增長所造成的後果和執行計畫生育方針的重要性。只有採取有效措施，人類社會才能穩步發展，才會有光明的未來。