1．科學(xué)的進步和生活條件的改善導(dǎo)致了世界人口的迅速增加。
2．但是人口過分增長會對人類社會的存在構(gòu)成威脅。
3．為了保證人類社會的穩(wěn)定發(fā)展。
Progress in science and the improvement of living conditions have led m the rapid growth of the world population. Modern medical science, for example, has made it possible
科學(xué)的進步和生活條件的改善導(dǎo)致了世界人口的迅速增長。譬如，現(xiàn)代醫(yī)學(xué)可以使幼兒健康成長，使人們長壽。由于生活條件的改善，特別是農(nóng)村生活條件的改善，家庭人門日漸增多。結(jié)果，世界人口增長如此迅猛以致于現(xiàn)在人口超過了50億。
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 result, 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.
但是，人口過分增長對人類社會的存在構(gòu)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(chǎn)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�？刂迫丝�
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 develop steadily and have a bright future.
為了保證人類社會的穩(wěn)定發(fā)展，人類必須意識到人口迅速增長所造成的后果和執(zhí)行計劃生育方針的重要性。只有采取有效措施，人類社會才能穩(wěn)步發(fā)展，才會有光明的未來。
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