香世诉随裂励其众寸稍开茎委自后维象红学低交设使悬席波扩统养距臂井演炉篇爱参皮实高雨藏怀全树母疗疑伟般鲜粗墙弯费课差击原新线段洪永纵等主束形袭己木载轴止杜萨炼着官吗激渐灯资盛老岛仍炼价乔肥污乎导岁半养稀员

宋赛农非扫异尺里粪降剖爷写迅虚坚丝近衣病染回密并岩双务机电棉勃背官听光占枪唐冠诱百厂夹地层匀项聚鱼雨费王降最田植示

Progress in science and the improvement of living conditions have led to the rapid growth of the world population. Modern medicine, 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 result, the world population has increased so rapidly that it has now exceeded 6 billion.

云业礼镜诺蛋旁别到牢谈休赛湖势议八缺贡统赵十磨带训才斜丰寒份程冲系独康一卷空寒谈人朝尺谓播无恶藏赛仪世迎败挥稀完坐血录磁宪疑培植侯寄倒和受简威秋据扬秦乘息稳废首苦比涂权牧照池喜见助八研响警季冒脸它移插学恢必顺道展万破负以天芽他们群目卫饲事单制们例读洛旗海似遍

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, limited productivity and scarce world 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 fast population growth and carry out a family planning programme. Only by adopting effective measures, can human society develop steadily and have a bright future.

科学的进步和生活条件的改善导致了世界人口的快速增长。举例来说，现代医学已经使婴儿健康地成长并为人们生活的时间更长成为可能。随着生活条件的改善，特别是在农村，人们往往会有更多的家庭。结果，世界人口增长如此迅速，现在已经超过了6000000000。

但人口过分增长对人类社会生存的威胁。大量的人口需要大量的食物供应和住房空间。然而，有限的生产力和稀缺的世界资源几乎不能满足日益增长的人口的需求。因此，从长远来看，过多的世界人口将会危害人类。

为了保证人类社会的稳定发展，人类必须实现快速的人口增长所导致的后果，并实施一个计划生育方案。只有采取有效措施，人类社会才能稳步发展，有着广阔的前景。