It is not so much the actual population of the world but its rate of increase which is important. It works out to be about 1. 6 per cent per annum net increase. In terms of numbers this means something like forty to fifty-five million additional people every year. Canada has a population of twenty million rather less than six months climb in the world population. Take Australia. There are ten million people in Australia. So, it, takes the world less than three months to add to itself a population which peoples that vast country. Let us take our own crowded countryEngland and Wales: forty-five to fifty million peoplejust about a years supply.
By this time tomorrow, and every day, there will be added to the earth about 120,000 extra peoplejust about the population of the city of York.
I am not talking about birth rate. This is net increase. To give you some idea of birth rate, look at the seconds hand of your watch. Every second three babies are born somewhere in the world. Another baby! Another baby! Another baby! You cannot speak quickly enough to keep pace with the birth rate.
This enormous increase of population will create immense problems. By A. D. 2000, unless something desperate happens, there will be as many as 7,000,000,000 people on the surface of this earth! So this is a problem which you are going to see in your lifetime.
Why is this enormous increase in population taking place? It is really due to the spread of the knowledge and the practice of what is coming to be called Death Control. You have heard of Birth Control? Death Control is something rather different. Death Control recognizes the work of the doctors and the nurses and the hospitals and the health services in keeping alive people who, a few years ago, would have died of some of the incredibly serious killing diseases, as they used to be. Squalid conditions, which we can remedy by an improved standard of living, caused a lot of disease and dirt. Medical examinations at school catch diseases early and ensure healthier school children. Scientists are at work stamping out malaria and other more deadly diseases. If you are seriously ill there is an ambulance to take you to a modern hospital. Medical care helps to keep people alive longer. We used to think seventy was a good age; now eighty, ninety, it may be, are coming to be recognized as a normal age for human beings. People are living longer because of the Death Control, and fewer children are dying, so the population of the world is shooting up.
南开大学“知行南开”:提升研究生创新能力计划
考研英语词汇练习一
2015考研英语词汇复习计划第二十二天
2015考研英语词汇复习计划第二天
2015考研英语词汇复习计划第三天
2015考研英语词汇复习计划第三十八天
2015考研英语词汇复习计划第三十五天
2015考研英语词汇复习计划第十三天
2015考研英语词汇复习计划第二十三天
考研英语:必知的背单词好方法
2015考研英语词汇复习计划第十二天
考研英语 三大原则 掌握单词
2015考研英语词汇复习计划第二十四天
考研英语词汇练习二
2015考研英语词汇复习计划第三十一天
考研英语图画作文:考研语法
2015考研英语词汇复习计划第十八天
考研英语冲刺阶段:单词记忆
考研英语词汇练习七
2015考研英语词汇复习计划第二十八天
考研英语:图表写作套句精选
考研英语词汇练习六
2015考研英语词汇复习计划第三十四天
2015考研英语词汇复习计划第六天
考研英语词汇练习八
2015考研英语词汇复习计划第三十天
2015考研英语词汇复习计划第十天
考研英语复习方法:二次复习词汇和作文
2015考研英语词汇复习计划第二十九天
2015考研英语词汇复习计划第十九天
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |