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.
相似词语辨析【36】clean和clear
相似词语辨析【79】He has a son,who is an engineer.
相似词语辨析【46】dare(普通动词)和dare(情态动词)
相似词语辨析【62】emerge和immerge
相似词语辨析【61】eligible和illegible
相似词语辨析【103】momentary,momentous
相似词语辨析【101】loaded,laden
相似词语辨析【67】exceptionable,exceptional
相似词语辨析【60】eatable和edible
相似词语辨析【71】first,firstly
相似词语辨析【56】distinct和distinctive
相似词语辨析【85】like going和like to go
相似词语辨析【100】little,small
相似词语辨析【64】English,the English
相似词语辨析【99】listen to,listen for
相似词语辨析【35】China和china
相似词语辨析【63】empty,vacant,hollow
相似词语辨析【52】disability和inability
相似词语辨析【89】in/on/to the south
相似词语辨析【82】hope,expect
相似词语辨析【57】due to和owing to
相似词语辨析【69】far,by far
相似词语辨析【80】He has been ill for ten days.
相似词语辨析【91】instructive,instructional
相似词语辨析【72】fifty dollars in notes
相似词语辨析【94】last,latest
相似词语辨析【83】however,no matter how
相似词语辨析【90】into,in to
相似词语辨析【75】hardly,scarcely
相似词语辨析【92】invaluable,valueless
| 不限 |
| 英语教案 |
| 英语课件 |
| 英语试题 |
| 不限 |
| 不限 |
| 上册 |
| 下册 |
| 不限 |