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  3. Nowadays, with the developments of science and technology, the population is increasing quickly. The increase of population caus

Nowadays, with the developments of science and technology, the population is increasing quickly. The increase of population caus

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问题    Nowadays, with the developments of science and technology, the population is increasing quickly. The increase of population causes some problems. The whole world is faced with such a problem and the problems caused by it. What do you think of it? Show your opinion and write an article of about 400 words on the following topic:
   Population Control
   In the first part of your writing you should present your thesis statement, and in the second part you should support the thesis statement with appropriate details. In the last part you should bring what you have written to a natural conclusion with a summary.
   Marks will be awarded for content, organization, grammar and appropriateness. Failure to follow the above instructions may result in a loss of marks.
   Write your essay on the ANSWER SHEET.
选项
答案 Population Control 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, and according to the United Nations, the population of earth is expected to grow to around 7.9 billion by 2050. In a world that currently wrestles with such serious problems as global warming, the thinning of the ozone layer, increasing crime rates, toxic chemicals in our food, and starvation in developing nations, each of which is at least partially due to growing world population, it’ s hard to imagine anyone opposing restraints on population controls. Mexico City, for example, is clearly overcrowded. Land is too expensive for any but a handful of wealthy people to own, food is relatively scarce, and economic opportunities are few and far between. The result is that pollution, crime rates, and the incidence of disease are very high, and much of the population lives in shacks. Overcrowding can be eased by changing some of the variables. For example, one symptom of the disorder, traffic congestion, can be eased by building new roads. Space permitting, the area can be expanded, such as in Hong Kong, where much of the harbor has been filled in for the construction of housing, airports, and hotels. Overpopulation, on the other hand, occurs when there are so many individuals in an isolated area---one in which the population must subsist on their own resources--that the resources necessary to their survival become depleted at a rate faster than those resources can be replenished and when the waste generated by the population exceeds the ability to dispose of it faster than it is created. 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 program. Only by adopting effective measures, can human society develop steadily and have a bright future.
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