Directions:

　　A. Study the following graphs carefully and write and essay in at least 150 words.

　　B. Your essay must be written neatly on ANSWER SHEET II.

　　C. Your essay should cover these three points:

　　1. effect of the country's growing human population on its wildlife.

　　2. possible reason for the effect.

　　3. your suggestion for wildlife protection.

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美國(guó)人口急速增長(zhǎng)

　　THE UPS AND DOWNS OF POPULATION GROWTH

　　The two charts show that the increase in the U.S. population has been accompanied by a corresponding decline in the number of wildlife species. Far too many species have been lost already. This poses a danger to ecological balance.

　　As the human population expands, more and more wild animals are hunted for food, because they are thought to present a threat to man. But studies show that one of the primary causes of the disappearance of wildlife is pollution, which is one of the consequences of population growth and economic development. This makes us wonder if man is able to share this planet in harmony with other life forms.

　　In my opinion, it is imperative to take steps to reverse the disturbing trend illustrated in the charts. One measure would be to forbid the building of cities in areas where wild life is threatened with extinction. But, more importantly, man must learn to stop polluting the environment, or he himself will become extinct.