2. 考研
  3. A. Study the following graphs carefully and write an essay in at least 150 words. B. Your essay must be written neatly on AN

A. Study the following graphs carefully and write an essay in at least 150 words. B. Your essay must be written neatly on AN

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问题     A. Study the following graphs carefully and write an essay in at least 150 words.
    B. Your essay must be written neatly on ANSWER SHEET 2. (15 points )
    C. Your essay should cover three points;
    1. effect of the country’s growing human populations on its wildlife;
    2. possible reasons for the effect;
    3. your suggestion for wildlife protection.
选项
答案 According to the graphs, along with the steady growth of the American population over the last two centuries, the number of wildlife species no longer existing rose sharply. This means population growth poses a grave risk to the existence of wildlife species. We may cite several possible reasons for this phenomenon. First of all, human beings are spreading out across the globe, setting up their homes, farms and factories on the lands that were once the habitats of many wild animals, for which a sudden change in living environment equals a catastrophe. Moreover, with the increase in human activities, water pollution occurs. Factory waste and untreated human waste are dumped into rivers and seas, killing wild animals after they regularly drink the contaminated water. Air polluted by exhaust fumes and industrial emissions is also one of the culprits of species extinction. The number of extinct wildlife species has been rising throughout the world, but only in recent years have we given it more thought and considered how to tackle it. As for the countermeasures, population control should be a top priority, followed by water and air pollution control. Last but not least, raising the awareness of wildlife conservation and environment protection counts a lot.
解析     两个图表分别以美国人口及该国野生物种为主题，左图展现了美国人口的增长曲线，右图展现了该国物种灭绝数量的增长曲线。不难看出，两者呈同向增长趋势。深入分析后可知：美国人口增加是导致该国野生物种灭绝的主要原因。人类扩张占据了野生动物的栖息地、人类活动引发了环境污染，这都是加速野生物种灭绝的因素。考生在写作时可先指出问题，继而分析原因，最后给出个人的解决建议。
    第一段：联系图表，点明主题。具体描述时应重笔墨于人口增长与野生物种灭绝之间的因果关系。
    第二段：针对问题，剖析原因。可以从栖息地破坏、环境污染等多个角度探讨人口增长导致物种灭绝的原因。
    第三段：总结评论。在第二段分析原因的基础上，提出自己的具体建议和措施。
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