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人口增长类
(1)1999年真题。Directions:
Study the following set of pictures carefully and write an essay in no less than 150 words.
Your essay must be written clearly on ANSWER SHEET 2.
Your essay should cover all the information provided and meet the requirements below:
1. Effect of the country’s growing human population on its wildlife
2. Possible reason for the effect.
3. Your suggestion for wildlife protection.
真题分析：
本题为多年来考研作文短文题目中仅有的一道纯图表题目。图中只给出了一大一小两幅简单的线形图，要求考生分析两幅图之间的关系，总结出题目的主题和内涵。
针对本题，我们所要做的第一步是仔细阅读图中的文字说明和数据，特别注意数据的变化趋势。但是，在文章中切忌简单罗列所有数据，不仅会使文章无端地增加长度，还会使考官无法抓住文章主题。对于数据的处理一般都是进行概括分析，仅举几个典型的数据为例来说明问题。
第一幅线形图中，美国人口在1800年至1980年至短短200年之间增长了近250倍，而从1700年至1900年200年间美国的生物灭绝速度却增加了70倍。人口增长的速度和物种灭绝的速度正好成正比。由此可以推断，题目要求考生认清这两者之间的关系，认识到人口的增长和扩展严重威胁到了物种的生存，从而要求考生在文章中分析问题产生的原因，提出解决方案。
思路拓展：
人口的失控增长是近几十年来全球的热点话题之一。人口的扩张不是一个简单的问题，而是涉及空间、资源控制、生态平衡、环境污染、经济发展、社会保障和福利等等一系列、全方位涉及到人类在地球上生存和发展的问题。当今世界上的许多疾病、矛盾、甚至是战争，都是由于人口爆炸而引起的。此外，人口问题还涉及到人口质量、身体健康、性别比例、人口增长与财富分配、老龄化等常见话题。考生可以在平时的新闻报道中找到足够的信息，而可以多找一些报纸杂志上的评论文章上阅读，为自己积累论点和论据等。
范文：
Currently, there is a widespread concern about the previously neglected connection between growing human population and decreasing wild species. As the two graphs obviously portrayed, American population in 1980 was 250 times than that in 1800, a trend accompanied by the extinction of nearly 70 kinds of wildlife in the past 300 years. A clear correlation is suggested that mankind has exerted a tremendously negative influence on natural species.
There are many factors responsible for the aforementioned tendency. First and foremost, to satisfy the space demand for the booming population, the only available solution for Americans is to take occupation of forests and grassland. that used to be habitat of wild animals and plants. Furthermore, the process of industrialization and urbanization has generated severe pollution that essentially destroys environment and ecosystem.
In my point of view, the dearth of wildlife today forecasts an unpromising future for humans tomorrow. In order to eliminate species extinction, relevant laws and regulations must be established and enforced to maintain a large portion of unspoiled areas. Effective measures should also be applied to ensure that the impact of pollution be removed.
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