2025MBA報考測評申請中......
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我們的工作人員會在最短時間內給予您活動安排回復。
導讀：
要求：
1.人們以為淡水是取之不盡的 (提示：雨水、河水、井水．．．)
2.實際上淡水非常緊缺的 (提示：人口增加，工業用水增加，污染．．．
3.我們應該怎么辦
問題陳述 原因分析 建議措施
參考范文
Animals are essential in an ecosystem. But for various reasons the number of animals decreases to an alarming degree. All over the world, biological diversity has already become a key environmental issue.
Scientists from many fields generally attribute this phenomenon to three reasons. To begin with, human activities reduce the number of animals. For instance, the living areas of human beings enlarge gradually while the areas for animals shrink. As a result, animals die out. Next, natural evolutions also make some animals extinct. Moreover, some diseases among animals also cut the population of animals.
How to address this issue? Two approaches have been suggested. One is that humans should protect some rare animals. The other is that human must provide animals with a sound environment for them to survive and thrive.
