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浅海生态系统为水深6～2000米左右的大陆架范围。我们前面讲过，水深小于6米的属于湿地生态系统。()

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SECTION B NOTE-WRITING (10 MIN)
Write on ANSWER SHEET THREE a note of about 50-60 words based on the following situation.
Your good friend, John, is thinking of organizing an end-of-the-term party. Write him a note telling him that you like his idea and offer to help him. You have to be specific about how you can help him.
Marks will be awarded for content, organization, grammar and appropriateness.

海洋是一个容纳热量的储存库，冬天海水把热量储存起来，到了夏天，海水又把热量释放出来。所以，海洋对整个大气圈具有重要的调节作用。()

海洋约占地球表面积的71%，是地球生物最大的栖息生存空间，人类的未来取决于海洋，海洋的价值是无法估量的。()

中国河流众多，水系庞大而复杂。目前，流域面积在10000平方公里以上的有2221条。()