It was Sunday yesterday. The weather was fine. It was sunny and there were no clouds in the sky. Sandy and Sue got up early in the morning. Now they were in the park. It is a big park and it's so beautiful. They saw many people there. Some boys played football on the grass. Some girls danced under the tree. An old man walked beside the lake. A young woman and her little son looked at the fish in the lake. How happy they are!

    洞庭湖是长江水系的一个重要组成部分．它除了接纳我省境内湘、资水、沅江、澧水的来水外，还通过连接长江干流和洞庭湖的松滋河、虎渡河、藕池河等处接纳长江来水，再从城陵矶注入长江（如洞庭湖与长江连通关系图所示）