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P2 Many people have recognized the importance of protecting the Yangtze River and many environmental anizations and projects have been set up. P3 Two special government projects are under way to protect the river. One is the water and soil preservation project. P4 The second project is a nature reserve for whiteflag dolphins. P5 The environmental situation of the Yangtze River is improving. 2. Analyze the structure (PPT 3031) Devide the five paragraphs into several parts. Part1 Raising the issue Part2 How to solve the issu