First of all, we visited the water conservancy history and culture of the Chinese nation. Then I saw the origin of Dayu's water control. Through the efforts of Dayu in 13, they opened up countless mountains and built countless dams, and finally led the river water to the sea. Then we also saw the introduction of Dujiangyan large-scale water conservancy project, which was built around 256 BC and is the only water conservancy project with the longest preservation time in the world without building a dam to take water. Finally, we climbed to the top of the tower, which made me feel the harmony between man and water. By explaining my aunt's explanation, I understand that although the earth is rich in water, seawater accounts for most of it, and land fresh water only accounts for 2. 8%, what is more worrying is that these limited quantities of fresh water are being polluted more and more. Human activities will cause a large number of industrial, agricultural and domestic wastes to be discharged into water bodies and pollute them.
Water is the foundation of life, which not only relates to the quality of human life, but also affects human survival ability. We must enhance the awareness of water crisis, cherish water, save water and protect water resources.