The seventh grade composition "Tree Planting Man" around me is 600 words.

Li Shan, the last man on earth, was sitting alone in his room when someone knocked at the door. Li Shan opened the door and saw an alien outside saying, "Li Shan, you should rebuild the earth." Then he disappeared. "Rebuild the Earth?" Li Shan said to herself, "The land on the earth is basically desertified. How can I rebuild the earth? Funny! " But then he thought: living in the desert all day is not an option. By the way, I can plant trees. He was very happy to think of this way, because he could get a world full of shade again.

From the beginning, he found out all the soil and seeds he cherished. The seeds were handed down by his grandfather, and the soil was handed down by his grandfather's father. He planted the seeds carefully, watered them and stayed there day and night. But a week later, Li Shan found that the pressurized water machine could not pump water because there was no water in the world. He went to his reservoir and found that he only had one cubic meter of water, so he decided to save water for the saplings and asked himself to drink only two glasses of water every day, without eating, brushing his teeth, washing his face and bathing.

As the days go by, the trees get taller and taller. The original cubic meter of soil has become a cubic meter. But there is less and less water, leaving only one cubic decimeter of water. He wanted to cry, but he watered the tree. Finally, the water was used up. Three days later, Li Shan died of thirst, and he fell to the tree. Just a second after he fell, the tree grew very big. Immediately, the sand of the whole world turned into mud again, the earth was covered by trees, flowers and plants flourished, and human beings appeared again.

Whenever I am in Tomb-Sweeping Day, people always go to the Millennium Tree to pay homage to a person, and that person is Li Shan!