In the text Diving, by describing the "calm" environment, the readers can feel the tranquility and stability of the surrounding environment when diving, which helps to create a calm and safe diving atmosphere and enhance the readers 'sense of security and trust. At the same time, this kind of environment description can also help the readers better understand the diving scene described by the author. By describing the calm water, the author can let the readers imagine the calm and stability of the water surface when diving, so as to have a deeper understanding of the special environment and skills required for diving. The description of environment is very important in literary works. It can help readers better understand the background and plot of the work and enhance the appeal and legibility of the work.