Since it is a documentary, it is required to truly reflect the current social situation, regardless of beauty and ugliness. However, classmates, I suggest that it is better to be positive. A documentary about people should have a beginning but not necessarily an end, because the protagonist's life is continuous, and we just recorded his life for a period of time. But things should be recorded from beginning to end. Of course, it also depends on how you choose the topic.

Theme: Energy saving and emission reduction (that is, reducing pollution) mainly records automobile exhaust pollution and industrial pollution. Expression: lens 1 The fresh air and birds singing in the clear sky in the morning exercise people's relaxation and health in the morning. Now switch to the scene of morning rush hour congestion, long queues, harsh horns and black exhaust. Lens 2: Primary school students are doing exercises between classes, and not far away, the factory chimneys are towering into the sky, trying to emit black smoke into the sky. By the river, grandfathers are playing cards and fishing. While turning the corner, a large amount of domestic sewage flows into this clear river. Scene 3 ends with children playing on the grass with subtitles to emphasize the importance of energy saving and emission reduction. Of course, this is only my personal opinion, and there are still many shortcomings. I hope it helps you.