The division is as follows:
1. The first part (the first four sentences): The theme is clear and directly points out the theme of the poem, which is to encourage people to study diligently.
2. Part 2 (sentences 5 to 14): Specifically discuss the benefits of reading, including that reading can cultivate your temperament, reading can broaden your horizons, reading can increase your intelligence, and reading can enrich your life experience. wait.
3. The third part (sentences 15 to 20): It puts forward specific methods of encouraging students to learn, that is, to have perseverance, perseverance, goals, methods, and Have the determination to persevere.
4. The fourth part (last two sentences): As the end of the whole poem, it once again emphasizes the importance of diligent study and expresses wishes for readers.