1. You can accumulate many words, which is helpful to write excellent compositions.
2. You can accumulate many articles and provide materials for writing.
3. You can accumulate a lot of grammar, which is conducive to communication with people and the accuracy of sentence structure in writing, avoiding many sentence structure errors and improving composition scores.
Reciting short passages every day can also improve memory ability, help to recite the contents of other subjects and improve learning efficiency.
(These are probably the benefits. If it is less, you can supplement it yourself. )