1, the overall level of students: the performance and achievements of students in the senior high school entrance examination are important factors in determining the enrollment rate. If the overall level of students is relatively low, it will lead to a decline in the enrollment rate.

2. Teaching quality: The teaching quality of the school has an important impact on students' academic performance and senior high school entrance examination results. If the teaching quality is not high, it is difficult for students to obtain good learning results and prepare for the exam adequately.

3. Educational resources: The allocation of educational resources around the school will also have an impact on students. If the school is located in a poor educational environment and limited educational resources, it will cause problems for students' study and preparation.

4. Fierce competition in exams: In some areas, the competition for senior high school entrance examinations is fierce. In a limited number of places, the competition among students is fierce, resulting in a low overall enrollment rate.