There may be multiple versions of teaching materials for chemistry elective study in Wuzhong Senior Middle School in Ningxia, and different schools or regions may have different requirements. But generally speaking, the following textbooks may be more common:

1. PEP high school chemistry elective 1, 2,3

2. Chemical World Elective Course 1, 2, 3

3. Beijing Normal University Edition High School Chemistry Elective Course 1, 2, 3

4. Curriculum Standard Edition High School Chemistry Elective Course 1, 2, 3

The above textbooks are all approved by the Ministry of Education, covering all aspects of chemistry elective courses in senior high schools, including material structure, chemical reaction, chemical equilibrium, chemical kinetics, electrochemistry and so on. It is suggested that you choose the corresponding teaching materials to study according to the requirements of your school or region. In addition, in order to master chemistry knowledge better, we can practice exercises in combination with textbooks, participate in chemistry competitions or join chemistry interest groups to improve our interest and motivation in learning.