2. Algebraic expressions and their operations.

3. Fraction and its operation

4. Equations and equations

5. Inequality (group)

6. Quadratic radical and its operation

7. Function (linear function, inverse proportional function, quadratic function)-one of the most difficult points in the senior high school entrance examination.

8. Triangle (congruence, special triangle, similarity)-the key and difficult point of the senior high school entrance examination.

9. The basic nature of the circle and the positional relationship related to the circle-the focus of the senior high school entrance examination.

10. Statistical preliminary and probability problems

1 1. Parallel lines, parallelograms, quadrilaterals and special parallelograms

12. Graphic transformation and view problems