2. Mathematics: The content of investigation is reduced. In the 4 series of mathematics elective courses, the lecture on geometry proof was deleted. The final choice of college entrance examination can only choose polar coordinate equation or inequality.
3.L 1: There is no obvious change.
4. Physics: Elective courses 3-5 were changed from elective courses to compulsory courses, which increased the content and difficulty of the exam.
5. Chemistry: The investigation of Elective Chemistry 3 and Elective Chemistry 2 was removed, and the combination of chemical process and reaction principle was emphasized.
6. Biology: Elective 3: Increase the investigation of PCR technology.