Politics, history, geography, biology. Politics, history, geography and biology are taken in the second day of junior high school, among which biology and geography are taken in the second day of junior high school, but make-up exams are required, and test scores in some areas are included in the total score of senior high school entrance examination. The second grade refers to the second grade of junior high school, and the eighth grade in nine-year compulsory education can also be called the second grade.