Raiders 1: the concept is clear and the foundation is solid. Never ignore the most basic concepts, axioms, theorems and formulas, especially "indefinite multiple-choice questions", and distinguish right from wrong by clear concepts. If the concept is unclear, you will feel ambiguous and eventually lead to the wrong choice. Therefore, it is necessary to sort out the concepts in the four textbooks that have been learned, and deepen your impression through reading and copying, especially the concepts that are easily confused, so as not to leave hidden dangers.

Raiders 2: Do the right thing and be clever. Some students work hard, and a lot of counseling books have been done but few improvements have been made. This is the misunderstanding of doing the problem. Mathematics needs practice and a lot of questions, but we should "bury our heads in solving problems, raise our heads and think", pay attention to the ideas, methods and skills of solving problems, and "work hard" and "be clever". You can report to class for study before the exam. The winter vacation residential class of Beijing New Oriental Chinese Journal is very good for general education. Time is the most precious thing in exams. If you master good ideas, methods and skills, you can not only solve problems quickly, but also make mistakes easily.