If you want to get high marks in mathematics, it is essential to do problems, but you should also pay attention to the methods. In the strengthening stage, it is suggested to do the math part of the real questions in previous years first (leave the real questions in the last three years to the final sprint model test stage), and get a general idea of what knowledge points, ways and questions will be examined in 396 mathematics, which can be eaten in combination with the real questions in the Yellow Book over the past 396 years (although you can start the brushing stage after passing the real questions). Here, I would like to recommend an invincible book that saved me-396 Source Analysis of Mathematical Problems 1000. Some of the questions in this book are more difficult than "800 questions" and the real questions after last year's reform (some of them can be omitted), but its strength is that the questions are very classic. I found these reformed questions familiar when I was in the examination room, thanks to this book. Students must make good use of it and study all the knowledge points inside. After all, preparing more problem-solving skills and ideas to form a blow to reduce the dimension will only be beneficial to the preparation of mathematics, but not harmful (maybe it will be reformed this year, and it will be prepared for a rainy day). During this time, I just want to brush the questions well, brush the book carefully for 3-4 times repeatedly, sum up many wrong questions, find out my own shortcomings from the wrong questions, and then go back to my core notes or my own notes to check for leaks and fill in gaps, so that every knowledge point can be learned by heart.