Mathematics depends on understanding. Where does understanding come from? Have to do the problem. The first model test is whether you are familiar with the knowledge points. Don't be discouraged if you don't do well in the exam, because there will be many special reviews and systematic reviews later. On the premise of mastering the basic knowledge, try to be knowledgeable about the topic and be happy when you meet new topics, because you can learn a lot. When necessary (the topic is complex but the method is fixed), you can write down the problem-solving process, which will help shorten the time. Improve memory: do it by repeatedly looking for similar questions, and write the process skillfully until you meet it (kill similar questions). There are still basic points to fill in, difficult problems to be solved selectively, and calculations not to be afraid of trouble (don't be arrogant). Analyze each test paper carefully. After all, the difficulty coefficient of the model test is not much different. Think it over, and you will understand the questioner's intention. The sea tactics are not in favor, but they are indispensable. Be hard on yourself, and you will have the last laugh.