I think the first point is to listen carefully in class, just like you said, take notes, but try to summarize when you learn to a certain extent, because sometimes you can't think of a problem at once without summarizing it, and there is no such concept in your mind. I don't think comprehensively, I can't think of a solution at once, so I should pay attention to sorting out and summarizing! Second, because you are still a sophomore, in general, the first year of high school is to lay a foundation, the second year is to improve your ability, and the third year is comprehensive training. At that time, we must do more questions, so we should study more questions in the second year of high school, or summarize the ideas of solving problems, and then broaden our horizons, because some college entrance examination questions are based on advanced mathematics. In fact, most of those questions may be the last one of the fill-in-the-blank multiple-choice questions. It is still a minor problem of the last three major questions, and the proportion of points is still small. If you want to get high marks in high school mathematics, you must make the questions easy and do the difficult questions as well as possible, so I personally think that the difficult questions are related to the flexibility of your brain (hehe ````````), so if you want to get high marks, you should pay more attention to the foundation and improve your ability! Thirdly, I remember a sentence, always keep a research attitude when doing math problems, and don't do them just for the sake of doing them. Although it is an easy question, there will be some logic if you think about it carefully. Sometimes people just make this kind of logical mistake, which leads to some easy questions losing points. Moreover, because you are from Jiangsu, it is very difficult for us to do the college entrance examination questions in various provinces and cities in the past. Moreover, there are no multiple-choice questions, the number of questions is large, and the ability of students is very demanding. No wonder your teacher asked you to study new questions, don't try to locate your own situation. You're only a sophomore. You have plenty of time. Moreover, you can't be impetuous in learning mathematics. You should always keep your interest in mathematics and keep a cool mind. You believe that you can learn math well.
I have to add that it is not impossible to take the test 180, but don't get your hopes up, or you will be depressed because you have not reached your goal! Hehe, hard work and sureness are the only way to win! ! ! I wish you a great success in the college entrance examination!