2。 Be familiar with nature. Knowing what kind of relationship can lead to what kind of conclusion.

3。 Know what the topic requires you to prove, and you only need to prove this conclusion, and push it to the known conditions bit by bit.

4。 If you really can't figure it out, try to disprove the evidence and push the contradiction.

5。 Always look at other people's problem-solving ideas, the problem-solving methods should not be limited, and the ideas should be broad.

6。 That's what I did. It's been more than a month since the school started 1 month, and I have taken the exam many times, but I still haven't fallen behind 140.

7。 No, understanding the train of thought is the most important. After understanding, do it again by yourself later. If you do, you can basically solve this kind of problem.

8。 I won't. Ask me. I'm glad to discuss it with you. I am also a sophomore this year.