Multiple-choice questions and fill-in-the-blank questions: simplification of imaginary number (or understanding of set), three views, linear programming (filling in the blank without making a choice may sometimes be a big question (liberal arts): pay attention to the steps of doing a big question), constant establishment problem (combining inequality), judgment of line-surface relationship, finding the distance of conic (generally solved by definition), images of quadratic function and trigonometric function (testing the nature of function).

Major topics: trigonometric function (finding analytic formula, period, increasing and decreasing interval), solid geometry (proving verticality, parallelism, dihedral angle), probability (finding the probability of each event, and finally finding expectation), sequence (finding the general formula, which proves to be an arithmetic or geometric series, or finding the sum of n terms in an equality relationship (requiring the sum of column terms and dislocation subtraction), or proving that an inequality is established. There are problems in finding the increase and decrease interval and finding the extreme value), conic curve (finding the value or range of e, finding the equation of ellipse or hyperbola and its relationship with straight line, the slope of straight line, or the range of a parameter, the basic inequality must be tested when evaluating the range).

The big question I said may be more difficult. You just need to master the first few. Be sure to do the real question before the exam+see the answer analysis of the real question, which will help you a lot.

Conversion between known and problem. Sometimes what is known becomes a problem, and sometimes the problem becomes known. Change the soup without changing the medicine. Doing last year's real questions is bound to encounter similar problems.

I wish you good results in the exam!