Geometry mainly has the following points: 1, which you should be familiar with. 2. The translation, rotation and axial symmetry of the graphics examine your spatial imagination and do more problems. 3. Know how to prove the congruence and similarity of triangles, pay attention to the complete process and strict steps, and recite five methods to prove the congruence of triangles and four methods to prove similarity; There are also isosceles triangle, right triangle, golden triangle and other properties, which will be of great help in the proof. 4. Quadrilateral, master the concepts of parallelogram, rectangle, square, diamond and trapezoid, make a big fuss about their subtle differences in the selection, pay attention to their judgments and properties, and you will also get .5, prove the circle in the question, because I have not studied it in detail here, because it is not our senior high school entrance examination.