2. Solid ball: Before the solid ball test, all joints and muscles must be fully stretched and adjusted to the best condition. Before the test, review the technical movements of the solid ball. If conditions permit, try to throw a few balls before the test. During the exam, open your feet back and forth or left and right, face the throwing direction, hold your hands high above your head and lean back slightly, and throw the ball forward in the same place. Remember not to step on the line. Be careful not to leave the ground before throwing, and the ball can not leave the ground until it is thrown out of the hind foot. Be careful not to step on the line and control the center of gravity. Similarly, each person throws three times and gets the best result. In the first semester, physical training was carried out as planned, and jogging was insisted every day. No speed was required, and time was not counted. Students only jog during this period to improve their physical strength and physical fitness. Through this period of training, students can basically have the ability to run 1000 meters. After this stage is completed, students will not feel breathing difficulties when running1000 m. For reference only.