自从体育学科被纳入中考考试科目后，很多中学都重视体育课了，这是好现象。但从中考成绩看，很多学生的体育成绩都不理想，反映在投掷项目方面尤真突出。究其原因，我认为主要是教师指导不得力。提高投掷水平，要让学生懂得投掷理论，把力学原理用于投掷。恰恰在这方面，很多 Since the sports subject was included in the examination subjects, many middle schools have attached importance to physical education classes. This is a good phenomenon. However, judging from the results of the examination, many students’ sports performance is not ideal, which is reflected in the highlights of the project. The reason for this is, I think, mainly because of poor teacher guidance. To increase the level of throwing, students should be taught how to throw the theory and use the principle of mechanics for throwing. Just in this respect, many