跑,是人体最基本的活动能力之一,也是各项运动的基础.快速跑是中学体育教学最常见的内容,也是衡量学生身体素质的重要评价项目.我市50米项目是体育中考中的必考项目,所以在平时的体育教学中50米训练占据了很重要的地位.但是我校自从去年6月份开展校安工程以来,体育课的活动场地严重缩小,只能在那综合楼及初三教学楼之间不到600平米的水泥地上进行,有时甚至3-4个班一起上,这样就很难按照常规的教学方法来进行50米训练.那么怎样在这么有限的空间进行50米教学,才能提高学生的50米跑成绩呢?我就实际教学中的教学方法和手段与大家一起探讨.

In this article,we analyzed the 81 head shots during the 16th-18th FIFA World Cup by using the methods of documents and statistics.The results show that the main goal stages are the period after starting within 16-30 minutes and 75-90 minutes,the main area is the centre of forbidden area,the main technical patterns are the hop and turn shot,and the main goals' players are the taller forwards and back.