今天,教体育的余老师一上课就宣布,这节体育课的内容是学做仰卧起坐,还要比谁做得多、做得好。大家都很兴奋。我们在操场上整齐地站好队,余老师从体育室拿来一张皮垫子铺在地上,叫我们围成一圈,给我们讲解动作要领:“首先要平躺在垫子上,然后把十指交叉,用双手抱住后脑勺,再把身子往上拉,直到身体坐起来为止。” Today, more than one teacher who taught physical education announced in class that the content of this section of physical education is to learn to do sit-ups and to do more than anyone else. Everyone is very excited. We stood neatly in the playground, good team, Yu teacher from the sports room brought a leather mat on the floor, called us in a circle, to explain our action essentials: "First, lay flat on the mat, and then Cross fingers, hug the back of your head with both hands, and pull your body up until your body sits up.