科学技术高速发展,物质生活资料日益丰富,而人们的健康状况却不容乐观,特别是当下青少年的体质健康状况已达到令人担忧的境地,大家一定见到过这样的情景:一个晴朗的早晨学校正在举行升旗仪式,正当大家凝神注视鲜艳的五星红旗伴着雄壮的国歌冉冉升起时,人群中一个娇弱的身影一闪不幸跌倒了,老 With the rapid development of science and technology and ever-increasing material living, people’s health is not optimistic. In particular, the physical and mental health of today’s adolescents has reached alarming proportions. Everyone must have seen such a scene: a sunny morning school As the flag-raising ceremony is being held, as we gaze at the vivid five-star red flag accompanied by the majestic anthem rising slowly, the crowd in a delicate figure twinkle unfortunate fall, the old