Passage 65
学霸导读 体育运动对健康生活很重要，但有些人不重视它。如今不健康的饮食和生活习惯盛行，我们更要为体育运动的必要性正名。
Nine times out of ten, students complain to their Physical Education teachers about being out in the hot sun, running around for no reason. Perhaps in lower level education, children r 1 it as a way of escaping the classroom. But a 2 they grow older, it’s more likely looked upon as a huge waste of time and energy.
However， engaging in acts of physical activity from a young age is very important for both the m 3 and physical health of a child； the habits learnt in youth tend to continue into adulthood， thus having an e 4 on the prevalence （ 流行 ） of obesity （ 肥胖 ） and related illnesses in society. Physical activity has been associated with an increased life expectancy in adults so its importance is obvious， but its value for children sometimes needs to be justif ied （ 证明……有道理 ）. It is never too early to start teaching a child positive behavior and habits； however， in middle childhood （ ages 6 ～ 10 ） children tend to be in a stage of development w 5 they think very literally and will absorb everything you teach， do and say. It is during this stage of development that they are most likely to be taught healthy eating habits， develop exercise programs and have an i 6 in organized sports.
Physical activity is one of the most important things we all can and should do to keep our body in healthy shape. There are many health conditions that don’t require a pill to be swallowed on a daily b 7 but can be helped with a tiny amount of time invested in exercising. Physical activity is b 8 for health. It has also been considered a tool for boosting our social life.
People who see exercise as a total waste of time should understand that exercise is essential to life because it not only p 9 us from being vulnerable （ 脆弱的 ） to illness， but it also teaches us how to be disciplined in the sense that we have complete control over our body and its outcome. Today we live in an environment where we get more unhealthy foods and beverages for a lesser cost， which in t 10 promotes greater consumption， but causes more unhealthier children and adults. Therefore， we need more exercise to be healthier.
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高频词汇
escape /ɪ'skeɪp/ v. 逃跑；避免
literally /'lɪtərəli/ adv. 字面上
absorb /əb'zɔːb/ v. 吸收；理解
boost /buːst/ v. 增强；使兴旺