[解析]
(1)推理判断题。根据上文Do you want to feel better,have more energy and even add years to you life?Just exercise(你想感觉更好,有更多的精力,甚至增加你的寿命吗?只是锻炼)和下文Here are some ways daily exercise can lead to a happier and healthier you.(这里有一些日常锻炼可以让你更快乐、更健康的方法。)可知本空要说为什么要锻炼,A项"经常锻炼会使你受益匪浅。"可以承接上文引出下文。故选A。
(2)联系上文题。根据上文Exercise delivers oxygen and nutrients to your body and helps your cardiovascular(心血管的) system work more efficiently.(运动可以将氧气和营养物质输送到你的身体,并帮助你的心血管系统更有效地工作。)可知讲的是心肺,G项"当你的心肺健康改善时,你每天都有更多的精力。"符合语境,与上文讲的cardiovascular相呼应。故选G。
(3)联系上文题。根据上文Regular trips to the gym are great,but don't worry if you can't find a large amount of time to exercise every day. (定期去健身房锻炼很好,但如果你每天找不到大量的时间锻炼也不用担心。)可知讲的是运动量,C项"适量的运动总比不运动好。"符合语境。故选C。
(4)联系上文题。根据上文Exercise can be fun and social.It gives you a chance to relax and enjoy the outdoors.(锻炼可以是有趣的和社交的。它给你一个放松和享受户外活动的机会。)可知讲的与社交有关,F项"锻炼还可以帮助你与朋友和邻居建立联系。"符合语境,故选F。
(5)联系下文题。根据下文Physical activity stimulates(刺激) various brain chemicals that may leave you feeling happier,more relaxed and less anxious.(体育活动会刺激各种各样的大脑化学物质,让你感觉更快乐、更放松、更少焦虑。)可知讲的与情绪有关,B项"在紧张的一天后需要情绪上的提升。"符合语境。故选B。