[解析]
(1)D.语境衔接题。根据上文We all know about the health benefts of swimming,including building endurance,muscle strength and cardiovascular (心血管的) fitness.(我们都知道游泳对健康的好处,包括锻炼耐力、肌肉力量和心血管健康。)和下文Many people feel that swimming is very exciting and relaxing.(很多人觉得游泳很刺激,很放松。)可知,设空处应是承上启下的句子,继续补充说明游泳带来的好处,尤其是精神层面的。结合选项可知,D项For example,it helps reduce the stress of exercising at high altitudes.(如果你不介意身上变湿,那也会很有趣。)符合上下文语境。故选D。
(2)E.推理判断题。根据上文Jumping in cold water gives a short sharp shock to the body." (跳入冷水中会对身体造成短的剧烈冲击。)和下文"A cold dip might wake you up,but research has found it can have much bigger benefits than those for your body and mind.( 跳入冷水可能会让你清醒,但研究发现,冷水游泳对你的身心有更大的好处。)由此可推知,设空处与上文构成转折,表明冷水游泳虽冷,但许多参与者都已经习惯了"冷水游泳",承接下文讲冷水游泳的好处,结合选项可知,因此E项However,many participants say they get used to it.(然而,许多参与者说他们已经习惯了。)符合语境。故选E。
(3)B.标题归纳题。设空处位于本段段首,应为本段的主题句。根据下文One man who sufred constant pain after surgery claimed he was cured by taking a swim in cold open water.And another swimmer,Sandria Simons,told the BBC"the immersion of your body in cold,salt water,just feling like you're at one with nature if you like,just feels amazing".(一名在手术后饱受疼痛折磨的男子声称,他在冰冷的公开水域游泳后就痊愈了。另一名游泳运动员桑德里亚西蒙斯告诉BBC,"你的身体沉浸在冰冷的咸水中,感觉就像你与大自然融为一体,这感觉太棒了。")可知,本段主要说明冷水游泳可以治愈某些人的健康问题。因此B项Cold﹣water swimming can function as a dose of medicine.(冷水游泳是一剂良药。)能够概括本段的主要内容,故选B。
(4)A.细节理解题。根据上文中的Doctors say getting into cold water makes a stress response,but the more you do it,your reaction to stress is reduced.(医生说进入冷水会产生压力反应,但是你做得越多,你对压力的反应就会减少。)以及下文中的In adition,cold﹣water swimming can exercise swimmers' willpower.(此外,冷水游泳可以锻炼游泳者的意志力。)可知,设空处应是继续介绍冷水游泳的其他好处,因此A项It's also thought to strengthen our digestive function.(它也被认为能够增强我们的消化功能。)符合语境。故选A。
(5)C.联系上文题。根据上文Some experts believe cold﹣water swimming helps"cross﹣adaptation",where one form of stress prepares the body for another.(一些专家认为冷水游泳有利于交叉适应,即一种压力使身体为另一种压力做好准备。)可知,这个表述显然有些抽象,因此C项For example,it helps reduce the stress of exercising at high altitudes.(例如,它有助于减少在高海拔运动的压力。)正好对此讲行举例说明,符合语境。故选C。