[解析]
(1)B.细节理解题。根据前文"it builds endurance,muscle strength and cardiovascular fitness(锻炼耐力、肌肉力量和心血管健康)"及下文"Many people feel that swimming is very exciting and relaxing(许多人觉得游泳是非常刺激和放松)"可知,游泳有益于身心健康。B项"If you don't mind getting wet,it can be fun,too.(如果你不介意被淋湿,游泳也会很有趣。)"在此承接上文,引出下文,it指代swimming,符合语境。故选B.
(2)C.因果关系题。根据前句"Jumping in cold water gives a short sharp shock to the body(跳入冷水中会对身体造成短暂而剧烈的冲击)"及后文"but research has found it can have much bigger benefits than those for your body and mind.As well as being good exercise,cold﹣water swimming improves well﹣being.(但研究发现,它对你的身体和精神有更大的好处。冷水游泳不仅是一种很好的锻炼,还能提高身体素质。)"可知,该空处要说明为什么冷水游泳对身体有短暂的冲击,但还是有人乐此不疲。C项"However,many participants say they get used to it(然而,许多参与者说,他们习惯了)"解释了原因,符合语境。故选C.
(3)F.段落大意题。根据后句"One man who suffered constant pain after surgery claimed he was cured by taking a swim in cold open water(一名在手术后饱受疼痛折磨的男子声称,在寒冷的开放水域游泳后,他的病就好了)"可知,冷水游泳可以治疗疾病。F项"Cold﹣water swimming can cure certain conditions(冷水游泳可以治愈某些疾病)"符合语境,cure是关键对应词。故选F.
(4)A.问题回答题。根据前文"What is it that people are gaining from this cold experience?Doctors say getting into cold water makes a stress response,but the more you do it,your reaction to stress is reduced.(人们从这种冰冷的体验中得到了什么?医生说,进入冷水中会产生压力反应,但你做得越多,你对压力的反应就越少)"可知,A项"Cold﹣water swimming is beneficial to people(冷水游泳对人们有益)"承接上句,继续回答对冷水游泳的体验,符合题意。故选A.
(5)G.举例说明题。根据前文"In addition,cold﹣water swimming can exercise swimmers' willpower.But there are bigger benefits of this stress﹣reducing exercise.Some experts believe cold﹣water swimming helps "cross﹣adaptation",where one form of stress prepares the body for another(此外,冷水游泳可以锻炼游泳者的意志力。但这种减压运动还有更大的好处。一些专家认为冷水游泳有助于"交叉适应",即一种形式的压力让身体为另一种形式的压力做好准备)"可知,冷水游泳可锻炼应对压力的能力。G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地区锻炼的压力)"举例说明冷水游泳在应对压力方面的好处,符合题意,stress是关键对应词。故选G.