[解析]
(1)G 细节题,根据文章内容,空格处前一句谈了人们在暑假容易增重,而空格处后一句说有四种解决在暑假期间增重的方法,故空格处应表示转折,所以选G项.
(2)A 推理题,根据后文 段落主要讲假期树立目标的必要性,故选A项.
(3)D 细节题本段主要讲假期要让自己忙碌起来.空格处前一句谈了假期有事可做会有成就感,因此选项D中"That's especially true"与"give you a sense of accomplishment"相对应,此处表示如果你梦想的暑期工作落空了,有很多事情做也会给你一种成就感.
(4)F 推理题.本段主要讲战胜酷暑,保持运动.根据空格处后一句"If a gym isn't your scene,try bowling or an indoor climbing wall"可知,此处讲的是天气太热时可以进行 室内运动,故选F项.
(5)C 推理题,根据文章内容Make sure your summer days have some structure﹣like getting up at the same time each day.Plan activities for specific times,like exercising before breakfast.本段主要讲假期要有计划,还要坚持,故选C项.