选修七 Unit 3 高考提能练

　　阅读理解·组块专练——练速度

　　(限时：35分钟)

　　Ⅰ.阅读理解

　　A

　　(2016·太原市第二学段测评)Companies can save millions in health­care costs simply by encouraging their employees to exercise a little bit.Researchers report that obese employees have higher health­care costs, but they can lower those expenses by

　　exercising just a couple of times a week — without even losing any weight.

　　Feifei Wang and his colleagues at the University of Michigan studied 23,500 workers at General Motors.They estimated that getting the most obese workers to exercise would have saved about $790,000 a year, or about 1.5 percent of health­care costs for the whole group.Company­wide, the potential savings could reach $7.1 million per year, according to their report published in Journal of Occupational and Environmental Medicine.

　　Of the whole group of workers, about 30 percent were of normal weight, 45 percent were overweight, and 25 percent were obese. Annual health­care costs averaged $2,200 for normal weight, $2,400 for the overweight, and $2,700 for obese employees. But among workers who did no exercise, health­care costs went up by at least $100 a year, and were $3,000

　　a year for obese employees who were sedentary (久坐的)．

　　But adding two or more days of light exercise — at least 20 minutes of exercise or work hard enough to increase heart rate and breathing — lowered costs by on average $500 per employee a year, the researchers found. “This indicates that physical activity behavior could lessen at least some of the negative effects of excess body fat, and in consequence, help lower the increasing health­care costs，” Wang and his colleagues wrote.

【2017届高考英语一轮复习技能提升练：选修7 Unit 3《Under the sea》（新人教版含解析）】相关文章：

★ 【北京专用】2014届高考英语一轮复习方案课时作业：必修1 Unit 5 Nelson Mandela

★ 2017届高考英语二轮复习课时训练：2（含解析）

★ 2017届高考英语二轮复习书面表达限时测验：1（含解析）

★ 【浙江专用】2014届高考英语一轮复习课时作业(二十七)选修6Unit 2《Poems》

★ 【三维设计】2017届高考英语（江苏专用）二轮复习课件：必修4 Unit 3《Tomorrow’s world》

★ （安徽专用）2014届高考英语一轮复习方案 作业手册（4）模块2 《Unit 4 Cyberspac》（含解析） 北师大版必修1

★ 【人教版】2014届高考英语一轮复习指导考点针对练：选修7 unit3《Under the sea》

★ （安徽专用）2014届高考英语一轮复习方案 作业手册（24）模块8 《Unit 24 Society》（含解析） 北师大版必修1

★ 2017届江苏省淮安市新马中学高考牛津译林版英语一轮复习活动单：模块6 Unit 3《Understanding each other》

★ 2017高考四川省广安市英语阅读理解一轮系列训练：13（含解析）