To make matters worse,many researches show regular 　7　 and a good diet can’t reduce the 　8　 effects of sitting too much. 

　　A 2010 study of nearly 9,000 Australians 　9　 that for each additional hour of television a person 　10　 per day,the risk of dying 　11　 by 11 percent.Another study 　12　 the health of 123,000 Americans between 1992 and 2006.The death 　13　 for men who spent six hours or more per day sitting was about 20 percent 　14　 than for men who sat for three hours or less.The death rate for women who 　15　 for more than six hours a day was about 40 percent higher. 

　　In other words,sitting is 　16　 us.So what can we do about it?Health experts suggest we break up those many hours spent sitting with more hours spent 　17　.The researchers believe that even small 　18　,like standing while talking on the phone,going over to 　19　 to a colleague rather than sending an e-mail,or 　20　 taking the stairs instead of the elevator,will help. 

　　(2015·北京华清园月考)

　　1.A.house B.cinema

　　C.office D.hall

　　2.A.turned B.served

　　C.acted D.accepted

　　3.A.necessarily B.probably

　　C.reasonably D.doubtfully

　　4.A.creative B.cautious

　　C.bad D.good

　　5.A.reduced B.deleted

　　C.increased D.approved

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