首页
登录
职称英语
[originaltext] America is a country on the move. In unheard of numbers, peop
[originaltext] America is a country on the move. In unheard of numbers, peop
游客
2023-08-03
73
管理
问题
America is a country on the move. In unheard of numbers, people of all ages are exercising their way to better health. According to the latest figures, 59 percent of American adults exercise regularly, up 12 percent from just two years ago and more than double the figure of 25 years ago. Even non-exercisers believe they would be more attractive and confident if they were more active.
It is hard not to get the message. The virtues of physical fitness are shown on magazine covers, postage stamps, and television ads for everything from beauty soaps to travel books. Exercise as a part of daily life did not catch on until the late 1960s when research by military doctors began to show the health benefits of doing regular physical exercise. Growing publicity for races held in American cities helped fuel a strong interest in the ancient sport of running.
Although running has leveled off in recent years as Americans have discovered equally rewarding and sometimes safer forms of exercise, such as walking and swimming, running remains the most popular form of exercise.
As the popularity of exercise continues to mount, so does scientific evidence of its health benefits. The key to fitness is exercising the major muscle groups vigorously enough to approximately double the heart rate and keep it doubled for 20 to 30 minutes at a time. Doing such physical exercises three times or more a week will produce considerable improvements in physical health in about three months.
选项
A、They are self-evident.
B、They are yet to be proved.
C、They are to be further studied.
D、They are supported by scientific evidence.
答案
D
解析
What call be learnt about the health benefits of exercise from the passage?
转载请注明原文地址:http://tihaiku.com/zcyy/2893385.html
相关试题推荐
[originaltext]Goodmorning,ladiesandgentlemen.I’mJoannaWhite,asenio
[originaltext]Goodafternoon,everyone.WelcometoEdwardHouse,oneofthe
[originaltext]Goodafternoon,everyone.WelcometoEdwardHouse,oneofthe
[originaltext]Goodafternoon,everyone.WelcometoEdwardHouse,oneofthe
[originaltext]FromtheiPhonepersonalassistantSiritodoingsearcheson
[originaltext]M:Hello,canIhelpyou?W:Oh,yes.Goodafternoon.Isawthea
[originaltext]M:Tellme,Mrs.Clark,howdidyoucometobeabeardedlady?W:
[originaltext]M:Tellme,Mrs.Clark,howdidyoucometobeabeardedlady?W:
[originaltext]Mostpeopleintheirfirstyearatuniversitywillwanttoli
[originaltext]Today,I’mgoingtogiveyouanintroductionoftheorientati
随机试题
Thatexperiencesinfluencesubsequentbehaviorisevidenceofanobviousbu
Nowadaysadvertisingcostsarenolongerinreasonable______tothetotalcostof
WritingEffectiveSurveyQuestionsI.Forquantitativedat
[originaltext]Wouldyouliketohaveacupofcoffee?[/originaltext][originalt
A.立即因呼吸衰竭死亡 B.四肢屈伸功能丧失 C.上肢屈肘动作存在,伸肘及手
中医的肾子相当于A.阴茎 B.睾丸 C.附睾 D.精索 E.睾丸及附睾
在房地产经纪机构注销时,下列对尚未完成的房地产经纪业务所采取的处理方式中,不正确
现售商品房的房地产开发企业应当具有企业法人营业执照和()A:房地产开发管理条例
工程建设项目()是风险分析的基础,其目的是减少工程建设项目构成的不确定性。A.风
编码方案是对企业关键核算对象进行分类级次及各级编码长度的制定,其设置包括()的设
最新回复
(
0
)