首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Too much eating. Too many unhealthy foods. Too many advertisements for food. Too little activity. Different explanations are
Too much eating. Too many unhealthy foods. Too many advertisements for food. Too little activity. Different explanations are
admin
2013-05-29
38
问题
Too much eating. Too many unhealthy foods. Too many advertisements for food. Too little activity.
Different explanations are offered for America’s weight problem--a problem increasingly shared by other countries. Almost one-fifth of American children and teenagers are overweight.
Schools have been urged to increase physical education, an important tool for public health. And many have. Yet now comes a study showing an increase in the number of injuries in physical education class. Injuries increased 150% between 1997 and 2007.
he study involved injuries treated in hospital emergency departments. Only 2% were serious. The researchers did not try to identify the causes of the increase, but they have some theories.
Lara McKenzie from Ohio State University was the lead researcher. She says one possibility is a decrease in the number of school nurses during the period they studied. For example, a 2004 study showed that the number of school nurses nationally failed to meet federal guidelines. Schools without a nurse on duty may be more likely to send an injured child to a hospital.
Another possible reason for more injuries is a change in the traditional idea of physical education. This "New PE." expands the kinds of sports that are taught. But activities that some schools offer now, like rock climbing walls and skateboarding, can also expand the risks, says Cheryl Richardson. She is with the National Association for Sport and Physical Education. Also, she says not all states require P.E. teachers to be specially trained. Untrained teachers could be less likely to recognize unsafe conditions.
Cheryl Richardson also points to one of the study’s findings--that injuries are often the result of contact with a person or a structure. This tells her that the teachers were not giving each student enough space to move around safely.
Six activities produced 70% of all injuries: running, basketball, football, volleyball, soccer and gymnastics.
The researchers say larger class sizes are another possible reason for the increase in injuries. Larger classes can mean less supervision. The National Association for Sport and Physical Education says 20 to 30 students in a PE. class should be the limit.
Which of the following activities has caused more injuries?
选项
A、Rock climbing.
B、Skateboarding.
C、Soccer.
D、Swimmin
答案
C
解析
转载请注明原文地址:https://jikaoti.com/ti/VYxYFFFM
0
研究生英语学位课统考(GET)
相关试题推荐
Theschoolshootingtriggeredabarrageoftransparentlyirrelevantproposedsolutions,tossedoutwithoutregardtotheirrelev
ThedevelopmentandwidespreaduseofcomputertechnologyandtheInternethavetransformedhowwecommunicate,howwecommunica
ThedevelopmentandwidespreaduseofcomputertechnologyandtheInternethavetransformedhowwecommunicate,howwecommunica
HumanCloningTheapplicationsofcloningasweenvisionarenotnightmarishandinhumane,butwillimprovetheoverallqual
Ondayoneofmyself-proclaimedMonthofGratitude,myfive-year-oldsonwokeup"bored"at5:15a.m.,Ispiedaspeedingti
Agreatdealofattentionisbeingpaidtodaytotheso-calleddigitaldivide—thedivisionoftheworldintotheinfo(informatio
Ithasbeenarguedthatwhereschoolsbecomebureaucratized,theybecomeboundupwiththetechniquesandimplementationofthe
Alittlemorethanacenturyago,MichaelFaraday,thenotedBritishphysicist,managedtogainaudiencewithagroupofhighgo
Ithasbeenarguedthatwhereschoolsbecomebureaucratized,theybecomeboundupwiththetechniquesandimplementationofthe
Therearevariouswaysinwhichindividualeconomicunitscaninteractwithoneanother.Threebasicwaysmaybedescribedasth
随机试题
运动会的3000米比赛中,运动员你追我赶。其中选手甲、乙、丙、丁表现特别出色,交替领先。观众张、王、李、赵分别预测了4位选手的最终名次:张:甲第四,乙第三,丙第二,丁第一;王:甲第三,乙第二,丙第四,丁第一;李:甲第四,乙第二,丙第一,丁第三;赵:
试析王某的行为构成什么罪?如果王某是在某商场捡到一张已填好的金额为2万元的支票,马上到银行兑取了现金,对王某的行为又该如何认定?
公司某部门80%的员工有本科以上学历,70%有销售经验,60%在生产一线工作过,该部门既有本科以上学历,又有销售经历,还在生产一线工作过的员工至少占员工总数的()。
根据行政复议法及相关规定,关于行政复议机关对行政复议申请的审查,下列说法哪些是正确的?
在足球比赛中,当防守队员注意到进攻方有一名队员突然往禁区插入时,该队员会以紧贴跟随的方式加强防守,这种心理活动属于()。
MichaelSockolandhisteamwereinterestedinWhatdidtheresearchersfindintheexperiment?
Americans’circleofcloseconfidantshasshrunkdramaticallyinthepasttwodecadesbutthenumberofpeoplewhosaythey【M1】_
Accordingtothewriter,thewomaninthemarketplace______.WhichofthefollowingisNOTcorrect?
A.decreasingB.underlinesC.deliveredD.missionsE.becauseF.putoffG.demandH.thoughI.playJ.improvingK.t
A、Thespaceisbigenough.B、Therearemanystudentsthere.C、Itismuchquieterthanotherplaces.D、Itismoreclose.C
最新回复
(
0
)