皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【单选题】
Part B (10 points) You are going to read a text about the approaches to creating championship, followed by a list of examples. Choose the best example. (41) What do you need in order to be a record breaker? Sports experts agree that the single most important factor in creating a champion is genetic make-up, the possession of genes that impart an innate ability to stride leap, burn energy efficiently or suck lots of oxygen from the air. 'The great athletes are genuine statistical outliers...physiological freaks,' says sports scientist Craig Sharp of Brunel University in Middlesex, UK. (42) How will we find or create the next generation of champion athletes? The most likely way is to widen our search to find someone with a genetic makeup that allows him or her to surpass other athletes. When East African runners began competing internationally, for example, it became apparent that their light frame. make them uniquely economical in their use of energy. (43) Have we reached the limit of human performance? No, but records are being broken by ever narrower margins. When statisticians plot how the best performance in a given event changes over time, they see the graph leveling off. And the shorter the event, the smaller are the slivers of time being shaved off. So al though Paula Radcliffe has sliced whole seconds off the marathon world record, sprinters are improving by mere hundredths of a second. (44) Will we ever reach an absolute limit? Theoretically, an absolute time to how far or fast the human body can go does, but 'where it is we don't know,' says Millar. Perhaps the only way we can recognize the ultimate performance will be retrospectively, after a record has stood for years. (45) In future, will athletes simply test their limits in new ways? As records become harder and harder to break, we may start comparing athletes by other standards, such as the number of gold medals or their performance over time. Lance Armstrong's six consecutive wins in the Tour de France, for example, may never be surpassed. 'The elite might be defined by how many times they win', says Millar.
A.
Athletes might also invent new sports to test themselves. The emergence of the triathlon in the 1970s was fuelled by runners, swimmers and cyclists looking for a new challenge; it made its debut as an Olympic event in 2000.
B.
Once scientists have identified the genes that confer a genetic advantage in sport, athletes might also be screened to pick out the ones with most genetic potential. 'There are all sorts of people out there, and we don't know what they can do', says exercise and sports scientist Carl Foster of the University of Wisconsin in La Crosse. Because the rewards are growing and competition is becoming more intense, athletes are being driven more and more towards drugs to gain the edge. Experts predict that the next generation of champions will include many doped ones. They are particularly fearful of 'gene doping' in which athletes boost the performance of key genes.
C.
Psychology is vital. Athletes need enormous focus and drive to win. Many people think that the main barrier to breaking the four-minute mile was a psychological one: once Roger Bannister did it in 1954, several others clocked sub-four-minute times shortly afterwards. Sometimes breaking a record involves taking a risk in an event, such as breaking from the pack with a full lap to go, and that takes a certain state.
D.
Not every sport can be accurately measured, of course. Running and jumping can be quantified with stick or stopwatch, but football and tennis performances are much harder to gauge.
E.
On top of this, however, training and technique are vital. They allow athletes to sculpt muscles, for example, so that they burn less energy while achieving the same speeds as others.
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【单选题】CAD是计算机主要应用领域之一,它的含义是
A.
计算机辅助教育
B.
计算机辅助测试
C.
计算机辅助设计
D.
计算机辅助管理
【单选题】海水淹溺的表现有:
A.
血液稀释,血容量减少
B.
血液浓缩,血容量增加
C.
血液浓缩,血容量减少
D.
高钙血症引起心律失常
E.
高钾血症诱发心律失常
【多选题】反循环压井法优点是()复杂情况的发生。
A.
将高套压转变成了高立压,让钻具作为承压管柱
B.
将高立压转变成了高套压,让井壁作为承压管柱
C.
避免套管破坏
D.
易使套管破坏
E.
避免压漏地层等
【判断题】我国的智能交通系统发展相当迅速,特别是在北京上海广州等大城市。( )
A.
正确
B.
错误
【判断题】在实施医疗质量管理过程中,PDCA循环法的优点是可以找出在一些质量问题中哪些是主要的或重要的质量问题,通过主、次比较提出亟需要解决的首要问题。
A.
正确
B.
错误
【多选题】以下哪些做法应用了轨迹交叉论的思想
A.
消除人的不安全行为可以避免事故
B.
消除物的不安全状态也可以避免事故
C.
预防事故的侧重点是人失误难以控制,但可控制设备、物流不发生故障
D.
人的因素和物的因素两个运动轨迹中,二者往往相互关联、互为因果、相互转换
【单选题】循环审计方法相对于分项审计方法的最大优点是
A.
按业务循环去了解内部控制、测试内部控制,同时将特定业务循环所涉及的会计报表项目分配给一个或数个审计人员能够提高审计效率和效果
B.
便于进行内部控制测试
C.
便于进行实质性测试
D.
便于结合会计报表项目
【单选题】以下不是循环盘点法优点的是
A.
能周期性地发现问题所在并采取措施。
B.
可以完全或部分地消除由于盘点而造成的停产。
C.
可以减少盘点的次数
D.
提高循环盘点人员的素质
【判断题】交互设计的原则之一是 允许兼用鼠标和键盘
A.
正确
B.
错误
【判断题】循环测验编排法的最大优点是易组织。
A.
正确
B.
错误
相关题目:
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题