未知题型
单项选择题 The Science of Sport 1.At the 2004 Olympic Games in Athens, the Chinese athlete Liu Xiang equaled the world record for the 110 metres hurdles(跨栏) when he ran the race in 12.91 seconds.This record time had been set in 1993 by British sprinter (短跑运动员)ColinJackson and 9 years went by before another athlete was able to run as fast.2.Record-breaking in all track events is slowing down and we appear to be moving much closer to the limits of human performancE.Nevertheless, every four years, records which were previously thought to be unbeatable are broken. So what's behind this never-ending improvement in performance? And how long can we keep breaking records?Is there a limit to human performance or will athletes continue to gain seconds?3.Most experts agree that it isn't the athletes' bodies which have changed but the hugs advances in sport science which have enabled them to improve their performances. The individual athlete obviously has to have the necessary skill and determination to succeed,but the help of science and technology can be significant. Research has brought a better understanding of the athlete's body and mind but the advances in sports equipment technology have also had an important impact on human performance.4.Scientists have shown that an athlete's body's needs vary according to the type of sport. This research has helped top sports people to adapt their training programme and diet better to their particular needs. Running the marathon and cycling, for example, are endurance (耐力) sports and require a different parathion (硝苯硫磷脂) to that of a 100-metre sprinter. In some sports, changes in techniques have significantly improved performance.5.But in any sport, a player's success or failure results from a combination of both physical and mental abilities. Most coaches use psychological techniques to help their athletes cope with stress and concentrate on their performancE.For example, the English football team listens to music in the changing rooms before a game to help the players relax and not feel so nervous. Before a difficult match, tennis players are encouraged to use visualization(想象) techniques to build confidence and this is almost as good as practice.6.But as science begins to dominate sport, are we in danger of losing sight of the heart of the competition, the sporting challenge? What's more, are all these advantages fair? 第 23 题 Paragraph1___________.
未知题型 7月,鲢烦躁不安,食欲减退,身体瘦弱,体表发红。肉眼可见细针状虫体头部插入鱼体肌肉、鳞下,虫体大部分露在鱼体外部。病鱼的病原最可能是()
单项选择题 Female Bullfighting It was a unique, eye-catching sight: an attractive woman in a shiny bullfighter's suit,sword in hand, facing the sharp horns of a black, 500-kilogram beast.Most people thought the days of female bullfighting were over in Spain.____________(46)The first woman fighter, Cristina Sanchez, quit in 1999 because of male discrimination (歧视). But Vega is determined to break into what could be Spain's most resistant male field.____________(47)Spanish women-have conquered almost all male professions.____________(48) 'The bull does not ask for youridentity card,' she said in an interview a few years ago. She insisted that she be judged for her skills rather than her femaleness.Vega became a matador (斗牛士) in 1997 in the southwestern city of Caceres.____________(49) She entered a bullfighting school in Malaga at age nine and performed her first major bullfight at age 14. She has faced as much opposition as Sanchez did. And the 'difficulties have made her grow into a very strong bullfighter,' her brother Jorge says.The 1.68-metre tall and somewhat shy Vega says her love of bullfighting does not make her any less of a woman.____________(50) A.She interids to become even better than Sanchez was.(有雄心壮志的) bullfighter.B.Her father was an aspiring C.But many bullfighting professionals continue to insist that women do not have what it takes to perform. the country's 'national show'.D.'I'm a woman from head to toe and proud of it,' she once said.E.She,looks like a male bullfighter. F.But recently, 29-year-old Marl Paz Vega became the second woman in Spanish history to fight against those heavy animals. 第 46 题 请选择(46)处的最佳答案.