第三份阅读理解

Sport is not only physically challenging, but it can also be mentally challenging. Criticism from coaches, parents, and other teammates, as well as pressure to win can create an excessive amount of anxiety or stress for young athletes. Stress can be physical, emotional, or psychological, and research has indicated that it can lead to burnout (筋疲力尽). Burnout has been described as dropping or quitting of an activity that was at one time enjoyable.
The early years of development are critical years for learning about oneself. The sport setting is one where valuable experiences can take place. Young athletes can, for example, learn how to cooperate with others, make friends and gain other social skills that will be used throughout their lives. Coaches and parents should be aware, at all times, that their feedback (反馈) to youngsters can greatly affect their children. Youngsters may take their parents' and coaches' criticisms to heart and find a flaw (缺陷) in themselves.
Coaches and parents should also be cautious that youth sport participation does not become work for children. The outcome of the game should not be more important than the process of learning the sport and other life lessons. In today's youth sport setting, young athletes may be worrying more about who will win instead of enjoying themselves and the sport. Following a game, many parents and coaches focus on the outcome and find fault with youngster's performances. Positive reinforcement should be provided regardless of the outcome. Research indicates that positive reinforcement motivates and has a greater effect on learning than criticism. Again, criticism can create high levels of stress, which can lead to burnout.
Between about 1910 and 1930, new artistic movements in European art were making themselves felt in the United States. American artists became familiar with the new art on their trips to Paris and at the exhibitions in the famous New York gallery (美术馆) "219" (named after its address on Fifth Avenue) of the photographer Alfred Stiegliz. But the most important in the spread of the modern movements in the United States was the Armory Show of 1913 held in New York, in which the works of many of the leading European artists were seen along with the works of a number of progressive American painters.
Most of the American modernists who were influenced by the Armory Show found the city landscape, especially New York, an appealing subject. Compared with the works of the realist painters, the
works of American modernists were much further removed from the actual appearance of the city; they were more interested in the "feel" of the city, more concerned with the meaning behind appearance. However, both the painters of the "Ash Can School" and the later realists were still tied to nineteenth-century or earlier styles, while the early modernists shared in the international breakthroughs of the art of the twentieth century.
The greatest of these breakthroughs was Cubism (立体派) developed most fully in France between 1907 and 1914, which brought about a major revolution in Western painting. It fought against and changed the rational tradition that had been built upon since the Renaissance (文艺复兴). In Cubism, natural forms were broken down into shapes. No longer was a clear difference made between the figure and the background of a painting: the objects represented and the surface on which they were painted became one. The Cubists abandoned the conventional point of view, and objects depicted from multiple viewpoints were shown at the same time.。