C. 主旨大意题.这四个选项都有一定的干扰性 ,A 项纯解说这两项运动 ;B .D 项没有包括锻炼.节食两项内容 , 不全面. C 项表示 " 身体健康 ", 短文就是围绕这一主题进行阐述的. C There is no doubt that watching television and can influence the way that people behave. Moreover, it seems that people are spending more and more time watching some sort of visual entertainment, whether it is television, a video tape or a DVD. Therefore, the effects of visual media cannot be ignored. One obvious effect of the these media is that watching them induces people to buy certain products. television advertising is widespread and, nowadays, even movie theaters permit advertisements. Another way TV and the movies affect people is that they give people either a broader view of the world or a distorted one, depending on what type of program they watch. Those who watch news and educational program can learn many new things while those who watch primarily entertainment shows may come to believe that most people in the world possess great wealth and good looks. It may make them become dissatisfied with their own lives. Finally, perhaps the most susceptibleviewers are children, who may be unable to tell fact from fiction and may try to imitate acts that they see on TV or in the movies. With the every-increasing popularity of video entertainment, society must pay attention to these effects. Television and movies, while entertaining and informative, cannot take the place of real experience. 【
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