5.

　　C　主旨大意题。文章开篇点题，讲的是通过在星期六和星期日的下午播放一些电视节目来吸引那些高收入的人来看，给广告带来了极大的效益。说明体育在电视广告中起着很重要的作用。故选C。

　　—主旨大意题、标题概括题。

　　(2015年河南周口模拟)

　　A small piece of fish each day may keep the heart doctor away. That's the finding of a study of Dutch men in which deaths from heart disease were more than 50 percent lower among those who consumed at least an ounce of salt-water fish per day compared to those who never ate fish.

　　The Dutch research is one of three human studies that give strong scientific support to the long held belief that eating fish can provide health benefits, particularly to the heart.

　　Heart disease is the number-one killer in the United States, with more than 550,000 deaths occurring from heart attacks each year. But previous research has shown that the level of heart disease is lower in cultures that consume more fish than Americans do. There are fewer heart disease deaths, for example, among the Eskimos of Greenland, who consume about 14 ounces of fish a day, and among the Japanese, whose daily fish consumption averages more than 3 ounces.

　　For 20 years, the Dutch study followed 852 middle-aged men, 20 percent of whom ate no fish. At the start of the study, average fish consumption was about two-thirds of an ounce each day, with more men eating lean fish than fatty fish.

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