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  3. Ninety percent of Americans know that most of their compatriots are overweight, but just 40 percent believe themselves to be too

Ninety percent of Americans know that most of their compatriots are overweight, but just 40 percent believe themselves to be too

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问题     Ninety percent of Americans know that most of their compatriots are overweight, but just 40 percent believe themselves to be too fat. Government【B1】______ show that more than 60 percent of the U.S. population is overweight, and half is obese, meaning they are【B2】______health effects from their weight. But the Pew Research Center telephone survey of more than 2,000 adults finds that many people【B3】______ how tall they are and underestimate how much they weigh—and thus do not rate themselves as overweight, even when they are. The survey finds that most Americans, including those who say they are overweight, agree that【B4】______ behavior—rather than genetic【B5】______or marketing by food companies—is the main reason people are overweight.【B6】______, the public says that a failure to get enough exercise is the most important reason, followed by a lack of【B7】______about what to eat. About half the public also says that the kinds of foods marketed at restaurants and【B8】______stores are a very important cause, and roughly a third says the same about the effect of genetics and heredity. And at least some people【B9】______ have given up on dieting to control their weight. One in four respondents in the survey say they are currently dieting, and 52 percent say they have dieted at some point in their lives. In a poll taken 15 years ago, the percentage of adults who reported having ever dieted was【B10】______ higher—57 percent. Those surveyed agree that maintaining a healthy weight is important. Virtually everyone agrees that a person’s weight has an impact on the chances for a long and healthy life.
【B10】
选项
答案slightly
解析 这里不缺少句子的主要成分，判断填入的是副词。slightly的意思是“稍微地”。
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