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  3. Baby fat is something children are supposed to outgrow, not grow in to. The percentage of overweight children has more than trip

Baby fat is something children are supposed to outgrow, not grow in to. The percentage of overweight children has more than trip

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问题     Baby fat is something children are supposed to outgrow, not grow in to. The percentage of overweight children has more than tripled since 1980. Extra pounds and too big waistlines have serious【B1】______for children, including self-esteem, social problems, and increased risk for chronic diseases. Experts say there is no 【B2】______cause of childhood obesity. Genetics plays a role, but too little exercise and poor food choices are more often the culprits(问题的起因).
    Children today are less active than past generations. With more families living in cities, parents may keep children indoors more often out of concern for their safety. Adding to the problem, many schools have 【B3】______ on physical education programs. Instead of getting the recommended 60 minutes of 【B4】______activity a day, many children spend many hours watching television at home.
    Our environment is loaded with food temptations. High-calorie foods are available everywhere. Fruits and vegetables are easily【B5】______in favor of high-calorie snacks. Hectic schedules mean home-cooked family meals are often skipped and【B6】______with less nutritious foods eaten on the run.
    Being overweight places a child at risk for many health problems. Obese children often have high cholesterol and high blood pressure, increasing their risk for heart disease. Children who are obese are more likely to have asthma and sleep apnea, a breathing problem that interrupts sleep, as well as bone and joint【B7】______. And overweight children are more likely to become overweight adults.
    The【B8】______ stress that overweight children experience can be as devastating as the medical problems. They are often【B9】______ by other children and as a result suffer poor self-image, low self-esteem and【B10】______.
【B2】
选项
答案single
解析 由空格后的名词cause可知，空格处需填入一个形容词。结合录音可知，答案为single，意为“单一的”。
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