2. 外语
  3. Humans are social animals, and most of us treasure our relationships with family and friends. An【B1】_____line of research sugges

Humans are social animals, and most of us treasure our relationships with family and friends. An【B1】_____line of research sugges

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问题     Humans are social animals, and most of us treasure our relationships with family and friends. An【B1】_____line of research suggests that relationships can keep us healthier. And a new study finds that those social【B2】______ may also help us live longer. This new study【B3】______ a large number of previous studies and concluded that a lack of social interactions ranks right up with smoking, obesity, and 【B4】______as a risk factor for death. Researchers from Brigham Young University analyzed 148 studies with a total of some 300 000 participants,【B5】______their social relationships and whether they survived to the end of their【B6】______study, which averaged about seven years. One of the authors of the study, Prof. Julianne Holt-Lunstad【B7】______ out several ways in which relationships can affect our health. They can help us cope with stress. They can help us【B8】______healthy habits like eating well, exercising or seeing a doctor.【B9】______. "Although relationship quality matters, not all relationships are entirely positive," she conceded. "So it’s possible that the effects that we have reported may be a conservative estimate, and【B10】______. " Speaking via Skype, Julianne Holt-Lunstad said her research suggests that policy makers need to consider relationships as a health issue. So just as no-smoking zones have expanded over the years, she suggests that【B11】______
【B4】
选项
答案alcoholism
解析 同类列举题。空格处需要填入一个名词与smoking，obesity并列，根据后面的risk factor可知此名词也应该表示对人类生命构成威胁的因素。结合录音可得答案为alcoholism，意为“酗酒”。
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大学英语四级

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