15．[1]A life of overdrinking，tiredness and laziness may be enough to earn your doctor's disapproval，but there is one last hope：a repeat prescription of mates and good conversation．A circle of close friends and strong family ties can improve a person's health more than exercise，losing weight or quitting cigarettes and alcohol，psychologists say．
[2]Sociable people seem ________________ from their relationships by feeling less stressed，taking better care of themselves and having less risky lifestyles than those who are much lonelier，they claim．A review of studies into the impact of relationships on health found that people had a 50% better survival rate if they belonged to a wider social group no matter it was friends，neighbors，relatives or a mix of these．
[3]The striking impact of social connections on health has led researchers to call on health officials to take loneliness as seriously as other health risks，such as alcoholism and smoking．"We take relationships for granted as humans，"said Julianne Holt-Lunstad，a psychologist at Brigham Young University in Utah．"That constant interaction is not only beneficial psychologically but directly to our physical health．"
[4]Holt-Lunstad's team reviewed 148 studies that tracked the social interactions and health of 308，849 people over an average of 7.5 years．Holt-Lunstad said friends and family can improve health in a great many ways，from help in tough times to finding meaning in life．When someone is connected to a group and feels responsibility to other people，that sense of purpose and meaning translates to taking better care of themselves and taking fewer risks．Holt-Lunstad said there was no clear figure on how many relationships are enough to improve a person's health，but people did enjoy better health when they rarely felt lonely and were close to a group of friends，had good family contact and had someone they could rely on．
76．What is the main idea of the text？（no more than 8 words）
Social connections improve people's health．
77．According to the passage，what else can improve people's health besides exercise，losing weight，quitting cigarettes and alcohol？（no more than 10 words）
A circle of close friends and strong family ties
78．Fill in the blank in Paragraph 2 with proper words．（no more than 5 words）
to benefit
79．According to paragraph 4，what can make people enjoy better health？（no more than 4 words）
Friends and family
80．What does the word"it"（Line 5，Paragraph 2）probably refer to？（no more than 4 words）
social group．
分析 本文主要讲述社会关系对人们健康的影响．
解答 76 Social connections improve people's health．
77 A circle of close friends and strong family ties
78 to benefit
79 Friends and family
80 social group
76 Social connections improve people's health．主旨大意题． 通读全文可知本文主要讲述社会关系对人们健康的影响．
77 A circle of close friends and strong family ties细节题． 根据文章第一 段A circle of close friends and strong family ties can improve a person's health more than exercise，losing weight or quitting cigarettes and alcohol，psychologists say．可知除了减肥和锻炼等可以改善人们的健康，朋友和家庭纽带也可以使人们保持健康．
78 to benefit细节题． 根据文章第 二段taking better care of themselves and having less risky lifestyles than those who are much lonelier，they claim． 可知社交人士看起来从关系网受益很多，比如比孤独的人更能照顾好自己．
79 Friends and family细节题． 根据文章第四 段．Holt-Lunstad said friends and family can improve health in a great many ways，from help in tough times to finding meaning in life． 可知朋友和家庭在很多方面可以改善人们的健康．
80 social group猜测词义题． 根据文章第二 段 people had a 50% better survival rate if they belonged to a wider social group no matter it was friends，neighbors，relatives or a mix of these．可知拥有更广泛社会群体的人们存活率要比孤独的人高50%．
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