2. 外语
  3. Online social networks are massively influential, yet we understand very little about the impact they have on our brains. Recent

Online social networks are massively influential, yet we understand very little about the impact they have on our brains. Recent

admin2013-08-03  49
问题     Online social networks are massively influential, yet we understand very little about the impact they have on our brains. Recently, scientists have found a direct 【C1】______ between the number of Facebook friends a person has and the size of【C2】______ brain regions. The study also shows the more Facebook friends a person has, the more real-world friends he is【C3】______to have.
    Facebook users who have a【C4】______of friends also tend to have smaller circles of friends in the real-world and,【C5】______ those who have thousands of friends on Facebook are likely to have larger circles offline, according to the study. The findings support the【C6】______ that most Facebook users use the site to【C7】______their existing, real-life social relationships, maintaining or reinforcing these friendships,【C8】______creating a network of entirely new,【C9】______friends.
    The researchers scanned the brains of 125 university-aged Facebook users,【C10】______ these scans to the size of their friend networks online and the real-world. Those with larger Facebook networks had larger amounts of grey matter in several regions of the brain. One of these regions, the amygdala, is 【C11】______with processing memory and emotional responses. Pairing this【C12】______ another recent study, the researchers show increased volume grey matter in the amygdala【C13】______ a larger network of real-world friends.【C14】______these studies show a large network of online friends also point to an increased volume of grey matter—【C15】______ information processing occurs. In addition to brain scans, the participants were asked questions 【C16】______ to compare the size of their online networks to the size of their real-world networks.
    The study【C17】______the correlation between the number of friends online【C18】______ offline. Still, it is not possible from the【C19】______to say whether having more Facebook friends makes the regions of the brain larger【C20】______ whether some people are "hard-wired" to have more friends.
【C8】
选项 A、rather than
B、despite of
C、except for
D、along with
答案A
解析 短语辨析题。句意同上。根据上一题，“脸书”用户多是用网络来维持已有的关系，包括维护和强化友谊，而本题空格之后是建立新的朋友网络，两者显然是截然不同、相互抵触的。rather than“而不是”正确反映了这种关系。despite of“虽然”和along with“和……一起”则表示这两种行为都存在，与上述分析不符；except for“除……以外”表示排除某一事物的某个方面，显然也不符合语境。
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