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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
admin
2012-05-04
26
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 " hardwired" to have more friends.
【C1】
选项
A、similarity
B、joint
C、distinction
D、link
答案
D
解析
名词辨析题。句意为:近来,科学家们发现一个人在“脸书”上拥有的好友数量与脑部特定区域的大小有直接关联。通读全文,尤其是第三段第二句“脸书好友圈越大,几个脑部区域的灰质量就越大”,说明好友圈的数量与脑部的一区域的大小有直接关联,故D项的link符合文意。“脸书”的好友数量与脑部区域的大小为不同类别的事物,不具有可比性,因此,应首先排除similarity“相似性”和distinction“区别,差别”;而joint“结合处”主要指两个事物相连接的部位,表示一种具体的物理关系,而不是抽象的联系,排除。
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专业英语四级
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