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  3. 【F1】Many of us may have lists of contacts and followers on social media networks that extend into the thousands, but new researc

【F1】Many of us may have lists of contacts and followers on social media networks that extend into the thousands, but new researc

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问题     【F1】Many of us may have lists of contacts and followers on social media networks that extend into the thousands, but new research has found we may actually only have five real friends.【F2】A team of scientists have found that while humans have the capacity to form complex layered societies, we face an upper limit to how many friends we can have in our inner circle. They say this upper limit of five has likely gone unchanged for hundreds of thousands of years and probably governed social relationships when humans lived as groups of hunters. Whenever we add someone new to our social network, they argue, each new friend is actually slightly more distant than those of the inner circle. It suggests that while we may have just a few friends, we can still surround ourselves with acquaintances.
    Michael Harre and Mikhail Prokopenko, both with the University of Sydney in Australia, said while we may only have five close friends, our social network from them can extend to 132 people. The researchers built computer models to analyze human social networks and then compared them to hunter-gatherer societies. 【F3】They explain that from an evolutionary perspective, it was important to have small groups of close-knit social connections when humans were on hunting expeditions and other dangerous stations. This would mean that we did not have to be as close with the rest of the wider group—as long as we had a strong bond with around 5 others. Even now, as we add or follow others on social media, most new connections are made through meeting friends of others.
    【F4】Writing in the Journal of the Royal Society Interface, the researchers said: humans were probably egalitarian in hunter-gatherer-like societies, maintaining an average maximum of four or five social links connecting all members in a largest social network of around 132 people. As we form new connections and relationships, they become increasingly distant from our "core" starting group. The researchers added that the "social brain hypothesis" describes "neurologically constrained capacity for maintaining long-term stable relationships ".
    The "hunter-gatherer" example shows how social hierarchies can form—you only need to directly know a few people in a large group in order to become a leader figure. 【F5】The researchers say that while social media is changing the number of people we can be connected to—in 2014, the mean average number of Facebook friends was 338—it is unlikely to change the number of friends we actually have.
【F4】
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答案研究者在《英国皇家学会界面杂志》上写道：处在狩猎采集者之类的社会团体中，人类可能会主张平等主义，他们会保持人均四到五个社会联系人，把这些联系人整合起来，我们最多能将社交网络关系扩展至132人左右。
解析 (1)egalitarian译为“主张平等的，平等主义的”。
(2)该句子的一大难点为Journal of the Royal Society Interface的翻译，这是《英国皇家学会界面杂志》。
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