何凯文每日一句：2018考研英语第128句

 　　每一场考研路都有成败，希望考生们能不忘初心，坚持当初决定考研的信仰。何凯文每日一句会全程陪伴考生，走完2018考研路。对于考研英语的复习，必然是长期积累夯实基础的过程，针对考研英语复习，小编也会及时整理推送相关内容。以下是第128句：

　　今天的句子：

　　Even loneliness’s tendency to make people retreat inward and become self-centered may have served an evolutionary purpose, as hunter-gatherers who suddenly found themselves alone in the wild would have benefited from a heightened sense of self-preservation.

　　句子的解析：

　　词汇突破：

　　1.Loneliness 孤独

　　2.Tendency 倾向

　　3.Retreat 退避

　　4.Self-centered 自我的

　　5.Serve a purpose 有助于;有意义

　　6.Evolutionary 进化的

　　7.Heightened 增强的

　　8.Preservation 保护

　　9. hunter-gatherers(多指原始社会) 依靠狩猎和采集生活的人

　　确定主干：

　　Even loneliness’s tendency may have served an evolutionary purpose.

　　切分成分：

　　1.to make people retreat inward and become self-centered后置定语;修饰tendency

　　2.as hunter-gatherers …would have benefited from a heightened sense of self-preservation状语从句

　　3.who suddenly found themselves alone in the wild定语从句;修饰hunter-gatherers

　　Who=hunter-gatherers

　　参考译文：甚至是令人内敛和为自我为中心的孤独倾向也拥有进化意义，就像突然发现自己独处野外的狩猎采集人一样，他们会受益于更强烈的自我保护意识。