2021考研英語長難句復(fù)習（三十七）

　　

　　But as diet and health improved, children and adolescents have, on average, increased in height by about an inch and a half every 20 years, a pattern known as the secular trend in height.

　　【長難句分析圖解】

　　篇章超精讀

　?、貵rowth, which rarely continues beyond the age of 20, demands calories and nutrients – notably, protein – to feed expanding tissues.

　　②At the start of the 20th century, under-nutrition and childhood infections got in the way.

　?、跙ut as diet and health improved, children and adolescents have, on average, increased in height by about an inch and a half every 20 years, a pattern known as the secular trend in height.

　?、躖et according to the Centers for Disease Control and Prevention, average height – 5′9″ for men, 5′4″ for women – hasn’t really changed since 1960.

　　參考譯文

　?、僭?20 歲后人很少繼續(xù)長高，長高需要熱量和營養(yǎng)，特別是蛋白質(zhì)，以滿足組織增長的需求。

　?、?0 世紀初期，營養(yǎng)不良和兒童傳染病盛行。

　　③但隨著飲食和健康的改善，兒童和青少年的身高平均每 20 年增加約 1.5 英寸，這就是被稱之為身高增長長期趨勢的模式。

　　④然而根據(jù)疾病控制與預(yù)防中心的數(shù)據(jù)(男性 5.9 英尺，女性 5.4 英尺)，從 1960 年以來并沒有改變過。