2021考研英語(yǔ)長(zhǎng)難句復(fù)習(xí)（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(zhǎng)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.

　?、贏t the start of the 20th century, under-nutrition and childhood infections got in the way.

　　③But 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(zhǎng)高，長(zhǎng)高需要熱量和營(yíng)養(yǎng)，特別是蛋白質(zhì)，以滿足組織增長(zhǎng)的需求。

　　②20 世紀(jì)初期，營(yíng)養(yǎng)不良和兒童傳染病盛行。

　?、鄣S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(chēng)之為身高增長(zhǎng)長(zhǎng)期趨勢(shì)的模式。

　?、苋欢鶕?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(lái)并沒(méi)有改變過(guò)。