英語六級-完形語法關(guān)鍵句334. The obesity epidemic began in the 1980s,

334. The obesity epidemic began in the 1980s, and many people attribute it to increased portion sizes and inactivity, but that can't be everything.

譯文　肥胖癥始于20世紀80年代，許多人把它歸因于食物分量的增加和缺乏運動，但這并不是全部原因。

點睛　本句結(jié)構(gòu)較為簡單，句中的epidemic的本義為“傳染病，流行病”，而此處obesity epidemic是指“肥胖癥”。portion的本義為“部分；命運；分配”，但此處意為“（食物的）一份，一客”。inactivity意為“靜止，不活動”。attribute to則指“把……歸因于”。如：

He attributed his failure to bad luck. 他把自己的失敗歸因于運氣差。

考點歸納　與attribute to近義的短語還有：

ascribe sth. to sth.意為“把……歸功于……。如：

He ascribed his success to his years of hard work. 他把自己的成就歸功于多年的努力工作。

put down to意為“歸因于”。如：

His indifference should be put down to his childhood memory. 他的冷漠應(yīng)該歸因于他童年的記憶。

due to意為“歸功于，由于”。如：

Due to his carefulness, the whole team has lost their last chance. 由于他的粗心，整個團隊喪失了最后的機會。