英语里表示分数后面加of吗

问题描述

精选答案

分数和百分数后面都应该用of：如：two thirds of students, three quarters of students, 80% of students①英语中的分数和汉语中的分数表示法及读法没有很强的对应性,需要认真记忆。

一般情况下,表示分数时,分子要用基数词,分母用序数词(first, second, third ...)。如果分子大于1,分母必须用复数形式。

1. "1/2"或"一半"的表示方法,用one half或a half表示。例如:半英里one (a) half mile或half one (a) mile一个半小时an hour and a half或one and a half hours (hour要用复数形式)2. "1/4"的表示方法,用one (a) quarter表示。如果分子大于1, quarter用复数形式。例如:1/4 one (a) quarter3/4three quarters3.如果分子大于1,分母要用序数词的复数形式。如果分数大于1,要用整数部分+ and + 分数表示,例如:1/3 one third或a third5/6 five sixths8 3/5 eight and three fifths4.②百分数(per cent)百分号％读作percent (per cent),无复数形式,数词要用基数词,应用时常与by连用。例如:数字表示法6%six percent，0.58%(naught) point five eight percent200%two hundred percent，如：The output of petroleum went up by twenty percent.石油产量增长了20％。The price of food was reduced by ten percent. 食品的价格下降了10％。The loss of electricity has been reduced to less than thirty percent.电的损耗减少到30％以下。