Nowdays ___ of business letters are written in English.

题目

Nowdays ___ of business letters are written in English.
英语填空.A.two third B.two thirds C.two three D.second three

答案

答案是B
这个主要问题是分数的表达形式
第一：分数是由基数词和序数词一起来表示的.基数词作分子,序数词作分母,除了分子是“1”以外,其它情况下序数词都要用复数形式.
3/4 three fourths或 three quarters
1/3 one third或a third
24/25 twenty-four twenty-fifths
3 1/4 three and one fourth或 three and one quarter
1/2 a half
1/4 one quarter或a quarter
1 1/2 one and a half
1 1/4 one and a quarter
第二：当分数后面接名词时,如果分数表示的值大于1,名词用复数；小于1,名词用单数.
1 1/2 hours 一个半小时（读作 one and a half hours）
2 3/4 meters 二又四分之三米（读作two and three-fourths meters） 4/5 meter 五分之四米
5/6 inch 六分之五英寸