题目内容
12．Nowadays of business letters are written in English．？（ ）| A． | two-third | B． | two-thirds | C． | two-three | D． | two-threes |
分析 如今有三分之二的商业信函是用英语写的．
解答 答案：B．
根据题干"如今有三分之二的商业信函是用英语写的．"判断句中要使用分数三分之二，分数表达法是：分子用基数词，分母用序数词，如果分子大于1，分母要加-s，所以三分之二的正确表达为：two thirds．故选B
点评 本题考查数词的用法，要注意基数词，序数词与分数的用法，在平时的学习中注意积累与运用，达到熟练掌握的目的．
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