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英语写作中的数字处理

Posted by loong on 2014/03/12 in 英语学习 |

在英语写作中处理数字时什么情况下用阿拉伯数字,哪些情况下又要用英语单词表述?以前还真没注意过,今天看了几篇关于这个问题的文章才知道在以英语为母语的国家,在书写数字时已形成几条约定俗成的规则,记录在此备忘,同时也和大家分享。
一、个位数(即1至9)用单词表示,个位数以上(大于等于10)的数目用阿拉伯数字(也有的以100为界限)。即使在同一句话中同时有个位数和个位以上的数,也遵守此规则。例如:
I had two beers before the fireworks started.
He hung up 15 flags.
There were 12 waffle balls when this game started, and now there’s only seven. Stop hitting homeruns!

二、年纪永远都用阿拉伯数字。例如:
The girl was 22 years old.
His baby is 8 months old.

三、人数用阿拉伯数字表示显得更简洁明了,但不定数量、近似值用单词表示较恰当。例如:
There are 203817 voters on the electoral rolls.
Nearly thirty thousand voters took part in this election.

四、遇到日期、百分比、带单位的特殊数字,通常用阿拉伯数字。例如:
3 March 1991
a discount of 5 percent
ordered 2 pounds of minced steak
如果涉及的数目和单位是不定数,可用单词表示。例如:
about five miles per hour.
I have warned you a hundred times.
at least ten yards away.

五、句首为数字时用单词拼写形式而不用阿拉伯数字形式,句末也要尽量避免用阿拉伯数字。例如:
Nineteen couples took part in the ballroom dancing competition.
Sixty percent profit was reported.

六、遇到分数,可用带连字符号的单词表示。例如:
At 1east two-thirds of the class have had colds.
Nitrogen forms about four-fifths of the atmosphere.

七、在科技文章中,数字频繁出现,用阿拉伯数字比用单词陈述更有利。例如:
The new engine has a capacity of 4.3 litres and a power output of 153 kilowatts at 4400 revolutions per minute.

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