英语听力文摘 English Digest 614、格陵兰岛神奇的计数法

 　　How People In Greenland Learn How To Count

 

　　Kids learn to count on their fingers, because they’re so, well, handy! And it makes sense–most number systems originally developed as people counted using their fingers.

 

　　The counting system of native Greenlanders not only uses all ten fingers, but all ten toes as well! Here’s how it works. The Greenlandic word for the number seven translates as, “second hand, two.” That means you count five on the first hand and add two from the second, to make seven. After you run out of fingers, go for the toes. Thirteen translates as “first foot, three.” That means you add all ten fingers plus three toes.

　　The counting system we use has a base of ten. Larger numbers are simply multiples of ten. For example, ten tens make one hundred. We’re so used to our base ten system that it may seem like the only possibility. But the Greenlandic number system has a base of twenty, and others have a base of five. Of all the number systems ever invented, five, ten, and twenty are the most common bases.

 

　　It’s no coincidence that these bases match the number of fingers on one hand, or two hands, or all of our fingers and toes. The connection between fingers and counting is so close that several languages have just one word that means both “hand” and the number five. Even in English, the word digit¹ describes either a number or a finger. So if anyone teases² you for counting on your fingers, just tell them you find your digits³ quite handy!

1 digit   

n.零到九的阿拉伯数字，手指，脚趾

参考例句：

• Her telephone number differs from mine by one digit.她的电话号码和我的只差一个数字。
• Many animals have five digits.许多动物有5趾。

2 teases   

v.取笑，戏弄( tease的第三人称单数 )；梳理（羊毛等）

参考例句：

• My boyfriend's brother is really out of it; he always teases us. 我男友的弟弟很无聊；他总是捉弄我们。 来自辞典例句
• The little boy teases for ice-cream. 小男孩不住地吵着要买冰淇淋。 来自辞典例句

3 digits   

n.数字( digit的名词复数 )；手指，足趾

参考例句：

• The number 1000 contains four digits. 1000是四位数。 来自《简明英汉词典》
• The number 410 contains three digits. 数字 410 中包括三个数目字。 来自《现代英汉综合大词典》