学习必备欢迎下载英语中基数词与序数词的区别和用法一、 数词的分类1. 基数词表示数目的词称为基数词。其形式如下:A.从 1——10one,two,three,four,five,six,seven,eight,nine,ten.B.从 11——19eleven,twelve, thirteen, fourteen, fifteen, sixteen, seventeen,eighteen, nineteen这里除 eleven, twelve, thirteen, fifteen, eighteen 为特殊形式外,fourteen,sixteen,seventeen,nineteen 都是由其个位数形式后添加后缀-teen 构成。C.从 21——99整数几十中除 twenty,thirty, forty,fifty,eighty 为特殊形式外,sixty,seventy,ninety 都是其个位数形式后添加后缀-ty 构成。表示几十几时,在几十和个位基数词形式之间添加连字符“-”21 twenty-one76 seventy-sixD.百位数个数基数词形式加“hundred”,表示几百,在几十几与百位间加上 and.101 a hundred and one320 three hundred and twenty648 six hundred and forty-eightE.千位数以上从数字的右端向左端数起,每三位数加一个逗号“,”。从右开始,第一个“,”前的数字后添加 thousand,第二个“,”前面的数字后添加 million,第三个“,”前的数字后添加 billion。然后一节一节分别表示,两个逗号之间最大的数为百位数形式。2,648 two thousand six hundred and forty-eight16,250,064 sixteen million two hundred and fifty thousand sixty-four5,237,166,234 five billion,two hundred and thirty-seven million,one hundred and sixty-sixthousand,two hundred and thirty-fourF.基数词在表示确切的数字时,不能使用百、千、百万、十亿的复数形式;但是,当基数词表示不确切数字,如成百、成千上万,三三两两时,基数词则以复数形式出现。There are hundreds of people in the hall.大厅里有数以百计的人。Thousands and thousands of people come to visit the Museum of Qin Terracotta Warriors andHorses every day.每天有成千上万的人来参观秦兵马涌博物馆。They went to the theatre in twos and threes.他们三三两两地来到了剧院。学习必备欢迎下载G.表示人的不确切岁数或年代,用几十的复数形式表示。He became a professor in his thirties.他三十多岁时成为了教授。She died of lung cancer in forties....