序数词
1st = first 2nd = second 3rd = third 4th = fourth 5th = fifth 6th = sixth 7th = seventh 8th = eighth 9th = ninth 10th = tenth
11 = eleven 12 = twelve 13 = thirteen 14 = fourteen 15 = fifteen 16 = sixteen 17 = seventeen 18 = eighteen 19 = nineteen 20 = twenty 21 = twenty-one 22 = twenty-two
数词的表示法—计量表达法(身高年龄长宽高厚深)
1. 主语+be+基数词+单位词(meter, kilometer, foot, inch, kilogram等)+ 形容词. (形容词tall, old, long, wide, high, thick, deep等) 2. 主语+ be+基数词+单位词 + in + 名词. (名词length, width, height, thickness, depth等)
三、年月表示法
1. 世纪可以用 “the+序数词+ century” 表示,也可以用 “the+百位进数加’s” t表he示sixth (6th) century 公元六世纪 公元十八世纪 in the 1900’s 二十世纪 in the 1600’s 十七世纪
2. 年代用 “the+基数词表示的世纪+十 位整数的复数形式表示的年代”构成。
基数词 序数词
基数词
序数词