数词的用法一一基数词的构成基数词的构成 1one11eleven20twenty2two12twelve21twenty-one3three13thirteen30thirty4four14fourteen40forty5five15fifteen50fifty6six16sixteen60sixty7seven17seventeen70seventy8eight18eighteen80eighty9nine19nineteen90ninety10ten 100one/ahundred基数词的读法基数词的读法1 1、百位和十位间用、百位和十位间用 and 连接连接,十位和个位间用十位和个位间用 -连接连接threehundredandtwenty-one3212 2、右往左数、右往左数,三位一组三位一组,逗号隔开逗号隔开.依次是依次是 thousand(千千)1,000million(百万百万)1,000,000billion(十亿十亿)1,000,000,0001.hundredthousand(表示具体数字表示具体数字)millionbillion2.hundredsthousan