unit基数词序数词---语法课件.ppt

Unit 2 Grammar Numbers 什么是数词？ 表示数目多少或顺序多少的词叫数词，数词分为基数词和序数词。表示数目多少的数词叫基数词；表示顺序的数词叫序数词。 基数词 Let’s count! 1-10 one two three four five six seven eight nine ten 11-19 eleven twelve thirteen forteen fifteen sixteen seventeen eighteen nineteen Let’s review Dragon 1-100 Look and Read Look and Practice 6,302,876 six million, three hundred and two thousand, eighty hundred and seventy-six 45,690,510,810 forty-five billion ,six hundred and ninety million, five hundred and ten thousand ,eight hundred and ten * * LOGO * * one two three four five six seven eight numbers seven six three zero nine two one eight four five Numbers are widely used. Hello ，--- ten thirty forty seventy sixty One hundred fifty ninety twenty eighty 1 3 2 4 100 one hundred 1,000 one thousand 1,000,000 one million 1,000,000,000 one billion 100???????????????? 2,000?????????????? 30,000????????????? 400,000????????????? 5,000,000????????????60,000,000??????????700,000,000???????? 8,000,000,000??????? 90,000,000,000???????????????????? 100,000,000,000???? Can you read them ? hundred ?thousand ?million billion one?hundred one?thousand ten?thousand one?hundred?thousand one?million ten?million one?hundred?million????? one?billion ten?billion one?hundred?billion tens/ hundreds/thousands/ millions of 一百????? ???????????????????? ?一千 ??????????? ?一万 ???????????????????????????????????????????? 十万? ????? 一百万???? ?????????????????? 一千 万 ???????????????????????? ?一亿 ??????? ?十亿 ????????????? ?一百亿?? ? ????????????????一千亿 数十/百/千/百万 看谁译得快： , Step1:one hundred and twenty-three billion, Step2:four hundred and fifty-six million, Step3:seven hundred and eighty-nine thousand, Step4:one hundred and three 103 789 456 123 , , 625 six hundred and twenty-five 8,961 eight thousand, nine hundred and sixty-one 95,680 ninety-five thousand, six hundred