初中英语知识归纳总结-数词

快考3652026-07-09 17:28 5 浏览
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  一、基数词

  基数词表示数量

  one eleven twenty twenty-one a hundred

  two twelve thirty thirty-eight a thousand

  three thirteen forty fifty-three a million

  four fourteen fifty a billion

  five fifteen sixty

  six sixteen seventy

  seven seventeen eighty

  eight eighteen ninety

  nine nineteen

   ten

   注意:表示具体数目的hundren, thousand, million等均不用复数,百位数和十位数之间通常加连词and;十位数与个位数之间要加连字符。

  二、序数词

  first eleventh twentieth twenty-first a hundred and fifty-third

  second twelfth thirtieth ninety-ninty

  third thirteenth fortieth

  fourth fourteenth fiftieth

  fifth fifteenth sixtieth

  sixth sixteenth seventieth

  seventh seventeenth eightieth

  eighth eighteenth ninetieth

  ninth nineteenth hundredth

  tenth

  序数词的缩写形式:由阿拉伯数字后加上序数词的最后两个字母。

  first---1st second --- 2nd tenth --- 10th

  三、时间和年月日表示法

  1、时间均用基数词表示:

  1)顺读法,先说“点钟”,再说“分钟”,如:

  2:15 two fifteen 6:20 six twenty

  2)逆读法

  30分钟以内:“分钟数+ past +钟点数”,如:

  3:20 --- twenty past three 2:10 --- ten past two

  半小时用 half,15分钟用 a quarter :

  2:15 --- a quarter past two 3:30 --- half past three

  30分钟以外要用:“分钟数+ to + 下一个钟点”,如:

  4:35 --- twenty-five to five 2:55 --- five to three

  2)年月日表示法

  年份读法;月日读法;年月日一起读法。

   四、分数的表示法

   当分数中表示分子的数只含个位数时一般采用“分子(用基数词)+分母(用序数词)”表示。(分子大于1时,分母序数词用复数)如:

  one-third; two-thirds; three twenty-seconds

  五、数词与名词的搭配

  1)数词与名词连用时,它们的次序是“名词+基数词”

  Lesson 15; Room 1506 或者用“the + 序数词 + 名词”

  The Fifteenth Lesson the third floor

  2)数词与小时的搭配

  two hours and a half three hours

  half an hour

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