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8.4 数词

第四节 数 词


一、数词的分类: 数词分为序数词(one, two, three, four...)、基数词(first, second, third, fourth...)和分数词(one third, two thirds, four fifths...)。表示单一的数词与单数名词连用,但有些数词和名词连用,表示复数时仍用单数形式

    four dozen eggs(四十八个鸡蛋), two score people (四十个人), three hundred years(三百年), a few thousand horses (好几千匹马), eight million pounds (八百万英磅)。
    注意:被这些数词修饰的名词一定是复数,反过来,如果被修饰的名词是复数,那么就用数词的单数形式,如 a(one) thousand years:

  1. Both as [A] a hobby and as a profession, photography has fascinated [B] people for more [C] than hundred (X2][D] years.

二、关于"千""百""百万"的数词: 如果"hundred"、"thousand"和"million"前边没有表示数字和其他限定词修饰时(如"a few"、"one"、" ten"等),则可用复数形式,表示不定数,后面再加"of+名词":hundreds of (数以百计的),thousands and thousands of (成千上万的),millions of (数以百万计的)

三、关于连字符连接的数词: 在连字符连接的"数词+普通名词+形容词"中,"数词"和"普通名词"都要用单数形式

    a threeyearold boy, a twomilelong walk

  1. In the zoo there was _____ .
    [A] a hundredyearsold elephant
    [B] hundredyearold elephant
    [C] a hundredyearsaged elephant
    [D] a hundredyearold elephant
  2. In 1931, Duke Ellington broke [A] the traditional threeminutes [B] time limit set for [C] commercial [D] records.
  3. This estimate [A] of spending will hardly [B] keep pace with even the most optimistic [C] projections of inflation for the fouryears [D] period.

四、基数词中表示"几十"的复数形式可以表达人的岁数或年代

    He is in his late twenties. 他快30了。
    The old bag lady died in her early fities beside a church in New York. 那要饭的老太太50来岁就死在了纽约的一个教堂附近。

五、分数词:分数词是由基数词和序数词组成的,分子是基数词,分母是序数词。除了表示"1"以外,分母序数词都用复数

  1. _____of the students have successfully passed the final exam.
    [A] Two thirds
    [B] Twos third
    [C] Two third
    [D] Twos thirds

六、百分数: 表示百分比的percent用单数,如ninty percent(90%)

  1. It has been estimated [A] that almost sixty percents [B] of the land [C] at the Badlands National Monument is devoid of(缺乏,没有) [D] vegetation.

七、例题解析

  1. D错。 改为than a hundred。
  2. D为正确答案。数词hundred和名词year都要求用单数形式。
  3. B错。改为"threeminute"(三分钟的)。
  4. D错。 改为fouryear。
  5. A为正确答案。
  6. B错。 改为percent。