成考专升本英语词汇与语法部分五

文章作者 100test 发表时间 2007:02:24 21:12:49
来源 100Test.Com百考试题网


第四节 数 词(3-3~4-1)

  大纲要求

  基数词及其用法;序数词的构成及其用法;分数词的构成;小数的用法。

  一、基数词及其主要用法

  表示数目的词称基数词。15 fifteen,几百几千不加s,242 two hundred and forty-two,5058 five thousand and fifty-eight,9,600,000 nine million six hundred thousand

  1.基数词可以用于数字的计算。

  6 8 = 14 Six plus eight is fourteen.

  9-7 = 2 Nine minus seven is two.

  7X5 = 35 Seven times five is thirty-five.

  8÷4 = 2 Eight divided by four is two.

  2.基数词可以表示人的大致年龄和年代。

  He died in his fifties.

  3.基数词可以用来表达年份、时间、电话号码。

  1700 seventeen hundred

  1814 eighteen fourteen

  4.基数词可以用于编号。

  Number six, line 4, page 19, Bus(No.) 332, Platform (No.) 5, Room 101

  5.基数词可以和其他词一起构成合成形容词,在句子中作定语。

  A one-month-old baby can recognize its mother by smell.

  This eleven-month-old baby can speak a few words.

  (The baby is eleven months old.)

  The teacher asked us to write a four-thousand-word essay as our homework.

  (There are four thousand words in the essay.)

  二、序数词及其主要用法

  表示顺序的词称为序数词。如first, second, third, fourth, ninth, twenty-first, forty-fifth等。

  序数词可以用来表示日期和世纪。May the first / the first of May (5.1) , August the eighth / the eighth of August (8.8) , the twentieth century, the twenty-first century

  序数词在句子中前面一般加the

  The first of October is our National Day.

  She was the third to arrive.

  序数词在句子中前面加不定冠词,表示“再一”又一“。

  Theyll have to do it a second time.

  Shall I ask him a third time?

  When he sat down , a fourth man rose to ask.


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