2014年成人高考专升本英语词汇知识梳理数词(2)

来源：: 江西成考网
发布日期: 2017年07月23日

摘要：　　数词　　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

mework.

　　(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“。

　　They'll have to do it a second time.

　　Shall I ask him a third time?

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