内容正文:
专题四:数词
基数词的构成
基数词
基数词的用法
数词
序数词
序数词的构成
数词的应用
序数词的用法
知识点1:基数词
1. 基数词的构成
1 one
11 eleven
20 twenty
100 a/one hundred
2 two
12 twelve
30 thirty
200 two hundred
3 three
13 thirteen
40 forty
1000 a/one thousand
4 four
14 fourteen
50 fifty
2000 two thousand
5 five
15 fifteen
60 sixty
1,000,000 a/one million
6 six
16 sixteen
70 seventy
2,000,000 two million
7 seven
17 seventeen
80 eighty
10,000,000 ten million
8 eight
18 eighteen
90 ninety
100,000,000 a/one hundred million
9 nine
19 nineteen
1000,000,000 a/one billion
10 ten
2000,000,000 two billion
(1)21~99之间非整十的基数词需在十位和个位之间加连字符“-”。
21 twenty-one 36 thirty-six 95 ninety-five
(2)100~999之间非整百的基数词需先写百位,后加and,再加百位后面的数。
321 读作 three hundred and twenty-one 695 读作 six hundred and ninety-five
(3)1000以上的数字需从右向左数,每三位数加一个逗号或空格分隔成若干段,从右向左数,第一段前的数用thousand(千),第二段前的数用million(百万),第三段前的数用billion(十亿)。
6321 读作 six thousand, three hundred and twenty-one
695,321 读作 six hundred and ninety-five thousand, three hundred and twenty-one
5,032,321 读作 five million, thirty-two thousand, three hundred and twenty-one
42,530,032,321 读作 forty-two billion, five hundred and sixty million,thirty-two thousand, three hundred and twenty-one
2. 基数词的句法功能
Seven and eight makes fifteen. 7+8=15 (作主语)
I need three altogether. 我总共需要三个。 (作宾语)
He is sixteen. 他十六岁了。 (作表语)
I have three apples. 我有3个苹果。 (作定语)
They three tried to finish the task before sunset. (作同位语)
他们三个人尽力想在日落前完成任务。
3. 基数词的用法
(1) 表示确切的数量时,hundred、thousand、million等前加具体的数词,要用单数形式。
three thousand 3000 five hundred 500
(2) 表示不确切的数量时,用“hundreds,thousands, millions+of”表示概数,与of连用时,前面不可以出现具体的数字修饰。
Thousands of people attended the funeral. 数千人参加了葬礼。
The problem is millions of people are unemployed. 问题是,大批的人都失业了。
The song is translated to several hundreds of languages. 该曲被翻译成几百种文字。
(3) dozen与s