英语基数词
0 zero、1 one、2two、3 three、4 four、5 five、6 six、7 seven、8 eight、9 nine、10 ten、11 eleven、12 twelve、13 thirteen等。表示数目的词称为基数词,常见的基数词还有如下:
101 one hundred and one;
320 three hundred and twenty;
765 seven hundred and sixty-five;
200 two hundred;
300 three hundred;
400 four hundred;
500 five hundred;
1,000 one thousand;
1,001 one thousand and one;
2,000 two thousand;
2,034 two thousand and thirty-four;
2,648 two thousand six hundred and forty-eight;
500,000 five hundred thousand;
1,000,000 one million;
8,000,000 eight million;
47,000,000 forty-seven million;
900,000,000 nine hundred million;
13,789,653 thirteen million seven hundred and eighty-nine thousand six hundred and fifty-three;
16,250,064 sixteen million two hundred and fifty thousand sixty-four;
10,000,000,000 ten billion;
200,000,000,000 two hundred billion;5,237,166,234 five billion,two hundred and thirty-seven million,one hundred and sixty-six thousand,two hundred and thirty-four。
大家可发现,基数词之间是有规律可循的,例如
①1-12之间是没有规律的,1 one、2two、3 three、4 four、5 five、6 six、7 seven、8 eight、9 nine、10 ten、11 eleven、12 twelve;
②13-19都是以teen为结尾的,13 thirteen、14 fourteen、15 fifteen、16 sixteen、17 seventeen、18 eighteen、19 nineteen;
③20-90都是以ty结尾的,20 twenty、30 thirty、40 forty、50 fifty、60 sixty、70 seventy、80 eighty、90 ninety;
④21-99十位和个位之间要加连接符号“-”,21 twenty-one、22 twenty-two、23 twenty-three;
⑤101-999百位与十位之间通常用and,个数基数词前要加“hundred”。101 one hundred and one;648 six hundred and forty-eight;320 three hundred and twenty;
⑥而千以上,从数字的右端向左端数起,每三位数要加一个逗号“,”。从右开始,第一个“,”前的数字后添加thousand,第二个“,”前面的数字添加million,第三个“,”前的数字添加billion。然后一节一节分别表示,两个逗号之间最大的数为百位数形式。
6,502 six thousand five hundred and two;45,672 forty-five thousand six hundred and seventy-two;
5,237,166,234 five billion,two hundred and thirty-seven million,one hundred and sixty-six thousand,two hundred and thirty-four。