天天看点

英语语法-numeral数词

numeral数词

分类:基数词和序数词;

作句子的主语、宾语、表语和定语;

一、基数词

表示数目的词;

一千,one|a thousand;

一万,ten thousand;

十万,one hundred thousand;

百万,one million;

千万,ten million;

亿,one hundred million;

十亿,billion;

百亿,ten billion;

千亿,one hundred billion;

万亿,trillion;

数字的正确表达:

1、大数字从右向左看;

2、每隔三位划一逗号;

3、倒数第一个逗号之前要用thousand,倒数第二个逗号之前要用million,倒数第三个逗号之前要用billion,倒数第四个逗号之前要用trillion;

4、百位与十位之间加and;

注意:

1、hundred|thousand|million作数词时,不用复数;

2、前面可加上one|two...等其它数词;

3、用作名词时复数表示“成...上...”,后面必须有of,前面可以加上some|many|several等词,five hundred,hundreds of好几百,some thousands of好几千,four thousands of四千左右;

例:七百八十二亿四千零八万四千七百六十九

78240084769-->78,240,084,769

seventy eight billion two hundred and fourty million eighty four thousand seven hundred and sixty nine

例:18,911,758,546

18 billion9 hundred and 11million 7 hundred and 58 thousand5 hundred and46

二、序数词

表示顺序的数词;

1000th --> one thousandth;

1000000th --> one millionth:

第703 --> the seven hundred and third;

第5480 --> the five thousand four hundred and eightieth;

注意:

1、两位以上的序数词个位数部分用序数词,其余部分用基数词;

2、使用序数词时一般加定冠词the;

thirty-sixth

I'm in the third grade.

3、序数词作“几分之几”有复数形式;

1/5 --> one fifth

2/3 --> two thirds

4、hundred|thousand|million作数词时,不用复数,前面可以加上one|two...等其它数词;

用作名词时,复数表示“成...上...”,后面必须要有of,前面可以加上some|many|several等词;

five hundred

hundreds of成百上千的

三、数词用法归纳

1、表示年份

2002,two thousand and two;

1976,nineteen seventy-six;

2、表示日期

12月1日,Dec.1st或the first of December;

2002年11月8日,Nov. 8th, 2002.;

3、表示时刻

5:15,five fifteen或a quarter past five;

8:30,eight thirty或half past eight;

10:45,ten forty-five或a quarter to eleven;

4、表示编号

Room 105,Room one o five;

Bus No.13,Bus Number Thirteen;

P.5,Page Five;

Tel.No.7658659,Telephone Number seven-six-five-eight-six-five-nine;

5、小数的读法

5.7,five point seven

0.16,zero point one six

6、“半”的表达

1/2,half

半小时,half an hour;

1.5小时,one and half hours或one hour and a half;

7、序数词前面加the时表示“顺序”,加a/an时表示“再一,又一”

The third lesson is rather difficult.

Shall we read the text a third time?

习题

1、My cousin's birthday in on thefirstof October.

日期的表达2004年11月8日

美式:月/日/年,November eighth, 2004

英式:日/月/年,8th November, 2004或the eighth of November, 2004

2、What date is it today? It's the 12thof April.

3、There are some hundreds ofbooks in our classroom.

4、We live inthe twenty-first century.

5、He joined the army onthe firstof May 1980.

6、September is the ninthmonth of the year.

7、December the twenty-fifthis Christmas.

8、There arefivepeople in my family. We lie on thesixthfloor in a tall building.

9、My father returned at 10 0'clock on the nightof June 15.

继续阅读