一、数词的分类
1. 基数词
基数词用来表示数目，或者说表示数量的词叫基数词。最基本的基数词如下：
表示数目的词称为基数词.其形式如下：
A．从1——10
one,two,three,four,five,six,seven,eight,nine,ten．
B．从11——19
eleven,twelve, thirteen, fourteen, fifteen, sixteen, seventeen,eighteen, nineteen．
这里除eleven, twelve, thirteen, fifteen, eighteen为特殊形式外,fourteen,sixteen,seventeen,nineteen都是由其个位数形式后添加后缀-teen构成.
C．从21——99
整数几十中除twenty,thirty, forty,fifty,eighty为特殊形式外,sixty,seventy,ninety都是其个位数形式后添加后缀-ty构成.表示几十几时,在几十和个位基数词形式之间添加连字符“-”
21 twenty-one
76 seventy-six
D．百位数
个数基数词形式加“hundred”,表示几百,在几十几与百位间加上and．
101 a hundred and one
320 three hundred and twenty
648 six hundred and forty-eight
E．千位数以上
从数字的右端向左端数起,每三位数加一个逗号“,”.从右开始,第一个“,”前的数字后添加thousand,第二个“,”前面的数字后添加million,第三个“,”前的数字后添加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.
2,648 two thousand six hundred and forty-eight
16,250,064 sixteen million two hundred and fifty thousand sixty-four
5,237,166,234 five billion,two hundred and thirty-seven million,one hundred and sixty-six thousand,two hundred and thirty-four
F．基数词在表示确切的数字时,不能使用百、千、百万、十亿的复数形式；但是,当基数词表示不确切数字,如成百、成千上万,三三两两时,基数词则以复数形式出现.
Three hundred people/five thousand years.
There are hundreds of people in the hall．
大厅里有数以百计的人.
Thousands and thousands of people come to visit the Museum of Qin Terra-Cotta Warriors and Horses every day．
每天有成千上万的人来参观秦兵马涌博物馆.
They went to the theatre in twos and threes．
他们三三两两地来到了剧院.
G．表示人的不确切岁数或年代,用几十的复数形式表示.
He became a professor in his thirties．
他三十多岁时成为了教授.
She died of lung cancer in forties．
她四十来岁时死于肺癌.
It was in the 1960s．
那是在二十世纪六十年代.
H．基数词的句法功能
基数词在句中可作主语、宾语、定语、表语、同位语.
The two happily opened the box．
两个人高兴地打开了盒子.（作主语）
I need three altogether．
我总共需要三个.（作宾语）
Four students are playing volleyball outside．
四个学生在外面打排球.（作定语）
We are sixteen． / three and five is eight .
我们是16个人.（作表语）
They three tried to finish the task before sunset．
他们三个人尽力想在日落前完成任务.（作同位语）
注：编了号的事物要用基数词表示顺序，但是基数词要后置。
第一课Lesson one 第三十二页Page 32 第305房间Room 305 第12路公共汽车 Bus NO.12
2. 序数词
表示顺序的词称为序数词.序数词的主要形式：
A．从第一至第十九
其中,one—first, two—second, three—third, five—fifth,eight—eighth,nine—ninth,twelve—twelfth为特殊形式,其它的序数词都是由其相对应的基数词后面添加“th”构成.例如：six —sixth、nineteen—nineteenth．
B．从第二十至第九十九
整数第几十的形式由其对应的基数词改变结尾字母y为i,再加“eth”构成. twenty——twentieth thirty——thirtieth
表示第几十几时,用几十的基数词形式加上连字符“－”和个位序数词形式一起表示. thirty-first 第三十一
fifty-sixth 第五十六
seventy-third 第七十三
ninety-ninth 第九十九
C．第一百以上的多位序数词
由基数词的形式变结尾部分为序数词形式来表示.
one hundred and twenty-first 第一百二十一
one thousand,three hundred and twentieth 第一千三百二十
D．序数词的缩写形式
有时,序数词可以用缩写形式来表示.主要缩写形式有.
first——lst second——2nd third——3rd
fourth——4th sixth——6th twentieth——20th
twenty-third——23rd
其中lst,2nd,3rd为特殊形式,其它的都是阿拉伯数字后加上th.
E．序数词的句法功能
序数词在句中可作主语、宾语、定语和表语.
The second is what I really need．
第二个是我真正需要的.（作主语）
He choose the second．
他挑选了第二个.（作宾语）
We are to carry out the first plan．
我们将执行第一个计划.（作定语）
She is the second in our class．在我们班她是第二名.（作表语）
注：序数词在使用时,通常前面要加定冠词the；但是如果序数词前出现不定冠词a或an时,则表示“再——”,“又——”.
We/’ll go over it a second time．
我们得再念第二遍.
We/’ve tried it three times．Must we try it a fourth time?
我们已经试过三遍了,还必须试一次（第四次）吗?
另外,基数词也可以表示顺序.只需将基数词放在它所修饰的名词之后即可,不需要添加定冠词.
the first lesson——Lesson One
the fifth page——Page 5（five）
the twenty-first room——Room 21（twenty-one）
二、时刻表示法
1. 表示几点钟用基数词加可以省略的o’clock
5:00 读作five o/’clock 或five
2. 半小时用half，一刻钟用a quarter，半小时以内用past，超过半小时用to。
02:30 half past two
five past seven 七点过五分
half past six 六点半
a quarter past eight 八点过一刻
seven past eight 八点过七分3. 表示几点差几分,在分钟后面加to,再加小时
ten to eight 差十分八点（七点五十分）
a quarter to twelve 差一刻十二点（十一点四十五分）
twenty to six 差二十分六点（五点四十分）
在日常生活中,常用下列简单方法表示时间.
以小时、分种为单位分别读出数字.
6:31 读作six thirty-one
10:26 读作ten twenty-six
14:03 读作fourteen o three
16:15 读作sixteen fifteen
18:30 读作eighteen thirty
23:55 读作twenty-three fifty-five
注：时刻表上的时间大多采用24小时表示法,这样就不需要用a.m.表示上午,p.m.表示下午了.
三、年月表示法
1. 世纪可以用定冠词加序数词加世纪century表示,也可以用定冠词加百位进数加/’s表示the sixth（6th）century 公元六世纪
the eighteenth（18th）century 公元十八世纪
the 1900’s 二十世纪
the 1600’s 十七世纪
这里,用百位数整数表示的世纪比这一百位阿拉伯数字本身多一个世纪.
2. 年代用定冠词及基数词表示的世纪加十位整数的所有格或复数形式构成
in the 1930’s/1930s（in the thirties of the twentieth century或in the nineteen thirties）
在二十世纪三十年代
in the 1860’s/1860s（in the sixties of the 19th century或in the eighteen sixties）
在十九世纪六十年代
In the 1870/’s when Marx was already in his fifties,he found it important to study the situation in Russia,so he began to learn Russian．
在十九世纪七十年代当马克思已经五十多岁时,他发现研究俄国的形势很重要,便开始学习俄语.
3. 表示某年代的早期、中期和晚期,可以在定冠词后,年代前添加early, mid-,late
in the early 1920/’s 在二十世纪二十年代早期
in the mid-1950/’s 在二十世纪五十年代中期
4. 年月日表示法
A．年份用基数词表示,一般写为阿拉伯数字,读时可以以hundred为单位,也可以以世纪、年代为单位分别来读.
1949 读作nineteen hundred and forty-nine 或nineteen forty-nine
1800 读作eighteen hundred
253 读作two hundred and fifty-three或two fifty-three
1902 读作nineteen hundred and two或nineteen o two
表示在哪一年,一般在年数前加介词in,使用year时,year放在数词之前.
in the year two fifty-three B.C. 在公元前253年
但是,通常采用in加表示年份的阿拉伯数字.
B. 月份,在哪个月用介词in加第一个字母大写的月份词表示.例如：in May在五月；in July 在七月.为了简便起见,月份与日期连用时,月份常用缩写形式表示.缩写形式除May,June,July 外,其它的月份都由其前三个字母表示,但September除外.
January——Jan．一月February——Feb．二月
March——Mar. 三月April——Apr．四月
August——Aug．八月
September——Sept．九月
October——Oct．十月
November——Nov．十一月
December——Dec．十二月
注：这里缩写形式后面加点不能省略,因为它是表示缩写形式的符号.
C．日期用定冠词the加序数词表示.在哪一天要添加介词on.
National Day is on Oct. 1.
国庆节是十月一日.（读作October first）
此句也可以表示为National Day is on the 1st of October．
May 5 五月五日（读作May fifth）
也可以表示为the fifth（5th）of May
Mar. 1（st）三月一日（读作March first或the first of March）
5. 表示不具体、不确切的时间,如世纪、年代、年份、月份时,用介词in表示,表示具体确切的某一天用介词on表示通常情况下morning,afternoon,evening等词前用介词in.但是,当这些词前后有一修饰限定的词作为定语,把它们限定为某一天早晨、下午或晚上时,介词in应改
为on.这里的修饰限定词可以是介词短语、名词、形容词、定语从句等.
On a cold morning,the old man died lonely in his house．
在一个寒冷的早晨,这个老人孤独地死在自己的房子里.
I don/’t want to be disturbed on nights when I have to study．
我不愿意在我必须学习的晚上被打扰.
The accident happened on the afternoon of July 7．
这次事故发生在7月7日下午.
We are to have a small test on Monday morning．
星期一早晨我们将进行一次小测验.
注: in the 1870s/1870’s
In one’s thirties
四、加减乘除表示法
1. “加”用plus,and或add表示；“等于”用is,make,equal等词表示.
2+3=? 可表示为：How much is two plus three?
2+3=5
Two plus three is five．
Two and three is equal to five．
Two and three make five．
Two added to three equals five．
If we add two to/and three, we get five．
二加三等于五
2. “减”用minus或take from表示
10－6＝? How much is ten minus six?
10-6=4
Ten minus six is four．
Take six from ten and the remainder is four.
Six (taken) from ten is four．
十减去六等于四
3. “乘”用time（动词）或multiply表示
3X4＝? How much is three times four?
3X4=12
Three times four is/are twelve．
Multiply three by four,we get twelve．
Three multiplied by four makes twelve．
三乘以四等于十二
4. “除”用divide的过去分词形式表示
16÷4=? How much is sixteen divided by four?
16÷4＝4
Sixteen divided by four is four．
Sixteen divided by four equals/gives/makes four．
十六除以四等于四.
五、分数表示法
1. 分数是由基数词和序数词一起来表示的.基数词作分子,序数词作分母,除了分子是“1”以外,其它情况下序数词都要用复数形式.
3/4 three fourths或three quarters
1/3 one third或a third
24/25 twenty-four twenty-fifths
3 1/
4 three and one fourth或three and one quarter
1/2 a half
1/4 one quarter或a quarter
1 1/
2 one and a half
1 1/4 one and a quarter
2. 当分数后面接名词时,如果分数表示的值大于1,名词用复数；小于1,名词用单数.
1 1/
2 hours 一个半小时（读作one and a half hours）
2 3/4 meters 二又四分之三米（读作two and three-fourths meters）
4/5 meter 五分之四米
5/6 inch 六分之五英寸
3. 表示“n次方”的说法：指数用序数词,底数用基数词.
10的7次方the seventh power of ten（ten to the seventh power）
6的10次方the tenth power of six（six to the tenth power）
六、小数表示法
1. 小数用基数词来表示,以小数点为界,小数点左首的数字为一个单位,表示整数,数字合起来读；小数点右首的数字为一个单位,表示小数,数字分开来读；小数点读作point,o读作zero 或o〔ou〕,整数部分为零时,可以省略不读.
0.4 zero point four或point four 零点四
10.23 ten point two three 十点二三
25.67 twenty-five point six seven 二十五点六七
l.03 one point o three 一点零三
2. 当数字值大于1时,小数后面的名词用复数,数字值小于1时,小数后面的名词用单数. 1.03 meters 一点零三米0.49 ton 零点四九吨
l.5 tons 一点五吨
七、百分数表示法
百分数用基数＋percent表示
50％fifty percent 百分之五十
3％three percent 百分之三
0.12％zero point one two percent 百分之零点一二
这里的percent前半部per表示“每一”,cent这一后半部分表示“百”,所以百分之几中percent 不用复数形式.
八、数量表示法
1. 表示长、宽、高、面积等,用基数词+单位词（meter,foot,inch,kilogram等）+ 形容词（long,wide,high等）表示,或者用基数词+单位词+ in + 名词（length, width, height, weight 等）表示.
two meters long或two meters in length 2米长
three feet high或three feet in height 3英尺高
four inches wide或four inches in width 4英寸宽
This box is 2 kilograms in weight．
这个盒子有两千克重.
The city wall of Xi/’an is 12 meters wide and 12 meters high．
西安城墙是12米宽,12米高.
2. 表示时间、距离时,使用含数词的名词所有格形式作定语.
five minutes’walk
步行五分钟（的距离）
It’s an hour’s ride from my hometown to our university．
从我的家乡到我们大学是乘车一小时的路程.
或：从我的家乡到我们大学需要乘车一小时.
It’s three kilometers’distance from our campus to the Bell Tower.
从我们校园到钟楼有三公里远.
3. 表示温度时,用below zero表示零下温度,温度用基数词+degree（s）+单位词（centigrade 摄氏或Fahrenheit华氏）表示.
thirty-six degrees centigrade或36℃摄氏36度
four degrees below zero centigrade或-4℃摄氏零下4度
Water freezes at thirty-two degrees Fahrenheit．
水在华氏三十二度时结冰.
Water boils at one hundred degrees centigrade．
水在摄氏一百度时沸腾.
这里的单位词在人们都很清楚是什么度量制度时,可以省略.
You are 37℃．（读作thirty-seven degrees）
你是三十七度.（摄氏）
It/’s seven degrees below zero．
今天是零下七度.（摄氏）
4. 由数词和其他名词构成的名词性短语作定语时,其中的名词用单数形式,名词性短语中各部分间要用连字符“-”来连接.
It’s a five-minute walk from the library to the playground．
从图书馆到操场需要走五分钟.
She’s a sixteen-year-old girl．
她是个十六岁的女孩.
5. 表示“比···大（或）几倍”的说法.
This room is two times bigger than that one．
这个房间比那个（房间）大两倍.
The dictionary is four times thicker than that book．
这本词典比那本书厚四倍.
My age is two times older than his．
我的年龄比他大两倍
6、编号既可以用序数词，也可以用基数词。如：
The tenth lesson = Lesson Ten 第十课
The fiftieth page = Page 50 第五十页
有的编号习惯上用基数词。如：
Room 321 321 号房间
Tel. No. 4013586 电话号码4013586
Bus No.968 968路公共汽车
数词练习
一、单项选择
1._______ people go swimming in summer in Dalian.
A. Thousands
B. Thousands of
C. Thousands of
D. Thousand
2._____ the students will take part in this English speech contest.
A. Two hundred of
B. Two hundreds of
C. Hundreds of
D. Hundred of
3. ------How many teachers are there in your school ?
-----_____, but I’m not sure.
A. Hundreds
B. Hundred
C. Hundreds of
D. One hundred
4.Rose received a letter full of love from her parents on her ________ birthday .
A. sixteen
B. sixteen’s
C. sixteenth
D. sixteenths
5.Helen loves reading. She has read _____ books this month .
A. five
B. fifth
C. five of
D. fifth of
6. I live in Room 402. Sam lives in the room right t above mine, on the ______ floor.
A. third
B. three
C. fifth
D. five
7.It’s my ______ time to come to the bookstore this month because most of the books in it are my favorite .
A. forth
B. four
C. fourth
8. The _______ biggest earthquakes in Nepal(尼泊尔) have killed more than 8,000 people.
A. two
B. second
C. twice
9. ______ month of the year us May.
A. Two
B. The second
C. Five
D. The fifth
10. ---- Jack , I want to go to ______ to see a dentist. Could you tell me the address ?
------ No problem.
A. Room 606
B. No. 2 Hospital
C. Fifth Avenue
11.It’s never too old to learn. Karl Marx began to learn English in his ________.
A. the fiftieth
B. fiftieth
C. fifty
D. fifties
12.On June 2nd this year, _______ people celebrated the Dragon Boat Festival near the Songhua River. To our joy, there was little rubbish left.
A. thousand of
B. thousand
C. two thousands
13. Christmas Day is on ______ of December .
A. twenty- five
B. the twenty- five
C. twenty- fifth
D. the twenty- fifth
14. Alice felt happy to receive some gifts on _______ birthday .
A twelve B. twelfth C. the twelfth D. next
15. Please turn to Page _______ and read the _______ story.
A. Ten ; two
B. Ten ; second
C. Tenth ; second
D. Tenth ; two
16.------ How long is the bridge ?
-------It’s _______.
A. 300-meter-long
B. 300-meters long
C. 300 meters long
D. 300 meter long
17. ------Where is Class ______ ?
-------It’s on the ______ floor.
A. Six ; third
B. Sixth ; third
C. Six ; three
D. Sixth ; three
18.Doris lives on the _____ floor . It’s too high. so she has to take a life every day.
A. four
B. fourth
C. forty
D. fortieth
19. Mother’s Day is on the _____ Sunday in May every year.
A. two
B. second
C. six
D. sixth
20.It is the boy’s _____birthday today . He is five years old now.
A. fifteen
B. fifth
C. five
21. They are the students of _____.
A. grade 7
B. Grade 7
C. 7th grade
D. Grade 7th
22. It is said that _____ young people may lose their abilities to hear after five years if they listen to MP4 Players which are too loud for more than five hours a week.
A. thousand of
B. six thousands
C. thousands of
23. It is reported that people throw _____ plastic bags along this street every day.
A. hundred
B. hundreds
C. hundred of
D. hundreds of
24. Did you know that the Earth is home to _____ animals ?
A. million
B. millions
C. million of
D. millions of
25. The teacher said that _____ of the boys would take part in the talent show.
A .three five B. three fives C. thirds fifths D. three fifths
26. After the Asian Games , _______ people came to Guangzhou for a visit during holidays.
A. thousand
B. thousands of
C. five thousands
D. five thousand of
27. Tom will sell ______ stamps to help the poor children in the west of China.
A. thousands of
B. two thousands of
C. two thousand
28. Father’s Day is on ______ Sunday of June.
A. three
B. the three
C. third
D. the third
29. This is Mr. White’s ______ visit to Beijing .He has been there twice before.
A. two
B. second
C. three
D. third
30.-----Excuse me, how many students are there in your art club ?
------ There are ______ .
A. twelve
B. twelfth
C. the twelfth
31.----How old is Kate ?
-----_______. We had a special party for her ______ birthday yesterday.
A. Twenty ; twentyth
B. Twenties ; twentieth
C. Twenty ; twentieth
D. Twenties ; twentyth
32. ------Did you go to Mount Wuyi this summer vacation ?
-----Yes. It was very crowded. ______ visitors came to visit it every day.
A. Hundreds of
B. Hundred of
C. Two hundreds of
D. Two Hundreds
33. This is Mr Green’s ______ visit to America . He has never been there before.
A. first
B. second
C. third
D. fifth
34.-----Ang Lee, a Chinese director , won the Best Director again in his _______ last year.
------- How great he was ! It was his ______ time to win an Oscar.
A. fifty ; twice
B. fiftieth ; second
C. fifties; second
D. fifties ; two
35.-----Has Dan finished reading the novel ?
------ Not yet. There _____ still ______ of it left.
A. is; three-fourths
B. are; three-fourth
C. is; third-fourths
D. are; three-fourths
35. _______ visitors come to Zhengzhou during May Day holidays every year.
A. Thousands of
B. Two thousands
C. Thousand of
D. Thousands
36.The number of the students in our school is about nine ______. _______ of them are boys.
A. hundred ; Two thirds
B. hundred ; Two third
C. hundreds ; Two thirds
D. hundred ; Two third
37.-----What are you going shopping for ?
----- I want to buy something for my son’s ____ birthday .
A. twelve
B. twelfth
C. the twelfth
D. the twelveth
38.----Which module is the most difficult in this book ?
------ I think _____ module.
A. ninth
B. the ninth
C. nineth
D. the nineth
39.-----We’ll be back for our school’s _____ anniversary(周年) ceremony.
----- I see. That means you’ll have a get-together with your classmates in ______ years.
A. twelve ; seven
B. twelfth ; seven
C. twelve ; seventh
D. twelfth ; seventh
40. In this exam, you’re asked to write a composition of about ______ .
A. 90-words
B. 90-word
C. 90 words
D. 90 word’s
41.Now, everybody, please turn to Page ______ and look at the _____ picture.
A. Fifth ; five
B. Five ; fifth
C. Fifth ; fifth
D. Five ; five
42.---- How far away is the small village from Moscow ?
----- It’s about ______ kilometers.
A. seven hundred and twenty two
B. seven hundred and twenty-two
C. seven hundreds and twenty-two
D. seven hundreds and twenty two
43.There are sixty students in our class. And _____ of us are boys.
A. one fourth
B. one third
C. three quarters
D. two thirds
44. Would you please pass me _____ book on the right ?
A. the third
B. the three
C. three
D. third
45. About _____of the engineers in our company seem to be in their _______ .
A. second-nines ; forties
B. two-ninths ; forties
C. second-ninths ; fortieth
D. two-ninths ; fortieth
46. ______ of the teachers in our school are women teachers.
A. Three quarter
B. Two thirds
C. Second threes
D. Three four
47.-----There is a wrong word in Line ______ .
------Where ?
In the _____ line .
A. Two ; Two
B. Two ; second
C. Second ; two
D. Second ; second
48.------Our school is going to hold The ______ Culture Festival .
----- Yes ! And we can take part in _______ activities.
A. Fifth ; fifth
B. Five ; fifth
C. Fifth ; five
D. Five ; five
49.-----Is this your ______ visit to my hometown ?
------ No. I’ve been here for many times.
A. one
B. second
C. the second
50. In our city ______ of the people ______ to Han nationality .
A. three fifths ; belong
B. three fifth ; belong
C. three fifths ; belongs
D. three fifth ; belongs
二、汉译英
1.十二_____________
2.十四_____________
3．四十_____________ 4.十五_____________
5.五十_____________
6.二十_____________
7.百_____________ 8.千_____________
9.百万_____________ 10.三百名学生_____________ 11.成百上千_____________ 12.成千上万_____________ 13.She was born on December _____________，1999.
她出生在1999年12月5日。
14.Two _____________ of the books are mine. 五分之二的书是我的。
15.He failed twice, but the tried _____________ third time.
16.Jim is the taller of the _____________ .
数词 I.定义与分类 数词是指表示数目多少或顺序先后的词。表示数目多少的数词叫基数词，如one, five, ten, thirty, sixty-five 等；表示顺序先后的数词叫序数词，如first, sixth, tenth, twenty-first 等。数词用法相当于名词和形容词，在句中可用作主语、宾语、表语、定语、同位语等。 II. 基数词 1. 英语中没有“万”这个读数单位，要表示汉语中的“万”，英语需借用thousand一词，如“一万”用“十个千”表示(ten thousand)，“十万”用“一百个千”表示(one hundred thousand)。 2. 用作基数词单位的hundred, thousand, million, billion 通常不带复数词尾-s，但若用于表示数百、数千、数百万这样的泛指，则用复数。如： About two thousand people died in the earthquake. 大约有两千人在地震中丧生。 Thousands of people go to the seaside every year. 每年成千上万的人到海滨去。 3. 表示整十的基数词用复数形式可以表示人的大约岁数或年代。如： He is in his early twenties. 他才二十出头(from 。 This took place in the 1930s. 这事发生在20世纪30年代。 III. 序数词 1. 许多序数词是由相应的基数词后加词尾-th构成的，如four / fourth，six / sixth，ten / tenth，sixteen / sixteenth，但是nine变为序数词是ninth，而不是nineth。 2. twentieth, thirtieth, fortieth 等表示整十的序数词，由相应的基数词将词尾y改为ie，再加-th 构成。 3. first, second, third 通常可缩写为1st, 2nd, 3rd。凡是以th结尾的序数词可缩写为“基数词+th”：4th, 5th, 9th, 11th, 60th, 128th等。 4. 非整十的多位数，将个位数变成序数词即可：twenty-first(第21)，thirty-sixth(第36)， ninety-ninth(第99)，three hundred and sixty-fifth(第365)等。 5. hundred, thousand, million 等序数词形式为hundredth, thousandth, millionth 等。 6. 序数词前通常要用定冠词，但表示考试或比赛等的名次时，通常可省略其前的定冠词。如：My room is on the second floor and his on the third. 我的房间在三楼，他的房间在四楼。 He was (the) third in the exam. 他考试得了第三名。 注：有时序数词前不用定冠词，而用不定冠词，表示次第在原有基础上的增加。如： We'll have to do it a second time. 我们得再做一次(from 。 序数词前用定冠词和不定冠词的区别在于：定冠词表特指，不定冠词表泛指，有类似another的意思，但比another 的意思更明确。 IV. 分数、倍数、小数和百分数 1. 分数。 (1)分数由基数词和序数词构成：分子用基数词，分母用序数词，当分子超过“1”时，分母用复数。如： two thirds=2/3 three fifths=3/5 注：1/2 通常读作 a [one] half，一般不读作a second；1/4 可读作 a [one] fourth，也可读作 a
数词的用法 责编：王晓丽 【真题再现】 1. About of the students like keeping diaries in English in our class. (2014安顺) A. two fifth B. two fifths C. second five D. two five 2. David Beckham has ______ children. Brooklyn Beckham is his ______ son.(2014宜宾) A. third, first, B. three, one C. three, first D. third, one 3. It's never too old to learn. Karl Marx began to learn English in his ______. (2014 广东) A. the fiftieth B. fiftieth C. fifty D. fifties 4. In his ________，Wilson returned to his hometown and began to teach. (2014漳州) A. thirty B. thirties C. thirtieth 5. ______ month of the year is May. (2014天津) A. Two B. The second C. Five D. The fifth 6. I live in Room 403, Sam lives in the room right above mine, on the _______ floor．(2015广东) A．third B．three C．fifth D．five 7. Basketball is so exciting that _______ people play it for fun. (2015天津) A. million B. two millions C. million of D. millions of 8. Boys and girls, please turn to Page _______ and look at the _______ picture. (2015呼和浩特) A．Fifth; five B．Five; five C．Fifth; fifth D．Five; fifth 9. Helen loves reading. She has read _______ books this month. (2015重庆) A. five B. fifth C. five of D. fifth of 10．It’s my ________ time to come to the bookstore this month because most of the books in it are my favorite. (2015哈尔滨) A．forth B．four C．fourth 11.The ________ biggest earthquakes in Nepal (尼泊尔) have killed more than 8,000 people.(2015成都) A．two B．second C．twice 12. We are going on holiday in the _______ week of July．(2015吉林) A. two B. twice C. second 13. _______ of the land in that district is covered with trees and grass. (2015兰州) A. Fifth two B. Two fifth C. Fifth second D. Two fifths 【答案与解析】 1. B。句意：我们班大约有五分之二的同学喜欢写英语日记。分数是由基数词和序数词 一起来表示的。基数词作分子，序数词作分母，除了分子是“1”以外，其它情况下序数词都要用复数形式。 2. C。句意：大卫·贝克汉姆有三个孩子，布鲁克林·贝克汉姆是他的第一个孩子。基数 词表示名词的数目的多少。序数词表示事物的顺序。根据句意，可知选C。 3. D。句意：活到老，学到老。Karl Marx在他五十多岁的时候开始学英语。“in one's ＋逢十数字的复数形式”表示“在某人,,岁时”。例如：in her thirties在她三十多岁时。故D项正确。 4. B。本句意为：在他三十多岁时，威尔逊回到家乡，开始教学。in one's thirties在某人 三十多岁时；故答案选B。 5. D。基数词表示数量的多少，序数词表示顺序，此处明显选择序数词，第五个月是 May.
数词的用法 （一）基数词写法和读法：345three hundred and forty-five ；基数词一般是单数形式，但下列情况，常用复数： a.与of短语连用，表示概数，不能与具体数目连用，如scores of people指许多人； b.在一些表示"一排"或"一组"的词组里； 女口：They arrived in twos and threes他们三三两两的到达了。 c. 表示"几十岁”为doze ns of ages d. 表示"年代”，用in the数词复数； e. 在乘法运算的一种表示法里，如：3 x 5 = 15 Three fives is （are） fiftee n. 基数词1-12 是独立单词,需逐个记忆。 基数词 1 3-1 9是个位数词的词干后加-teen 构成。其中thirteen, fifteen, eighteen 变化不规则。 基数词20-90 是在十位数词后面加-ty 构成。其中twenty, thirty, forty, fifty, eighty 变化不规则。 基数词21-99是在十位数词后面加上个位数词合成，中间加上连字符"—"。 例如：21 twenty—one 95 ninety—five 基数词三位以上的数词,在百位和十位之间,一般要用连词"and "。 例如：132 one hundred and thirty一two. 1340 one thousand three hundred and forty . 表示"一万，一亿"的词英语中没有，ten thousand十千，十千（1000X 10 = 一万30 万可用three hundred thousand 来表示
数词介词的用法 集团文件发布号：（9816-UATWW-MWUB-WUNN-INNUL-DQQTY-
代词用法详解 （人称代词） 人称代词主格：作主语，表示谁怎么样了、干什么了。 I am a teacher. You are student. 人称代词宾格作宾语，表示动作行为的对象，一般放在动词后面。 Give it to me. 巩固训练 用所给代词的正确形式填空。 1. These are ______ ( he ) brothers. 2. That is _______( she ) sister. 3. Lily is _______ ( Lucy ) sister. 4. Tom, this is _____ ( me ) cousin, Mary. 5. Now _____________(her parent) are in America. 6. Those __________ ( child ) are _____ ( I ) father’s students.
7. Do you know ______ ( it ) name?8. Mike and Tom __________ ( be ) friends. 9. Thanks for helping ________( I ). 10. ______(Ann安)mother is ______(we) teacher. 物主代词： 形容词性物主代词(my/your/his/her/its/our/their)+名词 而名词性物主代词(mine/yours/his/hers/its/ours/theirs则相单于形容词性物主代词+名词,故其后不必加名词。如： Is this your book No, it isn’t，it’s hers(her book) ，Jim’s ，Tom’s，Maria’s 1.补全对话 ----Whose bike is it Is it______(your/yours) ----No, it’s not______.(my/mine) _______is red. But this bike is blue . ----Is it Jane’s ----Sorry, I don’t know. Maybe it’s_______(her/hers). ----Jane,is this______bike (youryours)
数词（Numerals） 数词分为基数词和序数词两种 一、基数词 1）基数词的构成及读法 ①ù 1-12的构成为独立单词 ②ú 13-19的构成都以后缀-teen结尾，但thirteen，fifteen，eighteen为不规则变化 ③? 20-90的构成都以后缀-ty结尾，但twenty，thirty，forty，eighty为不规则变化 ④ü 21-99的构成是在十位数和个位数之间加连字符- e.g. 25 twenty-five ⑤Y 三位数101-999的构成要注意百位数和十位数（个位数）之间用and连接。 e.g.901 nine hundred and one ⑥T英语中没有“万”这个单位，1000以上而不到100万的数词都用thousand表示 ⑦?百万1，000，000 ：one(a) million ⑧à千万10，000，000 ：ten million ⑨á亿100，000，000 ：one(a) hundred million ⑩a十亿1,000,000,000 ：one(a) thousand million（等于美国英语a billion） 注：英语数字中，只有hundred后才加and 2）基数词的复数形式 ①ù Hundred，thousand，million和billion在表示具体数目时，不用复数形式，但在一些习惯表达中，相当于普通名词，可有复数形式 e.g. thousands of years ago ②ú数词复数形式还可以表示不十分精确的年龄、年代和其他表达方式 e.g. He died in his fifties. 3.基数词的作用 ①ù作主语 e.g. Two of the girls are from California.姑娘中有两个来自加州。 ②ú作表语 e.g. He is a little over five.他才五岁多一点。 ③?作宾语 e.g. Give me two.给我两个。 ④ü作定语 e.g. The river is about eighty miles long.这条河大约八十英尺长。 ⑤Y作同位语 e.g. You two take these seats.你们两个坐这里。 二、序数词 1）序数词的构成 ①序数词多数由“基数词-th”构成，序数词前一般加定冠词the ②ú少数序数词构成属特殊情况 e.g. One-first two-second three-third five-fifth eight-eighth nine-ninth twelve-twelfth ③?以y结尾的十位整数，先将y改为i，再加-eth e.g. thirty-thirtieth ④ü21以上的多位数，要将末位数改为序数词，前面其他位数仍用基数词 e.g. eighty-three—eighty-third nine hundred and sixty-two—nine hundred and sixty-second ⑤Y序数词的缩写形式由阿拉伯数字加序数词的后两个字母构成 e.g. first—1st second—2nd 2）序数词的用法 ①ù作主语 e.g. The third of the month was a holiday. ②ú作表语 e.g. Who was the third? ③?作定语 e.g. We live on the fifth floor. ④ü作宾语 e.g. I was among the first to learn of this. ⑤Y作同位语 e.g. Who is that man, the first in the front row? ⑥T作状语 e.g. When did you first meet him? 注：有时序数词并不指顺序，而是表示“再一，又一”的意思。此时序数词前要加不定冠词 e.g. I want to make a second try.
人教版英语英语数词专项练习含答案解析 一、初中英语数词 1．We are proud of our country. The year 2019 is her ____ birthday. A. seventy B. the seventy C. the seventieth D. seventieth 【答案】 D 【解析】【分析】句意：我们为我们的国家感到骄傲。2019年是她的70岁诞辰。表示几岁的生日，要用序数词，因此排除A、B；又因前面有物主代词her，因此不用加定冠词，故选D。 【点评】考查序数词的基本用法。 2．The number of the students in our school is about four __________. _______ of them are girls. A. thousand; Two thirds B. thousands; Two third C. thousands; Two thirds D. thousand; Two third 【答案】 A 【解析】【分析】句意：我们学校的学生人数大约是四人。三分之二是女孩。four基数词后用thousand的原形，分数表达形式是分子是基数词，分母是序数词，分子大于一，分母用复数形式，故三分之二是two thirds，故选A。 【点评】考查数词，注意分数的用法。 3．—____________of volunteers will be needed for the 2020 Olympic Games. —Let's go and____________ them. A.Thousands, join B.Thousand, be a member of C.Three thousand, take part in D.Thousands, be in 【答案】A 【解析】【分析】句意：——2020年奥运会将需要几千名志愿者。——让我们去加入他们吧。thousands of，几千，join sb，加入，和某人一起，故选A。 【点评】考查数词，注意join sb的用法。 4．In the Ukraine（乌克兰）, a ________ of the population are Russia speakers. A. five B. fiveth C. fifth D. fifty 【答案】 C 【解析】【分析】句意：在乌克兰，五分之一的人口是俄罗斯人。此处考查分数的表达方
英语数词的用法大全及答案解析 一、初中英语数词 1．Our country is 70 years old this year. We will celebrate her _____ birthday on Oct. 1. A. the seventieth B. seventieth C. the seventy D. seventy 【答案】 B 【解析】【分析】句意：今年我们的国家70岁了，我们将在10月1日庆祝她的70岁生日。表达某人几岁生日用one's+序数词+birthday，seventy，70，基数词；seventieth第七十，序数词，排除C、D，故选B。 【点评】考查序数词用法，注意平时识记one's+序数词+birthday。 2．When Huawei P20 came out, ______ people couldn't wait to buy one in our town. A. thousand B. thousands C. thousand of D. thousands of 【答案】 D 【解析】【分析】句意：当华为P20上市时，成千上万的人迫不及待地想在我们镇上买一台。thousand，千，其前有具体数词修饰时，用其单数形式，当其前没有具体数词修饰时，用其复数形式，且和of连用，thousands of，成千上万，这里没有具体数词修饰，故选D。 【点评】考查整数的表达。注意识记thousand的用法。 3．It's never too old to learn. Karl Marx began to learn English in his ________. A. fifties B. fiftieth C. fifty D. the fiftieth 【答案】 A 【解析】【分析】句意：活到老，学到老。卡尔马克思在他五十多岁时开始学习英语。 in one's +整十数字的复数形式表示在某人……岁时，固定搭配，fifty，基数词，复数是fifties，所以，在他五十多岁时是in his fifties，故答案为A。 【点评】考查数词的用法及固定搭配。在某人五十多岁时是in one's fifties。 4．Two ________ students ________ to the opening ceremony last Friday. A. hundreds; were invited B. hundred; were invited C. hundreds of; invited D. hundred of; invited 【答案】 B 【解析】【分析】句意：两百名学生被邀请参加了上周五的开幕式。hundred和数字连用用单数，两百是two hundred，学生和邀请之间是被动关系，用被动语态，根据可知是一般过去时，所以用一般过去时的被动语态，一般过去时的被动语态是was/were+及物动词的过去分词，students是复数，用 were invited，故答案为B。 【点评】考查数词和被动语态。注意hundred和数字连用时用单数。 5．September is the _____month of a year. A. seventh B. eighth C. ninth D. tenth
初中英语语法-数词及练习 一、内容概述 表示数目和顺序的词叫数词。数词可分为基数词和序数词两类 二、重点知识归纳及讲解 (一）基数词 基数词用来表示数目，或者说表示数量的词叫基数词。最基本的基数词如下表所示。 1 one11 eleven100 a hundred 2 two12 twelve20 twenty 1000 a thousand 3 three13 thirteen 30 thirty 1，000，000 a million 4 four14 fourteen 40 forty10，000，000 ten million 5 five15 fifteen50 fifty100，000，000 a hundred million 6 six16 sixteen60 sixty1，000，000，000 a billion 7 seven17 seventeen70 seventy 8 eight18 eighteen80 eighty
9 nine19 nineteen90 ninety 10 ten 说明： 1．13—19是由个位数加后缀-teen构成。注意其中13、15的拼写是thirteen和fifteen。 2．20—90由个位数加后缀-ty构成，注意其中20—50的拼写分别是twenty, thirty, forty 和fifty;80的拼写是eighty。 3．其它非整十的两位数21—99是由整十位数加连字符“-”，再加个位数构成。如： 81 eighty-one。4．101—999的基数词先写百位数，后加and再写十位数和个位数。如： 691 six hundred and ninety-one。5．1000以上的基数词先写千位数，后写百位数，再加and，最后写十位数和个位数。 如：5893 five thousand eight hundred and ninety-three。在基数词中只有表示“百”、“千”的单位词，没有单独表示“万”、“亿”的单位词，而是用thousand（千）和million （百万）来表达，其换算关系为：1万=10 thousand;1亿=100 million; 10亿=a thousand million=a billion。 7．多位数的读法： 1）1000以上的多位数，要使用计数间隔或逗号“，”。即从个位起，每隔三位加一个间隔或逗号。第一个间隔或逗号
数词的用法 【真题再现】 1. About of the students like keeping diaries in English in our class. A. two fifth B. two fifths C. second five D. two five 2. David Beckham has ______ children. Brooklyn Beckham is his ______ son.) A. third, first, B. three, one C. three, first D. third, one 3. It's never too old to learn. Karl Marx began to learn English in his ______. A. the fiftieth B. fiftieth C. fifty D. fifties 4. In his ________，Wilson returned to his hometown and began to teach. A. thirty B. thirties C. thirtieth 5. ______ month of the year is May. A. Two B. The second C. Five D. The fifth 6. I live in Room 403, Sam lives in the room right above mine, on the _______ floor． A．third B．three C．fifth D．five 7. Basketball is so exciting that _______ people play it for fun. A. million B. two millions C. million of D. millions of 8. Boys and girls, please turn to Page _______ and look at the _______ picture. A．Fifth; five B．Five; five C．Fifth; fifth D．Five; fifth 9. Helen loves reading. She has read _______ books this month. A. five B. fifth C. five of D. fifth of 10．It’s my ________ time to come to the bookstore this month because most of the books in it are my favorite. A．forth B．four C．fourth 11.The ________ biggest earthquakes in Nepal (尼泊尔) have killed more than 8,000 people. A．two B．second C．twice 12. We are going on holiday in the _______ week of July． A. two B. twice C. second 13. _______ of the land in that district is covered with trees and grass. A. Fifth two B. Two fifth C. Fifth second D. Two fifths 【答案与解析】 1. B。句意：我们班大约有五分之二的同学喜欢写英语日记。分数是由基数词和序数词一起来表示的。基数词作分子，序数词作分母，除了分子是“1”以外，其它情况下序数词都要用复数形式。 2. C。句意：大卫·贝克汉姆有三个孩子，布鲁克林·贝克汉姆是他的第一个孩子。基数词表示名词的数目的多少。序数词表示事物的顺序。根据句意，可知选C。 3. D。句意：活到老，学到老。Karl Marx在他五十多岁的时候开始学英语。“in one's ＋逢十数字的复数形式”表示“在某人……岁时”。例如：in her thirties在她三十多岁时。故D项正确。 4. B。本句意为：在他三十多岁时，威尔逊回到家乡，开始教学。in one's thirties在某人三十多岁时；故答案选B。 5. D。基数词表示数量的多少，序数词表示顺序，此处明显选择序数词，第五个月是May.
仁爱英语分类复习————数词用法 数词主要分为基数词和序数词两类。 一、数词的分类 1. 基数词 表示数目的词称为基数词。其形式如下： A．从1——10 one，two，three，four，five，six，seven，eight，nine，ten． B．从11——19 eleven，twelve，thirteen，fourteen，fifteen，sixteen，seventeen，eighteen，nineteen． 这里除eleven，twelve，thirteen，fifteen，eighteen为特殊形式外，fourteen，sixteen，seventeen，nineteen都是由其个位数形式后添加后缀-teen构成。 C．从21——99 整数几十中除twenty，thirty, forty，fifty，eighty为特殊形式外，sixty，seventy，ninety都是其个位数形式后添加后缀-ty构成。表示几十几时，在几十和个位基数词形式之间添加连字符“-” 21 twenty-one 76 seventy-six D．百位数 个数基数词形式加“hundred”，表示几百，在几十几与百位间加上and． 101 a hundred and one 320 three hundred and twenty 648 six hundred and forty-eight E．千位数以上 从数字的右端向左端数起，每三位数加一个逗号“，”。从右开始，第一个“，”前的数字后添加thousand，第二个“，”前面的数字后添加million，第三个“，”前的数字后添加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。 2,648 two thousand six hundred and forty-eight 16,250,064 sixteen million two hundred and fifty thousand sixty-four 5,237,166,234 five billion，two hundred and thirty-seven million，one hundred and sixty-six thousand，two hundred and thirty-four F．基数词在表示确切的数字时，不能使用百、千、百万、十亿的复数形式；但是，当基数词表示不确切数字，如成百、成千上万，三三两两时，基数词则以复数形式出现。 There are hundreds of people in the hall． 大厅里有数以百计的人。 Thousands and thousands of people come to visit the Museum of Qin Terra-Cotta Warriors and Horses every day． 每天有成千上万的人来参观秦兵马涌博物馆。 They went to the theatre in twos and threes． 他们三三两两地来到了剧院。 G．表示人的不确切岁数用几十的复数形式表示。
▲掌握小数，分数、百分数和时间、日期的表达法。 【复习要点】 （一）基数词num. 基数词用来表示数目，或者说表示数量的词叫基数词。最基本的基数词如下表所示。 1 one 11 eleven 100 a hundred 2 two 12 twelve 20 twenty 1000 a thousand 3 three 13 thirteen 30 thirty 1，000，000 a million 4 four 14 fourteen 40 forty 10，000，000 ten million 5 five 15 fifteen 50 fifty 100，000，000 a hundred million 6 six 16 sixteen 60 sixty 1，000，000，000 a billion 7 seven 17 seventeen 70 seventy 8 eight 18 eighteen 80 eighty 9 nine 19 nineteen 90 ninety 10 ten 说明： 1．13—19是由个位数加后缀-teen构成。注意其中13、15的拼写是thirteen 和fifteen。 2．20—90由个位数加后缀-ty构成，注意其中20—50的拼写分别是twenty, thirty, forty 和fifty;80的拼写是eighty。 3．其它非整十的两位数21—99是由整十位数加连字符“-”，再加个位数构成。如：81 eighty-one。 4．101—999的基数词先写百位数，后加and再写十位数和个位数。如：691 six hundred and ninety-one。5．1000以上的基数词先写千位数，后写百位数，再加and，最后写十位数和个位数。 如：5893 five thousand eight hundred and ninety-three。在基数词中只有表示“百”、“千”的单位词，没有单独表示“万”、“亿”的单位词，而是用thousand（千）和million（百万）来表达，其换算关系为：1万=10 thousand;1亿=100 million; 10亿=a thousand million=a billion。 Hundreds of Thousands of 6．多位数的读法： 1）1000以上的多位数，要使用计数间隔或逗号“，”。即从个位起，每隔三位加一个间隔或逗号。第一个间隔或逗号前是thousand（千），第二个间隔或逗号前是million（百万），第三个间隔或逗号前是a thousand million或a billion(十亿)。 2）每隔三位分段以后就都成了101—999。读的时候十位数（或个位数）的前面一般要加and。如： 888，000，000读作：eight hundred and eighty-eight million。 基数词的用法： 1. 基数词在句中的作用 基数词的作用相当于名词和形容词，在句中可作定语、主语、宾语（介宾）、表语、同位语等。 例如：Three and five is eight. 3+5=8 （作表语）How many oranges do you want?你要多少桔子？ I want eight. 我要八个。（作宾语）There are eight boats in the lake. 湖里有八条小船。（作定语） 2．Hundred, thousand, million, dozen, score这些词前面如有表示具体数字的词，它们不能加“s”,反之则须加“s”, 并要与of短语连用。例如：
一、数词的分类 1. 基数词 表示数目的词称为基数词.其形式如下： A．从1——10 one,two,three,four,five,six,seven,eight,nine,ten． B．从11——19 eleven,twelve, thirteen, fourteen, fifteen, sixteen, seventeen,eighteen, nineteen． 这里除eleven, twelve, thirteen, fifteen, eighteen为特殊形式外,fourteen,sixteen,seventeen,nineteen都是由其个位数形式后添加后缀-teen构成. C．从21——99 整数几十中除twenty,thirty, forty,fifty,eighty为特殊形式外,sixty,seventy,ninety都是其个位数形式后添加后缀-ty构成.表示几十几时,在几十和个位基数词形式之间添加连字符“-” 21 twenty-one 76 seventy-six D．百位数 个数基数词形式加“hundred”,表示几百,在几十几与百位间加上and． 101 a hundred and one 320 three hundred and twenty 648 six hundred and forty-eight E．千位数以上 从数字的右端向左端数起,每三位数加一个逗号“,”.从右开始,第一个“,”前的数字后添加thousand,第二个“,”前面的数字后添加million,第三个“,”前的数字后添加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. 2,648 two thousand six hundred and forty-eight 16,250,064 sixteen million two hundred and fifty thousand sixty-four 5,237,166,234 five billion,two hundred and thirty-seven million,one hundred and sixty-six thousand,two hundred and thirty-four F．基数词在表示确切的数字时,不能使用百、千、百万、十亿的复数形式；但是,当基数词表示不确切数字,如成百、成千上万,三三两两时,基数词则以复数形式出现. There are hundreds of people in the hall． 大厅里有数以百计的人. Thousands and thousands of people come to visit the Museum of Qin Terra-Cotta Warriors and Horses every day． 每天有成千上万的人来参观秦兵马涌博物馆. They went to the theatre in twos and threes． 他们三三两两地来到了剧院. G．表示人的不确切岁数或年代,用几十的复数形式表示. He became a professor in his thirties． 他三十多岁时成为了教授. She died of lung cancer in forties． 她四十来岁时死于肺癌. It was in the 1960s． 那是在二十世纪六十年代. H．基数词的句法功能
英语数词及年月日用法 概说 1.定义和特征 1)表示"多少"和"第几"的词，叫做数词(numeral)。 2)数词与不定代词相似，其用法或者相当于形容词，或者相当于名词。 2.种类 1)基数词表示"多少"的词叫做基数词(cardinal numeral)，如：one (一)，twenty(二十)，hundred(百)等。 2)序数词表示"第几"的词叫做序数词(ordinal numeral)，如：first (第 一)，twentieth (第二十)，hundredth(第一百)等。 基数词 100以下的基本的墓数词 1 one[wQn] 11 eleven[i5levn] 2 two[tu:] 12 twelve[twelv] 3 three[Wri:] 13 thirteen [5We:5ti:n] 4 four[fC:] 14 fourteen 5 five [faiv] 15 fifteen [5fif5ti:n] 6 six[siks] 16 sixteen 7 seven [5sevn] 17 seventeen 8 eight [eit] 18 eighteen[5ei5ti:n] 9 nine[nain] 19 nineteen 10 ten[ten] 20 twenty [5twenti] 21 twenty-one [5twenti5wQn] 60 sixty 30 thirty [5WE:ti] 70 seventy 40 forty [5fC:ti] 80 eighty 50 fifty[5fifti] 90 ninety 说明： 1)13-19皆以后缀-teen[5ti:n]结尾，它们都有两个重音。注意thirteen，fifteen，eighteen的发音和拼法。 2) 20-90第十位数的整数均以后缀-ty[ti]结尾。 3)十位数和个位数之间须用连字号"-"。如：twenty-one(二十一)，fifty-five(五十五)，ninety-nine(九十九)等。 100以上的基本的基数词 100 hundred [5hQndrid] 1,000 thousand [5WauzEnd] 1,000,000 million [5niljEn]百万 100,000,000 hundred million 一亿 1,000 million (=billion)十亿
数词的基本用法 (一)基数词的基本用法 1.定语 Fifty thousand London dockers are out on strike. 2.主语 数词作主语，谓语动词用单数。 如：Two months is quite a long time. Five is an odd number. 3.宾语或介词宾语 How many do you want? -----Eight, please. The city has a population of four million. 4.表语 We are altogether fourteen. Five plus seven is twelve. 5.同位语 What work are you to assign us three? Is there room for us two? 6.基数词＋单数名词＋形容词构成合成形容词。如：一个五岁的男孩 a five-year-old boy；一座800米长的桥an 800-metre-long bridge；女子400米接力girls'400-metre relay race。
7.句型：主语＋is ＋about(大约)／over ＝more than(超过)／nearly(接近)＋具体数词＋metre(s)／kilometre(s)／kilo(s)long ／high ／tall ／deep ／away等。如：长江长6300公里。 The Changjiang River is 6，300 kilometres long. 8.表示“。。。。。。十”的数词的复数形式可以用来表示人的岁数或年代： He is in his early thirties. He died still in his forties. This took place in the 1930s. (二)序数词的基本用法 1.序数词主要用作定语，前面一般要加定冠词(或物主代词)： Tom is their second son. They celebrated the 10th anniversary of the founding of the republic. I will never give up, not even on the 1,000th or 10,000th try. 2.有时前面可以加一个不定冠词来表示“再一”，“又一”这样的意思： We’ll have to do it a second time. Shall I ask him a third time? When I sat down, a fourth man rose to speak. ,second 等有时可用来表示“第一个人(批)”“第二个人”等： She was among the first to come and settle in Dujiashan. You will be the second to speak.