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
。[one] quarter
十分ten 分子在前，分母在后，分子分母都用基数词。如one in (2) 分子与分母之间加in,
八分之五。之一，five in eightone out of ten分母在后，分子分母都用基数词。如分子与分母之间加(3) out of , 分子在前，十分之一，five out of eight八分之五。
倍数。英语中表示倍数时通常借助half, double, twice, three times等之类的词。如：2.
They're twice the size of chickens. 它们比鸡大一倍。他们的房子大约有我们房子三倍大。Their house is about three times as big as ours.
倍数的几种表达法这座桥This bridge is three times as long as that one.)+ as。如：(+as +形容词/副词原级(1) 倍数是那座桥的三倍长。这This bridge is three times longer than that one.+than。如：(2) 倍数+形容词或副词的比较级座桥是那座桥的三倍长。表示比较对象的名词。如：倍数+ the size/length/weight…+of+(3)
这座桥是那座桥的三倍长。This bridge is three times the length of that one.
引导的从句。如：倍数+what(4)
这所大学是它五年前的两倍。The college is twice what it was 5 years ago.
per cent。如：组成，百分号(%)读作3. 百分数。百分数由基数词和百分号(%)60
percent=60%thirty percent=30%,
，作主语时，谓。若表示几分之几或百分之几十的人或物时，用加of“基数词＋percent”用of 后的名词数一致。如：语动词的数与Forty percent of the students wear glasses.百分之四十的学生戴眼镜。三分之二的钱都花在食物上。Two-thirds of the money was spent on food.. 注意：percent 一律用单数形式4. 小数。
小数点前的数按总数念，同其它基数词读法一样，小数点用point，小数点后面的数按基数词一个一个单独念。如读作nine point six five。读作two hundred and eighteen point three nine。
V. 日期
1949年1949读作nineteen forty-nine
6月23日June 23rd 读作June (the) twenty-third或the twenty-third of June
2006年10月October 2006 读作October, two thousand and six
1600年5月2日May 2nd, 2005 读作the second of May, sixteen hundred
VI. 钟点
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。
08:00 eight o'clock或eight
09:15 nine fifteen或a quarter past/after nine
02:30 two thirty或half past/after two
05:45 five forty-five或a quarter to six
14:15 fourteen fifteen= p. m.
23:05 twenty-three oh five
24:00 twenty-four hundred hours=midnight
VII. 编号
1. 单纯的编号，可在基数词前加number，简写为No.。如第二。
2. 序号与事物名词连用时分三种情况(from ：
(1)小序号可用“the +序数词+名词”或“名词+基数词”。如第一次课可以说the First Lesson或Lesson
One。
(2)大序号通常只用“名词+数词”。如808号房间Room 808；168路公共汽车Bus ；南京路1490号1490 Nanjing Road；电话号码(用基数词逐个念，0念字母O)。
(3 )用“a/the + number+基数词+名词”。如a bus一辆三路公共汽车，the bus那辆三路公共汽车。
VIII. 约数
1. 用tens/dozens/scores/hundreds/thousands/millions of表示“几十、几百、上千、成千上万”等。如：
The boy bought dozens of pencils.那个男孩买了几十支铅笔。
Thousands of people died in the earthquake.数以千计的人死于地震。
注意：
(1)dozen, score, hundred, thousand, million等表示确切数量时，不用复数。如five dozen eggs五打鸡蛋, three hundred people五百个人。但score用法略有不同，与数词连用时，也加of。如two score of eggs (40个蛋)。
(2)有时单数形式的dozen, score, hundred, million等前面有数词，后面也有of，此时的of表示的是部分与整体的关系，其后一定是them, us之类的人称代词或者有the, these, your之类的限定词。如I want to buy three dozen of the eggs. (我想买其中的三打蛋) (from 用less than,
under, below, almost, nearly, up to等来表示小于或接近某数目。如nearly two hours将近两个小时。
3. 用more than, beyond, or more, over, above等来表示超过或多于某个数目。如more than
100 years一百多年。
4. 用or, or so, about, around, some, more or less等表示在某一数目左右。如about 50 pens大约五十支钢笔，a month or so大约一个月。
5. 用to, from…to…, between…and表示介于两数词。如：
His salary rose from 100 dollars a month to 120 dollars a month.他的工资从每月100美元升到了每月120美元。
IX. 年代
表示在某个世纪的几十年代，用“in the +逢十的基数词的复数”。基数词的复数若用阿拉伯数字表示，可直接加s，也可加's。如“在20世纪80年代”是in the 1980's或in the 1980s，读作in the nineteen eighties。
注意：不要漏掉the。
X.年龄
1. 表示某人几岁的确切年龄，用“基数词＋years old”或“基数词＋of age”或者“at the age of ＋基数词”，也可直接用基数词。如：
He began to study English at (the age of) seventy. 他70岁开始学英语。
岁了。70她She's seventy years old.= She's seventy years of age.
tens, twenties, 如“in one's+逢十的基数词的复数(2. 表示某人几十多岁这样的约略年龄，用来表达。如：等)”thirties30多岁时去了美国。He went to America in his thirties.他
算式XI.
Two plus eight is/equals ten.
2+8=10
Two and eight are/equal ten.
If you add two and eight, you will get ten.
Eight minus two is/equals six.
8-2=6
Two from eight is/equals six.
If you subtract two from eight, you will get six
2x8=16 Two multiplied by eight is/equals sixteen.
Two times eight is/equals sixteen.
If you multiply two by eight, you will get sixteen.
8÷2=4 Eight divided by two is/equals four.
Eight over two is/equals four.
If you divide eight by two, you will get four.
数词专项练习
( ) 1. The People's Liberation Army was founded _______.
A. on August 1, 1927
B. in 1927, 1 August
C. on August 1st, 1927
D. in August 1, 1927
( ) 2. A _______ boy can sing the English song very well.
A. ten-year-old
B. ten years old
C. ten-years-old
D. tenth years old
( ) 3. An hour later, _____ minister was sent to see the “magic cloth”woven by those two men.
A. two
B. the second
C. the two
D. second
( ) 4. Do you think there is any room for us ________
A. two
B. the two
C. second
D. the second
( ) 5. Which number is wrong _______.
A. Ninety
B. Ninteen
C. Ninth
D. Nineteenth
( ) 6. The number 4,123 is read _______.
A. four thousand one hundred and twenty-three thousand and one hundred twenty-three
C. four thousand and a hundred and twenty-three
D. four thousands a hundred and twenty-three
) 7. The old professor still works hard though he is _________.
(
A. in his sixty
B. in his sixties
C. in sixties
D. in the sixty
( ) 8. This classroom is ________ ours.
A. three times big as
B. as three times big as
C. three times as big as
D. as big three times as
( ) 9. The basketball team of our school ranks ________ in the match.
A. three
B. third
C. the three
D. the third
( ) 10. Which is the car that he drives It's ________.
A. fifty two
B. the fifty-two cars
C. the car fifty four
D. the fifty-fourth car
( ) 11. Which of the following is wrong ________.
A. He is a fifteen-year-old boy.
B. He is at the age of 15.
C. He is a boy of 15.
D. He is fifteen year old.
( ) 12. Our school is not very big. There are only ________ students.
A. nine hundreds of
B. nine hundred
C. nine hundreds
D. nine hundred of
( ) 13. ----How many new words are there in ________ lesson ----There are only _________.
A. five; fifth
B. fifth; five
C. the fifth; the five
D. the fifth; five
( ) 14. ________, Coca-Cola began to enter China's market.
A. In 1970's
B. In 1970s
C. In the 1970s'
D. In the 1970s
( ) 15. There was no bus in that small town. We had a ________.
A. ten miles walk
B. ten-mile walk
C. ten mile's walk
D. tenth mile walk
( ) 16. Which room do you live in ________.
A. The 201 Room
B. Room 201
C. Room 201st
D. The 201's Room
( ) 17. Three hundred thousand one hundred and seventy means ________.
A. 3,170
B. 3,117
C. 300,170
D. 30,170
( ) 18. On May ________, ________ people traveled round the country.
A. the first, millions
B. the first, millions of
C. first, the millionth
D. first, millions
( ) 19. ________ of them are dining at school.
A. Twelve
B. Twelfth
C. The twelve
D. the 12th
( ) 20. 7:17 is read ________.
A. seven and seventeen
B. seven seven
C. seven one seven
D. seven seventeen
( ) 21. Four ________ two is two.
A. plus
B. minus
C. times
D. divided by
) 22. Three ________ five is eight.
(
A. plus
B. minus
C. times
D. divided by
( ) 23. Three ________ seven is twenty-one.
A. plus
B. minus
C. times
D. divided by
( ) 24. Forty-two ________ seven is six.
A. plus
B. minus
C. times
D. divided by
( ) 25. There are ________ days in a year.
A. three hundred sixty and five
B. three hundred and sixty-five
C. three hundreds and sixty-five
D. three hundred sixty-five
( )26. There are ________ students in that school.
A. two thousand eight-six
B. two thousand eighty-six
C. two thousand and eighty-six
D. two thousands and eighty-six
( ) 27. It took me ________ to get there.
A. two hours and a half
B. two hours and half
C. two hour and a half
D. two hour and half ( ) 28. ________ is a very tall boy.
A. The twelve
B. The twelveth
C. The twelfeth
D. The twelfth
( ) 29. “What year is it”“It's ________.”
A. nineteen hundred and ninety-seven
B. nineteen and ninety-seven
C. nineteen ninety and seven
D. nineteen ninety-seven
( ) 30. “What's the date today”“It's _________.”
A. Tuesday
B. June Fourth
C. June the four
D. June the fourth
( ) 31. The train from Shanghai will arrive ________.
A. in quarter past six
B. in a quarter past six
C. at quarter past six
D. at a quarter past six ( ) 32. My friend was born on _________.
A. three of July, 1979
B. the third of July,1979
C. 1979, July the third
D. 1979, the third of July ( ) 33. ________ is less than ________.
A. One-third; two-thirds
B. One-third; two-third
C. First-three; first-threes
D. One-t hird; one-three
( ) 34. Which lesson did you learn yesterday _ _______.
A. Lesson Seven
B. Lesson seventh
C. The 7 Lesson
D. 7 Lesson
( ) 35. There will be a comedy on TV at ________ this evenin g.
D. thirty to seven
C. seven the thirty B. half past seven A. seven past thirty
( ) 36. It took me ________ to find out the key to the drawer.
A. one and half hours
B. one and a half hours
C. one and a half hour
D. one and half hour
( ) 37. I'm so tired after ________ walk.
A. three hours
B. three hours'
C. three hour's
D. three hour
( ) 38. There are ________ stars in the sky.
A. million of
B. millions of
C. the million
D. a million of
( ) 39. The street is ________ wide.
A. two meters
B. two meter
C. the two meter
D. a two meter
( )40. Most of the stars are much bigger than the sun. But they are ____ light years away from us.
A. thousand
B. thousands
C. thousand of
D. thousands of
( )41. _______ of the surface(表面) of the earth is covered with water.
A. First third
B. Two thirds
C. One three
D. Two three
( )42. There are _______ people in my family. We live on the _______ floor in a tall building.
A. five, six
B. fifth, sixth
C. fifth, six
D. five, sixth
( )43. The flood happened _______.
A. in the summer of 1998
B. in the summer of 1998s
C. in 1998 of the summer
D. in 1998s of the summer
( )44. --- How soon will you finish your work --- In about _______.
A. one and a half month
B. one month and a half
C. one and half a month
D. a month and half ( )45. We will have a _______ holiday. What about going to Suzhou
A. five days
B. five day
C. five-day
D. five-days
( )46. We are sure the _______ century will bring us more hopes.
A. twentieth-first
B. twentieth-one
C. twenty-one
D. twenty-first
( )47. At the age of _______, he had his own lab.
A. thirty
B. thirtieth
C. the thirtieth
D. the thirty
( )48. --- Would you like some fruit, madam --- Oh, yes. _______, please.
A. 5 kilo bananas
B. 5 kilos of bananas
C. 5 kilo of bananas
D. 5 kilos of banana
( )49. This building is for a _______.
e peoples family D. three people's familyA. family o
f three B. three people C. thre
)50. Look at the table. Tom wants to buy a hamburger, a large coke and an ice-cream. How ( much will he pay
Orange juice $ Hot dog $ Coffee $ Hamburger $
Ice-cream $ Water $ Popcorn $ Large coke $
B. Five dollars and thirty-five cents. A. Three dollars and sixty cents.
D. Two dollars. C. Five dollars and sixty cents.
音标语法词汇阅读综合训练I. Fill in the blanks according to the phonetic transcriptions.
II. Complete the following passages with the words or phrases in the box. Each can only be used
once.
(A) E. dangerous D. at least C. cause A. chairs B. amazing
___6___. the most it one of carelessness the safest place of all, but makes should Home be
kitchen misuse as ladders and ___people use tables and ７___ Accidents can happen when appliances. Many home accidents involve falls. Objects that are left on floors can make others fall over. The kitchen is another place where many falls take place. Cleaning up water off the floor
can prevent many accidents.Burns happen mostly at home, and many of them happen in the kitchen.
A hot oven is an obvious
danger that can ___8___ painful burns. Cooking with heat should be done by adults, or ___9___
with an adult around.
(B)
A. without
B. signs
C. instead of
D. as well as
E. regularly
House fires are also a serious problem. They often start ___10___ being noticed, so every house should have one smoke detector（探测器）on each floor. The detectors can detect, or sense, any sign of smoke and warn you with an alarm.
Every family member should know what to do when there is a fire. Once agreed upon, these
safety rules should be reviewed and practised together ___11___. This practice will create a
much safer home.
Accidents often happen in public places ___12___ at home. Accidents take place in these places
for two main reasons. First, most visitors are unfamiliar with these places. Second, public places
are often crowded. While you are in these places, pay attention to ___13___ warning about any dangers.
III. Complete the sentences with the given words in their proper forms.
14. As we all know, Edison was one of the greatest _________ in the world. (science)
15. We must keep the balance of _________. (natural)．
16. Of all the subjects, I like _________ best. (chemical)
17. Staying in an air-conditioned room in summer makes me feel _________. (comfort)
18. Teachers should be _________ to all the students. (patiently)
19. It is _________ to talk loudly in the reading room. (polite)
20. The detective story has a _________ ending. I like it very much. (drama)
21. All the staff in this big company had _________ exam last week. (medicine)
IV. Complete the following sentences as required.
22. Cathy is keen on playing chess. （保持句意基本不变）
Cathy is _________ _________ playing chess.
23. My mother seldom goes to work by car.（改为反意疑问句）
My mother seldom goes to work by car, _________ _________
24. I go to the cinema once a month. （对划线部分提问）
_________ _________ do you go to the cinema
25. It is very important to pay attention to road safety. （改为感叹句）
_________ _________ it is to pay attention to road safety!
26. The government will widen this old street next year. （改为被动语态）
This old street will _________ _________ by the government next year.
27. When will Mary go travelling The professor wanted to know. （改为复合句）
初中英语数词的用法 基数词: 表示人或事物数量多少的词. 序数词: 表示人或事物的顺序的词. 一. 基数词. 1.基数词的读法. 1)1---12 : one two three four five six seven eight nine ten eleven twelve 2)13---19: 词尾加-teen :thirteen fourteen fifteen sixteen seventeen eighteen nineteen 3)20,30,40,50,60,70,80,90 : 逢十词尾加-ty :twenty thirty forty fifty sixty seventy eighty ninety 4)21----99: 在十位与个位之间加连字符构成. 21--- twenty-one 99---ninety-nine 5)101---999 :先说几百, 再加and ,再加末尾两位数或个位数. 101---one hundred and one 238----two hundred and thirty-eight 6)1000以上的数:先将数字从右往左数,每三位数用一个逗号隔开, 从右往左第一个逗号表示“千”读thousand 第二个逗号表示“百万”读million 第三个逗号表示“十亿”读billion 18,657,421---eighteen million ,six hundred and fifty-seven thousand ,four hundred and twenty-one. 二. 序数词 基数词变序数词 口诀: 基变序,有规律,词尾要加th .一二三,特殊记,词尾分别tdd(first second third ) 八去t ,九去e,ve要用f替.ty变作tie,再加th莫忘记. 若遇几十几,只变个位就可以. 三. 数词的应用. 1.表编号. 结构:名词(首字母要大写) + 基数词 = the +序数词 +名词 lesson one = the first lesson 注：有些编号，一般仅用第一种表达法。 room 101 101号房间 2.序数词前一般加定冠词the 但序数词前与不定冠词a /an 连用时,表示“又一,再一” you’ve done it three times .why not try ____fourth time ? a.a b.an c.the d./ 3.数词前加every ,表示每……/每隔…… . every ten days =every ninth day 每十天(每隔九天) 注:every +基数词 +复数名词 = every + (序数词-1) +单数名词 4.基数词的复数形式表示年代和年龄 1)表示年代: in the + 年份的复数在几世纪几十年代. 在十九世纪七十年代. _________________________. 2)表年龄: in one’s + 整十的复数表示在某人几十岁时 在他四十岁时: ___________________. 5.hundred / thousand /million /billion 1).若hundred / thousand /million /billion 前有基数词时,其后不加s,也不加of .若没有时 ,既加s 也要带of . every year _______ visitors come to china . there are two _______ students in our school . a.thousand b.thousands c.thousands of d.thousand of
人教版英语英语数词复习附答案解析 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．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． should not be allowed to drive. A. Sixteen-year-old B. Sixteen years old C. Sixteen-year-olds D. Sixteen year olds 【答案】 C 【解析】【分析】句意：16岁的青少年不允许开车。sixteen-year-olds：十六岁的孩子（青少年），是名词性短语；sixteen-year-old：通常只做形容词用，十六岁的；sixteen years old：十六岁。结合句意，故答案为C。 【点评】考查数词和名词的用法。注意识记名词sixteen-year-olds。 4．Lin Tao, an ______ boy, was very brave and helped his classmates run out of the classroom when the earthquake happened. A. 8-year-old B. 8 year old C. 8-years-old D. 8 year olds 【答案】 A 【解析】【分析】句意：林涛，八岁的男孩，很勇敢并且在地震发生时帮助他的同学从教室里跑出来。数量词在句中作前置定语，注意量词用单数，并且带连字符号，故选A。【点评】考查数量词在句中作定语的用法。 5．Most of the doctors in this hospital were born ________, and they are ________now. A. in the 1970; in their fifties B. in 1970s; in the fiftieth C. in the 1970s; in fiftieth D. in the 1970s; in their fifties
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
英语中几个特殊数词的用法小结 石广银 湖南怀化广播电视大学湖南怀化 418000 【摘要】英语的数词除基数词外，还有dozen, score, hundred, thousand, million, billion, trillion七个。它们除了表达基本的数目和顺序外，还有一些特殊用法，涉及到用单数还是用复数，与不与介词连用，与不与定冠词the连用等，本文对它们的用法作七点分析总结。 【关键词】特殊数词、用法、总结 英语的数词由基数词one至 nineteen, 以及twenty至ninety组成，共二十七个。除了这二十七个基数词外，还有七个表示整数的特殊数词，它们分别是dozen(十二),score（二十）, hundred（百）, thousand（千）, million（百万）, billion(【美国、法国】十亿 ,【英国、德国】万亿), trillion（【英】百万兆,一百万的三次幂，【美】万亿,兆,一千的四次幂）。称这七个数词为特殊数词，是因为它们除了表达基本的数目和顺序外，还有一些特殊用法，涉及到用单数还是用复数，与不与介词连用，与不与定冠词the连用等，本文对它们的用法作七点分析总结。这七个词中，billion和trillion用法与其它五个词相同，但很少用，故本文不为它们举例。 1.当它们表示具体、确切的数量、修饰名词时，不用复数（但名词要用复数，且可以承前文省略），也不和定冠词the及介词of连用，基本句型为：数词＋特殊数词单数（＋描绘性形容词）＋名词。如： He had come half a dozen times to call upon his sister.他来看望他姐姐已有六七次了。 Four score and seven years ago our fathers brought forth on this continent a new nation conceived in Liberty and dedicated to the proposition that all men are created equal.（亚伯拉罕·林肯，葛底斯堡演讲）八十七年前，我们的先辈在这个大陆上创立了一个新的国家，它孕育于自由之中，奉行一切人生来平等的原则。
英语数词的用法 Revised as of 23 November 2020
英语数词用法详解 数词部分 ▲掌握分数、时间、日期的表达法。 【复习要点】 （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 twenty1000 a?thousand 3 three13 thirteen30 thirty1，000，000 a?million 4 four14 fourteen40 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。 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
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
（英语）初中英语数词技巧和方法完整版及练习题 一、初中英语数词 1．It's 10:15. We can say a _______ past ten. A. quarter B. half C. pound D. kilo 【答案】 A 【解析】【分析】句意：现在是10:15。我们可以说十点过一刻。 A. 一刻钟；B.一半；C.英镑；D.公斤。根据英语的表达习惯可知，十点十五分也可以说成是十点一刻，故选A。【点评】考查名词辨析。注意理解单词意思，理解句意。 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．The TV was invented around . A. the twenty century B. the twentieth century C. twentieth century D. twenty century 【答案】 B 【解析】【分析】句意电视大约是在二十世纪发明的。二十世纪也就是第二十个世纪，因此使用序数词，序数词前必须使用定冠词the，故答案是B。 【点评】考查数词，注意序数词再具体语境中的运用。 4．______ of the students in our school are boys. A. Two three B. Second three C. Two thirds D. Two third 【答案】 C 【解析】【分析】句意：我们学校的学生中有三分之二是男生。分数词是分子是基数词，分母是序数词，分子大于一，分母加s，因此二分之一是two thirds，故选C。 【点评】考查分数，注意分子是基数词，分母是序数词，分子大于一，分母加s的用法。 5．My family lives on ________________ floor of the building. A. twelve B. the twelfth C. twelfth D. the twelve 【答案】 B 【解析】【分析】句意：我家住在这栋楼的第20层。表示第几层，用the+序数词+floor，固定搭配，twelve，12，基数词；twelfth，第12，序数词，故选B。 【点评】考查序数词用法，注意平时识记the+序数词+floor。
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.
英语 ------ 数词 ▲掌握分数、时间、日期的表达法。 【复习要点 （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 twenty1000 a thousand 3 three13 thirteen30 thirty1， 000， 000 a million 4 four14 fourteen40 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。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
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.
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
英语数词技巧和方法完整版及练习题含解析 一、初中英语数词 1． of the land in that district covered with trees and grass. A. Two fifths; is B. Two fifth; are C. Two fifth; is D. Two fifths; are 【答案】 A 【解析】【分析】句意：在那片区域五分之二的土地被树和草覆盖着。分数由基数词和序数词构成，分子用基数词，分母用序数词，分子大于1时，分母用复数，所以五分之二的表达为two fifths。且land 作为集体名词是不可数名词，谓语应用单数形式，所以用is，故选A。 【点评】考查分数的表达和be动词用法。注意分数的表达，分数由基数词和序数词构成，分子用基数词，分母用序数词，分子大于1时，分母用复数。 2．—How old is your daughter? — ______. We had a special party for her ______ birthday yesterday. A. Nine; nine B. Nine; ninth C. Ninth; ninth D. Ninth; nine 【答案】 B 【解析】【分析】句意：——你的女儿多大了？——九岁，昨天我们给她过了一个特殊的九岁的生日聚会。第一空说明年龄，应使用基数词，第二空说明的是第几个生日，使用序数词，故答案是B。 【点评】考查数词，注意基数词和序数词的用法。 3．My family lives on ________________ floor of the building. A. twelve B. the twelfth C. twelfth D. the twelve 【答案】 B 【解析】【分析】句意：我家住在这栋楼的第20层。表示第几层，用the+序数词+floor，固定搭配，twelve，12，基数词；twelfth，第12，序数词，故选B。 【点评】考查序数词用法，注意平时识记the+序数词+floor。 4．There are ______________ months in a year. December is the ______________ month of a year. A. twelve; twelve B. twelfth; twelfth C. twelve; twelfth D. twelfth; twelve 【答案】 C 【解析】【分析】句意：一年有十二个月，十二月是一年中的第十二个月。根据基数词表示数量以及months是名词复数可知，第一个空应填基数词twelve；根据序数词表示顺序以及month是名词单数可知，第二个空应用序数词twelfth。故选C。 【点评】考查基数词及序数词的基本含义及用法。注意twelfth的书写。 5．— Is Dongjin High-speed Railway Station the largest in Hubei Province? — Yes, of course. It's just a little smaller than the largest one in Wuhan.
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。
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