数词 九年级英语讲解

数词 九年级英语讲解

2023年10月25日发(作者：圆明园的毁灭课文导读)

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数词

1、分类：数词有基数词和序数词两种。英语的数词可以作句子的主语、宾语、表语和定语。

2、基数词：表示数目的词叫基数词。

1、 英语中常用的基数词有：

1 one

2 two 20 twenty

3 three 13 thirteen 30 thirty 23

twenty-three

4 four 14 fourteen 40 forty

5 five 15 fifteen 50 fifty 35

thirty-five

6 six 16 sixteen 60 sixty

7 seven 17 seventeen 70 seventy

8 eight 18 eighteen 80 eighty

9 nine 19 nineteen 90 ninety

10 ten 100 one(a) hundred

11 eleve 101

one hundred

12 n

and one

twelv

e

1000→one(a) thousand,10000→ ten thousand,100000→one hundred

thousand ,1000000→one million,10000000→ten million, 100000000→one

hundred million,

108→one hundred and eight, 146→one hundred and forty-six, 500→five

hundred , 1001→one thousand and one, 1813→one thousand eight hundred

and thirteen.

2、[注]：(1)百位与十位之间要加and；十万位和万位,亿位和千万位之间通常也要加and。

(2)英语用千、百万等单位计数,大数字从右向左看, 每隔三位划一逗号,倒数第一个逗号之前要用thousand,倒数第二个逗号之前要用million,倒数第三的逗号之前要用billion表示。

(3) hundred、 thousand、 million、billion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。如：five

hundred(五百), hundreds of(成百上千的), ten thousand(一万),

thousands of(成千上万的), millions of(成百万的)

3、序数词：表示顺序的数词叫序数词。

1、 英语的序数词基本变法：

(1) 一般在基数词后加th,(2)-ve结尾的改为-fth,(3)-ty结尾的改为-tieth,(4)熟记特殊词。

2、序数词如下： twenty-first

twentieth

twenty-second

thirtieth

twenty-third

fortieth

fiftieth

thirty-fifth

sixtieth

seventieth

eightieth

ninetieth

one

eleventh hundredth

one hundred

twelfth and first

1000th→one thousandth, 1000000th →one millionth., 第703→the seven

hundred and third,

第5480→the five thousand four hundred and eightieth.

3、注：(1)两位以上的序数词仅个位数部分用序数词,其余部分仍用基数词。如：thirty-sixth,

(2) 使用序数词时一般加定冠词the. 如：I’m in the third grade.

(3) 序数词作“几分之几”讲时,有复数形式。如：1/5→one fifth ; 2/3→ two thirds ; 4/7→ four sevenths ; 1/2→ a half ; 1/4→a quarter ;

3/4→ three quarters ; 50%→ fifty hundredths ( fifty per cent).

4、数词的用法：

1.分数

分数由基数词和序数词合成。分子用基数词，分母用序数词。分子是1.时，分母(序数词)用单数形式；分子大于1时，分母用复数形式，序数词加-s。读带分数时，先读整数部分，再读分数部分。例如：

1/2→one half 或 a half 1/4→one fourth 或 one (a) quarter

3/4→three quarters或 three fourths4/5→four fifths

2.小数

整数与小数之间用小数点隔开。读小数时,每位数字(特别是小数点后面的)要单独读出。小数点读作point(点)，零读作zero(或naught)。如果整数是零,往往不读出。例如：

0.1→zero(naught)point one,或point one 

0.03→zero(naught)point naught three或zero point zero three

3.百分数

百分数用下面形式表示：

5%→ cent(缩写：)读作：five percent

23%→ cent(缩写：)读作：twenty-three percent

4.时刻表达法

表示时刻有两种说法：

1st

2nd

3rd

4th

5th

6th

7th

8th

9th

10th

11th

12th

first

second

third

fourth

fifth

sixth

seventh

eighth

ninth

tenth

13th

14th

15th

16th

17th

18th

19th

20th

thirteenth

30th

fourteenth

40th

fifteenth

50th

sixteenth

60th

thseventeenth

70

eighteenth

80th

nineteenth

90th

100th

21st

22nd

23rd

35th

101st

1)先说分钟,后说钟点。几点过几分，分钟不超过三十分钟时用past。例如： It’s five past seven now. 现在是七点(过)五分。

几点差几分或差几分几点，差的分钟数不超过二十九分钟时,用to。例如：

It’s twenty-nine to five. 五点差二十九分。 It’s a quarter to six. 差一刻六点。

2)先说钟点,后说分钟。在日常生活中,为了简便,常用这种说法。例如：

It’s six thirty.六点三十分。

5.年、月、日表达法

1)年份用基数词,日期用序数词。例如：

1988年5月1日可以写作 May 1(st),1988，读作May the

first,nineteen eighty-eight；也可以写作 1(st)May,1988,读作the first of

May,nineteen eighty-eight

2)英语年份的读法：一般先读前两位数,再读后两位数。例如：

1983→nineteen eighty-three1700→seventeen hundred

1870→eighteen seventy1601→sixteen a one或sixteen hundred and

one

965→nine sixty-five 或nine six five

6.月份。一年12个月的英语写法如下。

一月→January 二月→February三月→March四月→April

五月→May六月→June七月→July八月→August

九月→September十月→October十一月→November十二月→December

的用法

1)“half a(an)+名词”或“a half+名词”表示“一半……”。例如：

half a kilo 半公斤 half an hour 半小时

a half day 半天 a half building 半座楼

2）.“一个半”的表示法

表示“一个半”有两种表示法。例如：

一个半小时 one hour and a halfone and a half hours

四个半橘子 four oranges and a half four and a half oranges

9.电话号码及编号

编号既可以用序数词,也可用基数词。例如：

the tenth lesson Lesson Ten 第十课

the fiftieth page page 50第五十页

有的编号习惯上常用基数词。例如：

Room 321(读作three two one) 321号房间 

.4013586(读作Telephone number four 0 one three five eight six)

电话号码4013586 四．数词与其他词的连用 

1. a second time, a third one表示“又一”、 “再一”

Would you like to come to Beijing a second time?你还愿意再次来北京吗？

After eating two cakes,he ate a third one.吃了两块蛋糕后，他又吃了一块。

对比：He has been in Japan for the first time.他第一次来日本。

2.“数词+名词（单数）”用作定语

She is a five-year-old Chinese girl.她是一个五岁的中国女孩。

We’ll have a two-month holiday.我们将拥有一个两个月的假期。

This is a ten-metre-tall tree.这是一棵十米高的树。

五. 倍数的表示法

1. 表示“几倍大小（长短；数量）”，由“倍数+ the size（length, ）”结构组成。如：

The earth is forth-nine times the size of the moon.

2. 表示“……比……大几倍”，由“倍数+形容词（副词）比较级+ than +被比较部分”结构组成。如：

This box is three times bigger than that one.

3. 表示“……是……倍”，由“倍数+ as +形容词+ as +被比较部分”结构组成。如：

Our factory is twice as big as theirs.

数词专项练习 (一) 50题

( ) 1. Lincoln was born on ________.

A. February 12, 1809 B. 1809, February 12

C. 1809, 12 February D. February 1809,12

( ) 2. A _______ boy can sing the English song very well.

A. ten-years-old B. ten years old

C. ten-year-old D. fifth 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. Abraham Lincoln was _______ President of the United States.

A. 16 B. the 16 C. 16th D. the 16th

( ) 5. Do you think there is any room for us ________?

A. two B. the two C. second D. the second

( ) 6. ---How many students are there in your class? ---________.

A. Twenty nine B. Thirty and two C. Forty-five D. fifties

( ) 7. Which number is wrong? _______.

A. Ninety B. Ninteen C. Ninth D. Nineteenth

( ) 8. 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 ( ) 9. The number 4,123 is read _______.

A. four thousand one hundred and twenty-three

B. four thousand and one hundred twenty-three

C. four thousand and a hundred and twenty-three

D. four thousands a hundred and twenty-three

( ) 10. The old professor still works hard though he is _________.

A. in his sixty B. in his sixties C. in sixties D. in the sixty

( ) 11. 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

( ) 12. The basketball team of our school ranks ________ in the match.

A. three B. third C. the three D. the third

( ) 13. ---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

( ) 14. 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.

( ) 15. Our school is not very big. There are only ________ students.

A. nine hundreds of B. nine hundred

C. nine hundreds D. nine hundred of

( ) 16. ---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

( ) 17. ________, Coca-Cola began to enter China’s market.

A. In 1970’s B. In 1970s C. In the 1970s’ D. In the 1970s

( ) 18. 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

( ) 19. Today is the first day and ________.

A. Tuesday is fourth B. Thursday is the fourth

C. second is Tuesday D. a second is Thursday

( ) 20. ---Which room do you live in? ---________.

A. The 201 Room B. Room 201

C. Room 201st D. The 201’s Room

( ) 21. ---How many magazines do you have? ---I have ________.

A. two B. both C. twice D. the second

( ) 22. Three hundred thousand one hundred and seventy means _______.

A. 3,170 B. 3,117 C. 300,170 D. 30,170

( ) 23. On May ________, ________ people traveled round the country.

A. the first, millions B. the first, millions of

C. first, the millionth D. first, millions

( ) 24. ________ of them are dining at school. A. Twelve B. Twelfth C. The twelve D. The 12th

( ) 25. It’s 7:17 is read ________.

A. seven and seventeen B. seven seven

C. seven one seven D. seven seventeen

( ) 26. Four ________ two is two.

A. plus B. minus C. times D. divided by

( ) 27. Three ________ five is eight.

A. plus B. minus C. times D. divided by

( ) 28. Three ________ seven is twenty-one.

A. plus B. minus C. times D. divided by

( ) 29. Forty-two ________ seven is six.

A. plus B. minus C. times D. divided by

( ) 30. 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

( ) 31. 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

( ) 32. 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

( ) 33. September is _________ month of the year.

A. the nineth B. the ninth C. nineth D. ninth

( ) 34. Please pass me _______ book on the left.

A. third B. three C. the third D. the three

( ) 35. ________ is a very tall boy.

A. The twelve B. The twelveth C. The twelfeth D. The twelfth

( ) 36. We have known each other for ________.

A. a year and half B. a year with half

C. a year and a half D. a year with a half

( ) 37. ---“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

( ) 38. ---“What’s the date today?” ---“It’s _________.”

A. Tuesday B. June Fourth

C. June the four D. June the fourth

( ) 39. 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

( ) 40. 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

( ) 41. ________ is less than ________.

A. One-third; two-thirds B. One-third; two-third

C. First-three; first-threes D. One-third; one-three

( ) 42. ---Which lesson did you learn yesterday? ---________.

A. Lesson Seven B. Lesson seventh

C. The 7 Lesson D. 7 Lesson

( ) 43. ---“What’s the date today?” ---“It’s _______.”

A. the fourth of may B. the fourth May

C. May four D. May the fourth

( ) 44. 334 is read ________.

A. three hundreds and thirty four B. three hundreds thirty four

C. three hundred and thirty fourth D. three hundred and thirty-four

( ) 45. In February, there are only _________ days.

A. twenty nine B. twenty-nineth C. twenty-nine D. twenty eight

( ) 46. There will be a comedy on TV at ________ this evening.

A. seven past thirty B. half past seven

C. seven the thirty D. thirty to seven

( ) 47. 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

( ) 48. I’m so tired after ________ walk.

A. three hours B. three hours’ C. three hour’s D. three hour

( ) 49. There are ________ stars in the sky.

A. million of B. millions of C. the million D. a million of

( ) 50. The street is ________ wide.

A. two meters B. two meter C. the two meter D. a two meter

数词专项练习(二)

( ) 76. Tuesday is the _______ day of a week in English.

A. first B. fifth C. third D. fourth

( ) 77. There are _______ seasons in a year in our country.

A. two B. four C. second D. fourth

( ) 78. The game of _______ Olympics will be held in Beijing in 2008.

A. 29 B. the 29th C. the 29 D. 29th

( ) 79. Most of the stars are much more bigger than the sun. But they are

______ light years away from us.

A. thousand B. thousands C. thousand of D. thousands of

( ) 80. _______ of the surface(表面) of the earth is covered with water.

A. First third B. Two thirds C. One three D. Two three

( ) 81. 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

( ) 82. Boys and girls, we are going to learn _______ today. A. Four Lesson B. the fourth lesson

C. the Lesson Four D. the Four Lesson

( ) 83. My lovely daughter is _______.

A. eight years old B. eight-year-old

C. eight year old D. eight-years-old

( ) 84. 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

( ) 85. February 28 should be read as _______.

A. February of the 28th B. February of 28

C. 28 of February D. the 28th of February

( ) 86. ---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

( ) 87. We will have a _______ holiday. What about going to Suzhou?

A. five days B. five day C. five-day D. five-days

( ) 88. We are sure the _______ century will bring us more hopes.

A. twentieth-first B. twentieth-one

C. twenty-one D. twenty-first

( ) 89. ---What is 1/2 and 1/3? ---It's _______.

A. 2/5 B. 1/5 C. 5/6 D. 4/6

( ) 90. At the age of _______, he had his own lab.

A. thirty B. thirtieth C. the thirtieth D. the thirty

( ) 91. Five times five is _______.

A. five B. zero C. ten D. twenty-five

( ) 92. _______ are in the army.

A. Two their sons B. Their two sons

C. Their sons two D. Two sons their

( ) 93. My sister is a student of _______.

A. the First Class B. Class One

C. One Class D. Class First

( ) 94. The boy can count from one to _______.

A. hundred B. a hundred C. one hundreds D. hundreds

( ) 95. Their house is about _______ as big as ours.

A. times three B. three time C. time three D. three times

( ) 96. ---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

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