初中英语数词专项培训课件
文华学院教务网-党员干部公开承诺书
数词讲解专项练习
1 数词的讲解
一、定义：表示数目或顺序
二
、分类：分为基数词和序数词两种。表示数目或数量多少的词叫基数词；表示数目顺序
的词叫序数词。
三、基数词的构成：
1）1-12的基数词是独立的单词，即： one ，two
，three ，four ，five ，six ，
seven ，eight ，nine
，ten ，eleven ，twelve 。
2）13-19的基数词以-teen 结尾。如：
fourteen ，seventeen 等，但13，15，18较特
殊，
13—thirteen, 15—fifteen, 18—eighteen 。
3）20-90的整十位均以-ty 结尾。如： sixty ，ninety
，但20，30，40，50，80较特
殊， 20—twenty, 30—thirty,
40—forty, 50—fifty, 80—eighty 。
4）十位数与个位数之间要加连字符号，如：28-twenty-eight
，96-ninety-six 。
5）百位和十位（若无十位则和个位）之间加and ，如：
148—one hundred and forty-eight
406—four
hundred and six
6）hundred （百），thousand
（千），million （百万），billion
（十亿）等前面即使
有具体的数词，several, some,
many也不能在它们的后面加-s 。如：six hundred， eight
million。如果表示不确定数目时，用hundreds of thousands of
millions of billions of +名词复
数, 前面不能再加数字。
7
）1000以上的数字，从后往前数每三位加一个逗号，第一个逗号前为千
（thousand
），第二个逗号前为百万（million ），第三个逗号前为billion
（十亿）。英语中
无“万”这个词，我们可以用几十个千（thousand
）表示几万，几百个千（thousand ）
表示几十万。如：2，510＝two
thousand five hundred and ten
84，296＝eighty-
four thousand two hundred and ninety-six
274，350＝two hundred and seventy-four thousand
three hundred and fifty。
四、序数词的构成：
1）序数词一般是以与之相应的基数词尾加-th 构成，如： fourth, tenth,
但以下的这些基
数词变为序数词时，有特别之处。
One —first, two
—second, three —third, five—fifth, nine —ninth,
twelve —twelfth
2） 以_ty 结尾的单词， 要先变y 为i, 在加-
eth. 。如：thirty —thirtieth, fifty—fiftieth
3）
以one, two, three 等结尾的多位数词， 要将个位数变成序数词。 如：
twenty-one —twenty-first, one hundred and
one—one hundred and first
注意： 序数词前常用定冠词，
有时还可以用不定冠词 aan 则表示 又一 的意思。
（没
有具体范围的限制） 如：
Mr. Brown has a second car. 布朗先生另外还有一辆车。
He has tried a second time. 他又尝试了一次。
五、数词的应用
1)时刻的表示:小时、点钟、分钟、秒钟要用基数词。
①“几点钟”用基数词加 o'clock 。 o'clock 可省略。如:5点钟 -five
(o'clock ) ②“几点过几
分 ” , ≤30分钟 用介词 past 。如:
7:15— fifteen a quarter past seven
7:30— half past seven
③“差几分几点”用介词 。如:
7:40— twenty to eight 7:45— fifteen a quarter
to eight 。
④日常生活中的时间读法常常简化,直接按基数词的顺序读。如:
7:05— seven o five 7:15— seven fifteen。
2)年月日的表示:
① 年份用基数词,如:
1999年— nineteen
ninety-nine 1900年— nineteen hundred
2000年— two
thousand 1905年— nineteen o five;
② 年用基数词,
日用序数词。如:1998年 6月 8日 写作:June 8, 1998;读作:June the
eighth, nineteen ninety-eight或 the eighth of
June, nineteen ninety-eight。
3)世纪、年代表示法,如:
(在) 90年代 (in) the nineties(在) 19世纪 (in) the
nineteenth century
(在) 18世纪 30年代 (in) the
1730s或 in the 1730's
4)编号的表示:
① 基数词放到名词的后边
, 该名词一般要大写;序数词放到名词的前面,加定冠词。
Lesson 1 the first
lesson第一课 Row 3 the third row 第三排
② Bus No.
3=the No. 3bus 3路公共汽车。
③ 表示住所时不用 No .如:Room
302读作:room three o two 302房间。
④
如果编号的数词比较长,一般用基数词。如:Page 457 第 457页。
⑤
电话号码,用基数词,如:3855633-three eight double five six
double three。
5)分数的表达:
分子用基数词,分母用序数词,分子大于
分母则加 。如:
13 one third 23two thirds
12 a
one half 14one fourth或 a one quarter
34 three
fourths或 three quarters
6) 表示有小数的词用基数词,如:
5.5 five point five
12.135 twelve point
one three five
7)表示百分数,如:
5℅ :five percent
0.8℅ zero point eight percent
注意:分数、百分数与主谓一致
当分数、百分数 修饰可数名词的复数 时, 谓语动词用复数形式 当分数、百分数 修饰不
可数名词时,谓语动词用单数形式 。如:
Eighty percent of the
students in our school come from Henan.
我们学校百分之八十的学生来自河南。
Three fourths of
the students in my class are interested in
English.
我们班四分之三的学生对英语感兴趣。
Two thirds of
the water on the earth is sea water.
地球上三分之二的水是海水。
8)其他用法,如:
①
基数词+单数名词+形容词构成合成形容词。如:
a five-year-old boy
一个五岁的男孩
an 800-metre-long bridge 一座 800米长的桥
girls’ 400-metre relay race 女子 400米接力
②
具体数词+metre (s )kilometre (s )kilo (s ) long high
tall deep away 等。如:
The Changjiang River is
6, 300 kilometres long.长江长 6300公里。
③
表示“几十岁”用基数词的复数形式,如:
in his thirties 在他三十几岁时
④ 倍数的表达:一倍用 once ,两倍用 twice ,两倍以上用基数词+times
。如: five times 5
倍
补充:倍数的表示法:
1.
表示“几倍大小(长短;数量) ” ,由“倍数 + the size(length, amount
width age height.) +of ”
结构组成。如:
The earth
is forth-nine times the size of the moon.
地球的大小是月亮的四十九倍。
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.
这个箱子比那个箱子大三倍。 (这个箱子是那个箱子的四倍。 )
数词练习
( ) 1. Every year, _____ people go to visit
their factory
A. a thousand of B thousands C.
thousand of D. thousands of
( ) 2. Tom has
just finished writing a _________ article.
A.
nine-hundred-words B. nine-hundreds-word
C.
nine-hundred-word D. nine-hundreds-words
( )
3._______ people lost their homes in Japan’ s
earthquake.
A. Two thousands B. Thousand C.
Thousands of D. Thousand of
( ) 4. Last year,
I visited a chemical factory in Baise, there are
about _____ workers in
it.
A. six
thousands B. six thousand C. six thousands of D.
six thousand of
( ) 5. About _______of the
students in our class were born in the_____.
A. two-thirds, 1990s B. two-thirds, 1990
C. two-third, 1990s D. two-third, 1990
( )
6. Nowadays of business letters are written
in English.
A. two third B. two thirds C. two
three C. second three
( ) 7. — If a=4,
b=5, what’s the answer to the question “ a + 2ab
+1 =?”
—
A. Forty-fifth B. Forty-five
C. Twenty-three D. One hundred and twenty-one
( ) 8. — How often do you exercise?
—
_________a week.
A. Two B. Twice C. Second
( ) 9. 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
( ) ow is the boy’s ________ birthday.
A. seventh B. seven C. seventeen D. a seventh
( ) 11.— Which is the biggest number of the
four?
— .
A . One-third B . Two-thirds C .
A half D . A quarter
( ) 12. — Excuse me,
where can I buy a jacket?
— You can go to the
Men's Wear Section on the_________ floor.
A.
two B. twice C. second D. three
( )13. __ _
of the land is covered with trees and grass in
Pingjiang, Yueyang.
A. Three fives B. Three
fifths
C. Three fifth D. Threes fifth
( )
14. September is _____ month of the year.
A.
ninth B. nine C. the nine D. the ninth
( )
15.— How was your day off yesterday?
—
Perfect! It was my grandma’ s ________ birthday.
We had a big cake.
A. eighty B. eightieth C.
the eightieth D. the eightieth
( ) 16. —
Excuse me, how can I get to the museum?
—
Sorry. It's my______ time to be here.
A. one
B. first C. once
( ) can see _______ if you
go out at night.
A. million stars B. thousand
of stars
C. hundreds stars n of stars
( )
18.— Is this your ________ visit to my hometown,
Zunyi?
— No. I’ ve been here for many times.
A. one B. the first C. first D. twice
( )
than nine students are doing sports now.
A .hundreds B. hundred of C. hundred D.
hundreds of
( ) 20. Now, everybody, please
turn to Page ________ and look at the
________picture. A. Fifth; five B. Five; fifth
C. Fifth; fifth D. Five; five
( )21. For
breakfast, I usually have______ and two pieces of
bread.
A. a cup of mild half B. half a cup of
milk
C. a half milk cup D. half a milk cup
( ) 22. The government of Chongqing is
building_______ cheap and good houses for
the
people.
A. thousand B. thousands C. thousand
of D. thousands of
( ) 1.
There are about ________ students in our school.
A. two thousand of B. two thousands C. two
thousands of D. two thousand
( ) 2. There are
________ students in our grade.
A. three
hundreds and forty-five B. three hundred and forty
five
C. three hundred forty-five D. three
hundred and forty-five
( ) 3. Sunday is
________ day of the week.
A. the first B. one
C. he seventh D. the seven
( ) 4. Please come
to my office ________.
A. at half past eight
B. at half passed either C. in half past eight D.
on half past eight
( ) 5. If you want to go to
the cinema, take ________.
A. bus No. the
ninth B. the No. 9 bus C. No. 9 the bus D. No. the
ninth bus
( ) 6. The Greens came to China
________.
A. in 1984 October 27 B. in October
27, 1984
C. on 27, 1984 October D. on October
27, 1984
( ) 7. The story took place in
________.
A. nineteen centuries B. nineteen
century
C. the nineteenth century D.
nineteenth century
( ) 8. I was told they
would stay in China for ________.
A. one and a
half years B. one and a half year
C. one and
half years D. one half and one year
( ) 9.
Tomorrow we are going to learn ________.
A.
Lesson Second B. the Lesson Two C. Lesson Two D.
second lesson
( ) 10. I think that the first
day of spring is ________.
A. twenty-two of
March B. twenty-second on March
C. twenty-two
in March D. the twenty-second of March
( ) 11.
________ letter of the word “restaurant” is “n”.
A. The nineth B. Nineth C. The ninth D. Ninth
( ) 12. We talked for ________.
A.
half a hour B. half hour C. an hour half D. half
an hour
( ) 13. The bus will leave at ________
this afternoon.
A. three fifteen B. three and
fifteen C. three quarters D. fifty to three
(
) 14. The earth is ________ the size of the moon.
A. 49 the times B. 49 times C. 49 time D.
fourty-nine times
( ) 15. It’s a ________
ruler.
A. two-feet-long B. two feet long C.
two-foot-long D. two-foot-long
( ) 16.
________ students are planting trees.
A.
Several hundreds B. Several hundred C. Five
hundreds D. Five hundred of
( ) 17. ________
to finish quickly.
A. No every student wants
B. No every student want
C. Not every student
wants D. Not every student want
( ) 18.
________ ago, our country was covered by thick
forests.
A. Several million of year B. Several
million year
C. Several million years D.
Several million of years
( ) 19. The weight of
the moon is only about ________ of that of the
earth.
A. one eighty B. one of eighty C. one
the eightieth D. one eightieth
( ) 20. It’s
11:45. Yes, it’s ________.
A. fifteen past
twelve B. fifteen from twelve
C. a quarter
past eightieth D. a quarter to twelve
( ) 21.
What date is it? It’s ________.
A. July
twentieth-first B. of July twenty-first
C. the
twenty-first of July D. a quarter to twelve
(
) 22. ---- ________, please? ---- It was April
25th.
A. How old are you B. What was the date
yesterday
C. What time was it D. What day is
it today
( ) 23. I have ________ things to do.
I can’t play ________.
A. many, no more B. a
lot of, any more C. much, more D. much, any more
( ) 24. I have a ________ paper on my desk.
A. little B. lot C. lots D. little of
( ) 25. This is ________.
A. the
question thirty B. the question thirteen C. thirty
question D. question thirteen
( ) 26. ________
of the work has been done.
A. Two third B. Two
three C. Two thirds D. Two third
( ) 27. It’s
________ now. Let’s hurry.
A. half passed six
B. thirty passed six C. half pass six D. half to
seven
( ) 28. What’s the date today? It’s
________.
A. the June fourth B. the fourth of
June C. of June the fourth D. fourth June
( )
29. Next week we’re going to lean ________.
A.
unit 5 B. the unit 5 C. Unit 5 D. 5 Unit
( )
30. Do you have much work to do this weekend? Yes,
I have to write a ________
paper.
A. two-
thousand-word B. two-thousand-words
C. two-
thousands-word D. two-thousands-words
( ) 31.
The tree is ________ tall.
A. forteen feet B.
fourteen feet C. fourteen foot D. fourty foot
( ) 32. Fifty plus ________.
A. fourty is
ninety B. forty is ninety C. thirty is ninety D.
fourty is ninety
( ) 33. There are ________
students in this school.
A. four hundred
fifty-two B. four hundreds fifty-two
C. four
hundred and fifty-two D. four hundred and fifty
two
( ) 34. My home is about ________ away
from the school.
A. three hundred metre B.
three hundreds metres
C. three hundred metres
D. three hundreds metre
( ) 35. December is
________ and last month is a year.
A. the
twelveth B. twelveth C. the twelfth D. twelfth
( ) 36. ________ of the teachers in the school
are from colleges.
A. Three quarters B. Two-
third C. Two fifth D. Two-nineths
( ) 37.
There are two world wars during ________ century.
A. the twenties B. the twentieth C. twenties
D. twentieth
( ) 39. In the forties,
his father served in the New ________
Army（新四军）,while this
mother
worked in the
________ Route Army.（八路军）
A. the twenty-first
lesson B. Lesson Twenty First
C. the 21th
lesson D. Lesson 21th
( ) 40. He will stay
here for ________.
A. one and half month B.
one and a half month
C. one months and half D.
one and a half months
( ) 41. ---- What’s the
date today? ---- It’s ________.
A. nine B.
Monday C. June 5 D. 11:00
( ) 42. ---- Would
you like to eat ________ apples? ---- No, thank
you.
A. more two B. two more C. two another D.
two else
( ) 43. He said he would come back in
________.
A. one or two days B. a or two days
C. one and two days D. a day and two
( ) 44.
--- How often do you write to your parents abroad?
---- ________.
A. Twice a month B. Second
times a month
C. A second time a month D.
Second a time a month
( ) 45. ________ people
died in the traffic accidents in the world.
A.
Thousand of B. Thousands of C. Ten thousands of D.
Ten thousand of
( ) 46. What is the time? It’s
________. (4:25)
A. four twenty-five B. four
past twenty-five C. twenty-five to four D. four
twenty five
( ) 47. Mr. Smith lives on
________ floor.
A. fiveth B. fifth C. the
fiveth D. the fifth
( ) 48. He began to learn
English in his ________.
A. fifty B. fiftieth
C. fifties D. fifth
( ) 49. His sister was
born ________.
A. in 1998, October 21 B. on
1998, October 21
C. in October 21, 1998 D. on
October 21, 1998
( ) 50. When he was ________,
he left home to work in different cities.
A.
in his twenty B. at his twenty C. in his twenties
D. at his twenties
( ) 51. I’m ________
than you.
A. five years older B. fifteen year
old C. fifteen years D. fifteen old
( ) 52.
---- How old are you? ---- I’m________.
A.
fifteen years old B. fifteen year old C. fifteen
years D. fifteen old
( ) 53. ---- How many
teachers are there in your school? ---- ________,
but I’m not sure.
A. Hundreds B. Hundred C.
Hundreds D. One hundred
( ) 54. About ________
of the books in our school library are written in
Chinese.
A. four-fifth B. four-fifths C.
fourth-fifths D. fourths-fifth
( ) 55. They
planted ________ trees on the farm last year.
A. two hundreds B. two hundred of C. two
hundreds of D. hundreds of
( ) 56. I think
that the ________ century will bring us more
hopes.
A. twenty-one B. twentieth-first C.
twenty-first D. twentieth-one
( ) 57. I
think________ lesson is the most difficult in this
book.
A. five B. fifth C. the fifth D. fifteen
( ) 58. ________ travelers come to visit our
city every year.
A. Hundred of B. Hundreds of
C. Five Hundreds D. Hundred
( ) 59. We have
five ________ students in our school.
A.
hundred of B. Hundreds of C. hundred D. hundreds
( ) 60. ________ of the teachers in the school
is 300. ________ of them are women
teachers.
A. The number, first fourth B. The number, one
fourth
C. A number, one second D. A number,
three quarters
( ) 61. The English swimmer
came in ________ third.
A. a B. an C. D. the
( ) 62. ________ I found out that he was away
in town.
A. Other day B. One day C. A day D.
Some day
( ) 63. Play ________ music for me,
will you?
A. a B. a piece of C. an D. some
piece of
( ) 64. ________ of the land is
covered ________ water.
A. Two third, by B.
Two three, with C. Two thirds, by D. Two third,
with
参考答案：
一、1. D 2. D 3. A 4. A 5.
B 6. D 7. C 8. A 9. C 10. D 11. C 12. D 13. A 14.
B 15. C 16. B
17.
C 18. C 19. D 20. D 21.
C 22. B 23. B 24. A 25. D 26. C 27. C 28. B 29. C
30. A 31. B 32. B
33.
C 34. C 35. C 36. A
37. B 38. A 39. A 40. D 41. C 42. B 43. A 44. A
45. B 46. A 47. D 48. C
49. D
50. C 51. A
52. A 53. D 54. B 55. D 56. C 57. C 58. B 59. C
60. B 61. C 62. B 63. B 64. C