小升初 英语总复习资料 第五讲 数词
课题 第五讲：数词
教学 目标 1、基数词和序数词的构成及用法； 2、数词的运用。
重点 难点 基数词变序数词规则的掌握
第一节 【知识梳理】
基数词：
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，也不能在它们的后面加s。如：600—six hundred，8百万—eight million。
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。
8.hundred，thousand，million用复数形式修饰名词时要用“of＋复数名词”，如：数以百计的年轻人hundreds of young people；数以千计的书thousands of books。注意：hundreds of ／thousands of／millions of ＋复数名词，其前面不能加具体的数词，但可加several或 many。
序数词：
由基数词转变而来，表示“这是第n个”
1.口诀巧记基数词变序数词：
一、二、三，特殊记， (first，second，third)
八去“t”，九去“e”， (eight—eighth，nine—ninth)
“ve”要用“f”替， (five—fifth，twelve—twelfth)
见“y”变成“i”和“e”，词尾加上“th”， (twenty—twentieth，forty—fortieth)
若是遇到几十几，只变个位就可以。
(twenty-five—twenty-fifth)
其余情况均在基数词后加th。
如： six—sixth, nineteen—nineteenth , hundred— hundredth, thousand—thousandth等。
2.序数词有时用缩写形式：
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
【例题精讲】
1. Thursday is the f______ day of the week in the UK.
【答案与解析】序数词的用法及文化习俗。Thursday是周四，但在英国的周历中，周日是一周的第一天，所以周四是一周的第五天而不是第四天，故答案为fifth。
2. Women’s Day is on the e______ of M_______.
【答案与解析】 月份、序数词的用法及节假日文化常识。妇女节是每年3月8日，故答案分别填eighth和March。
3. ( ) How do we say “99,118”
A. ninety-nine thousand and one hundred and eighteen
B. ninety-nine thousands one hundreds and eighteen
C. ninety-nine thousand one hundred and eighteen
D. ninety-nine thousands and one hundred and eighteen
【答案与解析】基数词的读法。注意：1,000以上数目的读法：自右向左每三位划一个分节“’”，第一个分节读thousand, 第二个分节读million, 第三个分节读billion或thousand million ，且hundred, thousand, million等用单数形式。注意，百位数hundred与十位数(或个位数)之间要用and连接。十位数与个位数之间要用连字符号“-”。故选C。
随堂演练
翻译下列短语。
1. 60名工人
2. 15本英语书
3. 8杯咖啡
4. 4把椅子
5. 12月31日
6. 7月1日
7. 第九周
8. 40年前
Keys:
1. sixty workers
2. fifteen English books
3. eight cups of coffee
4 .four chairs
5. the thirty-first of December
6. the first of July
7. the ninth week
8. forty years ago
把下列基数词改成序数词。
one--- two--- three---
nine--- fourteen--- twenty---
thirty-five---
Keys:
one---first two---second three---third
nine---ninth fourteen--- fourteenth twenty--- twentieth
thirty-five thirty-fifth
单项选择。
( )1. ---How long is the new bridge Do you know
---Yes. It’s about _______.
A. one thousand one hundred and eighty meters
B. one thousand and one hundred fifty meters
C. two thousands one hundred forty meters
D. two thousands seventy and three meters
( )2. There are _______ days in a year.
three hundred and sixty-five
B. three hundred and sixty five
C. three hundred sixty-five
D. three hundreds and sixty- five
( )3. I’ve read _______ sports news about the F1 race today.
two B. pieces
C. two pieces D. two pieces of
( )4. ---Can I help you
---I’d like _______ for my twin daughters.
A. two pair of shoes B. two pairs of shoe
C. two pair of shoe D. two pairs of shoes
( )5. Jack is now in _______ .
the three grade B. Grade Third
C. Grade Three D. the Third Grade
( )6. Now children, turn to page __and look at the __ picture in Lesson Two.
A. twentieth; one B. twenty; one
C. twentieth; first D. twenty; first
( )7. ---It’ 9:45. ---Yes, It’s _______ .
A. fifteen from ten B. a quarter to ten
C. fifteen past nine D. a quarter past ten
( )8. He believed his lucky number was ten, so he decided to live on the _______ floor.
lowest B. ten
C. tenth D. the tenth
( )9.I have made _______ dumplings. Now I’m making the _______ one.
twenty; twentieth-first
B. twenty; twenty-first
C. twentieth; twenty-first
D. twenty; twenty-one
( )10.Time is not enough for so much work. _______ people are needed, I think.
Other two B. Only two
C. Two more D. Two others
( )11.Both of the two rulers are broken. I want to buy a _______ one.
A. three B. third C. forth D. 不填
( )12.This is a big class, and _______ of the students are girls.
two third B. second three
C. two thirds D. two three
( )13.---What’s one fourth and a half , do you know
---Yes, it’s ______.
two sixths B. three fourths
C. one three D. three sixths
Keys:
1-5 AADDC 6-10 DBCBC 11-13 BCB
【巩固练习】
根据句意和首字母或中文意思，写出句中所缺单词。
1. August is the e_________ month of a year.
2.We’ll meet at a q_________ to eight, that is to say, 7:45 at the bookstore.
3.---Do you know what Taiwan Island was like t_________ of years ago
---Yes. About 20,000-30,000 years ago, it was part of the mainland.
4.Liu Xiang got the _________ (one) in his competition of the 2004 Olympic Games.
5.Look at the photo! The _________（第二个） man from the left is my grandpa.
6.My aunt’s office is on the _________（第六）floor.
7.The Smiths had a big party to celebrate their son’s _________（二十岁）birthday last Sunday.
8.The boy has collected more than _________（四十）stamps from different countries.
Keys:
1.eighth 2.quarter 3.thousands 4.first 5.second 6.sixth 7.twentieth 8.forty
1
( ) 1 There are ___ days in a year.
A. three hundreds sixty-five B. three hundreds and sixty-five
C. three hundred and sixty-five D. three hundred and sixty five
( ) 2 There are____ students in this school.
A. eight hundreds and forty-six B. eight hundred and forty six
C. eight hundred and forty-six D. eight hundred forty-six
2
( ) 1 ______people visit this museum every day.
A. Hundred B. Hundreds C. Hundred of D. Hundreds of
( ) 2 There are two___ people in the meeting room.
A. hundred B. hundreds C. hundreds of D. hundred of
( ) 3 Every year ___ watch NBA on TV.
A. million people B. millions of people
C. millions people D. million of people
( ) 4 ____ trees have been planted in our school in the past 10 years.
A. Thousands of B. Two thousands
C. Thousand of D. Two thousand of
( ) 5 Look! There are ___ in the sky.
A. thousand stars B. thousand of stars
C. thousands of stars D. thousands of star
3
( ) 1 My brother is in____.
A. Three Class, One Grade B. Class Three, Grade One
C. Grade One, Class Three D. class three, grade one
( ) 2 We are going to learn___ this term.
A. book six B. six book C. the book six D. Book Six
( ) 3 Please turn to___. Let's read the text aloud.
A. Page Two B. the page two C. second page D. page second
4
( ) 1 We can say the number 78, 645 in English like this____.
A. seventy-eight thousand and six hundred and forty-five
B. seventy-eight thousand six hundred and forty five
C. seventy-eight thousand six hundred and forty-five
D. seventy eight thousand six hundred and forty-five
( ) 2 "The year 1999" should be read "The year____".
A. nineteen and ninety-nine
B. nineteen ninety-nine
C. one thousand nine hundred and ninety-nine
D. nineteen hundred and ninety-nine
5
( ) 1 He will come here ____ tomorrow morning.
A. at fifth B. at ten C. on two D. till tenth
( ) 2 Every day he begins to do his homework ___.
A. at ten past seven B. at seven pass ten
C. on ten past seventh D. until ten
( ) 3 He was doing some washing ____.
A. at eight yesterday morning B. yesterday morning eight
C. yesterday morning at eight D. by eight yesterday morning
6
( ) 1 He began to work there____.
A. on his fifty B. at age of fifty C. when he fifty D. in his fifties
( ) 2 They moved to Beij ing _
A. in 1980s B. in the 1980 ' C. in the 1980s D. on the 1980's
( ) 3 We all like the boy.
A. of ten years old B. ten-year-old C. at ten old D. of age of ten
( ) 4 She was ___ her early twenties when she went abroad.
A. at B. on C. of D: in
7
( ) 1 There are____ months in a year. December is the____month of the year.
A. twelve; twelve B. twelve; twelfth
C. twelfth; twelve D. twelve; twelveth
( ) 2 During____ century, the world population has already reached 6 billion.
A. twenty B. the twentieth C. twentieth / D. the twenty
( ) 3 Sunday is the____ day of the week.
A. seventh B. first C. second D. third
( ) 4 Autumn is season in a year.
A. the fourth B. the third C. a third D. the threeth
( ) 5 Tom was to get to school and I was ______.
A. first; ninth C. the first; the ninth
B. a first; a ninth D. the second; the nineth
8
( ) 1 -What's the date today
-Its___.
A. Friday B. time to go C. cloudy D. June 4th
( ) 2 Jenny was born
A. on July 10, 1987 B. in July 10, 1987
C. in 1987, July 10 D. on 1987, July 10
( ) 3 Monday is the second day, and_______.
A. Tuesday is the fourth B. Thursday is the fifth
C. the second is Tuesday D. the second is Thursday
9
( ) 1 About____ of the books in our school library are written in Chinese.
A. four-fifth B. four-fifths C. fourth-fifths D. fourths-fifth
( ) 2 ___ of the students are girls in our class.
A. Two three B. Two threes C. Two thirds D. Second three
( ) 3 ___ of the world's books and newspapers are written in English.
A. Three quarters B. Three quarter C. Thirds four D. Threes fourth
10
( ) 1 Tom is____ in the row.
A. a second B. the second C. two D. second
( ) 2 The girl wanted to sing____ song in English.
A. the others B. a second C. other D. the second
( ) 3 Now let me have____.
A. the third try B. a third try C. third try D. this third try
参考答案：
1. 1-2 C C 2. 1-5 D A B A C 3. 1-3 B D A
1- 2 C B 5. 1-3 B A A
6. 1-4 D C A D 7. 1-5 B B B B C 8. 1-3 D A B
9. 1-3 B C A 10. 1-5 B B B
【课外拓展】
This is our class. There are fifty students in our class. There are twenty-five boys and twenty-five girls. There is an American student in our class. Her name is Mary. Her English is very good. We all like her. She likes eating bread and cakes. She likes drinking milk and orange juice. We like eating rice and drinking tea. We are very happy together.
I. Read carefully and write “T” for True and “F” for False beside the statements. 仔细阅读，在下列句子前标上T（对）或F（不对）。( 10分 )
( )1. There is an American boy in our class.
( )2 .Mary is an English girl.
( )3. She likes rice, tea, and bread.
( )4. We are good friends.
( )5. There are twenty-four girls in our class.
II. Choose the best answer, A, B, C or D, to these questions.
在A, B, C, D中选出一个最佳答案。
( )1. How many students are there in the class
A. Twenty-five. B. Fifty-five.
C. Fifty. D. Seventy-five.
( )2. What does the American girl like eating
Bread B. Cakes
C. Cakes and bread D. Oranges
( )3. What does she like drinking
A. Orange juice. B. Milk.
C. Orange juice and milk. D. Apple juice.
( )4. What do the Chinese students like eating and drinking
A. Rice and tea. B. Bread and milk.
C. Cakes and orange juice. D. Bread and tea.
