数词

1数词语法的基本框架

(1)基数词：

(2)读数：108→one hundred and eight[注]：(1)百and十—个

(3)基数词→序数词

one

two

three

four

five

eight

nine

twelve

twenty

thirty

twenty-one

forty-six

【答案】First second third fourth fifth eighth ninth twelfth twentieth thirtieth twenty-first forty-first

(4)百、千、百万、十亿的用法

1. hundred\thousand\ million\billion前有数字不加 1。

2. 用作名词时复数表示“成…上…”,后面必须要有 2,

如：(五百) 3,(成百上千的) 4

【答案】

1.s 2. s+of 3. five hundred 4.thousands of

(5)分数

“子基母序，子>1母加s。如：

1/5→ 1;

2/3→ 2;

4/7→ 3;

1/2→ 4;

1/4→ 5;

3/4→ 6.

【答案】

1. one fifth 2. two thirds 3. four sevenths 4. a half 5. a quarter 6. three quarters

(6)次数

(一次),

(两次),

(三次)

【答案】

1.once, 2.twice, 3.three times

(7)倍数

1(两倍)，

2 (三倍)

asas :表示. 3

如：He is as 4as his younger sister.(他和他妹妹一样兴奋)

This room is 5 that one(这个房间跟那个房间的两倍大)

【答案】

1. twice 2. three times 3. 和.一样 4. as excited as 5. twice as big as

(8)the+序数词与a +序数词的区别

1. the +序数词意思为“ 1 ”

2. a +序数词意思为“ 2 ”

如：John failed the test twice.But he would like to have 3try.(约翰考试失败了两次，他想再试一次)

Hainan is 4island in China.(海南是中国的第二大岛)

【答案】

1.第几 2. 再一次 3. a third 4. the second

(8)、数词的用法：

1、表示年份：2002: twenty thousand and two ; 1976 : nineteen seventy-six.

2、表示日期：12月1日: Dec.1st或the first of December;2002年11月8日: Nov. 8th, 2002.

3、表示时刻：5：15→ five fifteen或a quarter past five ; 8：30→ eight thirty或half past eight ;10：45→ ten forty-five或a quarter to eleven.

4、表示编号：Room 105; P.5→

5、年代的表达方式通常为“in+the+数词的复数”。如：in the 1980s 在20世纪80年代

6、“半”的表达：1/2→ 1 , 半小时→ 2 ,1.5小时→ 3 或 4 .

7.在我30多岁时 5

【答案】

1. a half 2. half an hour 3. one and a half hours 4. one hour and a half 5.In my thirties

一、数词在选择题中的运用

1. Alice felt very happy to receive some gifts on her ____ birthday. Nobody gave her gifts on her former eleven birthdays.

A. eleventhB. twelfthC. thirteenthD. twelve

【答案】B

【解析】句意：爱丽丝在她的____生日收到一些礼物，她感到非常高兴。没有人在她前11次生日送给她礼物。此处需填序数词，表示在某人多少岁生日时，再结合题意，此处是指十二岁的生日,on one’s+序数词+birthday,在某人多少学生日时。故选B。

2.Today postcards are the ____ most popular collection in the world after stamps and coins.

A. firstB. secondC. thirdD. fourth

【答案】C

【解析】句意：现如今，明信片是世界上____流行的收藏品，仅次于邮票和硬币。结合语境可知此处是指世界上第三大最流行的，应用序数词。故选C。

3.Although I have failed three times, my father encourages me to have a ____ try.

A. fourB. thirdC. fourthD. five

【答案】C

【解析】句意：尽管我已经失败了3次，我的父亲鼓励我尝试第____次。结合语境可知此处是指再尝试第4次，应用序数词。故选C。

4.In his_____，Wilson returned to his hometown and began to teach .

A.thirtyB.thirtiesC.thirtieth

【答案】B

【解析】句意：Wilson在30多岁的时候，回到了家乡开始从事教育事业。In one’s thirties在某人三十多岁的时候。故选B。

5.Please tum to Pageand read thestory.

A. Ten; two B. Ten; second

C. Tenth; second D. Tenth; two

【答案】B

【解析】句意：请翻到第十页，阅读第二个故事。所以第一个空填基数词，第二个空填序数词。

6.I live in Room 403, Sam lives in the room right above mine, on the _____ floor.

A.thirdB.threeC.fifthD.five

【答案】C

【解析】句意：我住在403房间。萨姆正好住在我的上面。在五楼。403房间在四楼，萨姆在上面，就是第五层楼。fifth第五，five五。空格后的名词是单数，所以这里用序数词，故排除B和D，根据I live in Room 403，可知Sam住在5楼。故选C。

7.--- _____ Haojiang Peach Blossom(桃花) Festival took place in late February. Did you go there?

--- Yes. I took the No. 36 bus and then a _____ walk to Ju Feng Temple.

A. The seventh; 20-minute

B. The seven; 20-minute

C. The seventh, 20 minute’s

D. The seven; 20 minutes’

【答案】A

【解析】第一个空表达第七届之意，要用序数词。二十分钟的步行路程：20-minute walk或者20 minutes’ walk.结合句意，故选A。

8.— What day is it today?

—It’s Monday, and it’s mybirth May is themonth of a year.

A.fiftyB.fifteenC.fifthD.five

【答案】C

【解析】句意：五月是这一年中的第五个月。表示在一年中的第几个月用the+序数词，表示第几;根据题意可知选C

9.It is reported thatpeople in the world are suffering from the HlNl flu.

A.ten thousandsB.thousands ofC.several thousands of

【答案】B

【解析】句意：据报道在世界上有数千计人们在遭受H1N1流感。此题考查数词，thousands of数千计，根据句意，应选B。

10.It’s reported that there are more than 300 ____ smokers in China, nearly a third of all the smokers in the world.

A. millionB. millionsC. million ofD. millions of

【答案】A

【解析】考查概数词的用法。句意为：据报道在中国有超过三亿吸烟者，这几乎是世界上所有吸烟者的三分之一。million前是具体数字，则million不加s, million后是of,则million加s,为成千上万的。故选A。

11.Playing basketball is so exciting that ____ people play it for fun.

A. millionB. two millionsC. million ofD. millions of

【答案】D

【解析】考查概数词的用法。句意：打篮球如此令人兴奋以至于____人玩它来取乐。此处表示概数，用millions of。故选D。

12.—What do you think of the environment here?

—Wonderful! ____ of the landcovered with trees and grass.

A. Two fifths; is B. Two fifth; is

C. Two fifths; areD. Two fifth; are

【答案】A

【解析】考查分数和主谓一致的用法。句意“你认为这儿的环境怎么样?”“好极了!____的土地被树和草覆盖。”“五分之二”的正确表达应该为two fifths,符合分子超过1时分母的序数词后面要加?s;因为句中land是不可数名词，所以空格处的谓语动词用单数形式is，故选A

13.____ of the girls in our class will join the summer camp to visit England.

A. Three fivesB. Third fifths

C. Three fifthsD. Third fives

【答案】C

【解析】考查分数的用法。句意为：我们班____女生将参加游览英国的夏令营活动。五分之三的表达是 three fifths,故选C。

二、用所给数词的适当形式填空

总结出以下规律：

1.Our team won the ______ prize in the competition.(two)

方法点拨 第1步：根据试题可知本题考查数词转换，且括号里给出的词是two;第2步：空格后给的名词为prize，且语境表示“我们队在比赛中获得第二名”，此处表示“第二”应用序数词。故填second。

2.I visit my grandparents ______ a week.(one)

方法点拨 第1步：根据试题可知本题考查数词转换，且括号里给出的词是one;第2步：空格后给的词组为a week，并联系语境可知此处表示一周一次。故填once。

练一练

1.Two _______ of the students in our class have been to Disneyland somewhere.(three)

【答案】thirds

【解析】句意为：我们班三分之二的学生去过某地的迪士尼乐园。此处考查分数的正确表达。分子用基数词，分母用序数词，分子大于1，分母加-s。故填thirds。

2.Christmas comes in the ________ month of a year.(twelve)

【答案】twelfth

【解析】句意：圣诞节在一年中的____月份。根据常识可知，圣诞节在十二月份，此处表示第十二个月，需用序数词。故填twelfth。

3.Yancheng has the ________ largest population of more than 8 million in Jiangsu Province.(two)

【答案】second

【解析】句意：盐城有八百多万人口，是江苏省第二大人口城市。根据空格前的the可知应将two变为序数词形式，故填second。

4.There are seven days in a week. And Thursday is the _____ day.(five)

【答案】fifth

【解析】句意：一周有七天。星期四是第五天。根据句意此处指“第五”，故填fifth。

5.Shanghai is a beautiful city. I have been there ______.(two)

【答案】twice

【解析】句意：上海是座美丽的城市。我已经去过那里两次了。根据句意此处指次数。故填twice。

6.Today is the little boy’s _______ birthday.(nine)

【答案】ninth

【解析】句意：今天是这个小男孩的第九个生日。根据句意此处指第九个，故填ninth。

7.Sophie has read four novels this term, and the book she is reading now is the _____ one.(five)

【答案】fifth

【解析】句意：苏菲这学期已经读了四本小说了，她现在正在读的书是第五本。根据句意可知此处指的是第五本，应用序数词。故填fifth。

8.December is the ________ month of a year.(twelve)

【答案】twelfth

【解析】句意为：十二月是一年的第十二个月。此处需填序数词，表示第十二，故填twelfth。

9.What a lovely present the old lady has received for her ________ birthday! (eighty)

【答案】eightieth

【解析】句意：这个老妇人在她八十岁生日的时候收到了一件多么可爱的生日礼物啊!此处表示某人多少岁生日，应填序数词形式。故填eightieth。

三、

1.托尼的妈妈看上去年轻漂亮。难以想像她已经五十几岁了

Tony’s mum looks young and beautiful. It’s hardto she is already in her.

2. 我住在403房间。萨姆正好住在我的上面。在五楼。403房间在四楼，萨姆在上面，就是第五层楼

I live in Room 403, Samin the room right above mine, on the _____ floor.

3. 鲍勃知道怎么砍工程的价格。我确信他能用更少的钱更少的人做这项工作。

Bob knows how to cut the cost of the project. I’m sure he can do the work with _____ money and ______ people.

4. 孩子们。请翻到第五页，看第五幅图画

Boys and girls, please turn to Page _____ and look at the _____ picture.

【答案】1.imagine ，fifties 2.lives，fifth 3.less,fewer 4.Five; fifth

二、翻译句子

1. 他在四十多岁时才出名。

2. 每年成千上万的树被种。

3.你能再吃两块蛋糕吗?

4.父亲节在六月的第三个周日。

5.我们学校学生总数是1000，其中三分之二是女孩子。

【答案】

1. He became famous in his forties

2. Thousands of trees are planted every years

3. Would you like to have another two pieces of cakes

4. Father’s Day is on the third Sunday of June

5. The number of students in our school is 1000, and two thirds of them are girls

四、数词在语篇中的运用

Mr.Green is teacher in a middle school.In his 1 (三十多岁)，he went to Russia. He has lived Russia for about2 (一年半). In the school, 3 of(总数) students 4about 6 (两千).And about 6 (五分之三)students are boys. 7 (许多)boys like playing basketball.Tom is a 8 (十六岁的) student comes from 9 (三年级四班).He often plays basketball 10 (一周两次). Once The 11(第二十届) World Basketball Championship began12the morning of May 25, 201013Moscow, Russia.there were 14 (成千上万)people watching the game. But Tom didn’t go to watch because he had to stay in 15 (406室) with his classmates to study English.

【答案】

1. thirties

2. one and a half years

3. the number

4. is 5. two thousand

5. three fifths

6. a number of

8. sixteen-year-old

9. Class Three Grade Four

10. twice a week

11. the twentieth

12. on 13. in

14. thousands of

15. Room 406

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