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数词

数词
数词

一. 基数词

(一)基数词1~12是独立的单词。

(二)13~19基本上是在3~9后加-teen构成。但13,15,18有点特殊。

(三)20~90的整十位数是在3~9后加-ty构成,但20,30,40,50有点特殊。

(四)“几十几”是由十位数词加连字符“-”加个位数合成。

(五)英语中无“万”的单位,但有“百”、“千”、“百万”。表达方式如下:一百一千一万

十万一百万一千万

(六)三位数数词要在百位和十位之间加and.

例:365

(七)1000以上的数字要先把数字分段,从后向前数每三位数一个单位,倒数第一个空格前的数位为千(thousand),第二个空格前的数位为百万(million),第三个空格前的数位为十亿(billion)。

例:47 635 848

二. 序数词

(一)序数词除了first, second, third有各自的形式外,其余的都是基数词上加-th构成,但以-y结尾的基数词要变y为ie再加th,以-ve结尾的要变ve为f再加th。以-t结尾的直接加-h。十位以上的基数词变成序数词时,只把个位数变成序数词即可,十位不变。变化口诀:8去t,9去e,ve变f,y变ie。

第一~第十

第十一~第二十

第二十一~第二十三

(二)序数词的缩写形式是由阿拉伯数字加上序数词的最后的两个字母构成。

1. More than two_______ years ago, people knew little about the universe.

A. thousands

B. thousands of

C. thousand of

D. thousand

2. Nearly nine _________trees have been planted along the lake since 1998.

A. hundred B .hundred of C. hundreds D. hundreds of

3. ________dollars is a lot of money.

A. Six thousand

B. Six thousands of

C. Six thousands

D. Six thousand of

4. Can you write the number eighty-five thousand six hundred and twenty-six? .

A. 85662

B. 85626

C. 58662

D. 58626

5. It is over _________years since our Party was founded in 1921.

A. seventy

B. ninety

C. eighty

D. eightieth

6. There are usually ________days in a year.

A. three hundred sixty-five

B. three hundred and sixty-five

C. three hundred sixty five

D. three hundreds and sixty-five

7. I like ____best in this book.

A. Lesson One

B. Lesson First

C. the lesson one

D. first lesson

8. What time is it? It’s__________.

A. forty-five past four

B. four past forty-five

C. forty-five four

D. fifteen to six

9. September is ___________month of the year.

A. nine

B. ninth

C. a ninth

D. the ninth

10. It takes me ________to finish my homework every day.

A. a half and two hour

B. two hour and a half

C. two and a half hour

D. two and a half hours

11. Tom has collected about _______Chinese stamps.

A. two hundred forty-six

B. two hundred and forty-six

C. two hundred forty six

D. two hundreds and forty-six

12. How far is it from your home to your office? _________walk.

A. Twenty minutes

B. Twenty minutes’

C. Twenty minute’s

D. Twenty-minutes

13. There are twenty boys in our class .________are from America.

A. Two they

B. The second

C. Two of them

D. The two of them

14. Mr. Smith has a ____son.

A. ten years old

B. ten year old

C. ten-years-old

D. ten-year-old

15. Before he went to America, Mr. Li had learned __________English words.

A. hundreds of

B. hundred of

C. three hundreds

D. three hundreds of

16. Lucy wrote a __________letter to her mother.

A. six hundred words

B. six-hundred words

C. six-hundred-word

D. six-hundred-words

17. Many people in the world speak English as ______ language.

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

18. What date is it today? It’s__________.

A. my birthday today.

B. a fine day

C. Saturday

D. September 29,2002

19. How often do you go to visit your grandparents?_________.

A. Two time a month

B. Twice a month

C. Two times month

D. A month twice

20. _________here today.

A. There are only ten of us

B. We are only ten

C. There are only ten us

D. There are only ten

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关集合名词用法的几个语法要点 ■family(家庭),team(队),class(班),audience(听众)等,其用法特点为:若视为整体,表示单数意义;若考虑其个体成员,表示复数意义。比较: This class consists of 45 pupils. 这个班由45个学生组成。 This class are reading English now. 这个班的学生在读英语。 ■cattle(牛,牲畜),people(人),police(警察)等,其用法特点为:只有单数形式, 但却表示复数意义,用作主语时谓语用复数;不与 a(n) 连用,但可与the连用(表示总括意义和特指): People will laugh at you. 人们会笑你的。 The police are looking for him. 警察在找他。 Many cattle were killed for this. 就因为这个原因宰了不少牲畜。 【注】表示牲畜的头数,用单位词 head(单复数同形):three head of cattle (3头牛),twenty (head of ) cattle (20头牛)。 ■goods(货物), clothes(衣服)等,其用法特点是:只有复数形式(当然也表示复数意义,用作主语时谓语也用复数),但通常不与数词连用: Such clothes are very expensive. 那样的衣服很贵。 To whom do these goods belong? 这些货是谁的? ■baggage / luggage(行李), clothing(衣服), furniture(家具), machinery(机器), poetry(诗), scenery(风景), jewelry(珠宝), equipment(设备)等, 其用法特点为:是不可数名词,只用单数形式,不用不定冠词(当然更不能用数词),没有复数形式: Our clothing protects us from [against] the cold. 我们的衣服可以御寒。 Have you checked all your baggage? 你所有行李都托运了吗? 【注】machinery, poetry, jewelry, scenery等相应的个体可数名词是 machine, poem, jewel, scene等。如:a poem / a piece of poetry(一首诗),many machines / much machinery / many pieces of machinery(许多机器)。 ■补充说明几个特殊的集合名词: ①hair(头发,毛发):指全部头发或毛发时,为集合名词(不可数);指几根头发或毛发时,为个体名词(可数):

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高考英语24个语法之数词

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⒉表示几十年代时。 如:“二十世纪八十年代”写成1980s或1980s,均读作nineteen eighties,指的是1980至1989年这十年间,需注意的是,年代用文字表示时则不可用-s形式。 如:Great changes took place in the l970s. History has entered the eighties. ⒊表示不确定数目时。 这时要在million,thousand,hundred 等词后加上-s并与of连用,表示大约多至“数以.…….计",但millions of等前不能再加基数词,却可加some,several等表示不确定数目的修饰语。如:Millions of other stars are even bigger and brighter than the sun. Some hundreds of new buildings have been put up here this year. ⒋在分数中,当基数词(表示分子)大于one时,序数词(表示分母)要用复数,两者之间用不用连字符号均可。如:Two thirds of the teachers in our school are women. She has spent four-fifths of her money. ⒌当基数词用作可数名词或用于某些固定词组中时,也要用复数。 如:How many sevens are there in forty-nine? They arrived by twos and three她们三三两两的来了。 3 数词和名词单数一起作定语,中间用连字符连接 如:a seven-year-old girl 一个七岁的女孩 a two-thousand-word article一篇2千字的文章 4 基数词和序数词的顺序问题 当基数词和序数词同时修饰一个名词时,序数词一般放在基数词前;但如果序数词充当描绘性修饰时,则放在基数词后。 如:He is one of the first five students.他是前五名的学生之一。 ★序数词 表示数目顺序的词叫序数词。序数词的构成规则,如下表:

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人民路153号153 Renmin Road 4+8 =12 Four plus eight is twelve 11-7=4 Eleven minus seven is four. 6×5=30 Six times five is thirty. 20÷5=4 twenty divided by five is four. A>B A is more than B. A<B A is less than B. A≈B A is approximately (近似地, 大约)equals to B. A≠B A is not equal to B. 2.约数表示法列表 含义英语表达例句 大于某数more than He has lived here for more than twenty years. over she is over fifty. or more There're thirty people or more in the meeting-room. 小于某数less than I have less than (not more than )fifty dollars. under Children under seven are not allowed to enter. below He would not sell it for below a hundred fifty dollars. or less The coat might cost him sixty dollars or less. 大约(某数)nearly She is nearly fifty now. almost Its almost three o'clock. up to Up to ten men can sleep in this tent. or He spent four or five days writing the article. or so The distance is twenty miles or so. about I visited that village about three years ago. some Their team has some four or five players. more or less The container can hold more or less twenty pounds of water. around/roun d Let's make it round/around eight o'clock. 3.不定数量词“多”的表示法列表

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