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初中英语数词知识点和练习

初中英语数词知识点和练习
初中英语数词知识点和练习

数词

1.什么叫做数词

表示数目多少或顺序多少的词叫数词,数词分为基数词和序数词。表示数目多少的数词叫基数词;表示顺序的数词叫序数词。

A.基数词的构成

1)1-12有各自独立的形式。

One,two, three ,four ,five ,six ,seven ,eight ,nine ,ten ,eleven ,twelve

2)13-19都是相对应3-9加上teen构成,thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen,

3)20-90都以-ty结尾,特殊拼写的有

<

twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety

4)21-99,整数十位数+各位数,中间有

“-”。

5)百位数,由百位数+and+两位数组成。

注:1、1000以上几个的词,每三位数加一个逗号,第一个逗号前的数为thousand,第二个逗号前的数为million(百万), 第三个逗号前的数为billion(十亿),第四个逗号前的数为trillion(万亿)

888,888,888,888

eight hundred and eighty-eight billion, eight hundred and eighty-eight million, eight hundred and eighty-eight thousand, eight hundred and eighty-eight

2、基数词常与名词构成的合成词在句中作定语,中间要用连字符“_”,这个名词只用单数形式.

/

a two hundred –word report

a seven-day holiday

a 3 –year –old girl

3. 基数词的用法

1、表示一个具体数字时,hundred, thousand,

million,billion一律不用复数;在表示一个不

确定数字时则用复数。例如:

1) Our country has a population of 1,300 million

people.

2) There are three thousand students in our

school.

3) After the war, thousands of people became

homeless.

4) Maize is the most important food crop for

millions of people in the world.

2、在一些表示“一排”或“一组”的词组里;

如:They arrived in twos and threes.

|

他们三三两两的到达了。

3、表示“……十”的数词的复

数形式可用来表示“几十岁”

或年代,例如:

1)He is in his early thirties.

2)He died still in his forties.

3)This took place in 1930s.

4、表示时刻用基数词。例如:

We get up at six.

The workers begin work at eight.

(1)表示“几点过几分”,用介词past,但须在半小时以内。例如:ten past ten,

a quarter past nine,

half past twelve

(2)表示“几点差几分”用介词to, 但分数须在半小时以上。例如:twenty to nine,

five to eight,

a quarter to ten

表示“几点几分”还可直接用基数词。例如:

seven fifteen,

eleven thirty,

nine twenty

注意下列习惯表达方式:

half an hour half a kilo

one hour and a half= one and a half hours

two and a half kilos = two kilos and a half

one or two days = one day or two

eighty meters long

one thousand miles away

five meters deep ( wide/ tall/ high/long)

five meters in depth / width/ height/ length

B. 序数词的构成

1)1-3分别为first,second,third 。

2)4-19都是在后面加上th,特殊的有

fifth, eighth, ninth,twelfth。

3)20-90把y变成ie然后加th,如twentieth。

4)21-99的序数词变后面的个位数。

"

序数词可以用缩写,如1st, 2nd, 3rd ,4th…

序数词的用法

(1)序数词主要用作定语,前面要加定冠词,例如:

The first truck is carrying a food baskets.

John lives on the fifteenth floor.

(2)序数词有时前面可加不定冠词来表示“再一”,“又一”这样的意思,例如:

We'll have to do it a second time.

Shall I ask him a third time

When I sat down,a fourth

man rose to speak.

{

(3)表示年,月,日时,年用基数词表示,日用序数词表示。例如:

1949年十月一日读作:

October (the) first, nineteen

forty-nine

2004年九月十日读作:

September (the) tenth, two thousand and four

(4)表示分数时,分子用基数词表示,分母用序数词表示。分子大于1时,分母加-s。例如:

1/4 one-fourth;

^

2/3 two-thirds;

1/2 a(one)half;

1/4 1(one)quarter;

3/4 three-quarters;

*76/92 seventy-six over ninety-two

(5)序数词也可以用作副词,

When did you first see him

Which horse came in first

^

(6)基数词也能表示顺序,如书刊的页的数目,住所、房间、教室、电话号码等等。Page Eight, Room 304,Class Seven,

7)倍数表示法

主语+谓语+倍数(或分数)+ as + adj. + as

I have three times as many as you.

我有你三倍那么多。

(8) 在…世纪:

in the twenty-first century

in the nineteenth century

(

1. About ________ students in our class can describe that place in English.

A. three-fifths

B. three-fifth

C. third-five

D. third-fifths

答案:A。该题考查的是分数的表示法。分子用基数词表示,分母用序数词表示。分子大

于1时,分母应加-s,因此应选A。

2. Nine _______ pounds a week That’s

very good.

A. hundred of

B. hundreds of

C. hundreds

D. hundred

;

答案:D。该题考查的是数词的用法。Nine hundred是一个具体的数量,这是数词不能用复数形式,后面也不能加of。所以应选D。

一、房间、书刊、汽车、电话等号码

1.房间

Room 106 = Room one o six 第106号房间

2.书刊

Part 2 = part two (the second part) 第二部分Lesson Ten = the tenth lesson 第十课

Page 127 = page one two seven 第127页

·

Chapter Four = the fourth chapter 第四章

Section Twenty-one =the twenty-first section 第二十一节

3.Bus 26/ the No. 26 bus 汽车26 路车

4.电话

4729646 =four seven two nine six four six

2822886 =two eight double two double eight six

二、年、月、日、星期、钟点表示方法

1.年前面用介词in

(在) 1961年(in) 1961 读作(in) nineteen sixty-one

(在) 1800年(in) 1800 读作(in) eighteen hundred

(在) 1909年(in) 1909 读作(in) nineteen and nine

(在) 20世纪90年代(in) the 1990’s 读作(in) the nineteen nineties

(在) 2000年(in) 2000 读作(in) two thousand

(在) 2001年(in) 2001 读作(in) twenty and o one

2.月前面用介词in,月份头一个字母须大写,

后附有缩写形式

(

(in) January Jan. (在)一月

(in) February Feb. (在)二月

(in) March Mar. (在)三月

(in)April Apr。(在)四月

(in)May May (在)五月

(in)June June (在)六月

(in)July July (在)七月

(in)August Aug. (在)八月

;

(in)September Sept. (在)九月

(in)October Oct. (在)十月

(In)November Nov. (在)十一月

(In) December Dec. (在)十二月

3.日前面用介词on,用序数词(前面加the)

表示“某日”

On the first 一日on the eighth 八日

a)某个节日前用on

(on) the first of January [或(on) January (the) first] 元旦(一月一日)

(on) the twenty-fifth of December --- Christmas Day[或(on) December (the) twenty-fifth]

十二月二十五日圣诞节

b)某年、某月前用in

in October,1965(读作in October, nineteen sixty-five)1965 年10 月

c)某年、某月、某日前用on

on October 29,1990读作on October the twenty-ninth, nineteen ninety)

on October 1,1949(读作on October the first, nineteen forty-nine)

4.星期前面用介词on,星期头一个字母要大写

On Monday(在)星期一,On Tuesday (在)星期二,On Wednesday (在)星期三

On Thursday(在)星期四, On Friday(在)星期五,On Saturday(在)星期六,On Sunday(在)星期日

5.钟点通常前面用介词at

David gets up at six o'clock in the morning.

戴维早晨六点起床。

6.“几点几分”的表示方法

`

1)用介词past或after表示“几点过几分”,但

分钟须在半小时内(包括半小时).

Now it is five past ten. 现在是七点过五分。

Now it is a quarter past two. 现在是二点一刻。

Now it is half past ten. 现在是十点半。

Now it is a few minutes after two. 现在是两点过几分。

2)用介词to表示“几点差几分”,但分钟必须在

半小时以上(不包括半小时)。如:

|

six to ten差六分十点

A quarter to Nine 差一刻九点

Twenty one to eleven 差二十八分十一点

3)也可以直接读时间

9:25 读作nine twenty-five

12:30 读作twelve thirty

8:30 . = eight thirty .上午八点三十分

the 4:15 . flight= the four fifteen . flight下午四点十五分航班

(

7.表示“时间的一定点”用at

at noon 在中午

at daybreak/ at dawn 在天刚亮的时候

at midnight 在半夜

8.表示“特定的时,日”用on

On time 准时

On the morning of the tenth 在十日早上

}

on the evening of Saturday 在星期六的晚上

9.表示不定的某日白天、上午、下午、晚等用“in”,但night则必须用“at”

In the daytime 在白天

In the morning 在早上

At night 在夜里

2.小数词(decimal fractional)

小数点读作ponit,其后的数词分开来一个一个地读,0可读作zero(或nought),也可读作[ou]。如

---o [ou] point two; nought (zero) point two

---o [ou] point o [ou] three;nought (zero) point nought (zero) three

---one point one nine

---one three point four seven o [ou]/

thirteen point four seven o [ou]

3.百分数

读百分数时,只要在基数词或小数词之后加上percent即可。如:

25%----twenty-five per cent

8%----eight per cent

?

%----o [ou] point five percent

%----nought/zero point one six per cent

四、数量增加的表示及译法

1.increase (rise, grow, go up…) by

a.这条新生产线使效率提高百分之二十。

The new production-line increases efficiency by 20 per cent.

b.人口增加了十万,共为三千万。

The population has increased by 100, 000 to30,000,000

c.&

d.与去年相比,产量增长五倍。

Compared with last year, the output goesup 5 times.

d.1985年以来电视产量增加了6倍

The production of TV sets has been increased by 6 times since 1985.

2.double (twice), n times 表示倍数的增加

①double (twice) …为……两倍,增加一倍,翻一番

②n times…为…… n倍,增加n-1倍

a.目前的产量是过去的两倍。

·

The production is now double what it was.

b.1999年产量翻了一番。

In 1999, the production doubled.

c.罗伯特驾车驶过从纽约到休斯顿两倍那么远的距离。

Robert drove twice the distance from New York to Huston.

3.用…more (higher, better…) than…表示

数量的增加

a.这所学校曾经只有男学生,而现在这所学校既

,

有男学生也有女学生,女生人数超过15%。

The school used to have boys only, but it

now has both boys and girls with the

number of girls more than15 per cent.

b.我国现在的教育水平已是解放前的几百倍。(或现在我国的教育水平比解放前提高

了几百倍

The level of our national education is hundreds of times higher now than before liberation.

c.太阳的大小是地球的几千倍(或:太阳比地球大几千倍。)

The sun is thousands of times larger than the earth.

~

4.用as much(many, long, fast…) as…表示

数量的增加

6 times as much as…六倍那么多,多五倍

half as long as…一半那么长

30%as heavy as…百分之三十那么重

one fourth as great as…四分之一那么大

a.这座桥长是那座桥的二倍。

,

This bridge is twice as long as that one.

b.The power of this engine is three fourths as great as the power of that one.

c.这块大石头的重量几乎是那块小的十倍

The big stone is nearly 10 times as heavy as the small one.

五、数量减少的表示及译法

reduce (fall, drop, cut, shorten )…

reduce to 10%降到10%,减少90%

reduce by 20%减少20%(只有原来的80%

fall by 15%下降15%

drop by 30%下降30%

cut (cost) 26%降低(成本)26%

shorten…4 times 使……缩短为原来四分之一,缩短四分之三

n times less…是……的n分之一

twice thinner…厚度只及……一半

①自1979从年以来这个地区的出生率下降了40%。

"

The birth rate in this area has dropped by 40%since 1979.

②月球上的重力是地球上的六分之一。

The force of gravity on the moon is six times less powerful than that on the earth.

③大桥使两座城市间距缩短为原来的六分之一。

The bridge shortens the distance betweenthe two cities 6 times.

六、大约数的表示方法

(1)用ten、dozen、score、hundred、thousand 、million 等数词的复数后加of 短语来表示几十、几百、上千、成千上万等大约数概念。如:

a.The little boy buys dozens of pencils every term.

b.'

c.Thousands of people died in the earthquake.

d.Every year tens of thousands of people go to work in Guangdong Provinc

e.

(2)用less than、under、below、almost、nearly、up to 等来表示小于或接近某数目。如:He is good at English, so he can finish the paper in less than two hours.

(3)用more than、over、above、beyond、or more等来表示超过或多于某个数目。如:Peking University has a history of more than 100 years.

(4)用or、or so、about、around、some、more or less 等表示在某一数目左右。如:About 50 people were present at that time.

(5)用to、from … to…、between …and 表示介于两数词。如:

His salary rises from 20 dollars a week to 35 dollars a week.

(6)注意事项:dozen、score、hundred、thousand、million 作数词表示确切数量时,不用复数。如:three score, five dozen, seven million 等。

实战演练

1. It is said that SARS has killed more than ________ people worldwide.

A. three hundreds

B. three hundreds’

C. three hundred’s

D. three hundred

2. ---How many workers are there in your factory

---There are two __________.

$

A. hundreds

B. hundred

C. hundred of

D. hundreds of

3. ---Which is the smallest number of the four

---_______________.

A. Two-thirds

B. A half

C. A quarter

D. Three-fourths

4. ---What do you think of a war, Li Ming

---I’ve no idea. But it’s a fact that _______

people had to leave their hometown

during the War on Iraq.

A. three thousands

B. thousand of

C. thousands of

D. several thousands

5. We all think that the _______ century will

bring us more hopes.

A. twenty-first

B. twentieth-first

C. twenty-one

D. twentieth-one

6. ---Can you write the number eighty-five thousand, six hundred and twenty-six

---Yes, it is __________.

A. 856620

B. 85626

C. 58662

D. 58626

7. When was the PRC founded It was founded on _________.

A. July 1, 1921

B. October 1, 1949

C. August 1, 1927

D. May 1, 1922

8. I was 8 years old when my father was 31.

This year my father is twice my age. How

old am I

A. 21

B. 22

C. 23

D. 24

9. _______ Chinese are looking for ways to

learn English well before Beijing 2008

Olympics.

A. Thousand

B. Thousands

C. Thousand of

D. Thousands of

10. Both of the two rulers are broken. I want

to buy a _______one.

ur A. three B. third C. forth D. /

初中英语数词专项

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a/an 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

新初中英语语法知识—数词的知识点训练(1)

一、选择题 1.—How long is the bridge? —About ______ long. A.two thousand meter B.two thousand meters C.two thousands meter D.two thousands meters 2.About _____________ of the students this year were born in the 1990s. A.three five B.three fifths C.third fifths D.third fifth 3.The __ Winter Olympics will be held in Pyeongchang(平昌),South Korea on Feb. ____, 2018. A.twenty-three; nine B.twentieth- three; nineth C.twenty-third; ninth D.twentieth-three; ninth 4.Two-child policy has been carried out. Most parents are planning to have their child. A.one B.two C.first D.second 5.—How much is the computer? —About three yuan. A.thousand B.thousands of C.thousands 6.—Zhapo has a really beautiful beach, doesn't it? —Yes, ________ travelers like to come here for a visit. A.thousands of B.thousand of C.thousand D.three thousands 7.——What should we do now, Mr.Li? ——Please turn to Page_____and look at the_____picture. A.Twelfth;fifth B.Twelve; fifth C.Twelve;five D.Twelfth;five 8.--Many young people came to Zhongshan in ______.When did he come to Shenzhen? ---When he is an ______ boy,he came here with his parents. A.1980s; eight years old B.1980s; eight-year-old C.the 1980s; eight-year-old D.the 1980s; eight-years-old 9.This is my ________ time visit to America. I have never been there before. A.one B.two C.first D.second 10.Harry’s mom looks young and beautiful. It’s hard to imagine she is already _________ her _________. A.in; fifty B.in; fifties C.on; fifties D.in; fiftieth 11.Leonardo was born in ________ in Los Angeles. Last year, he won his ________ Oscar in the 88th Academy Awards (奥斯卡奖). A.1980;first B.the 1980s;the first C.1980s;first D.the 1980s;first 12.Nearly ________of the American children get money from their part-time job.

【英语】初中英语数词专题训练答案

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目录 一.名词()二.形容词()三.代词()四.数词()五.冠词()六.动词动词语态时态()动词不定式()七.副词()八.介词()九.连词()十.比较级和最高级()十一.定语从句()十二.主谓一致()十三.状语从句()十四.虚拟语气()十五.倒装句()十六.独立主格()十七.其他重点语法()

初中英语语法专项练习一——名词 1 ( ) 1 She was very happy. She in the maths test. A. makes a few mistake B. made a few mistakes C. made few mistakes D. makes few mistake ( ) 2 We need some more____. Can you go and get some, please? A. potato B. potatos C. potatoes D. potatoe ( ) 3 _____are____for cutting things. A. Knife/used B. Knives/used C. Knife/using D. Knives/using ( ) 4 What big____ the tiger has! A. tooth B. teeth C. tooths D. toothes ( ) 5 Please remember to give the horse some tree___. A. leafs B. leaves C. leaf D. leave ( ) 6 -Can we have some ___? -Yes, please. A. banana B. oranges C.apple D. pear ( ) 7 On the table there are five____. A. tomatos B. piece of tomatoes C. tomatoes D. tomato 2 ( ) 1 They got much ___ from those new books. A. ideas B. photos C. information D. stories ( ) 2 He gave us____ on how to keep fit. A. some advices B. some advice C. an advice D. a advice ( ) 3 When we saw his face, we knew___ was bad. A. some news B. a news C. the news P. news ( ) 4 What___ lovely weather it is! A. / B. the C. an D. a 3 ( ) 1 -Would you like___tea? -No, thanks. I have drunk two____. A. any, bottles of orange B. some, bottles of orange C. many, bottles of oranges D. few, bottle of oranges ( ) 2 He is hungry. Give him ___ to eat. A. two breads B. two piece of bread C. two pieces of bread D. two pieces of breads ( ) 3 It really took him:___ to draw the nice horse. A. sometimes B. hour C. long time D. some time ( ) 4 I would like to have___. A. two glasses of milk B. two glass of milk I C. two glasses of milks D. two glass of milks ( ) 5 Can you give me ____? A. a tea B. some cup of tea C. a cup tea D. a cup of tea ( ) 6 Please give me ___ paper. A. one B. a piece C. a D. a piece of ( ) 7 John bought___for himself yesterday. A. two pairs of shoes B. two pair of shoe C. two pair of shoes D. two pairs shoes 4

英语中考英语数词知识点总结及经典习题(含答案)

外研版英语中考英语数词知识点总结及经典习题(含答案) 一、初中英语数词 1.It's never too old to learn. Karl Marx began to learn English in his ________. A. fifties B. fiftieth C. fifty D. the fiftieth 【答案】 A 【解析】【分析】句意:活到老,学到老。卡尔马克思在他五十多岁时开始学习英语。 in one's +整十数字的复数形式表示在某人……岁时,固定搭配,fifty,基数词,复数是fifties,所以,在他五十多岁时是in his fifties,故答案为A。 【点评】考查数词的用法及固定搭配。在某人五十多岁时是in one's fifties。 2.—How old is your daughter? — ______. We had a special party for her ______ birthday yesterday. A. Nine; nine B. Nine; ninth C. Ninth; ninth D. Ninth; nine 【答案】 B 【解析】【分析】句意:——你的女儿多大了?——九岁,昨天我们给她过了一个特殊的九岁的生日聚会。第一空说明年龄,应使用基数词,第二空说明的是第几个生日,使用序数词,故答案是B。 【点评】考查数词,注意基数词和序数词的用法。 3.—What day is the ______ day of the week? —It's Friday. A. fifth B. five C. six D. sixth 【答案】 D 【解析】【分析】句意:——一周的第六天是星期几?——星期五。A.第五;B.五;C.六; D.第六。星期五是一周的第六天,因此使用sixth,故答案是B。 【点评】考查序数词,追序数词在具体语境中的运用。 4.My family lives on ________________ floor of the building. A. twelve B. the twelfth C. twelfth D. the twelve 【答案】 B 【解析】【分析】句意:我家住在这栋楼的第20层。表示第几层,用the+序数词+floor,固定搭配,twelve,12,基数词;twelfth,第12,序数词,故选B。 【点评】考查序数词用法,注意平时识记the+序数词+floor。 5.There are ________________ months in a year. My birthday is in the ________________ month. A. twelve; twelve B. twelfth; twelfth C. twelve; twelfth D. twelfth; twelve 【答案】 C 【解析】【分析】句意:一年有12个月,我的生日在第12个月。名词复数months前是

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