英语语法数词专题
数词用法专题
1.百位数和十位数之间，在英式英语中要用“and”连接，在美式英语中一般不用。
例：456：four hundred (and) fifty-six
2.
3.有关“零”的各种说法：
zero：一般说法，在温度或数学上使用；
nil/nothing：在运动比赛中使用；
love：在网球比赛中专用；
O（读音）：电话或数学用语；
cipher：书面语，指符号而不指数目（有时指温度）。
例：零下 10 度：ten degrees below zero
The result of the match was 5:0.（读作 five (goals to) nil）
They won 3:0.（读作 three (to) nothing）
Our team leads by 10:0 in the first tennis game.（读作 ten love）
Dial 110.
If you have no children, enter a cipher in the space on the form.
The thermometer fell below cipher yesterday.
4.在某些表示概数的习语中（如“成百上千”、“成千上万”等），基数词后要加“-s”。
例：thousands of students
millions of children
tens of thousands of people
5.hundred of，thousand of，million of 等被 a few，some，several，many 等修饰，表示不
确定数字时，用单复数形式均可。
例：a few thousand(s) of books
some thousand(s) of soldiers（单用：some thousands）
several hundred(s) of workers（单用：several hundred）
many million(s) of birds（单用：many millions）
6.表示“多少人组成一组，几个一起”时，基数词要用复数形式。
例：The students lined in fives.
She counts them in eights.
The guests came in twos.（相当于 two by two/two and two）
7.“第一名”、“第二名”可用 first，second 表示，并且可用复数形式。
例：几个第 1 名：several firsts
3 个第 2 名：three seconds
8.在“several/many/基数词 + dozen + 名词”结构中，dozen 使用单数形式。（当名词前有修饰
性成分时，dozen 和名词之间要用 of（不可省略），即“several/many/基数词 + dozen + of + 修饰词 + 名词”，另外，score 的用法和 dozen 相同。）
例：several/many/six dozen eggs
several/many/six dozen of white birds
several/many/six score eggs
several/many/six score of white birds
I bought several dozen/score these desks. (×)
I bought several dozen/score of these desks. (√)
9.“(some) dozens/scores of + 复数名词”结构表示“好几十，很多”。（some dozen/score (of)
+ …表示“大约 12/20 个...”）
例：(some) dozens/scores of children
几十个儿童（some 表示“一些”，对含义无影响）
some dozen/score (of) children
大约 12/20 个儿童（some 表示“大约”，对含义有影响）
10.“a dozen + 复数名词”和“a score of + 复数名词”也可表示“很多”。
例：I have been there a dozen times.
I have been there a score of times.
11.基数词可以表示书页、住所、房间、教室、邮政编码、电话号码等的编号。（电话号码通常以两
个数字读为一组，中间有个小停顿，但以三个数字读为一组的情况也属常见，尤其是当电话号码为六位数或六位数以上时。电话号码中两个重复的数字，常用 double。）
例：第 8 页：Page eight（P. 8）
第 7 行：Line seven（L. 7）
唐宁街 10 号：No. 10 Downing Street
第 301 房间：Room (No.) 301
第 4 教室：Classroom (No.) 4
邮政编码：223805
电话号码：（读作：double six o, two three two, double eight）
12.罗列几个并列的名词时，前面的若干个名词前用“不定冠词 + 序数词”结构，最后一个名词前
用“定冠词 + 序数词”结构。
例：The old man has four daughters. One is a nurse, a second is a teacher, a third is
a musician, and the fourth is a painter.
13.2 倍：twice (AmE: two times)，double，duple，twofold，as …again as；3 倍：3 times，
triple，treble，threefold；4 倍：quadruple，4 times，fourfold；5 倍：5 times，fivefold；
依此类推。（①double 可作 n/v/adj/adv。②double/twice/three times/four times/…等表示倍数时，要放在定冠词、形容词形物主代词或名词所有格之前。③treble可作 v/adj，通常可以和 triple 互换，但有时只能用 triple，如 the triple alliance。<2>。）
例：You have paid twice/two times the usual price.
You are twice/two times her/Jenny's age.
Four is the double of two.（double 作名词）
He doubled/trebled his income in 6 years.（double/treble 作动词）
It is double the distance.（double 作形容词）
The driver demanded double the usual fare.（double 作副词）
Duple quantity of iron is needed for this project.
The amount of alcohol in his blood was triple the legal maximum.
They have produced twofold/threefold as many washers as they did last year.
This river is as wider again as that one.
He earns treble my salary.（treble 作副词）
Treble salaries were paid.（treble 作形容词）
I asked for a treble (portion of wine).（treble 作名词）
20 is the quadruple of 5.（quadruple 作名词）
Sales have quadrupled in the last 5 years.（quadruple 作动词）
A quadruple alliance comes into being.（quadruple 作形容词）
This year we produced quadruple that of last year.（quadruple 作副词）
14.倍数比较的表示法：
1)X times as + adj/adv（原级）+ as ... <划线部分>)
例：My room is twice as long as hers.
My room is half as long as hers.（倍表示法）
My room is half as long again as hers.
= My room is one and a half times as long as hers.（倍表示法）
Jack runs 3 times as fast as Jim.
They have twice as many planes as we have. （此句中是 n，不是 adj/adv！）
2)X times + adj/adv（比较级）+ than …… <划线部分>)
例：My room is twice longer than hers. = My room is as long again as hers.
My room is half longer than hers.（倍表示法）
My room is one and a half times longer than hers.（倍表示法） Jack runs 3 times faster than Jim.
The cotton output is 20% greater than that of 2009.（此句中是 20%，不是倍数！）
3)X times + the width (length, breadth, level, value, size, velocity) of …
例：My room is twice the length of hers.
My room is half the length of hers.（倍表示法）
My room is one and a half times the length of hers.（倍表示法） The earth is 49 times the size of the moon.
15.倍数增减的表示法：
1)increase/exceed/speed up/step up/raise/rise/go up/grow/... + by + 百分数(X%)/倍
数(X)；（A 增加了 X% ‖ A 增加为原来的 X 倍）
例：Sales increased by 15%.
The production of TV sets in the fourth quarter increase by 3 times.
2) A be/multiply/increase/exceed/speed up/step up/raise/rise/go up/grow... + 数词
(X) + times/fold；（A 是/增加为原来的 X 倍）
例：Sales increased 3 times.
The production of notebooks computers has been increased sixfold over/as against/as compared with that of 2005.
3) A multiply X times & A be multiplied by + 数字；（A 增加为原来的 X 倍）
例：Sales have been multiplied by 4 times.
The production has multiplied 8 times.
4) A increase/exceed/speed up/step up/raise/rise/go up/grow/
decrease/drop/fall/weaken/shorten/reduce/step down/speed down/go down + by a
factor of + 百分数(X%)/数词(X)；（A 增加/减少/...为原来的 X 倍）
例：Sales have increased/decreased by a factor of 5.
The speed exceeded (the average value) by a factor of 4.
It raised by an (average) factor of 30%.
5) A decrease/drop/fall/weaken/shorten/reduce/step down/speed down/go down + by +
百分数(X%)/数词(X)/倍数(X)；（A 减少/下降/...了 X ‖ A 减少/下降/...为原来的1/X）
例：Sales have decreased by 5,000 RMB/3 times.
The price of rice was reduced by 15%.
6) A 黄色部分/绿色部分 to ...；（A 增加/减少到 ...）
例：Sales increased/decreased to 50 million.
The soldiers have increased to 1,000.
7) A be + 倍数(X) + upon/over B；（A 是 B 的 X 倍）
例：Sales was 3 times upon/over that of last year.
I am twice upon/over your age.
The number of college students for 2010 is 30 times over that for 1995.
8) A be + 倍数(X) + what 从句；（A 是 ... 的 X 倍）
例：Sales are 4 times what we had for the first quarter.
The population is (more than) 3 times what it was in 1985.
9) A be + 百分数(X%) + above/higher than B；（A 比 B 高 X%）
例：Sales are 40% above/higher than that of last month.
The export this month was 23% above/higher than that was achieved in May.
10)A be up + 倍数(X)；（A 增加为原来的 X 倍）
例：Sales (this month) was up 6 times.
His income this month was up 3 times.
The nation's grain output was up times.
11)A show/register + 百分数(X%) + increase/decrease（名词）；（A 增加/减少了 X%）
例：Sales in August registered/showed a 25% increase/decrease over March.
12)A be + 百分数(X%)/数字(X) + less than B；（A 比 B 少 X%）
例：Sales are 37% less than (that of) last month.
The steel output this year is 10,000 tons less than in 2001.
（注：by 常可省略，但 to 则不可省略）
16.5 feet square 与 5 square feet 的区别：
A table 5 feet square has an area of 25 square feet.
17.“减少一半”的表示法：
1)be half as many/much/long/fast/... as ...
2)twice thinner than ...
3)reduce/decrease/... by one half
4)be one half less
5)cut/break/split/... A in half/into halves
6)half the (usual) price/speed/...
18.概数的表示法：
1)“over/above/more than + 数字”或“数字 + odd”
2)below/under/less than + 数字
3)“about/nearly/some/toward(s)/more or less + 数字”或“数字 + or so”（注：“数
字 + more or less”和“more or less + 数字”等价）
4)其它零散表示法。（(51-52)<4>）
19.“每隔”和“每逢”的表示法：
1)“every + 基数词 + 复数名词”=“every + 序数词 + 单数名词”
例：every 5 days = every 5th day（每 5 天 = 每隔 4 天）
2)“每两天/每隔一天”的表示法：
every 2 days = every 2nd day = every other day
20.比例的表示法：（(52-53)<六>）
注：1 (person) in 10 = 1 person out of 10 = 1 in every 10 person
21.数学公式、小数和分数等的表示法：（(53-54)<七>）
22.长度、面积、重量和体积的表示法：（(54-55)<八>）
23.英美楼层的不同表示法：（(55-56)<九>）
1)floor 表示“楼层”时，指的是“第几层”（常与 on 连用）；而 story 表示“楼层”时，
指的是“层数”（此时等同于 storey，并常与基数词连用或参与构成复合词，不与 on 连用）。另外，storeyed 是形容词，意为“有...（层）楼的”，常参与构成复合词。
2) a 4-story house = a 4-storied house
24.币制的表示法：（(55-56)<十>）
25.年代、年月等的表示法：（<十一>）
26.年龄的表示法：
1)大概年龄：（<1）>）
2)“... 岁”：（<2）>）
3)“快 ... 岁”：（<3）>）
4)“已 ... 岁”：（<4）>）
5)“不满 ... 岁”：（<5）>）
6)其它年龄的表示法：be/come of age <成年>, be under age <未成年>, be of school age
<已到学龄>, be over age <超龄>, be (far) advanced in years <年迈>, attain the advanced age of < ... 岁的高龄>, long-lived/live to a great age <长寿>, live to
90 <活到 90 岁> 等
27.时刻的表示法：
1)用 ./. 后便不能再用 o'clock；
（例：at 7 o'clock . <×>）
2)./. 前用数字，不用文字表示时刻；
（例：8:15 a.m. <√>；a quarter past eight . <×>）
3)不说出钟点时不能用 ./.；
（例：tomorrow . <×>；tomorrow afternoon <√>）
4)./. 在标题、句子开头或时间表中用大写的 ./.；（电报用语为 A. 和 P.）
5)past（过）和 to（差）一般限制在 30 分钟内；
6)零点：zero hour(s), O hundred hours
28.用阿拉伯数字表示复数名词时，阿拉伯数字后加“s”或“'s”。
29.数词构成的惯用语：（(57-58)<4>）
30.数词的限定语：
1)表示“大约、左右”：about, some, around, round, or so, in the rough, in the
neighbourhood of, close to, more or less, round about, or thereabout(s), somewhere about
2)表示“恰好、整整”：exactly, clear, cool, just, sharp, flat, solid, good, whole,
neither more or less
3)表示“仅仅、只不过”：only, scarcely, barely, scant, no more than
4)表示“过剩、外加”：over, more, left, other, another
5)表示“接近”：near, close to, toward(s), nearly, almost
6)表示“少于、不足”：less, under, less than, below, off, short, within
7)表示“多于、以上”：over, past, odd, good, full, upwards of, no less than, more than,
all of
（注：or so, in the rough, left, over, flat 等一般要放在“数词 + 名词”之后；另外，对于 two hours, five months, three years 等表示整体概念时，形容词须放在它们的前面。）31.“基数词 + 名词”和“基数词 + 名词-ed”的区别：
它们均可参与构成复合形容词（中间均需加连字符）作前置定语，均不可置于名词后或作表语，但“基数词 + 名词”强调数量，而“基数词 + 名词-ed”则强调特点。
（注：“数词 + 名词 + 形容词”也是常用的复合形容词，其用法与上述基本相同。需要说明的是，当不使用连字符且数词 > 1 时，名词使用复数形式。）
32.half 的用法：（(60-61)<十二>）
33.a fall of snow ——英语量词表示法：（(62-63)<十三>）
初中英语语法--数词
数词 （一）分类：数词有基数词和序数词两种。可以作句子的主语、宾语、表语和定语。 1、基数词：表示数目的词叫基数词。 常用的基数词有：
[注]：(1)百位与十位之间要加and；百位为0的话，就加在百位和个位之间。 108→one hundred and eight, 146→one hundred and forty-six, 500→five hundred , 1001→one thousand and one, 1813→one thousand eight hundred and thirteen. 一千：1000→one(a)thousand, 一万：10,000→ten thousand, 十万：100,000→one hundred thousand , 百万：1,000,000→one million, 千万：10,000,000→ten million, 亿：100,000,000→one hundred million, (2)英语用千、百万等单位计数，大数字从右向左看, 每隔三位划一逗号，倒数第一个逗号之前要用thousand，倒数第二个逗号之前要用million，倒数第三的逗号之前要用billion 表示。 3，456，789 three million four hundred and fifty- six thousand seven hundred and eighty-nine 6，004，001 six million four thousand and one (3) hundred、 thousand、 million表示确切的数时，不加s。如：five hundred(五百)，加S时表示不确定的数，后面必须要有of，前面可以加上some, many, several等词，翻译为：“成…上…”。hundreds of(成百上千的)，thousands of(成千上万的), millions of(成百万的) 2、序数词：表示顺序的数词叫序数词。 ①英语的序数词基本变法： (1) 一般在基数词后加th,(2)-ve结尾的改为-fth,(3)-ty结尾的改为-tieth,(4) 熟记特殊词。
英语语法之冠词和数词
英语语法之冠词和数词 1.不定冠词a与an的用法 2.定冠词the的用法 3."零"冠词 4.基数词的用法 5.序数词的用法 一. 冠词的用法 冠词是虚词，放在名词之前，用来说明名词指的人或事物。冠词有两种。 a(an)叫不定冠词，the叫定冠词。a用在辅音之前，an用在元音之前。 1. 不定冠词的用法 (1) a和an均用在单数名词之前，表示某一类人或事物。例如： John is a student. Mary is an English teacher. (2) 指某一类人或事物中的任何一个。例如: A steel worker makes steel. Pass me an apple, please. (3) 指某人或某物，但不具体说明何人或何物。例如： A student wants to see you. A girl is waiting for you outside. (4) 表示“每一”的意思，相当于every。例如： Take the medicine three times a day. They go to see their parents once a week. 2. 定冠词用法
(1) 特指某（些）人或某（些）事物。例如： The book on the desk is an English dictionary. Beijing is the capital of China. (2) 指说话人和听话人都熟悉的人或事物。 例 如：Open the door, please. Jack is in th e library. (3) 上文提到过的人或事物。例如： Yesterday John’s father bought him a new bike. The bike cost him 200 yua n. (4) 表示世界上独一无二的事物。例如： The sun rises in the east and sets in the west. (5) 用在序数词和形容词最高级之前。 例 如：Shanghai is the biggest city in China. Jan uary is the first month of the year. (6) 用在某些形容词之前，表示某一类人或事物。 例如：The nurse is kind to the sick. We should take good care of the old. the old 老人the young 年轻人the rich 富人the poor 穷人 the sick 病人the dead 死人 (7) 用在某些专有名词之前和某些习惯用语中。例如： the Great Wall, the Summer palace, in the morning, in the open air等。 (8) 用在姓氏复数之前，表示“某某一家人”，“某某夫妇”。
初中英语语法之数词
初中英语语法-数词及练习 一、内容概述 表示数目和顺序的词叫数词。数词可分为基数词和序数词两类 二、重点知识归纳及讲解 (一）基数词 基数词用来表示数目，或者说表示数量的词叫基数词。最基本的基数词如下表所示。 1 one 11 eleven 100 a hundred 2 two 12 twelve 20 twenty 1000 a thousand 3 three 13 thirteen 30 thirty 1，000，000 a million 4 four 14 fourteen 40 forty 10，000，000 ten million 5 five 15 fifteen 50 fifty 100，000，000 a hundred million 6 six 16 sixteen 60 sixty 1，000，000，000 a billion 7 seven 17 seventeen 70 seventy 8 eight 18 eighteen 80 eighty 9 nine 19 nineteen 90 ninety 10 ten 说明： 1．13—19是由个位数加后缀-teen构成。注意其中13、15的拼写是thirteen和fifteen。2．20—90由个位数加后缀-ty构成，注意其中20—50的拼写分别是twenty, thirty, forty 和fifty;80的拼写是eighty。 3．其它非整十的两位数21—99是由整十位数加连字符“-”，再加个位数构成。如81 eighty-one。4．101—999的基数词先写百位数，后加and再写十位数和个位数.如691 six hundred and ninety-one。 5．1000以上的基数词先写千位数，后写百位数，再加and，最后写十位数和个位数。 如：5893 five thousand eight hundred and ninety-three。在基数词中只有表示“百”、“千”的单位词，没有单独表示“万”、“亿”的单位词，而是用thousand（千）和million（百万）来表达，其换算关系为：1万=10 thousand;1亿=100 million; 10亿=a thousand million=a billion。 7．多位数的读法： 1）1000以上的多位数，要使用计数间隔或逗号“，”。即从个位起，每隔三位加一个间隔或逗号。第一个间隔或逗号前是thousand（千），第二个间隔或逗号前是million（百万），第三个间隔或逗号前是a thousand million或a billion(十亿)。 2）每隔三位分段以后就都成了101—999。读的时候十位数（或个位数）的前面一般要加and。如：888，000，000读作：eight hundred and eighty-eight million。
高考英语语法专题复习 数 词
2008高考英语语法专题复习数词 高考重点要求： 1．掌握基数词、序数词、分数词、倍数、百分数、年月日、钟点、年龄、序号的基本用法。 2．掌握不定数量词、约数词的表达方法。 数词在各个题项中，单选、阅读、听力、写作中发挥着很强的作用，往往用以说明事实的精确性和可信性。数词是由两大部分构成的即基数词和序数词，而其他数字表示法如分数，小数等均由这两大部分的不同组合而构成。 （三）数词的用法： 1.英语中年月日、点钟、序数词、分数词、算式列表 示例英语表示法 2001．6．30 June 30,2001 30June,2001 30thJune, 2001 7：25 seven twenty-five twenty-five past even 12:54 twelve fifty four six to one 9:15 nine fifteen a quarter past nine 2:30 two thirty half past two 21:50 twenty-one fifty 9:50p.m. 第21 twenty-first
第123 one hundred and twenty-third 21 a half 52 2 two and two-fifths 20% 20 per cent 20 percent 第七路公共汽车 Bus Number Seven 第201房间 Room 201 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/round Let's make it round/around eight o'clock. 3.不定数量词“多”的表示法列表
英语语法(数词)
13,789,653→th i rt e e n m i l l i o n se v e n h u n d re d an d e i g h t y-n i n e th o u s an d si x h u n dr e d an d f i f ty-th re e B、基数词的基本用法 1. 表示钟表、时间 ①整点数：基数词+o'cl o c k，其中o'cl o c k可省略。如： 4:00→f o u r (o'cl o c k) 12:00→tw e l ve(o'cl o c k) ②半点数：钟点数+t h i r t y或者h al f+p a st+钟点数。如： 5:30 h al f p a st f i ve=f i ve t h i r ty不能说：th i r ty p a st f i ve或f i ve h al f) ③几点几分表示法： a、钟点数+分钟数 7:20→se ve n t we n ty b、分钟数在30分钟以内，使用介词p a s t表示“几点过几分”, 分钟数+p a st+钟点数 11:25→tw e n ty-f i v e p a s t e l e ve n(=e l e ve n tw e n t y-f i v e) c、分钟数在30分钟以外，用to表示“几点差几分”时，分钟 数放在介词前，60-分钟数+to+下一个钟点数 6:40→twe n t y to s e ve n(=si x f o r ty) 2. 可以用基数词，也可以用序数词，即：事物名词（不加冠词）+基 数词或th e+序数词+事物名词。如： L e s so n Twe l ve=th e T we l f th Le s so n第十二课 P a r t On e→th e Fi r s t P ar t第一部分 W o rl d W ar I=th e Fi rs t W o r d w a r第一次世界大战 如英语编号中数字较长，一般用基数词表示。如： R o o m506第五0六号房间 p a ge265= th e265th p a ge第二百六十五页 T e l e p h o n e N O.8297976电话号码8297976 3.表示货币 ①中国货币：基本单位y u an(元)，没有复数，符号是￥。如： 1元→1y u an或￥1 ②美国货币：基本单位do l l a r(美元)，复数是do l l a r s，符号是＄。 2美元→2do l l a r s或＄2 ③英国货币：基本单位po u n d(英镑)，复数是po u n d s，符号是￡。 3英镑→3p o u n ds或￡3 4.表示“年月日” 和汉语不同，英语中表示日期的顺序为：月-日-年（美式）或日-
初中英语语法4数词
初中英语语法4数词
数词 一、本周内容概述 表示数目和顺序的词叫数词。数词可分为基数词和序数词两类。 二、重点知识归纳及讲解 （一）基数词 基数词用来表示数目，或者说表示数量的词叫基数词。最基本的基数词如下表所示。 1 one 11 eleven 100 a hundred 2 two 12 twelv e 20 twen ty 1000 a thousand 3 thr ee 13 thirte en 30 thirt y 1，000，000 a million 4 fou r 14 fourt een 40 fort y 10，000，000 ten million 5 five 15 fiftee n 50 fifty 100，000，000 a hundred million 6 six 16 sixtee n 60 sixty 1，000，000，000 a billion 7 sev en 17 seventeen 70 seventy 8 eig ht 18 eighteen 80 eighty 9 nin 19 nineteen 90 ninety
e 10 ten 说明： 1．13—19是由个位数加后缀-teen构成。注意其中13、15的拼写是thirteen和fifteen。 2．20—90由个位数加后缀-ty构成，注意其中20—50的拼写分别是twenty, thirty, forty 和fifty;80的拼写是eighty。3．其它非整十的两位数21—99是由整十位数加连字符“-”，再加个位数构成。如：81 eighty-one。 4．101—999的基数词先写百位数，后加and再写十位数和个位数。如：691 six hundred and ninety-one。5．1000以上的基数词先写千位数，后写百位数，再加and，最后写十位数和个位数。 如：5893 five thousand eight hundred and ninety-three。在基数词中只有表示“百”、“千”的单位词，没有单独表示“万”、“亿”的单位词，而是用thousand（千）和million（百万）来表达，其换算关系为：1万=10 thousand;1亿=100 million; 10亿=a thousand million=a billion。 7．多位数的读法： 1）1000以上的多位数，要使用计数间隔或逗号“，”。即从个位起，每隔三位加一个间隔或逗号。第一个间隔或逗号前是thousand（千），第二个间隔或逗号前是million（百万），第三个间隔或逗号前是 a thousand million或 a billion(十亿)。 2）每隔三位分段以后就都成了101—999。读的时候十位数（或个位数）的前面一般要加and。如： 888，000，000读作：eight hundred and eighty-eight million。 （二）、基数词的用法
英语语法之数词
数词 一、整数的表示法和读法 1. 表示二十以上的十位数，要在个位数和十位数之间加连字符号。表示百位数，要在百位数和十位数之间（无十位数，则在百位数和个位数之间）加and。在美国英语中，and 往往省略。 e.g. I) 73 = seventy-three II) 809 = eight hundred (and) nine III) 269 = two hundred (and) sixty-nine 2. 书写千位数以上的阿拉伯数字，从后往前每隔三位用一分节号。 e.g. I) 1,000 = one/a thousand II) 100,000 = one/a hundred thousand III) 10,000 = ten thousand IV) 1,000,000 = one/a million 3. hundred, thousand, million, billion等词前面有具体数字或several修饰时，不加-s。 e.g. I) The magazine has seven million readers. II) The watch cost two hundred dollars. 不与数词或several连用，可以复数形式出现，表示“数以百计”、“成千上万”等。 e.g. I) Millions of people watched the 2004 Summer Olympics. II) Thousands and thousands of people visit the West Lake every year. III) They arrived in twos and threes. 他们三三两两地来了。 当表示数量的score, dozen等词前面有具体数词或several修饰时，不加-s。 e.g. I) We need several dozen eggs. II) Three score and ten people were present at the party. 70个人参加了这次派对。 同样，当它们不与数词或several连用时，可以复数形式出现。 e.g. I have been there scores of times. 二、分数的表示法和读法 1. 分数中的分子用基数词来表示，分母则用序数词来表示。分子大于1时，分母要用复数形式的序数词。 e.g. I) 1/3 = one third or a third II) 2/5 = two-fifths 2. 1/4和3/4的表示法如下： e.g. I) 1/4 = one quarter or a quarter or one fourth or a fourth II) 3/4 = three quarters or three-fourths 3. 1/2用one half或a half表示。 e.g. I) a half mile/ half a mile II) an hour and a half/ one and a half hours 一个半小时（注意两种表示法中hour 的单复数形式。） 三、小数和百分数的表示法和读法 1. 小数点(point)左边的数字按个、十、百……位读；右边的数字一般分开单个读出，也可以按个、十、百位读。 e.g.I) 14.397 –fourteen point three nine seven或fourteen point three hundred
初中英语语法知识—数词的图文解析(1)
一、选择题 1．---If your parents wanted to have a ______ child, would you agree? ---Of course. But they should make it in _____ yeas’ time. A．second; second B．two; two C．second; two D．two;second 2．—How do your students improve their English writing? —Well, about ______________ of the students like keeping diaries in English in our class. A．two fifth B．two fifths C．second five D．two five 3．﹣Welcome to Los Angeles．Have you ever been here? ﹣Sure. I visited this city three years ago so this is my _________ time here. A．first B．second C．third 4．---I am going to take this summer holiday in Taiwan. ---Oh, really? Taiwan is ______ a beautiful island that ______ people in Guangdong go to visit it every year. A．so; thousands B．so; thousands of C．such; many thousand D．such; thousands of 5．Every year there are about _______ people waiting for their trains back home in the railway station before Spring Festival comes. A．five thousand of B．five thousand C．thousand of D．five thousands of 6．— They will need __________ volunteers for 2014 International Horticulture Exposition (国际园艺博览会) in Qingdao. —Let’s go and join them. A．thousand of B．thousands of C．three thousand of D．three thousands 7．—How long is the bridge? —About ______ long. A．two thousand meter B．two thousand meters C．two thousands meter D．two thousands meters 8．I hear ____ foreign students will come to our school and they are in the ____ grade. A．eight, eighth B．eight, eight C．eighth, eighth 9．I’ve told him of that ______, but he always forget it. A．a hundred time B．hundred times C．hundred of times D．hundreds of times 10．This is our _______ school year, we are going to graduate in two months. A．third B．three C．the third 11．______of the students in our class ______ going to the summer camp in Beijing next week. A．Two-fifths, are B．Second-fifths, are C．Two-fifths, is D．Second-fifths, is 12．Nearly ________of the American children get money from their part-time job. A．two third B．two three C．two thirds D．second third
初中英语语法 数词
数词
一、本周内容概述 表示数目和顺序的词叫数词。数词可分为基数词和序数词两类。 二、重点知识归纳及讲解 （一）基数词 1．13—19是由个位数加后缀-teen构成。注意其中13、15的拼写是thirteen和fifteen。2．20—90由个位数加后缀-ty构成，注意其中20—50的拼写分别是twenty, thirty, forty 和fifty;80的拼写是eighty。 3．其它非整十的两位数21—99是由整十位数加连字符“-”，再加个位数构成。如： 81 eighty-one。 4．101—999的基数词先写百位数，后加and再写十位数和个位数。如： 691 six hundred and ninety-one。 5．1000以上的基数词先写千位数，后写百位数，再加and，最后写十位数和个位数。 如：5893 five thousand eight hundred and ninety-three。在基数词中只有表示“百”、“千”的单位词，没有单独表示“万”、“亿”的单位词，而是用thousand（千）和million（百万）来表达，其换算关系为：1万=10 thousand;1亿=100 million; 10亿=a thousand million=a billion。 7．多位数的读法： 1）1000以上的多位数，要使用计数间隔或逗号“，”。即从个位起，每隔三位加一个间隔或逗号。第一个间隔或逗号前是thousand（千），第二个间隔或逗号前是million（百万），第三个间隔或逗号前是a thousand million或a billion(十亿)。 2）每隔三位分段以后就都成了101—999。读的时候十位数（或个位数）的前面一般要加and。如：
英语语法数词专题
英语语法数词专题 Company Document number：WUUT-WUUY-WBBGB-BWYTT-1982GT
数词用法专题 1.百位数和十位数之间，在英式英语中要用“and”连接，在美式英语中一般不用。 例：456：four hundred (and) fifty-six 2. 3.有关“零”的各种说法： zero：一般说法，在温度或数学上使用； nil/nothing：在运动比赛中使用； love：在网球比赛中专用； O（读音）：电话或数学用语； cipher：书面语，指符号而不指数目（有时指温度）。 例：零下 10 度：ten degrees below zero The result of the match was 5:0.（读作 five (goals to) nil） They won 3:0.（读作 three (to) nothing） Our team leads by 10:0 in the first tennis game.（读作 ten love） Dial 110. If you have no children, enter a cipher in the space on the form. The thermometer fell below cipher yesterday. 4.在某些表示概数的习语中（如“成百上千”、“成千上万”等），基数词后要加“-s”。 例：thousands of students millions of children tens of thousands of people 5.hundred of，thousand of，million of 等被 a few，some，several，many 等修饰，表示不确定数 字时，用单复数形式均可。 例：a few thousand(s) of books some thousand(s) of soldiers（单用：some thousands） several hundred(s) of workers（单用：several hundred） many million(s) of birds（单用：many millions） 6.表示“多少人组成一组，几个一起”时，基数词要用复数形式。 例：The students lined in fives. She counts them in eights.
初中英语语法知识—数词的全集汇编及答案(2)
一、选择题 1．About ______ of the land ______ covered with trees and grass. A．three fifths; are B．three fifths ; is C．three fifth; are D．third fifths; is 2．In our city, about ________ of people can get _________ yuan a month. A．three quarters; two thousands B．three quarter; two thousand C．three quarters; two thousand D．three quarter; two thousands 3．—How much is the computer? —About three yuan. A．thousand B．thousands of C．thousands 4．—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 5．Christmas Day is on ______ of December. A．twenty-five B．twenty-fifth C．the twenty-fifth 6．Mount Tai is so famous that ___ people visit it every day. A．hundred of B．seven hundreds of C．hundreds of D hundreds 7．– Good news. My good friend has just moved to my flat. He lives on the floor. – We are neighbors. We live on the 19th floor. He lives one floor above us. A．twelve B．twelfth C．twenty D．twentieth 8．﹣Welcome to Los Angeles．Have you ever been here? ﹣Sure. I visited this city three years ago so this is my _________ time here. A．first B．second C．third 9．It is reported that people throw ______________ plastic bags along this street every day. A．three hundreds of B．three hundreds C．hundreds of D．hundred of 10．There are _______ people in the picture, and the ______ one from the left is me. A．eleven; five B．eleventh; fifth C．eleven; fifth 11．This is my ________ time visit to America. I have never been there before. A．one B．two C．first D．second 12．About _____________ of the students this year were born in the 1990s. A．three five B．three fifths C．third fifths D．third fifth 13．There are _______ people in the cinema. A．two hundred B．two hundreds C．two hundred of 14．______of the teachers in our school is 118, ______ 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 15．— How was your weekend? —Great ! It was my grandfather’s ______birthday. He was born _____. A．ninety, in the 1920 B．ninetieth, in the 1920s
初中英语语法数词详解(打印版)
数词 数词分基数词和序数词。基数词表示数目，序数词表示顺序。. 1．基数词 （1）基数词的具体形式如下： A．从1——10 one，two，three，four，five，six，seven，eight，nine，ten． B．从11——19 eleven，twelve，thirteen，fourteen，fifteen，sixteen，seventeen，eighteen，nineteen. 注：标记为蓝色的单词特殊记忆，其他的词都是由其个位数形式后添加后缀-teen 构成。 C．从21——99 整数几十中除twenty，thirty, forty，fifty，eighty为特殊形式外，sixty，seventy，ninety都是其个位数形式后添加后缀-ty构成。表示几十几时，在几十和个位基数词形式之间添加连字符“-” 21 twenty-one 76 seventy-six D．百位数 个数基数词形式加“hundred”，表示几百，在几十几与百位间加上and． 101 a hundred and one 320 three hundred and twenty 648 six hundred and forty-eight E．千位数以上 从数字的右端向左端数起，每三位数加一个逗号“，”。从右开始，第一个“，”前 的数字后添加thousand（千），第二个“，”前面的数字后添加million（百万），第三个“，”前的数字后添加billion（十亿）。然后一节一节分别表示，两个逗号之间最大的数为百位数形式。 2,648 two thousand six hundred and forty-eight 16,250,064 sixteen million two hundred and fifty thousand sixty-four 5,237,166,234 five billion，two hundred and thirty-seven million，one hundred and sixty-six thousand，two hundred and thirty-four（注：只有百跟十之间才有and） （2）基数词的用法 A．基数词在表示确切的数字时，不能使用百、千、百万、十亿的复数形式；但是，当基数词表示不确切数字，如成百、成千上万，三三两两时，基数词则以复数形式出现。 There are hundreds of people in the hall． 大厅里有数以百计的人。 Thousands and thousands of people come to visit the Museum of Qin Terra-Cotta Warriors and Horses every day． 每天有成千上万的人来参观秦兵马涌博物馆。
初中英语语法数词
初中英语语法数词 I基数词1.基数词的构成（1）1- 20one,two,three,four,five,six,seven,eight,nine,ten,eleven,twe lve,thirteen,fourteen,fifteen, sixteen, seventeen, eighteen, nineteen, twenty（2）21-99 先说“几十”，再说“几”，中间加连 字符。23→twenty-three,34→thirty-four,45→forty— five,56→fifty-six,67→sixty-sev en,78→seventy- eight,89→eighty-nine,91→ninety-one（3）101—999先说“几百”，再加and,再加末两位数或末位数；586→five hundred and eighty-six,803→eight hundred and three（4）l,000以上,先从右往左数，每三位数加一个“,”,第一个“,”前为thousand.第二个“,”前为million,第三个“,”前为billion（美式）或thousand ,million （英式）,然后一节一节地表示。1,001→one thousand and one9,785→nine thousand, seven hundred and eighty- five18,423→eighteen thousand, four hundred and twenty- three6,260,309→six million two hundred and sixty thousand three hundred and nine750,000,000,000→seven hundred and fifty, billion（美式） seven hundred and fifty thousand million（英式）
高中英语语法(数词篇)
(one first; two second; three third; five fifth; eight eighth; nine ninth; twelve twelfth; twenty twentieth ) 另外基数词one, two 还可变成次数once, twice II.庞大数词的英语读法：有一首歌诀，可以帮助我们迅速地用英语读出长数字。从右向左三逗开，一逗千，二逗百万，三逗就是十万万； 左右三位分开读，保你又快又欢乐。 ①“从右向左三逗开”，指从右向左把长数字母三位用逗号分开。如：10，000；225，430； 51.000，000，000 ②“一逗千，二逗百万，三逗就是十万万；”指从右向左的第一个逗号表示“千”（thousand）；第二逗号表示“百万”（million）；第三个逗号表示“十万万”（billion,即十亿）。 ③“左右三位分开读，保你又快又喜欢。”指读数时从左向右，每三位三位地按三位数的读法读，遇到有逗号时就分别加上该逗号所表示的那个英语单词。 III基数词的用法：
1.表示数量，后跟可数名词。当表示具体数字时，hundred, thousand, million,dozen,score等词前面有具体的数字two,three, four,thirteen....或some, several等词时，要用单数形式。如： two hundred books, sixteen thousand people,但是表示不确 切数字时， hundred, thousand, million等词后要加-s, 后跟 of,(加了-s表无数，of 要跟路），前面不跟具体的数字。 （一无二有；一有二无）
最新初中英语语法知识—数词的分类汇编(1)
一、选择题 1．—What do you think of the environment here? —Wonderful! of the land is covered with trees and grass. A．Two fifths B．Two fifth C．Second fifths D．Second fifth 2．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 3．--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 4．—When did you start to collect stamps? —I got my ______ stamp when I was ______ years old. A．one, seven B．one, seventh C．first, seventh D．first, seven 5．_______ of the teachers in our school _________women teachers. A．Two thirds,are B．Third Second,is C．Two thirds,is 6．— They will need __________ volunteers for 2014 International Horticulture Exposition (国际园艺博览会) in Qingdao. —Let’s go and join them. A．thousand of B．thousands of C．three thousand of D．three thousands 7．Next Friday is my daughter’s birthday. So I will buy her a cake with candles. A．five; fifth B．twelfth; twelve C．nineth; nine 8．So far， _______ of the students in our class _______ seen the film. A．three quarters; has B．two fifths; have C．three quarter; has D．two fifth; have 9．I hear ____ foreign students will come to our school and they are in the ____ grade. A．eight, eighth B．eight, eight C．eighth, eighth 10．I’ve told him of that ______, but he always forget it. A．a hundred time B．hundred times C．hundred of times D．hundreds of times 11．— How was your weekend? —Great ! It was my grandfather’s ______birthday. He was born _____. A．ninety, in the 1920 B．ninetieth, in the 1920s C．the ninetieth, on the 1920s D．nintieth, on the 1920 12．About _____________ of the students this year were born in the 1990s.