(完整版)中考英语数词的用法

(完整版)中考英语数词的用法
(完整版)中考英语数词的用法

中考英语数词的用法

基数词: 表示人或事物数量多少的词.

序数词: 表示人或事物的顺序的词.

一. 基数词.

1.基数词的读法.

1)1---12 : one two three four five six seven eight nine ten eleven twelve

2)13---19: 词尾加-teen :thirteen fourteen fifteen sixteen seventeen eighteen nineteen

3)20,30,40,50,60,70,80,90 : 逢十词尾加-ty :twenty thirty forty fifty sixty seventy eighty ninety

4)21----99: 在十位与个位之间加连字符构成.

21--- twenty-one 99---ninety-nine

5)101---999 :先说几百, 再加and ,再加末尾两位数或个位数.

101---one hundred and one 238----two hundred and thirty-eight

6)1000以上的数:先将数字从右往左数,每三位数用一个逗号隔开, 从右往左第一个逗号表示“千”读thousand 第二个逗号表示“百万”读million 第三个逗号表示“十亿”读billion

18,657,421---eighteen million ,six hundred and fifty-seven thousand ,four hundred and twenty-one.

二. 序数词

基数词变序数词

口诀: 基变序,有规律,词尾要加th .一二三,特殊记,词尾分别tdd(first second third )

八去t ,九去e,ve要用f替.ty变作tie,再加th莫忘记.

若遇几十几,只变个位就可以.

三. 数词的应用.

1.表编号.

结构:名词(首字母要大写) + 基数词= the +序数词+名词

Lesson One = the first lesson

注:有些编号,一般仅用第一种表达法。

Room 101 101号房间

2.序数词前一般加定冠词the 但序数词前与不定冠词a /an 连用时,表示“又一,再一”You’ve done it three times .Why not try ____fourth time ?

A.a

B.an

C.the

D./

3.数词前加every ,表示每……/每隔…… .

every ten days =every ninth day 每十天(每隔九天)

注:every +基数词+复数名词= every + (序数词-1) +单数名词

4.基数词的复数形式表示年代和年龄

1)表示年代: in the + 年份的复数在几世纪几十年代.

在十九世纪七十年代. _________________________.

2)表年龄: in one’s + 整十的复数表示在某人几十岁时

在他四十岁时: ___________________.

5.hundred / thousand /million /billion

1).若hundred / thousand /million /billion 前有基数词时,其后不加s,也不加of .若没有时,既加s 也要带of .

Every year _______ visitors come to China .

There are two _______ students in our school .

A.thousand

B.thousands

C.thousands of

D.thousand of

2).若其前有a few 、many、several 修饰时,通常用复数,后接of.

3).若名词前有the修饰时,用单数,后接of

Two ______the students in our school are from the countryside .

A.hundred

B. hundred of

C.hundreds of

D.hundreds

6.几个半的表达法:

基数词+ and + a half +名词复数= 基数词+名词(单数/复数) +and +a half two and a half hours = two hours and a half

7.时刻表达法:

1)整点: 基数词+ o’clock

2)几点几分:

A).直接读法: 先读小时,后读分钟

3:25 ---- three twenty-five

B).间接读法:

a)≤30分钟. 分钟+ past + 小时

3:25 ----twenty-five past three

b)>30分钟. ( 60-分钟)+ to + (小时数+1)

3:55 ----- five to four

c) 30 分钟= half 15分钟=a quarter 45分钟= three quarters 3:30 ---half past three 3:15----a quarter past three

3:45 ----a quarter to four

8.日期表达法:

结构: 1).月日,年(日用序数词,年用基数词)

注:年份的读法: 先读前两位数,再读后两位数. 读日时要加the.

1900---nineteen hundred 1807----eight and seven (eight o seven) 2008---two thousand eight

2007年3月21日.--- March the twenty-first ,two thousand and seven.

2).日月年(the +序数词+of +月, 年)

2007年3月21日---the twenty-first of March ,two thousand and seven.

9.分数词的表达法:

1).结构: a).分子用基数词,分母用序数词.

b).当分子大于1时,分母加复数.

3/4--- three fourths (three-fourths)

2).注意:

a).分数词的几种特殊形式.

1/3—one third = a third

1/4—one fourth = a quarter

1/2—one second = a half

3/4—three fourths = three quarters

b).分数词作主语时, 谓语动词根据分数词后面的名词来确定.

Two fifths of the milk ______(be ) drunk by Tom .

One third of the students _______(be )girls .

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?量词: 通常用来表示人、事物或动作的数量单位的词,叫做量词。 例如:a bag of (rice), a piece of (news), a cup of (tea) ?量词特点: 在英语中,有很多量词词组,例如:a group of,a flock of,a bunch of,a bundle of等等. 量词词组粗略地归纳了以下的特点,具体表现为: 特点一: 英语量词词组所表示的数或量,大致可归纳为四种类型,即定量、不定量、大量和少量。 1.表示定量的量词词组,譬如: a couple of(两个、一对) a couple of days, a couple of players, a couple of times; a cupful of(一满杯) a cupful of jelly, a cupful of water; a portion of(一份/客) a portion of duck, a portion of roast beef。 2.表示不定量的量词词组,譬如: a majority of(大多数/大半)

a majority of opinions, a majority of votes; an atom of(一点) an atom of food, an atom of truth; a spell of(一阵/一段时间) a spell of fine weather, a spell of coughing。 3.表示大量的量词词组,譬如: a flood of—a flood of ink(洋洋大篇), a flood of tears(泪如泉涌); a heap of—a heap of earth(一堆泥土), a heap of customers(许多顾客); a mountain of—a mountain of debts(债台高筑),a mountain of difficulties(困难重重)。 4.表示少量的量词词组,譬如: a drop of—a drop of fever(有点热度), a drop of dew(一点露水); a particle of—a particle of feeling(一丝感情), a particle of dust(一点灰尘); a shadow of—a shadow of doubt(一点怀疑), a shadow of freedom(一点自由)。

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