2024新版英語13.序數(shù)詞

二、序數(shù)詞序數(shù)詞表示排列的順序，簡單說就是第一、第二、第三。它的縮寫形式為數(shù)詞加數(shù)詞的最后兩個字母，如：first—1st;second—2nd;third—3rd;thirty-first一31st。1.基數(shù)詞變?yōu)樾驍?shù)詞的規(guī)則1)第1至第19—般是在基數(shù)詞后加th，如six-sixth；但變化特殊的有：one—first,two—second,three—third,eight—eighth,nine—ninth,five-fifth,twelve—twelfth。2）逢十的twenty,thirty...ninety,分別改y為iethtwenty—twentieth,ninety—ninetieth

3）表示第幾十幾或第幾百幾十幾，只需將個位數(shù)改為序數(shù)詞數(shù)字基數(shù)詞序數(shù)詞56fifty-sixfifty-sixth631sixhundredandthirty-onesixhundredandthirty-first2.序數(shù)詞與冠詞1）序數(shù)詞前一般要加定冠詞the。It'sthethirdtimeI'vebeenhere.這是我第三次來這里。MybirthdayisonthethirdofMay.我的生日在5月3日2）表示在原有的基礎(chǔ)上增加，即“又一，再一”時，用不定冠詞。ShallIaskherathirdtime?我還要問她一次嗎？3）下列4種情況不用冠詞①序數(shù)詞前已有物主代詞或名詞所有格時，不能再用冠詞ThisisTom'ssecondvisittoChina.這是湯姆第二次訪問中國。②表示比賽或考試的名詞時，通常省略定冠詞Hewas（the）secondintheEnglishexam.在這次英語考試中他得了第二名。③序數(shù)詞被用作副詞時不用冠詞lhavetofinishmyhomeworkfirst.我得先把作業(yè)完成好。④在某些習(xí)語中不用冠詞atfirst起初firstofall首先atfirstsight乍一看學(xué)習(xí)小貼士：★其實基數(shù)詞變序數(shù)詞并不難，只要我們記住一些規(guī)律或口訣，如：123全要變，first,second,third；剩下要加th,不過8加h,9去e;ve結(jié)尾變f(th);ty結(jié)尾變tie(th);若你要數(shù)到20以上，只需變化個位數(shù)?！镉行?shù)字在變化時易混淆，—定要牢記這些特別容易混淆的詞。four4

fourteen14

nine9

nineteen19forty40

fourth第四ninety90

ninth第九三、其他會用到數(shù)字的地方1.數(shù)學(xué)領(lǐng)域中的數(shù)字1）分?jǐn)?shù)1/3one-third2/3two-thirds3/5three-fifths分?jǐn)?shù)的表示方法其實也很簡單，分子是基數(shù)詞，而分母是序數(shù)詞。而且，當(dāng)分子是1時，分母就是序數(shù)詞；而當(dāng)分子大于1時，分母就要變成了序數(shù)詞的復(fù)數(shù)，如：3/10—three-tenths。2）小數(shù)當(dāng)我們遇到有小數(shù)點的數(shù)字時，只要把數(shù)字用基數(shù)詞的方式讀出，遇到小數(shù)點時加入單詞“point"即可，如：3.14(threepointonefour)0.15(zeropointonefive)8.02(eightpointzerotwo)3）百分?jǐn)?shù)這里要注意的是，百分?jǐn)?shù)中最重要的是要讀出百分號“percent”。5%fivepercent50%fifty

percentThirtypercentofthestudentsaregirls.學(xué)生中30%是女生。學(xué)習(xí)小貼士：百分比中無論多少，percent都不用復(fù)數(shù)哦！2.生活中常見數(shù)字1）溫度我們一般講攝氏度：...°C=...degree（s）centigrade10°C(tendegreescentigrade)-1°C(onedegreecentigradebelowzero)Thehightemperatureis20degreescentigrade,andthelowtemperatureis12degreescentigrade.最高氣溫20攝氏度，最低氣溫12攝氏度。2）價格人民帀

yuan幣RMBthree

yuan

三元ten

yuan

十元美元dollar/英鎊poundoneRMB/

yuan

—元/

onedollar—美元/

onepound—英鎊twoRMB/yuan兩元/

twodollars兩美元/

twopounds兩英鎊學(xué)習(xí)小貼士：★yuan沒有復(fù)數(shù)，而美元dollar和英鎊pound都有?！飭杻r格時一般用Howmuch...?—Howmuchisthehat?—這頂帽子多少錢？—20yuan.—20元。★形容一樣?xùn)|西價值多少，有時也用cost。Thescarfcosts50yuan.這條圍巾50元。3）門牌號302室Room30212號No.122單元Unit23號樓BuildingNo.3南京路NanjingRoad徐匯區(qū)XuhuiDistrict用英語表達(dá)地址時和中文的表達(dá)習(xí)慣是不一樣的，小的地址在前，大的地址在后：Room201,No.33,GuilinRoad,XuhuiDistrict徐匯區(qū)桂林路33號201室4）公共汽車號IwilltakeaNo.17bustothepark.我將坐17路汽車去公園。5）電話號碼Mytelephonenumberis54923402.我的電話號碼是54923402。6）年、月、日的表達(dá)①年a.—般情況下，將表示年份的四個數(shù)字按前后分為兩組，讀的時候先讀前兩位，再讀后兩位，每一組的數(shù)字都按基數(shù)詞來讀。1978——nineteenseventy-eight1998——nineteenninety-eightb.如果前兩個數(shù)字為非“零"數(shù)字，后兩位數(shù)分別為“零"，則先讀出前兩位數(shù)，然后將后面的兩個“零"讀為hundred。1800——eighteenhundredc.第三個數(shù)字為“零"（其他數(shù)字不是“零"）的年份的讀法應(yīng)當(dāng)將該“零”讀為O。例如：1806一eighteenosixd.關(guān)于千年的一些讀法。2000年讀作twothousand2008——twothousanandeight/twentyoeight1008——onethousandandeight/tenoeight2012——twentytwelve/twothousandandtwelve②月月份縮寫月份縮寫—月JanuaryJan.二月FebruaryFeb.三月MarchMar.四月AprilApr.五月MayMay六月JuneJun.七月JulyJul.八月AugustAug.九月SeptemberSept./Sep.十月OctoberOct.十一月NovemberNov.十二月DecemberDec.學(xué)習(xí)小貼士：★月份首字母必須大寫：January,February...★如果月份要表示上旬、中旬和下旬則可用：earlyMay五月上旬mid-May五月中旬lateMay

五月下旬③日有兩種比較常用的表達(dá)方法，一種較為詳細(xì)和正式，一種比較簡略。9月10日第一種：thetenthofSeptember第二種：September10th（讀作：Septemberthetenth）TeachersDaycomesonSeptember10theveryyear.教師節(jié)是每年的9月10日。MybirthdayisonthetwelfthofJune.我的生日是6月12o7）時間①o'clock來表示整點，且可以省略eighto’clock8點鐘ten（o’clock）10點鐘Igetupatsixeverymorning.我每天早晨6點起床。②按分鐘的順序直接寫出時間。Sixforty6點40

fiveten5點10分③如果分鐘數(shù)少于30分鐘，也就不到半點，可用分鐘+past+鐘點表示，其中past是介詞，意思是“過了”twentypastfour4點20分（4點過了20分鐘）eightpastone1點8分（1點過了8分鐘）④正好半點halfpast...halfpastseven7點半halfpasteleven11點半⑤如果分鐘數(shù)多于30分鐘，也就是過了半點，可用（下一個整點差幾分鐘）+to+（下一個整點）表示，其中to是介詞，意思是“差了”8:35twenty-fivetonine（下一個整點是9點，所以8:35其實就是9點差了25分鐘）3:58twotofour（下一個整點是4點，所以3:58其實就是4點差了2分鐘）⑥當(dāng)分鐘數(shù)是15分鐘時，可用名詞quarter(一刻鐘)表示7:15aquarterpastseven12:15aquarterpasttwelve⑦若想表明是上午，可在時間后加上am或a.m.；若想表明是下午，可在時間后加上pm或p.m.6：00a.m.上午6點4：00p.m.下午4點學(xué)習(xí)小貼士：年、月、日和時間在使用時所跟的介詞不同：Ittookplacein1978.事件發(fā)生在1978年。IliketogotravellinginSeptember.我喜歡在9月份去旅游。HewillcomebackonthefifthofMay.他將在5月5日回來。Iarrivedathalfpastseven.我七點半到那里。當(dāng)然，如果是問當(dāng)下的時間或者日期，不用加介詞?！猈hat'sthedatetoday?今天是什么日期？——It'sDecemberthefifth.12月5日?！猈hatdayisittoday？今天是星期幾？——It'sMonday.星期一——Whattimeisitnow？現(xiàn)在幾點？——It's12o'clock.12點

練習(xí)答案一、按要求完成下表數(shù)字基數(shù)詞序數(shù)詞1524407812661285029991000012244202001

二、翻譯短語和句子1.電話號碼84361630______________________2.

11路公交車_______________3.

成百上千的鳥________________4.

成千上萬的人_______________5.

兩周半___________6.

第八層___________7.第三次___________8.三分之二___________9.第二十六中學(xué)___________10.十個月半___________11.12月25日___________12.8:36______________________13.在二十一世紀(jì)二十年代______________________14.步行十分鐘的路程______________________15.第501房間______________________

三、選用詞的適當(dāng)形式填空1.

My

grandmother

is

______(70)years

old.2.

Amy

is

an

________(18)-year-old

girl.3.

——What

time

is

it?

——___________(4:55).4.

——What’s

the

date

today?

——It’s

April

______(twelve)5.

Sunday

is

the

______(one)

day

of

a

week.6.

Five

and

eight

is

_______(13).7.

Her

room

is

on

the

________(forty-six)

floor.8.

_______(hundred)

of

people

visit

this

museum

every

day.9.

Father’s

Day

is

on

the

______(three)

Sunday

of

June.10.

——Your

scarf

looks

very

beautiful.

——Thank

you.

I

want

to

buy

a______one.(two)

四、單項選擇1.

There

are

some

______

in

our

classroom.A.

hundred

of

books

B.the

hundreds

of

booksC.

hundreds

of

books

D.hundreds

of

book2.

May

is

_______

of

a

year.A.

the

fifth

month

B.the

fifth

monthsC.hundreds

of

books

D.hundred

of

book3.

Is

Sunday

the

______

day

of

the

week?A.a

B.one

C.once

D.first4.

December

the

______

is

Christmas.A.twenty-five

B.twenty-fifth

C.twentieth-five

D.twenty-five

5.

The

new

student

is

in

______.A.Class

2

B.Class

Second

C.2

Class

D.class

26.

Ten

and

five

is

______.A.five

B.fifteen

C.fifty

D.fifth7.

My

brother

is

only

______

years

old.This

Sunday

is

his

_____

birthday.A.three;three

B.three;third

C.third;third

D.third;three8.

Please

open

your

book

and

turn

to

_________.A.Page

12

B.the

12nd

Page

C.page

12

D.page

the

12th9.

At

night

we

can

see

_____

stars

in

the

sky.A.

thousands

and

thousands

of

B.thousand

and

thousands

of

C.thousand

and

thousands

D.thousand

and

thousand10.

There

are

_____

students

in

our

school.A.

four-hundred

and

forty-five

B.four

hundred

and

forty-five

C.fourhundreds

and

forty-five

D.four

hundred

and

forty

five

11.

I

have

been

to

the

village

______.A.

a

hundred

time

B.hundred

times

C.hundreds

of

times

D.hundred

of

times12.

The

teacher

told

me

to

go

over

______

lessons.A.thirst

three

B.the

three

first

C.three

the

first

D.the

first

three13.

Mr

Smith

stayed

in

____

last

night.A.Room

403

B.the

Room

403

C.the

403

room

D.403

the

room14.

There

is

_____

English

book

on

the

table.A.a

B.an

C.one

D.the15.

He

said

he

was

going

to

be

free

in

______.A.

one

and

a

half

hour

B.one

hour

and

half

C.one

and

half

hours

D.an

hour

and

a

half16.

We

live

in

________.A.

the

twenty-first

century

B.the

century

twenty-oneC.century

twenty-one

D.the

century

twenty-first17.

The

road

is

______________.A.

two

thousand

and

five

hundred

metres

longB.

two

thousands

metres

longC.

longone

thousand

five

hundred

metreD.

a

thousand

and

five

hundreds

metres

long18.

March

the

______

is

Women’s

Day.A.eighth

B.ninth

C.tenth

D.eight19.Hejoinedthearmy

on

______

of

May

1980.A.1st

B.the

1

C.first

D.the

first20.

September

is

the

_______

month

of

the

year.A.nineth

B.ninth

C.nine

D.the

twelveth

參考答案一、按要求完成下表數(shù)字

基數(shù)詞

序數(shù)詞15

fifteen

fifteenth

24

twenty-four

twenty-fourth40

forty

fortieth78

seventy-eight

seventy-eighth12

twelve

twelfth66

sixty-six

sixty-sixth128

onehundredandtwenty-eight

onehundredandtwenty-eighth502

fivehundredandtwo

fivehundred

and

second999

ninehundreda