14数词Word文档格式.docx
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86→eighty-six
99→ninety-nine
5)101~999等三位数中,十位数或个位数的前面加and。
101→a(one)hundredandone
230→twohundredandthirty
513→fivehundredandthirteen
678→sixhundredandseventy
999→ninehundredandninety-nine
6)1,000以上的数,要用计数逗点,即从个位开始,每隔三位数加一逗点,第一个逗点处是thousand(千),第二逗点处是million(百万),第三个逗点处是thousandmillion(英)或billion(美)(十亿)。
一千1,000→a(one)thousand
4,596→fourthousandfivehundredandninety-six
一万10,000→tenthousand
18,261→eighteenthousandtwohundredandsixty-one
十万100,000→a(one)hundredthousand
766,132→sevenhundredandsixty-sixthousandonehundredandthirty-two
一百万1,000,000→a(one)million
4,538,536→fourmillionfivehundredandthirty-eightthousandfivehundredandthirty-six
一千万10,000,000→tenmillion
一亿100,000,000a(one)hundredmillion
十亿以上的数,英美说法不同。
十亿10,000,000,000
英国
a(one)thousandmillion
美国
a(one)billion
百亿10,000,000,000→tenthousandmillion
注意
汉语中有百、千、万、亿等单位,而英语中有hundred(百),thousand(千),million(百万)等,但没有表示万和亿的专门单词,要用十进位的方法推算出来。
thousand千
tenthousand万
hundredthousand十万
million百万
tenmillion千万
hundredmillion亿(万万)
巧学巧用
读数的诀窍
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,保你又快又喜欢。
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。
2.hundred,thousand,million与of连用
数词hundred,thousand,million等的前面有其他数词,用作确定的数目时,不用复数形式。
threethousand三千(不能说:
threethousands)
fivehundred五百(不能说:
fivehundreds)
但是当hundred,thousand,million在用作不确定的数目时,则需用复数形式,并且往往后接of。
hundredsofpeople几百人
hundredsofthousandsofpeople几十万人
millionsofthelocusts千百万只蝗虫
有hundred等数词
有s时有of,没有s没of;
数词前面加,没有s没of;
前面无数词,有s也有of。
1.序数词的构成及其说明
1)序数词第一、第二和第三为first,second和third,其他序列数词的构成是在基数词后加-th。
six→sixth
seven→seventh
ten→tenth
four→fourth
2)fifth(第五)、eighth(第八)、ninth(第九)和twelfth(第十二)在拼法上有变化。
3)二十、三十等基数词变为序数词时,要把y变成ie再加-th。
twenty→twentieth
forty→fortieth
4)基数词几十几变成序数词时,表示几十的数词不变,只把表示几的基数词变成序数词。
twenty-one→twenty-firstforty-five→forty-fifth
5)第一百、第一千、第一百万、第十亿都是在基数词后直接加-th构成。
第一百→hundredth
第一千→thousandth
第一百万→millionth
第十亿→billionth
6)序数词的缩略形式是由阿拉伯数字加序数词的最后两个字母构成。
1st,2nd,3rd,4th,21st,32nd,40th
2.序数词在句子中的应用
序数词在句中主要是充当定语,也可以作主语、表语、宾语,前面要加定冠词the。
ThefirsttimeIcametoChina,Ilikeditverymuch.我第一次来中国,我就非常喜欢这个国家。
Thefirstisalwaysbetterthanthesecond.
第一总是比第二好。
Shewillchoosethethird.她将选择第三。
数词练习题
一.单项选择
(
)1.Thereare___________daysinayear.
A.threehundredandsixtyfive
B.threehundredandsixty-five
C.threehundredsandsixtyfive
D.threehundredsandsixty—five
)2.Dannylivesin__________.
A.room404
B.Room404
C.404room
D.404Room
)3.Jimisin__________.
A.classone,gradesix
B.gradeone,classsix
C.ClassOne,GradeSix
D.GradeOne,ClassSix
)4.Thebikecostme_________yuan.
A.fivehundredforty
B.fivehundredsfourty
C.fivehundredandforty
D.fivehundredfourty
)5.Mytelephonenumberis____________.
A.eightyeighttwofortyfourzeronine
B.eighteighttwodoublefourOnine
C.eightyeighttwoforty-fourzeronine
D.eighteighttwofourfourzeronine
)6.Isthereanyfoodforus_________?
A.ten
B.tenth
C.thetenth
D.theten
)7.Maryis_________girl.
A.an8yearold
B.8一years—old
C.the8yearsold
D.an8一year—old
)8.—Whatdayisittoday?
—___________
A.June
B.Tuesday
C.Itishot
D.It’sfine
)9.—What’sthedatetoday?
A.It’sSaturday
B.It’sJuly
C.It’sfine
D.It’sJuIy15
)10.—Whattimedoyougetupeveryday?
A.It’sseveno’clock
B.Seveno’clocktime
C.Atseven
D.Onseven
二、单项选择
1.Thetreeis___________
tall.
A.fourteenfoots
B.fourteenfeet
C.fourteenfoot
D.fortyfoot
2.Fiftyplus
___________
.
A.fourtyisninety
B.fortyisninety
C.thirtyisninety
D.fiftyisninety
3.Thereare___________
studentsinthisschool.
A.fourhundredfifty-two
B.fourhundredsfiftytwo
C.fourhundredandfifty-two
D.fourhundredsandfifty-two
4.Myhomeisabout
awayfromtheschool.
A.threehundredmetre
B.threehundredsmetres
C.threehundredmetres
D.threehundredmetre
5.Decemberis___________
andlastmonthinayear.
A.thetwelveth
B.twelve
C.thetwelfth
D.twelfth
6.
___________oftheteachersintheschoolarefromcolleges.
A.Threequarters
B.Two-third
C.Twofifth
D.Two-ninth
7.Thereweretwoworldwarsduring
century.
A.thetwenties
B.thetwentieth
C.twenties
D.twentieth
8.Intheforties,hisfatherservedintheNew
___________
Army(新四军),whilehismotherworkedintheRoute___________
Army(八路军).
A.Fourth;
Eighth
B.Four;
Eighth
C.Fourth;
eight
D.Fourth;
eighth
9.Wearelearning___________
now.
A.thetwenty-firstlesson
B.LessonTwenty-first
C.the21thlesson
D.Lesson21st
10.Hewillstayherefor
A.oneandhalfmonth
B.oneandahalfmonth
C.onemonthsandahalf
D.oneandahalfmonths
11.—What’sthedatetoday?
—It’s___________
A.nine
B.Monday
C.June5
D.11:
00
12.—Wouldyouliketoeat
apples?
—No,thankyou.
A.moretwo
B.twomore
C.twoanother
D.twoelse
13.Hesaidhewouldcomebackin
A.oneortwodays
B.oortwodays
C.oneandtwodays
D.adayandtwo
14.—Howoftendoyouwritetoyourparentsabroad?
—
A.Twiceamonth
B.Secondtimesamonth
C.Asecondtimeamonth
D.secondatimeamonth
15.
___________peoplediedinthetrafficaccidentsintheworld.
A.Thousandof
B.Thousandsof
C.Tenthousandsof
D.Tenthousandof
16.Inthe1850s,about
wascoveredbyforestintheUSA.
A.third
B.athird
C.thethird
D.athirds
17.Thisisher___________
birthday,Ithink.
A.twenty
B.twentieth
C.thetwentieth
D.thetwenty’s
18.September___________
isTeachers’Day.
A.theten
B.tenth
C.thetenth
D.theten’s
19.Thereare
childreninthecountryschool.
A.twothousandfivehundredandsixty
B.twothousandsfivehundredandsixty
C.twothousandsfivehundredsandsixty
D.twothousandfivehundredsandsixty
20.
thesoldiersisabouttwothousand.
A.Anumber
B.Thenumberof
C.Agreatnumber
D.Thebiggestnumbersof
一、1~5BBCCC
6~10ABAAD
11~15CBAAB
16~20BBCAB