基数词序数词文档格式.docx
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Thefive-year-oldboycandresshimself.那个5岁的孩子自己能穿衣服了。
Mysonisafive-year-oldboy.我的儿子是一个五岁的男孩。
基数词变序数词
1）许多序数词是由相应的基数词后加词尾-th构成的，如four/fourth，sixteen/sixteenth；
twentieth,thirtieth,fortieth等表示整十的序数词，由相应的基数词将词尾y改为ie，再加-th构成。
几个常考的不规则变化序数词需注意：
ninth，twelfth，fortieth，ninetieth等。
2）非整十的多位数，将个位数变成序数词即可：
twenty-first（第21），thirty-sixth（第36），
ninety-ninth（第99），threehundredandsixty-fifth（第365）等。
3）序数词前通常要用定冠词，但当序数词前有形容词性物主代词时，通常省略其前的定冠词。
Todayismyfather’sfortiethbirthday.
4）序数词前一般要用定冠词the，如果序数词前用a或an时，则表示“又一；
再一”（没有具体范围的限制）。
Though
he
had
failed
twice,
wanted
to
try
a
third
time.
尽管他已失败了两次，他还想再试一次。
数词的用法
1）时刻的表示：
小时，分钟，秒钟都用基数词表示，
例如：
fiveo'
clock,seventhirty,twotoeight等。
2）年，月，日的表示：
“日月年或月日年”。
如，2009年5月1日在英语中可写为“May1st，2009”或“1stMay，2009”。
年份用基数词，日用序数词。
五月八号写作Maytheeighth
表示在几世纪这个概念时，用序数词。
在21世纪写作inthetwenty-firstcentury.
3）
分数
（1）分数的分子用基数词，分母用序数词。
one
fifth五分之一
tenth十分之一
（2）当分子大于1时，分母用序数词的复数。
two
thirds三分之二
five
eighths八分之五
（3）当分子是1时，可以用one也可以用a。
second
=
second
third
（4）当分母是2和4时，分别可以用half和quarter代替。
half二分之一
three
quarters四分之三
4）百分数
百分数用percent表示。
forty
percent百分之四十
percent百分之三
5）编号的表示：
基数词放到名词的后面，前面的名词要大写；
序数词放在名词的前面，要加定冠词。
例如：
Lesson1，thefirstlesson.
6）与数词有关的钟点表达法
顺读法（钟点十分钟）如，4：
30fourthirty
4：
15fourfifteen
倒读法（分钟+to/past+钟点）如，4:
30halfpastfour
4:
15fifteenpastfour/aquarterpastfour
7）.分数、百分数与主谓一致
分数、百分数的考查往往和主谓一致相联系。
当分数、百分数修饰可数名词的复数时，谓语动词用复数形式；
当分数、百分数修饰不可数名词时，谓语动词用单数形式。
Eighty
percent
of
the
students
in
our
school
come
from
Henan.
我们学校百分之八十的学生来自河南。
Three
fourths
my
class
are
interested
English.
我们班四分之三的学生对英语感兴趣。
Two
thirds
water
on
earth
is
sea
water.
地球上三分之二的水是海水。
巩固练习
用英语写出下列数字
300____________________500____________________
785____________________1000____________________
5,129____________________16,431____________________
100,000____________________1,000,000____________________
654,962__________________________________________
3,523,976________________________________________
单项选择
1.I’dlike______bowlsofnoodles.Oneisformyselfandtheothertwoareformyparents.
A.one,B.twoC.threeD.four
2____________,youcanworkouttheMathsproblemeasily.
A.InthiswayB.OnthewayC.InthewayD.Onthisway
3.Igotabeautifulbikeon________birthday.Ilikeitverymuch.
A.fifteenthB,fifteenC,myfifteenD.myfifteenth
4.---What’sonthedesk?
---There____________somebooks.
A.beB.areC.isD.am
5.---Hello,MayIspeaktoDavid,please?
---yes,_______.
A.IamDavidB.David,please
C.mynameisDavidD,thisisDavidspeaking
6.Gina’sbirthdayis__________thefirstofJune.
A.inB.onC.atD.for
7.Now,everybody,pleaseturntoPage（页）_____andlookatthe_______picture.
A.Fifth;
fiveBFive;
fifthCFifth;
fifth;
DFive;
five
8:
Thereare_________studentsinourschool.
A.onethousand,ninehundredandforty-five
B.onethousand,ninehundredandfourtyfive
C.onethousandandninehundred,forty–five
D.onethousandandninehundredandforty-five
9.Elevenplusoneis________.
A.twelfthBtwelveC.thirteenD.ten
10.Yesterdaymyteachergaveme_________onhowtolearnEnglish.
A,someadvicesB.manyadvicesC.anadviceD.someadvice
综合练习
一．单项选择题
1.Duringtheseven-dayMayDayholiday,_____familieswentsightseeing.
A.thousandB.thousands
C.thousandsandthousandsD.thousandsof
2.I’veread______sportsnewsabouttheF1racetoday.
A.twoB.piecesC.twopiecesD.twopiecesof
3.DuringWorldWarII,aJewish（犹太的）ladywasprotectedbyalocalfamilyinShanghaiinher_____.
A.fiftiesB.fiftyC.fiftiethD.thefiftieth
4.Itissaidthat______ofthestudentsliketohelptheirparentswiththehousework.
A.three-fifthsB.third-fifthsC.thirds-fifthD.three-fifth
5.Wecansee_____________starsintheskyatnight.
A.athousandofB.thousands
C.thousandofD.thousandsof
6.Itisreportedthatabout______ofthecustomerswanttobuyproductsmadeinChina.
A.two-threesB.two-thirdsC.second-threeD.two-third
7.Nowclass,pleaseopenyourbooksandturnto_____.
A.32pagesB.page32C.32ndpageD.pages32
8.A:
HowmanypeoplewillcometoBeijingfortheOlympicGamesin2008?
B:
It’shardtosay.___________people,Ithink.
A.MillionofB.MillionsofC.TwomillionsofD.Twomillionof
9.A_______boycansingtheEnglishsongverywell.
A.ten-year-old
B.tenyearsold
C.ten-years-old
D.fifthyearsold
10.Theoldprofessorstillworkshardthoughheis_________.
A.inhissixty
B.inhissixties
C.insixties
D.inthesixty
11.Thisclassroomis________ours.
A.threetimesbigas
B.asthreetimesbigas
C.threetimesasbigas
D.asbigthreetimesas
12.Ourschoolisnotverybig.Thereareonly________students.
A.ninehundredsof
B.ninehundred
C.ninehundreds
D.ninehundredof
13.Ittookme________tofindoutthekeytothedrawer.
A.oneandhalfhours
B.oneandahalfhours
C.oneandahalfhour
D.oneandhalfhour
14.Don’tworry.Shecanlookafteryourpet_____
A.carefulenoughB.enoughcareful
C.carefullyenoughD.enoughcarefully
15.Couldyoutellushowtoreadthenumber18,306,211?
A.eighteenmillion,threehundredandsixthousands,twohundredeleven
B.eighteenmillion,threehundredandsixthousand,twohundredandeleven
C.eighteenmillions,threehundredsixthousands,twohundredsandeleven
D.eighteenthousand,threehundredandsix,twohundredeleven
16.Shakespearewasbornin______。
A.1660sB.1660’sC.the1660sD.the1660’s
17.Billsaidtheyweregoingtohave_____holiday。
A.atwo-weeks’B.atwo-week
C.twoweeks’D.twoweeks
18.Over______ofthearticlesoneducationhavebeenpublished。
A.twothirdsB.twothirdC.secondsthreeD.secondsthird
19.Myfatherlefthomeatabout__。
A.sixthirtyB.thirtysixC.thirtytosixD.sixpastthirty
20.Weallthinkthatthe______centurywillbringusmorehopes。
A.twenty-firstB.twentieth-first
C.twenty-oneD.twentieth-one
21.——What’syourroomnumber?
——It’s______。
A.The601RoomB.601Room
C.TheRoom601D.Room601
22.______thestudentsusuallysurfontheInternetandgetinformation。
A.60percentsofB.60percent
C.60percentofD.60percents
23.Several_______newbooksweresoldoutlastweek。
A.ofthousandB.thousands
C.thousandofD.thousand
24.Whichisright?
A.2009,June25B.25rdJune,2009
C.June25,2009D.June25st,2009
25.Tomorrowismy________birthday。
A.sixteenB.sixteenth
C.thesixteenthD.thesixteen
26.Wehavestayedatthisschoolfor_______。
Whichfollowingchoiceiswrong?
A.twoandahalfyearsB.twoyearsandahalf
C.twoyearsandhalfayearD.bothAandB
二、语法填空。
（每小题1分，共10分）
Televisionhasnowcometoeveryfamily.Ithasbecomeaveryimportantpartinpeople’slife.School__1_intheUnitedStateswatchTVabouttwenty-fivehoursaweek.Someparentsfeelthattelevisionisgood__2_theirchildrenbecauseithelpsthem_3_abouttheircountryandknowwhatishappeningintheworldquickly._4_thehelpofsomeprogrammesofeducation,childrendo__5_inschool.
OtherparentsdonotlettheirchildrenwatchTVtoooften.TheysaytheTVprogrammessometimesarenotgoodandchildrencanlearnbadthingsfrom_6__.
Manhasinvented_7__things.Thetelevisionisoneofthem.Ifitis__8__planned,_9_TVcanbegoodforchildren.Ofcoursechildren_10_spendtoomuchtimeonit.Doyouagree?
1.A.childB.childsC.childrenD.childes
2.A.forB.atC.inD.on
3.A.learningB.learnsC.learnedD.learn
4.A.WithB.InC.UnderD.For
5.A.goodB.betterC.badD.worse
6.A.themB.theirC.themselvesD.they
7.A.muchB.manyC.alittleD.few
8.A.careB.carefulC.carefullyD.careless
9.A.watchesB.watchsC.watchedD.watching
10.A.can’tB.canC.mayD.maynot
三、完形填空。
Therearemanywaysforustoreduce（减少）waste.For1,wecanreducepaperandplasticbags.Wecanalsorecyclenewspapers,glass,andcans（易拉罐）tomakenewthings.Herearesomeusefulwaysto2waste.
Writeon3sidesofpaper
Manypeoplewriteononlyonesideoftheirpaper.Whynotstopwastingthe
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