英語數(shù)詞各種表示方法

數(shù)詞的考點二.數(shù)詞的各種表示法第1頁/共22頁第一頁，共23頁。一、時間的表達方式1．直接表達法。即先讀小時，再讀分鐘如：4：10讀成

8：36讀成2．逆讀法。即先讀分鐘，再讀小時①分鐘小于30的用“past”，中文譯為“過”。即分鐘+past+時鐘，中文譯為“幾點過幾分”如：5:10（5點過10分）讀成

2:02（2點過2分）讀成fourteneightthirty-sixtenpastfivetwopasttwo第2頁/共22頁第二頁，共23頁。②分鐘超過30（不包括30分鐘）用“to”（中文譯為“差”）即“60-分鐘數(shù)+to+鐘點數(shù)+1”（中文譯為：幾點差幾分）如：7：45（八點差15分）讀成

1：58（兩點差2分）讀成3．半小時用“half”,一刻鐘用“quarter”。注意：一刻鐘aquarter三刻鐘threequarters

如：4:30讀成

9:45讀成

aquartertotentwototwohalfpastfourfifteentoeight特別注意：一個半小時的表達方式：one/anhourandahalfoneandahalfhours第3頁/共22頁第三頁，共23頁。Canyoureadthem?1:302:15:3:456:387:259:50onethirtyhalfpastonetwofifteenaquarter/fifteenpasttwothreeforty-fiveaquarter/fifteentofoursixthirty-eighttwenty-twotoseventwentyfivepastsevenseventwenty-fivetentotenninefifty三年半的兩種表達方式:threeyearsandahalfthreeandahalfyears第4頁/共22頁第四頁，共23頁。1.—It’salready7:40now.Whenwillthefilmstart?—___.Westillhavefiveminutes.A.AquartertosevenB.Sevenpastforty-fiveC.Aquartertoeight第5頁/共22頁第五頁，共23頁。15分子基數(shù)詞分母序數(shù)詞onefifth27分子﹥1分母+stwosevenths14分子a分母quarteraquarter34threequarters12ahalf13three

andonethird3基數(shù)詞+and+分?jǐn)?shù)二.數(shù)詞的表示法—

分?jǐn)?shù)百分?jǐn)?shù)第6頁/共22頁第六頁，共23頁。分?jǐn)?shù)、百分?jǐn)?shù)、小數(shù)的表達方法（以分?jǐn)?shù)考法較為常見）1.分?jǐn)?shù):分子用基數(shù)詞，分母用序數(shù)詞，分子大于一，分母加s1/2讀作 2/3讀作1/13讀作 3/4讀作2．小數(shù),百分?jǐn)?shù)的讀法:小數(shù)點讀成point3.6讀作百分號%讀成percent

50%讀作onesecond（ahalf）twothirds或者two-thirdsonethirteenththreefourths或者three-quartersthreepointsixfiftypercent第7頁/共22頁第七頁，共23頁。80%基數(shù)詞+percenteightypercenthalf/(百)分?jǐn)?shù)+of+可數(shù)名詞復(fù)數(shù)謂語動詞用復(fù)數(shù)half/(百)分?jǐn)?shù)+of+不可數(shù)名詞謂語動詞用單數(shù)3.78threepointseveneight第8頁/共22頁第八頁，共23頁。1.

__ofthestudents__boysinClassA.Twothree;areB.Twothirds;areC.Twothirds;is2.

__ofhermoney__spentonclothes.A.Twothree;areB.Twothirds;isC.Twothird;is3.__theteachersinourschoolisaboutonehundred,and__ofthemarewomenteachers.A.Thenumberof;twothirdB.Thenumberof;twothirdsC.Anumberof;twothirds第9頁/共22頁第九頁，共23頁。一個半小時兩個半小時twoandahalfhours=twohours

andahalfoneandahalfhours=onehourandahalf三.數(shù)詞的表示法—

半的表示法1.

Theboyalwaysstaystherefor__.A.oneandhalfhourB.oneandahalfhourC.oneandahalfhours2.

Theoldmandrank__beer.A.twobottlesandahalfB.twoandahalfbottleC.twobottleandahalf第10頁/共22頁第十頁，共23頁。一倍once，兩倍twice，三倍threetimes(三倍或以上基數(shù)詞＋times)四.數(shù)詞的表示法—

倍數(shù)

Thisboxisfivetimes

asbigasthatone.=Thisboxisfourtimesbigger

thanthatone.①

A+be+倍數(shù)

+as+adj.原+as+B.A是B的…倍…②

C+be+倍數(shù)

+adj.比+than+D.C比D…

…倍第11頁/共22頁第十一頁，共23頁。1.

Thisbuildingis__thatbuilding.A.threetimeastallasB.twicetallerthanC.threetimesastalleras2.

我的箱子比你的重六倍!Myboxis____________________yours.

sixtimesheavierthanseventimesasheavyas第12頁/共22頁第十二頁，共23頁。①

Thewinneris___.Heisan___boy.A.eight-year-old;eightyearsoldB.eightyearsold;eight-year-oldC.eight-yearsold;eight-year-old②HecametoChina____.A.attheageof20B.whenheis20C.atageof20五.數(shù)詞的表示法—

年齡第13頁/共22頁第十三頁，共23頁。①Theriverisabout____.A.6,000meterslongB.6,000-meters-longC.6,000-meter-long五.數(shù)詞的表示法—

計量be+數(shù)詞+量詞+形容詞第14頁/共22頁第十四頁，共23頁。10.Hewentdowntothevillagewhichwas___milesawayfromthecity.

A.threehundredsB.threehundred

C.threehundredsofB.threehundred第15頁/共22頁第十五頁，共23頁。6．Thewallis____.

A．fourmeterslongB．fourmeterlongC．four-meterlong7．What'sthedatetoday?It's___．

A．MarchtheeightB．Marcheighth

C．eight，March

8．Ithappenedinthe1040's．

A．inthefortiesoftheeleventhcentury．

B．inthefortiesofthetenthcentury．

C．intheforty9．About_____________oftheearth\'ssurfaceiscoveredwithwater.

A.three-foursB.three-fourthC.three-fourthsA．fourmeterslongB．MarcheighthA．inthefortiesoftheeleventhcentury．C.three-fourths第16頁/共22頁第十六頁，共23頁。選擇填空。

1．Marchis____monthofayear．

A．a(chǎn)threeB．thethirdC．a(chǎn)third

2．Wewillhaveameetingat8:05____．

A．fivetoeightB．eightfiveC．eightofive

3．Eightpluseightis____.

A．sixteenB．sixty-fourC．one

4．Heisan____boy．

A．eightyearsB．eight-year-old

C．eight-years-old

5．Wewillhavea___walk．

A．tenminutesB．tenminutes'

C．ten-minutesB．thethirdC．eightofiveA．sixteenB．eight-year-oldB．tenminutes'第17頁/共22頁第十七頁，共23頁。六、加減乘除表示法

1.“加”用plus，and或add表示

Howmuchistwoplusthree?

Itisfive．

Twoandthreeisequaltofive．

2.“減”用minusHowmuchistenminussix?

3.“乘”multiply3X4＝?Howmuchisthreetimesfour?

4.“除”用divide的過去分詞形式表示

16÷4=?Howmuchissixteendividedbyfour?第18頁/共22頁第十八頁，共23頁。2．more還可與alittle，afew，alot，several等詞連用（1）Therearemanymoredictionariesonthedesk．課桌上有許多詞典。（2）Wouldyoulikesomemoretea？再喝點茶好嗎？4.名詞省略

如果前后意思清楚，another或more后面的名詞可以省去。如：1．Iclimbedthestairsslowly，carryingabigsuitcase，myfatherfollowingwithtwomore．第19頁/共22頁第十九頁，共23頁。1Tonyisgoingcampingwith_boysnextSunday．A．littletwootherB．twolittleotherC．twootherlittleD．littleothertwo

3．Doyouknowwherehefoundtheothertwophotos？另外兩張照