英语数词的各种表示方法课件

Numbers专项复习数词二.数词的各种表示法一、时间的表达方式1．直接表达法。即先读小时，再读分钟如：4：10读成8：36读成2．逆读法。即先读分钟，再读小时①分钟小于30的用“past”，中文译为“过”。即分钟+past+时钟，中文译为“几点过几分”如：5:10（5点过10分）读成2:02（2点过2分）读成fourteneightthirty-sixtenpastfivetwopasttwo②分钟超过30（不包括30分钟）用“to”（中文译为“差”）即“60-分钟数+to+钟点数+1”（中文译为：几点差几分）如：7：45（八点差15分）读成1：58（两点差2分）读成3．半小时用“half”,一刻钟用“quarter”。注意：一刻钟aquarter三刻钟threequarters如：4:30读成9:45读成aquartertotentwototwohalfpastfourfifteentoeight特别注意：一个半小时的表达方式：one/anhourandahalfoneandahalfhoursCanyoureadthem?1:302:15:3:456:387:259:50onethirtyhalfpastonetwofifteenaquarter/fifteenpasttwothreeforty-fiveaquarter/fifteentofoursixthirty-eighttwenty-twotoseventwentyfivepastsevenseventwenty-fivetentotenninefifty三年半的两种表达方式:threeyearsandahalfthreeandahalfyears1.—It’salready7:40now.Whenwillthefilmstart?—___.Westillhavefiveminutes.A.AquartertosevenB.Sevenpastforty-fiveC.Aquartertoeight15分子基数词分母序数词onefifth27分子﹥1分母+stwosevenths14分子a分母quarteraquarter34threequarters12ahalf13threeandonethird3基数词+and+分数二.数词的表示法—分数百分数分数、百分数、小数的表达方法（以分数考法较为常见）1.分数:分子用基数词，分母用序数词，分子大于一，分母加s1/2读作2/3读作1/13读作3/4读作2．小数,百分数的读法:小数点读成point3.6读作百分号%读成percent50%读作onesecond（ahalf）twothirds或者two-thirdsonethirteenththreefourths或者three-quartersthreepointsixfiftypercent80%基数词+percenteightypercenthalf/(百)分数+of+可数名词复数谓语动词用复数half/(百)分数+of+不可数名词谓语动词用单数3.78threepointseveneight1.__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一个半小时两个半小时twoandahalfhours=twohoursandahalfoneandahalfhours=onehourandahalf三.数词的表示法—半的表示法1.Theboyalwaysstaystherefor__.A.oneandhalfhourB.oneandahalfhourC.oneandahalfhours2.Theoldmandrank__beer.A.twobottlesandahalfB.twoandahalfbottleC.twobottleandahalf一倍once，两倍twice，三倍threetimes(三倍或以上基数词＋times)四.数词的表示法—倍数Thisboxisfivetimesasbigasthatone.=Thisboxisfourtimesbiggerthanthatone.①A+be+倍数+as+adj.原+as+B.A是B的…倍…②C+be+倍数+adj.比+than+D.C比D……倍1.Thisbuildingis__thatbuilding.A.threetimeastallasB.twicetallerthanC.threetimesastalleras2.我的箱子比你的重六倍!Myboxis____________________yours.sixtimesheavierthanseventimesasheavyas①Thewinneris___.Heisan___boy.A.eight-year-old;eightyearsoldB.eightyearsold;eight-year-oldC.eight-yearsold;eight-year-old②HecametoChina____.A.attheageof20B.whenheis20C.atageof20五.数词的表示法—年龄①Theriverisabout____.A.6,000meterslongB.6,000-meters-longC.6,000-meter-long五.数词的表示法—计量be+数词+量词+形容词10.Hewentdowntothevillagewhichwas___milesawayfromthecity.A.threehundredsB.threehundredC.threehundredsofB.threehundred6．Thewallis____.A．fourmeterslongB．fourmeterlongC．four-meterlong7．What'sthedatetoday?It's___．A．MarchtheeightB．MarcheighthC．eight，March8．Ithappenedinthe1040's．A．inthefortiesoftheeleventhcentury．B．inthefortiesofthetenthcentury．C．intheforty9．About_____________oftheearth\'ssurfaceiscoveredwithwater.A.three-foursB.three-fourthC.three-fourthsA．fourmeterslongB．MarcheighthA．inthefortiesoftheeleventhcentury．C.three-fourths选择填空。1．Marchis____monthofayear．A．athreeB．thethirdC．athird2．Wewillhaveameetingat8:05____．A．fivetoeightB．eightfiveC．eightofive3．Eightpluseightis____.A．sixteenB．sixty-fourC．one4．Heisan____boy．A．eightyearsB．eight-year-oldC．eight-years-old5．Wewillhavea___walk．A．tenminutesB．tenminutes'C．ten-minutesB．thethirdC．eightofiveA．sixteenB．eight-year-oldB．tenminutes'六、加减乘除表示法1.“加”用plus，and或add表示Howmuchistwoplusthree?Itisfive．Twoandthreeisequaltofive．2.“减”用minusHowmuchistenminussix?3.“乘”multiply3X4＝?Howmuchisthreetimesfour?4.“除”用divide的过去分词形式表示16÷4=?Howmuchissixteendividedbyfour?2．more还可与alittle，afew，alot，several等词连用（1）Therearemanymoredictionariesonthedesk．课桌上有许多词典。（2）Wouldyoulikesomemoretea？再喝点茶好吗？4.名词省略如果前后意思清楚，another或more后面的名词可以省去。如：1．Iclimbedthestairsslowly，carryingabigsuitcase，myfatherfollowingwithtwomore．1Tonyisgoingcampingwith_boysnextSunday．A．littletwootherB．twolittleotherC．twootherlittleD．littleothertwo3．Doyouknowwherehefoundtheothertwophotos？另外两张照片3.more1．more1）Shehasgotfivemoreelectricfans．她还有五台电扇。七、another,other,more修饰数词的用法1.anotherA)another+名词单数B)表“另外的、额外的、附加的时，+few或具体数字的复数1．—Haveyoufinishedyourreportyet？—No，Iwillfinishitin10minutes．A．anotherB．OtherC．moreD．less2．Thestrikemaylastanotherthreedays．罢工可能还要持续三天。2.other+复数名词，置于数词之后B)但与定冠词the连用时，other要放在数词前。