英语数词的各种表示方法ppt课件

Numbers,专项复习数词,1,数词的考点,二.数词的各种表示法,2,一、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,fourten,eightthirty-six,tenpastfive,twopasttwo,3,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,aquartertoten,twototwo,halfpastfour,fifteentoeight,特别注意：一个半小时的表达方式：one/anhourandahalfoneandahalfhours,4,Canyoureadthem?,1:302:15:3:456:387:259:50,onethirty,halfpastone,twofifteen,aquarter/fifteenpasttwo,threeforty-five,aquarter/fifteentofour,sixthirty-eight,twenty-twotoseven,twentyfivepastseven,seventwenty-five,tentoten,ninefifty,三年半的两种表达方式:threeyearsandahalfthreeandahalfyears,5,1.Itsalready7:40now.Whenwillthefilmstart?_.Westillhavefiveminutes.A.AquartertosevenB.Sevenpastforty-fiveC.Aquartertoeight,6,15,分子基数词分母序数词,onefifth,27,分子1分母+s,twosevenths,14,分子a分母quarter,aquarter,34,threequarters,12,ahalf,13,threeandonethird,3,基数词+and+分数,二.数词的表示法分数百分数,7,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-thirds,onethirteenth,threefourths或者three-quarters,threepointsix,fiftypercent,8,80%,基数词+percent,eightypercent,half/(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,3.78,threepointseveneight,9,1._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,10,一个半小时两个半小时,twoandahalfhours=twohoursandahalf,oneandahalfhours=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,11,一倍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.,A+be+倍数+as+adj.原+as+B.A是B的倍C+be+倍数+adj.比+than+D.C比D倍,12,1.Thisbuildingis_thatbuilding.A.threetimeastallasB.twicetallerthanC.threetimesastalleras2.我的箱子比你的重六倍!Myboxis_yours.,sixtimesheavierthan,seventimesasheavyas,13,Thewinneris_.Heisan_boy.A.eight-year-old;eightyearsoldB.eightyearsold;eight-year-oldC.eight-yearsold;eight-year-oldHecametoChina_.A.attheageof20B.whenheis20C.atageof20,五.数词的表示法年龄,14,Theriverisabout_.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,15,10.Hewentdowntothevillagewhichwas_milesawayfromthecity.A.threehundredsB.threehundredC.threehundredsof,B.threehundred,16,6Thewallis_.AfourmeterslongBfourmeterlongCfour-meterlong7Whatsthedatetoday?Its_AMarchtheeightBMarcheighthCeight，March8Ithappenedinthe1040sAinthefortiesoftheeleventhcenturyBinthefortiesofthetenthcenturyCintheforty9About_oftheearthssurfaceiscoveredwithwater.A.three-foursB.three-fourthC.three-fourths,Afourmeterslong,BMarcheighth,Ainthefortiesoftheeleventhcentury,C.three-fourths,17,选择填空。1Marchis_monthofayearAathreeBthethirdCathird2Wewillhaveameetingat8:05_AfivetoeightBeightfiveCeightofive3Eightpluseightis_.AsixteenBsixty-fourCone4Heisan_boyAeightyearsBeight-year-oldCeight-years-old5Wewillhavea_walkAtenminutesBtenminutesCten-minutes,Bthethird,Ceightofive,Asixteen,Beight-year-old,Btenminutes,18,六、加减乘除表示法1.“加”用plus，and或add表示Howmuchistwoplusthree?ItisfiveTwoandthreeisequaltofive2.“减”用minusHowmuchistenminussix?3.“乘”multiply3X4?Howmuchisthreetimesfour?4.“除”用divide的过去分词形式表示164=?Howmuchissixteendividedbyfour?,19,2more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：1Iclimbedthestairsslowly，carryingabigsuitcase，myfatherfollowingwithtwomore,20,1Tonyisgoingcampingwith_boysnextSundayAlittletwootherBtwolittleotherCtwootherlittleDlittleothertwo3Doyouknowwherehefoundtheothertwophotos？另外两张照片3.more1more1）Shehasgotfivemoreelectricfans她还有五台电扇。,21,七、another,other,more修饰数词的用法1.anotherA)ano