英语语法复习--数词PPT课件

.,1,数词,.,2,数词的考点,一.基数词、序数词,二.数词的表示法,.,3,一.基数词、序数词,first,second,third,fourth,fifth,sixth,eighth,ninth,twelfth,twentieth,twenty-first,fortieth,onehundredth,onehundredandfifth,onehundredandtwenty-ninth,nineteenth,.,4,基数词变序数词的口诀,一二三，要死记；四后都加th；五用f换ve，其后都加th;六七同四首规律；八少t,九去e,然后再加th;十和十一首规律;十二f换ve,然后再加th;十三起，十九止，其后都加th;整十数有规律，先将y变为ie，然后再加th；几十几，有规律，前半基数后半序，在用短横线连起；,.,5,二.基数词的读法,1、百位和十位间用and连接,十位和个位间用-连接,threehundredandtwenty-one,321,2、右往左数,三位一组,逗号隔开.依次是thousand(千)million(百万)billion(十亿),.,6,fourthousandthreehundredandtwenty-one,sevenmillion,sixhundredandfiftyfourthousandthreehundredandtwenty-one,7,654,321,1,987,654,321,4321,4,321,onebillionninehundredandeighty-sevenmillion,sixhundredandfifty-fourthousandthreehundredandtwenty-one,.,7,1.hundredthousand(表示具体数字)millionbillion2.hundredsthousands(表示概数)millionsbillions,三.基数词的用法,数词(several)+,+of,some/manyhundredsof,.,8,1.Ifa=3,b=4,whatstheanswertotheproblem,a+2ab+1=?theansweris_.A.twentyeightB.twenty-eighthC.twenty-eight2.Inourschoolseveral_studentsareabletosearchtheInternet.A.hunderdofB.hunderdsofC.hundred,.,9,3.Many_sheepwerekilledintheaccident.A.thousandsofB.thousandC.thousands4.Thereareovernine_workersinthefactory,but_ofyoungpeoplehopetoworkinit.A.hundred;hundredsB.hundreds;hundredsC.hundreds;hundred,.,10,月日年在2008年10月1日,四.数词的表示法年月日,onOctorberthefirst,twothousandandeight,onAugusttheninth,inMay,twothousandandten,有日用on无日用in,onOct.1st,2008,月日在8月9日月年在2010年5月,.,11,1.Theaccidenthappenedon_.A.April5,2001B.2001,April5C.April2001,52.Iwasborn_.A.inMarch8,1993B.onJuly9,1994C.onMay,1995,.,12,20世纪90年代,inthe1990s/inthe1990s,在他50多岁时,inhisfifties,四.数词的表示法年代世纪,inthe,inones+整十基数词复数在某人几十岁时,nineteen,nineties,.,13,1.Therewillbemorechancesin_centurythanin_century.A.twenty-one,twentyB.twenty-first,twentiethC.thetwenty-first,thetwentieth2.Thecitychangedalot_.A.in1980sB.inthe1980sC.inthe1980,.,14,3.Hegraduatedin_of_century.A.thesixtieth;twentyB.sixty;thetwentiethC.thesixties;thetwentieth4.Hegottheprize_.A.inhisfiftiesB.infiftiesC.inhisfifty,.,15,oneoclock,tenpasttwo,halfpastthree,twentytofive,aquarterpastfive,aquartertoseven,sevenfifty,表示在几点钟用介词at,四.数词的表示法时间,.,16,1.Itsalready7:40now.Whenwillthefilmstart?_.Westillhavefiveminutes.A.AquartertosevenB.Sevenpastforty-fiveC.Aquartertoeight,.,17,15,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,四.数词的表示法分数,.,18,1._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,.,19,一个半小时两个半小时,twoandahalfhours=twohoursandahalf,oneandahalfhours=onehourandahalf,四.数词的表示法半的表示法,1.Theboyalwaysstaystherefor_.A.oneandhalfhourB.oneandahalfhourC.oneandahalfhours2.Theoldmandrank_beer.A.twobottlesandahalfB.twoandahalfbottleC.twobottleandahalf,.,20,一般编码用名词+基数词207房三年级一班第五部分第一课3号汽车第一中学,Room207ClassoneGradethreepartfive=thefifthpartlessonone=thefirstlessonBusNo.3=theNo.3busNo.1MiddleSchool,四.数词的表示法编号,.,21,Thewinneris_.Heisan_boy.A.eight-year-old;eightyearsoldB.eightyearsold;eight-year-oldC.eight-yearsold;eight-year-oldHecametoCh