初中语法数词复习

一.基数词、序数词二.数词的表示法基数词的构成1）1－12,独立成词。onetwothreefourfivesixseveneightnineteneleventwelve2）13--19,由3－9+teen构成。14–fourteen16--sixteen17--seventeen19—nineteen特殊拼写:13–thirteen15--fifteen18—eighteen3）20－90,以-ty结尾。20—twenty30---thirty40—forty50—fifty80---eighty60---sixty70---seventy90—ninety4）21－99，两位数，十位与个位之间有“－”。21twenty—one55fifty—five99ninety—nine5）101—999，三位数，百位与十位/个位之间加and。101onehundredandone840eighthundredandforty693sixhundredandninety-three基数词序数词基数词序数词onetwelvetwotwentythreetwenty-onefourfortyfiveonehundredsixonehundredandfiveeightonehundredandtwenty-nineninenineteen一.基数词变序数词firstsecondthirdfourthfifthsixtheighthninthtwelfthtwentiethtwenty-firstfortiethonehundredthonehundredandfifthonehundredandtwenty-ninthnineteenth口诀：基变序，有规律，词尾加上th。一、二、三特殊记，结尾字母tdd.八减t，九减e，ve要用f替。ty把y变成ie，再加th。若是碰到几十几前用基，后用序。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-one3212、右往左数,三位一组,逗号隔开.依次是thousand(千)million(百万)billion(十亿)29,43150076,,thousandhundredmillionbillionand6)1，000以上数目,从右向左每三位用“，”分开,分别读为thousand,million,billion基数词的构成fourthousandthreehundredandtwenty-onesevenmillion,sixhundredandfiftyfourthousandthreehundredandtwenty-one7,654,3211,987,654,32143214,321onebillionninehundredandeighty-sevenmillion,sixhundredandfifty-fourthousandthreehundredandtwenty-one1.hundredthousand(表示具体数字)millionbillion2.hundredsthousands(表示概数)millionsbillions三.基数词的用法数词(several)++ofsome/manyhundredsof1.—Ifa=3,b=4,what’stheanswertotheproblem,a+2ab+1=?—theansweris___.A.twentyeightB.twenty-eighthC.twenty-eight2.Inourschoolseveral__studentsareabletosearchtheInternet.A.hunderdofB.hunderdsofC.hundred3.Many__sheepwerekilledintheaccident.A.thousandsofB.thousandC.thousands4.Thereareovernine__workersinthefactory,but__ofyoungpeoplehopetoworkinit.A.hundred;hundredsB.hundreds;hundredsC.hundreds;hundred①月日年在2008年10月1日四.数词的表示法—年月日onOctorberthefirst,twothousandandeight日the+序数词月（首字母大写）月日与年之间用，分开年（两位两位读）onAugusttheninthinMay,twothousandandten有日用on无日用inonOct.1st,2008②月日在8月9日③月年在2010年5月1.Theaccidenthappenedon___.A.April5,2001B.2001,April5C.April2001,52.Iwasborn___.A.inMarch8,1993B.onJuly9,1994C.onMay,199520世纪90年代inthe1990s在他50多岁时inhisfifties四.数词的表示法—年代世纪intheinone’s+整十基数词复数在某人几十岁时nineteennineties1.Therewillbemorechancesin__centurythanin__century.A.twenty-one,twentyB.twenty-first,twentiethC.thetwenty-first,thetwentieth2.Thecitychangedalot___.A.in1980sB.inthe1980sC.inthe19803.Hegraduatedin__of__century.A.thesixtieth;twentyB.sixty;thetwentiethC.thesixties;thetwentieth4.Hegottheprize__.A.inhisfiftiesB.infiftiesC.inhisfifty时间类型表示法例读法整点基数词（+o’clock)1:00﹤30分钟分钟+past+小时2:10=30分钟half+past+小时3:30﹥30分钟（60-分钟）+to+（小时+1）4:40分钟逢15即一刻钟aquarter5:156:45简化法按顺序读基数词7:50oneo’clocktenpasttwohalfpastthreetwentytofiveaquarterpastfiveaquartertosevensevenfifty表示在几点钟用介词at四.数词的表示法—时间1.—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+分数四.数词的表示法—分数百分数80%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四.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.sixtimesheavierthanseventimesasheavyas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①Thewinneris___.Heisan___boy.A.eight-year-old;eightyearsoldB.eightyearsold;eight-year-oldC.eight-yearsold;eight-year-old②HecametoChina____.A.attheageof20B.whenheis20C.atageof20四.数词的表示法—年龄①Theriverisabout____.A.6,000meterslongB.6,000-meters-longC.6,000-meter-long四.数词的表示法—计量be+数词+量词+形容词