数词专题基数词序数词1 one2 two3 three4 four5 five6 six7 seven8 eight9 nine10ten11eleven12twelve13thirteen14fourteen15fifteen16sixteen17seventeen18eighteen19nineteen20twenty21 twenty-one30thirty40forty50fifty60sixty70seventy80eighty90ninety100onehundred 数词的其他用法1、分数、小数、百分数的表达法分数：分子用基数词，分母用序数词。分子是 1，分母用单数；分子大于 1，分母用复数。中间的连字符可省略。如：1/2ahalf 或onehalf;2/3two-thirds;1/4one-fourth 或 aquarter;小数：小数点读作 point,小数点前后均用基数词。如：123.405 百分数：百分数用 percent 表示，percent 没有复数形式。如：12%2、编号的表达法第一页：PageOne 或 thefirstpage第五课：LessonFivethefifthlesson401 房间：Room4018 路车：BusNo.8第一中学：No.1MiddleSchool电话号码：882167353、年、月、日、时刻的表达法年份：2014：twothousandandfourteen;1976:nineteenseventy-six 日期：12 月 1 日：Dec.1st 或 thefirstofDecember;2014 年 2 月 16 日：Feb.16th,2014时刻：5:15fivefifteen 或 aquarterpastfive;8:30eightthirty 或 halfpasteight;10:45tenforty-five 或 aquartertoeleven“半”：1/2:half;半小时:halfanhour;1.5 小时 oneandahalfhours 或 onehourandahalf【经典例题】例 1.－Howoldisyourdaughter?一.Wehadaspecialpartyforherpartyyesterday.A. Nine,nineB.Nine,ninthC.Ninth,ninthD.Nine,nineth例 2.It'ssaidthatofthewateraroundtheworldpolluted.A.twothird;hasB.twothirds;haveC.twothird;areD.twothirds;is例 3.Weplantedtreeslastyear.A.hundredsofB.hundredofC.fivehundredsD.fivehundredof例 4.ThewinnerofthesingingcompetitionwasagirlcalledZhangMeifromChina.A.19-years-oldB.19-year-oldC.19-year-oldsD.19yearsold【经典习题】1. Dorislivesonthefloor.It'stoohigh,soshehastotakealifteveryday.A.fourB.fourthC.fortyD.fortieth2. —Haveyoufinishedyourtoday'swork?—No,Ineed.A.twoanotherhoursB.anothertwohoursC.moretwohoursD.twootherhours3. Linda'smotherlooksyoung,butactuallyisinher.A.sixtiesB.sixtiethC.sixtyyearsold4.__________________Decemberismonthoftheyear.A.twelveB.thetwelfthC.thetwelveth5.________ofthestudentsinourschoolgi...
