数词---
基数词序数词
分数5?fiveandthreequarters
小数8.565eightpointfivesixfive
乘方
10的4次方thefourthpoweroften
Thesquareof3is9.平方Thecubeof2is8.立方
百分比
10percent20percent
EightypercentofmyfriendsareChinese.
ThesurveyshowsthathalfofthegirlschoosefilmandTVstarsastheiridols,while48%oftheboysfavorsportsstars.
数学运算
加减乘除
+plus/and/addedto-minusxtimes,multipliedby÷dividedby
编号
WorldWarII=thesecondWorldWar
年份，年代
inthe1870s/1870’sinhis(early,mid,late)fiftiesinherteens（13-19）
时间
8:00eighto’clock,eight,eighto’clocksharp
倍数
Thisruleristwice/threetimesaslongasthatone.
Thisruleristwice/threetimeslongerthanthatone.
Thisruleristwice/threetimesthelengthofthatone.
Ihavetwiceasmanybooksasyou.
几个需要注意的地方
1.twosandthrees
Thestudentsenteredtheclassroomintwosandthrees.
2.morethan/over50,lessthan50(under50)
Lessthan50studentstookpartinthatactivity.
Childrenunder13arenotallowedtowatchthatmovie.
3.nomorethan,仅仅notmorethan不到
Ihavenomorethan20yuaninmypocket.
Ihavenotmorethan20yuaninmypocket.
4.50orso
Thebookcosts50yuanorso.
5.oneoutoften,onefromten,oneineverytenstudents,twooutoften,
Iguessoneoutoften(onefromten,oneineverytenstudents)lovestoplaycomputergamesatweekend.
6.twice,oneortwotimes
I’vebeentotheGreatWalltwice.
数字+名词+形容词
It’safive-meter-longbridge.
Thebridgeisfivemeterslong.
It’sabridgefivemeterslong.
twohundredpeople,hundredsofpeople,
twodozenpeople,dozensofpeople,twoscorepeople,scoresofpeople
Hundredsofthousandsofpeoplegatheredtowitnessthehistoricmoment.
thelastline倒数第一行,最后一行thelastbutoneline,倒数第二行
Pleasereadthelastbutoneline.
asecond,athird又一，另一
ThisisthesecondtimeI’vemetyou.
Doitasecondtime.
练习
1.Peter’sjacketlookedjus