一、Number 数字
106: one million
109: one billion (orone thousand million)
1012: one trillion (orone million million)
1015: onequadrillion(or one thousand million million)
1018: one quintillion(or one million million million)
123,456,789: one hundred and twenty threemillion, four hundred and fifty-six thousand, seven hundred and eighty-nine
12,345,678,900,000:twelve trillion, three hundred and forty five billion, six hundred andseventy-eight million, nine hundred thousand
-18: minus eighteen
二、Fractions 分数
通常将分子读为基数,将分母读为序数。
1/2: a (or one) half
1/3: a (or one) third
1/4: a quarter or onefourth
1/5: a (or one) fifth
2/3: two thirds, twoover three, or two by three
9/10: nine tenths, nineover ten, or nine by ten
53/4: five and threequarters
15/64: fifteen over (orby) sixty-four
15%: fifteen per cent
4‰: four per mill (or mil)
三、Decimals 小数
0.4: zero (or naught)point four
.01: point (ordecimal) naught (or oh) one
12.34: twelve pointthree four
567.809: five hundred andsixty-seven point eight naught (or oh) nine
30.45: thirty point fourfive,
0.3333333…..: pointthree repeating (or recurring)
0.3%: point (ordecimal) three percent
四、Mathematic Forms 数学式
(4-1) Addition 加法
1+2=3: One and two arethree.
2+3=5: Two plus threeequals five.
4+0=4: Four and naughtis equal to four.
45+70+152=267: 45, 70 and 152added are (or make) 267
the sum (or total) is 267.
(4-2) Subtraction 减法
9-4=5: Nine minus fourequals (or is equal to) five.
15-7=8: Seven fromfifteen leaves eight.
23,654-8,175=15,479: 8,175(take or subtracted) from 23,654 leaves 15,479.
Thedifference (or The remainder) is 15,479.
(4-3) Multiplication 乘法
1×0=0: One multiplied bynaught equals naught.
1×1=1: Once one is one.
2×1=2: Twice one is two.
3×5=15: Three times fiveis fifteen
6×0=0: Multiply six bynothing, and the result is nothing.
(4-4) Division 除法
9÷3=3: Nine divided bythree makes (or is equal to) three.
20÷5=4: Five into twentygoes four times.
4567÷23=198 余 13: 23 into 4567 goes198 times, and 13 remainder.
Thequotient is 198, and 13 remainder.
五、Power 幂次方
bn 当中, b 被称为底数 (base),n 被称为指数 (power orexponent)
bn: the nth power of b 或 b to the nth power.
a×107: a times the seventh power of ten.
b 的平方: b square or bsquared
b 的立方: b cube or bcubed
b 的4次方: b to the fourth
b 的-1次方: b to the minus one
六、Time 时间
(6-1) Hours 钟点
2h.5'8": twohours five minutes eight seconds 2小时5分8秒
6.18: six eighteen 6时18分
8.30 a.m.: eight thirty a.m. 上午8时30分
the 6.05 p.m. train: the six(naught) five p.m. train 下午6时零5分列车
又二十四小时混合制的写法和读法如下:
0900: 0 nine hundred (上午)9时
0910: 0 nine ten (上午)9时10分
1300: thirteen hundred 13时(下午1时)
1525: fifteen twenty-five 15时25分(下午3时25分)
2000: twenty hundred 20时(下午8时)
at 5 o'clock: at fiveo'clock 五点钟
(6-2) Date 日期
Oct.1: October first 10月1日
Oct.1st: Octoberthe first 10月1日
1st Oct. 1949: thefirst of October, nineteen forty-nine 1949年10月1日
3/5: [英] May (the) third 5月3日;[美]March fifth 3月5日
684 B.C.: Sixeighty-four B.C. 公元前684年
106 A.D: one oh six A.D. 公元106年
1960: nineteen sixty; nineteen hundred and sixty
19-: nineteen something
1950's: nineteenfifties 二十世纪五十年代
60's: sixties 本世纪60年代
1770年代初期: in theearly 1770's
20世纪末: in the late20th century
11世纪中叶: in the mid11th century
七、Phone and Room Numbers 电话及房间号码
2303-9047: two three zero(or oh) three, nine zero (or oh) four seven
3366-3662: three three sixsix, three six six two
或 doublethree double six, three double six two
room 137: room one three seven
车牌号码,身分证号码,以及各种编号的读法皆类似