1、数学符号的英语读法1.Cardinals and Ordinals 基数和序数 (1)100 以内的数词 基数 序数 Roman Arabic Numerals Numerals 罗马数字 阿拉伯数字 读法 数码 读法 I 1 one 1st the first II 2 two 2nd the second III 3 three 3rd the third IV 4 four 4th the fourth V 5 five 5th the fifth VI 6 six 6th the sixth VII 7 seven 7th the seventh VIII 8 eight 8th th
2、e eighth IX 9 nine 9th the ninth X 10 ten 10th the tenth XI 11 eleven 11th the eleventh XII 12 twelve 12th the twelfth XIII 13 thirteen 13th the thirteenth XIV 14 fourteen 14th the fourteenth XV 15 fifteen 15th the fifteenth XVI 16 sixteen 16th the sixteenth XVII 17 seventeen 17th the seventeenth XV
3、III 18 eighteen 18th the eighteenth XIX 19 nineteen 19th the nineteenth XX 20 twenty 20th the twentieth XXI 21 twenty-one 21st the twenty-first XXV 25 twenty-five 25th the twenty-fifth XXX 30 thirty 30th the thirtieth XL 40 forty 40th the fortieth L 50 fifty 50th the fiftieth LX 60 sixty 60th the si
4、xtieth LXX 70 seventy 70th the seventieth LXXX 80 eighty 80th the eightieth XC 90 ninety 90th the ninetieth IC 99 ninety-nine 99th the ninety-ninth C 100 one hundred 100th the hundredth CII 102 a hundred 102nd the (one) hundred and two and second 246 two hundred and forty-six 751 seven hundred and f
5、ifty-one (2)1000 以上的数词 1,000 = one thousand 一千 10,000 = ten thousand 一万 100,000 = one hundred thousand 十万 1,000,000 = one million 一百万 10,000,000 = ten million 一千万 100,000,000=one hundred million 一亿 (3)十亿以上的大数，英美有不同的读法： 英国 美国 十亿 one thousand million = one billion 百亿 ten thousand million = ten billion
6、 千亿 one hundred thousand million = one hundred billion 万亿 one billion = one trillion 2.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 one fouth 1/5 = a (or one) fifth 2/3 = two thirds 9/10 = nine tenths 53/4 = five and three quarters 15/64= fifteen ov
7、er (or by) sixty-four 15% = fifteen per cent 4 = four per mill 3.Decimals 小数 0.4 = zero (or nought ) point four .01 = point (or decimal) nought one 12.34 = twelve point three four 567.809 = five hundred and sixty-seven point eight nought nine 30.45 = thirty point four five, five recurring 0.3% = dec
8、imal three percent 4.Mathematic Forms 数学式 (1) Addition 加法 1+2=3 One and two are three. 2+3=5 Two plus three equals five. 4+0=4 Four and nought is equal to four. 45+70+152=267 45,70 and 152 added are (or make) 267 the sum (or total) is 267. 演算时的读法： Three and seven are ten; I write(or I write down,or
9、I put down)a nought and carry one. Four and one that I carry are five, and eight make thirteen,and three sixteen; I write down six and carry one. One and one (that I carry) are two; I put down two.- The sum (or total, or the result of the addition) is two hundred and sixty. 37,80 and 143 added toget
10、her, and(or make) 260. (2)Subtraction 减法 9-4=5 Nine minus four equals (or is equal to) five. 15-7=8 Seven from fifteen leaves eight. 23,654-8,175=15,479 8,175 (take or subtracted) from 23,654 leaves 15,479. The difference (or The remainder) is 15,479. Nine from five wont go. 演算时的读法：Nought from nough
11、t (leaves) nought. One from one leaves nought (or nothing). Two from three (leaves) one. I cant take (or subtract) five from four; I must borrow ten; five from fourteen leaves nine.- The difference (or The remainder) is nine thousand one hundred. 5210 (take or substracted) from 14,310 leaves 9,100.
12、(3)Multiplication 乘法 10=0 One multiplied by nought equals nought. 11=1 Once one is one. 21=2 Twice one is two. 35=15 Three times five is fifteen 60=0 Multiply six by nothing, and the result is nothing. 演算时的读法: Five times nine (or Nine multiplied by five) are forty-five; I put down five and carry fou
13、r. Five times seven are thirty-five and four (that I carry) are thirty-nine; I write down nine and carry three. Five times six make thirty and three (that I carry) thirty-three; I put down thirty-three. Eight times nine (or Eight nine) are seven two; I write two and carry seven. Eight sevens make fi
14、fty-six and seven are sixty-three. I put down three and carry six. Eight sixes make forty-eight and six fifty-four; I write down fifty-four. I now add the partial results (or products) Five. Two and nine are eleven. Three and three are six and one are seven. Four and three make seven. Five. (4)Divis
15、ion 除法 93=3 Nine divided by three maks (or is equal to) three. 205=4 Five into twenty goes four times. 456723=198 余 13 23 into 4567 goes 198 times, and 13 remainder. The quctient is 198, and 13 remainder. 演算时的读法: Fifteen into thirteen wont go ; fifteen into one hundred and thirty-eight goes nine tim
16、es; nine times fifteen are one hundred and threty-five; one hundred and thirty-five from one hundred and thirty-eight leaves three; I bring down seven; fifteen into thirty-seven goes twice; twice fifteen are thirty; thirty from thirty-seven leaves seven. The (exact) quotient is ninety-two, and seven
17、 remainder; 15 into 1387 goes 92 times, and 7 remainder. 5.Time 时间 (1)Hours 钟点 2h.58“ = two hours 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.ei em 上午 8 时 30 分 the 6.05 p.m.train = the six (nought) five p.m.pi:em 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
18、如下： 0900 = 0 nine hunderd (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 oc =at five oclock 五点钟 (2)Date 日期 Oct.1 =October first 10 月 1 日 Oct.1st = October the first 10 月 1 日 Ist
19、Oct. 1949 = teh first 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 附注 联系日期前置词用 on. (3)Year 年份 684 B.C. =Six eighty-four B.C. bi:si: 公元前 684 年 1960 = nineteen sixty; nineteen hundred and sixty 19- nineteen something 1950s nineteen fifties 二十世纪五十年
20、代 附注 联系年份的前置词用 in. 6.Numbers 号码 (1)Telephones Numbers 电话号码 1023 = one O two three; ten twenty-three 1227 = one double two (or two two) seven 0386 = O three eight six 0096 = double O(or O O )nine six 7000 = seven O double O = seven thousand No.26= Number 26 第 26 号 Room 201 = Room two O one 第 201 房间 1
21、0 Changan Street = Ten Changan Street 长安街 10 号 (2)Writings 书籍作品 Vol.I = Volume one (or the first volume) 卷一 Chap.II= Chapter two (or the second chapter) 第 2 章 Page 3 = page Three (or the third page) 第 3 页 See pp.5-10 = See Pages five to ten 见第 5-10 页 Act V = Act five (or the fifth act) 第 5 幕 Hamlet
22、III 1:56 = Hamlet Act Three, Secene One.Line fifty-six 哈姆雷特第 3 幕第一场第 56 行 Matt.7:12 = Matthew, Chapter Seven, Verse Twelve 马可福音第七章第 12 节 Beethoven Op.49 = Beethoven Opus forty-nine 贝多芬作品第 49 号 4to = quarto 四本开 8vo = octavo 八本开 (3)Other 其他 World War I = World War One 第一次世界大战 World War II = World War
23、Two 第二次世界大战 Charles I= Charles the First 查理一世 Henry V = Henry the Fifth 亨利五世 Mr.- = Mr. Dash; Mr. So-and-so 某某先生 Mr.B - = Mr. B -Esq.,of -= the town of Blank Esquire of Blank University 某大学某某先生 the town of = the town of Blank 某某城 The result of the game was 3-0 比赛结果是三比零。 7.Money 货币 (1)British currenc
24、y 英币 6d. = six pence 六便士 1/2d. = a halfpenny 半便士 11/2d. = a peney halfpenny or three halfpeny or three halfpence 一便士半 1/4d. = a farthing 一个铜元 33/4d.= three pence three farghings 三便士三铜元 1s.6d.(or 1/6) = one (shilling) and six (pence) 一先令六便士 1.18 = (or1.18s.)= one pound eighteen (shillings) 一镑十八先令 1.3
25、s.6d. = one pound, three shillings (and) sixpence 4/51/2(or4s.51/2d.) = four (shillings) and five pence halfpenny (2)U.S. currency 1.20 dollar (and) twenty (cents) 美金一元二角 4.25 = four dollars twenty-five cents 美金四元二角五分 (3)Soviet currency 前苏联币 6 Rb. 15 = six roubles fifteen kopecks 六卢布十五戈比 (4) German
26、currency 德币 1 m. 60 = one mark sixty pfennig -马克六十芬尼 (5)French currency 法国币 1 fr.30 = one franc. thirty (centimes) -法郎三十生丁 0 fr.15 = fifteen centimes 十五生丁 (6) Chinese Peoples Currency 人民币 1.50 = one yuan and a half 一元五角 JMP 10.35 = JMP ten yuan thirty-five (fen) 人民币十元三角五分 附注：yuan 单复数没有变化： 也可作为日本本位币“
27、圆”的符号。8. Weight and Measures 度量衡 (1) length, area, and volume 长度、面积和容积 3 in = three inches 三英寸 15 ft.5 in = fifteen foot five (inches) 十五英尺五英寸 附注 尤其在 inches 省略时, ft.读作 foot;如果 inches 也念出来，ft 可以读作 fett. 186 5/1“= eighteen foot six and a fifth (inches) 108feet= ten by eight feet 十英尺长，八英尺宽 5“431/2 = fi
28、ve inches by four by three and a half 长五英寸，宽四英寸，高三英寸半 附注 以上二例中，乘号表示面积或容积。 (2)Weight 重量 12 dr. 23 gr.= Twelve drams twenty-three grains 十二打兰二十三喱 10 oz. 4 dr. = Ten ounces four drams 十盎司打兰 (3)Capacity 容量 3 gi. = three gills 三及耳 1 qt. 1 pt = one quart one pint 一夸脱一品脱 附注 qt.,pt. 的复数是 qts.,pts.,也可以不加 s.
29、20 gal. 5 qt. =Twenty gallons five quarts 二十加仑五夸脱 5 bu. 3 pk. = Five bushels three pecks 五蒲式耳三配克符号的英文读法 period 句号 is approximately equal to 约等于号 ， comma 逗号 is less than 小于号 ： colon 冒号 is more than 大于号 ； semicolon 分号 is not less than 不小于号 ！ exclamation 惊叹号 is not more than 不大于号 ？ question mark 问号 is
30、less than or equal to 小于或等于号 hyphen 连字符 is more than or equal to 大于或等于号 apostrophe 省略号 ；所有格符号 per cent 百分之 - dash 破折号 per mill 千分之 single quotation marks 单引号 infinity 无限大号 double quotation marks 双引号 varies as 与成比例 ( ) parentheses 圆括号 (square) root 平方根 square brackets 方括号 since; because 因为 French quo
31、tes 法文引号 ;书名号 hence 所以 . ellipsis 省略号 equals, as (proportion) 等于，成比例 tandem colon 双点号 angle 角 ditto 双点号 semicircle 半圆 parallel 双线号 circle 圆 virgule 斜线号 circumference 圆周 ampersand = and pi 圆周率 swung dash 代字号 triangle 三角形 section; division 分节号 perpendicular to 垂直于 arrow 箭号；参见号 union of 并，合集 plus 加号；正号
32、 intersection of 交，通集 minus 减号；负号 the integral of 的积分 plus or minus 正负号 ( sigma) summation of 总和 is multiplied by 乘号 degree 度 is divided by 除号 minute 分 is equal to 等于号 second 秒 is not equal to 不等于号 number 号 is equivalent to 全等于号 Celsius system 摄氏度 is equal to or approximately equal to 等于或约等于号 at 单价R
33、 R prime R” R double prime, R second prime R1 R sub one 100 C one hundred degrees Centigrade + plus; positive - minus; negative multiplied by; times divided by plus or minus = is equal to; equals is identically equal to is approximately equal to ( ) round brackets; parentheses square brackets braces
34、 ab a is much greater than b a b a is greater than or equal to b a b a varies directly as b lognX logX to the base n the cubic root of x the nth root of x x2 x square, x squared, the square of x Xn X to n factors; the nth power of x; x to the power n x -8 x to the minus eighth power x the absolute v
35、alue of x the mean value of X the sum of the terms indicated; summation of D x or d x the increment of x dx differential x dy/dx the first derivative of y with respect to x integral infinity 1/2 a half; one half 2/3 two thirds 5/123 five over a hundred and twenty-three eight and three over fourths;
36、eight and three quarters 0.01 O point O one; zero point zero one; nought point nought one 6 % 6 percent 3 3 per mille 2 : 3 the ratio of two to three r=xd r equals x multiplied by d 5 2=10 five times two equals ten x3/8=y2 x raised to the third power divided by eight equals y squared (a+b-c d)/e=f a plus b minus c multiplied by d, all divided by e equals f y = (Wt-W)/x y equals W sub t minus W over x
