超全常用数学符号的英文表达方法.doc

超全常用数学符号的英文表达方法，赶紧学起来！1.Cardinals and Ordinals 基数和序数(1)100以内的数词罗马数字 阿拉伯数字读法 数码 读法I 1 one 1st the firstII 2 two 2nd the secondIII 3 three 3rd the thirdIV 4 four 4th the fourthV 5 five 5th the fifthVI 6 six 6th the sixthVII 7 seven 7th the seventhVIII 8 eight 8th the eighthIX 9 nine 9th the ninthX 10 ten 10th the tenthXI 11 eleven 11th the eleventhXII 12 twelve 12th the twelfthXIII 13 thirteen 13th the thirteenthXIV 14 fourteen 14th the fourteenthXV 15 fifteen 15th the fifteenthXVI 16 sixteen 16th the sixteenthXVII 17 seventeen 17th the seventeenthXVIII 18 eighteen 18th the eighteenthXIX 19 nineteen 19th the nineteenthXX 20 twenty 20th the twentiethXXI 21 twenty-one 21st the twenty-firstXXV 25 twenty-five 25th the twenty-fifthXXX 30 thirty 30th the thirtiethXL 40 forty 40th the fortiethL 50 fifty 50th the fiftiethLX 60 sixty 60th the sixtiethLXX 70 seventy 70th the seventiethLXXX 80 eighty 80th the eightiethXC 90 ninety 90th the ninetiethIC 99 ninety-nine 99th the ninety-ninthC 100 one hundred 100th the hundredthCII 102 a hundred 102nd the (one) hundredand two and second246 two hundred and forty-six751 seven hundred and fifty-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千亿 one hundred thousand million = one hundred billion万亿 one billion = one trillion2.Fractions 分数通常将分子读为基数，将分母读为序数。1/2 = a (or one) half1/3 = a (or one) third1/4 = a quarter or one fouth1/5 = a (or one) fifth2/3 = two thirds9/10 = nine tenths53/4 = five and three quarters15/64= fifteen over (or by) sixty-four15% = fifteen per cent4 = four per mill3.Decimals 小数0.4 = zero (or nought) point four.01 = point (or decimal) nought one12.34 = twelve point three four567.809 = five hundred and sixty-seven point eight nought nine30.45 = thirty point four five, five recurring0.3% = decimal three percent4.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) 267the sum (or total) is 267.(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.(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 fifteen60=0： Multiply six by nothing, and the result is nothing.(4)Division 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.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 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 sixty19- nineteen something1950s nineteen fifties 二十世纪五十年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-three1227 = one double two (or two two) seven0386 = O three eight six0096 = double O(or O O )nine six7000 = seven O double O = seven thousandNo.26= Number 26 第26号Room 201 = Room two O one 第201房间10 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 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 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 currency 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1.3s.6d. = one pound, three shillings (and) sixpence4/51/2(or4s.51/2d.) = four (shillings) and five pence halfpenny(2)U.S. currency1.20 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 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“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5431/2 = five 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.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9. 各类常用的运算符号+ plus加号；正号- minus减号；负号plus or minus正负号is multiplied by乘号is divided by除号is equal to等于号is not equal to不等于号is equivalent to全等于号is equal to or approximately equal to等于或约等于号is approximately equal to约等于号 is less than小于号 is more than大于号 is not less than 不小于号 is not more than 不大于号is less than or equal to小于或等于号is more than or equal to大于或等于号% per cent百分之per mill千分之infinity无限大号varies as与成比例(square) root平方根since; because因为hence所以equals, as (proportion)等于，成比例angle角semicircle半圆circle圆circumference圆周pi 圆周率triangle三角形perpendicular to垂直于union of并，合集intersection of 交，通集the integral of 的积分(sigma) summation of总和degree度minute分second秒Celsius system摄氏度open brace, open curly左花括号close brace, close curly右花括号(open parenthesis, open paren左圆括号)close parenthesis, close paren右圆括号() brakets/ parenthes