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What Are the English Words for Numbers?

数字在英语中扮演着重要角色,无论是日常生活、商务交流还是学术研究,掌握数字的英文表达都必不可少,本文将详细介绍数字的英文单词,包括基数词、序数词以及常见用法,帮助读者全面理解并正确使用。

What Are the English Words for Numbers?-图1

基数词(Cardinal Numbers)

基数词用于表示数量或计数,是最基础的数字表达形式,以下是1到20的基数词及其拼写:

  • 1 – one
  • 2 – two
  • 3 – three
  • 4 – four
  • 5 – five
  • 6 – six
  • 7 – seven
  • 8 – eight
  • 9 – nine
  • 10 – ten
  • 11 – eleven
  • 12 – twelve
  • 13 – thirteen
  • 14 – fourteen
  • 15 – fifteen
  • 16 – sixteen
  • 17 – seventeen
  • 18 – eighteen
  • 19 – nineteen
  • 20 – twenty

20以上的数字遵循一定规律,

  • 21 – twenty-one
  • 30 – thirty
  • 40 – forty
  • 50 – fifty
  • 60 – sixty
  • 70 – seventy
  • 80 – eighty
  • 90 – ninety
  • 100 – one hundred

对于更大的数字,英语采用“千”(thousand)、“百万”(million)、“十亿”(billion)等单位:

  • 1,000 – one thousand
  • 10,000 – ten thousand
  • 100,000 – one hundred thousand
  • 1,000,000 – one million
  • 1,000,000,000 – one billion

序数词(Ordinal Numbers)

序数词用于表示顺序或排名,通常在基数词后加“-th”构成,但也有例外,以下是1到20的序数词:

  • 1st – first
  • 2nd – second
  • 3rd – third
  • 4th – fourth
  • 5th – fifth
  • 6th – sixth
  • 7th – seventh
  • 8th – eighth
  • 9th – ninth
  • 10th – tenth
  • 11th – eleventh
  • 12th – twelfth
  • 13th – thirteenth
  • 14th – fourteenth
  • 15th – fifteenth
  • 16th – sixteenth
  • 17th – seventeenth
  • 18th – eighteenth
  • 19th – nineteenth
  • 20th – twentieth

20以上的序数词同样遵循规律,

What Are the English Words for Numbers?-图2

  • 21st – twenty-first
  • 30th – thirtieth
  • 40th – fortieth
  • 50th – fiftieth
  • 60th – sixtieth
  • 70th – seventieth
  • 80th – eightieth
  • 90th – ninetieth
  • 100th – one hundredth

分数和小数的英文表达

分数(Fractions)

分数由分子(基数词)和分母(序数词)构成,分子大于1时,分母用复数形式:

  • 1/2 – one half
  • 1/3 – one third
  • 1/4 – one quarter(或 one fourth)
  • 2/3 – two thirds
  • 3/4 – three quarters(或 three fourths)
  • 1/10 – one tenth

小数(Decimals)

小数用“point”分隔整数和小数部分,每位数字单独读出:

  • 5 – zero point five
  • 25 – one point two five
  • 1416 – three point one four one six

数字的常见用法

电话号码

英语中电话号码通常逐位读出,数字“0”可读作“zero”或“oh”:

  • 123-456-7890 – one two three, four five six, seven eight nine zero(或 seven eight nine oh)

年份

年份通常分为两部分读出,但整千或整百的年份例外:

  • 1999 – nineteen ninety-nine
  • 2000 – two thousand
  • 2005 – two thousand and five
  • 2023 – twenty twenty-three

时间

时间表达分为12小时制和24小时制,常见读法如下:

What Are the English Words for Numbers?-图3

  • 3:00 – three o’clock
  • 3:15 – three fifteen(或 a quarter past three)
  • 3:30 – three thirty(或 half past three)
  • 3:45 – three forty-five(或 a quarter to four)

数字的特殊表达

罗马数字

罗马数字在特定场合仍在使用,例如钟表、书籍章节编号等:

  • I – 1
  • V – 5
  • X – 10
  • L – 50
  • C – 100
  • D – 500
  • M – 1000

货币表达

货币金额通常用“dollar”或“pound”等单位,小数点后数字单独读出:

  • $5.99 – five dollars and ninety-nine cents
  • £10.50 – ten pounds and fifty pence

数学符号

常见数学符号的英文表达:

  • – plus

  • – minus

    What Are the English Words for Numbers?-图4

  • × – times(或 multiplied by)
  • ÷ – divided by
  • = – equals

数字在英语中的文化差异

不同英语国家在数字表达上可能存在差异。

  • 英式英语中“billion”指“万亿”(1,000,000,000,000),而美式英语中“billion”指“十亿”(1,000,000,000)。
  • 英式英语常用“and”连接百位和十位,如“one hundred and one”,而美式英语可能省略“and”。

掌握这些差异有助于避免误解,提高交流准确性。

数字的英文单词看似简单,但实际应用涉及多种场景和规则,无论是学习、工作还是日常生活,准确使用数字表达都能提升沟通效率,希望本文能帮助读者全面理解数字的英文表达,并在实践中灵活运用。

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