英语数词介绍英语版PPT
OverviewEnglish numerals are the system of numbers used in the English langua...
OverviewEnglish numerals are the system of numbers used in the English language to count, measure, and represent quantities. They are based on the decimal system, meaning they are structured around the number 10. English numerals are both spoken and written, with each system having its own unique rules and conventions.Spoken NumeralsIn spoken English, numerals are used to count objects or to indicate quantities. They follow a specific order and pronunciation:Ones1 (one), 2 (two), 3 (three), 4 (four), 5 (five), 6 (six), 7 (seven), 8 (eight), 9 (nine)Teens10 (ten), 11 (eleven), 12 (twelve), 13 (thirteen), 14 (fourteen), 15 (fifteen), 16 (sixteen), 17 (seventeen), 18 (eighteen), 19 (nineteen)Tens20 (twenty), 30 (thirty), 40 (forty), 50 (fifty), 60 (sixty), 70 (seventy), 80 (eighty), 90 (ninety)Hundreds100 (one hundred), 200 (two hundred), 300 (three hundred), etcThousands1,000 (one thousand), 2,000 (two thousand), 3,000 (three thousand), etcMillions and Beyond1,000,000 (one million), 1,000,000,000 (one billion), etcNote that the pronunciation of certain numerals changes depending on their position within a number. For example, "one" becomes "a" or "an" when preceding a vowel sound, and "two" becomes "too" or "to" in certain contexts.Written NumeralsIn written English, numerals can be expressed using words or digits.Word NumeralsWord numerals are the full written forms of numbers, such as "one," "two," "three," etc. They are used primarily in narrative writing or when a more formal or descriptive approach is desired. For example:"I have three apples.""Theprice is two hundred dollars."Digit NumeralsDigit numerals are the abbreviations of word numerals, consisting of the digits 0-9. They are used in most contexts where brevity or efficiency is important, such as in lists, tables, or mathematical equations. For example:"3 apples""$200"When writing larger numbers, digit numerals are grouped in threes to improve readability. This is known as comma notation or thousands separators. For example:1000 (one thousand)1234,567 (one million, two hundred thirty-four thousand, five hundred sixty-seven)ConclusionEnglish numerals are a fundamental part of the language, enabling us to count, measure, and communicate quantities effectively. Spoken numerals follow a specific pronunciation order, while written numerals can be expressed using words or digits, depending on the context. Understanding the rules and conventions of English numerals is essential for accurate and effective communication.
