2025年人教版英语中考专项复习---数词（含答案）

数词 一、数词核心考点精讲 1. 基数词与序数词 基数词 序数词 缩写 记忆技巧 1 (one) first 1st 特殊记忆：“第一要争气（first）” 2 (two) second 2nd 特殊记忆：“第二很二（second）” 3 (three) third 3rd 特殊记忆：“第三有三（third）” 4 (four) fourth 4th 规则：基数词 + th 5 (five) fifth 5th 口诀：“五（five）去ve变f加th” 8 (eight) eighth 8th 口诀：“八（eight）去t加h” 9 (nine) ninth 9th 口诀：“九（nine）去e加th” 12 (twelve) twelfth 12th 口诀：“ve变f加th” 20 (twenty) twentieth 20th 规则：y变ie + th（twenty→twentieth） 21 (twenty-one) twenty-first 21st 复合词：整十基数词 + 个位序数词 30 (thirty) thirtieth 30th 规则：y变ie + th 40 (forty) fortieth 40th 注意拼写：forty→fortieth（去y变ie） 100 (one hundred) one hundredth 100th 规则：基数词 + th 类型 规则与例词 记忆技巧 基数词 1-12独立记忆，13-19加-teen，20-90整十加-ty，21-99用连字符（如twenty-one） 口诀：“十几加teen，几十加ty，连字符连接几十几” 序数词 一般加-th，特殊变化：first, second, third, fifth, eighth, ninth, twelfth 口诀：“一、二、三特殊记，八去t，九去e，ve变f再加th，y变ie再加th” 序数词缩写 1st, 2nd, 3rd, 4th…（数字+最后两个字母） 联想：“1st像树干，2nd像鸭子，3rd像耳朵” 2. 分数、小数、百分数 类型 规则 例词/例句 分数 分子用基数词，分母用序数词，分子>1时分母加-s 1/3 → one-third；2/5 → two-fifths 小数 小数点读作“point”，每位数字单独读 3.14 → three point one four 百分数 数字 + percent 50% → fifty percent 易错点 分数中的连字符和复数形式 误写：two-third（正确：two-thirds） 记忆技巧： 分数口诀：“子基母序，分子大于1，分母加s！” 百分数公式：“数字 + percent = 百分数” 3. 时间与年代表达 表达方式 规则 例句 整点 数字 + o’clock 7:00 → seven o’clock 半点前 分钟 + past + 小时 6:15 → a quarter past six 半点后 60-分钟 + to + 下一小时 6:45 → a quarter to seven 年代 四位数分两部分读，加“s”表年代 1990s → the nineteen nineties 记忆技巧： 时间口诀：“半点前past，半点后to，一刻钟用quarter，半小时用half” 年代公式：“前两位+后两位+s，中间不加and” 二、提高练习 （一）单项选择 There are _____ days in a week. A. seven B. seventh C. the seven D. the seventh My sister is _____ to finish her homework. A. first B. the first C. one D. the one About _____ of the earth is covered by water. A. three quarter B. three quarters C. third quarters D. third quarter The train leaves at _____. A. two past half B. half past two C. two and half D. two to half The story happened in _____. A. 1990s B. the 1990s C. 1990’s D. the 1990s’ _____ people visited the museum last year. A. Two thousands B. Two thousand C. Thousands D. Thousand of December is the _____ month of the year. A. twelve B. twelveth C. twelfth D. twelf The boy is only _____. He can’t go to school. A. five years old B. five-year-old C. five-years-old D. five year old —What’s the date today —It’s _____. A. May 12th B. May the 12 C. 12 May D. the May 12 The price of the book is _____. A. twenty yuans B. twenty yuan C. yuans twenty D. yuan twenty （二）用所给词的正确形式填空 September is the _____ (nine) month of the year. About _____ (three-fourth ... ...