- 11:eleven → eleventh
- 12:twelve → twelfth
- 13:thirteen → thirteenth
- 14:fourteen → fourteenth
- 15:fifteen → fifteenth
- 16:sixteen → sixteenth
- 17:seventeen → seventeenth
- 18:eighteen → eighteenth
- 19:nineteen → nineteenth 三、20-99的基数词和序数词
1. 整十数20,30,...,90
基数词以“-ty”,序数词去“y”加“-ieth”:- 20:twenty → twentieth
- 30:thirty → thirtieth
- 40:forty → fortieth
- 50:fifty → fiftieth
- 60:sixty → sixtieth
- 70:seventy → seventieth
- 80:eighty → eightieth
- 90:ninety → ninetieth
- 30:thirty → thirtieth
2. 非整十数21-29,31-39,...,91-99
基数词为“整十数+连字符+个位基数词”,序数词为“整十序数词+个位序数词”:- 21:twenty-one → twentieth-firsttwenty-first
- 22:twenty-two → twentieth-secondtwenty-second
- 23:twenty-three → twentieth-thirdtwenty-third
- 25:twenty-five → twentieth-fifthtwenty-fifth
- 28:twenty-eight → twentieth-eighthtwenty-eighth
- 29:twenty-nine → twentieth-ninthtwenty-ninth
- 31:thirty-one → thirtieth-firstthirty-first
- ...以此类推,如42:forty-two → forty-second;53:fifty-three → fifty-third等
四、100的基数词和序数词
- 基数词:one hundred
- 序数词:one hundredth
核心规律
1. 1-3序数词全特殊:first, second, third; 2. 4-19除12twelfth外,均为基数词加“-th”; 3. 整十数序数词:去“y”加“-ieth”如twentieth, thirtieth; 4. 非整十数序数词:整十序数词+个位序数词twentieth-first。
基数词和序数词1到100有对照表吗?
基数词和序数词1到100对照表
基数词表示数量,序数词表示顺序。以下是1到100的基数词与序数词对照及构成规则:
一、1-10的基数词和序数词
| 基数词 | 序数词 |
|--------|--------|
| one | first |
| two | second |
| three | third |
| four | fourth |
| five | fifth |
| six | sixth |
| seven | seventh |
| eight | eighth |
| nine | ninth |
| ten | tenth |
二、11-19的基数词和序数词
11-19的基数词以“-teen”,序数词在基数词后加“-th”,但12特殊:
