【1到100的序数词是什么】在英语中，序数词用于表示顺序或排名，如“第一”、“第二”等。掌握1到100的序数词对于学习英语语法和日常交流非常重要。以下是1到100的序数词的总结与表格展示。
一、序数词的基本规则
- 1st（第一）
- 2nd（第二）
- 3rd（第三）
- 4th（第四）
- 5th（第五）
- 6th（第六）
- 7th（第七）
- 8th（第八）
- 9th（第九）
- 10th（第十）
从11开始，大部分序数词以“-th”结尾，但有几个例外：
- 11th（第十一）
- 12th（第十二）
- 13th（第十三）
- 14th（第十四）
- 15th（第十五）
- 16th（第十六）
- 17th（第十七）
- 18th（第十八）
- 19th（第十九）
- 20th（第二十）
从21开始，序数词通常由“基数词 + th”构成，但要注意以下情况：
- 21st（第二十一）
- 22nd（第二十二）
- 23rd（第二十三）
- 24th（第二十四）
- 25th（第二十五）
- 26th（第二十六）
- 27th（第二十七）
- 28th（第二十八）
- 29th（第二十九）
- 30th（第三十）
以此类推，直到100。
二、1到100的序数词表
| 序号 | 基数词 | 序数词 |
| 1 | one | 1st |
| 2 | two | 2nd |
| 3 | three | 3rd |
| 4 | four | 4th |
| 5 | five | 5th |
| 6 | six | 6th |
| 7 | seven | 7th |
| 8 | eight | 8th |
| 9 | nine | 9th |
| 10 | ten | 10th |
| 11 | eleven | 11th |
| 12 | twelve | 12th |
| 13 | thirteen | 13th |
| 14 | fourteen | 14th |
| 15 | fifteen | 15th |
| 16 | sixteen | 16th |
| 17 | seventeen | 17th |
| 18 | eighteen | 18th |
| 19 | nineteen | 19th |
| 20 | twenty | 20th |
| 21 | twenty-one | 21st |
| 22 | twenty-two | 22nd |
| 23 | twenty-three | 23rd |
| 24 | twenty-four | 24th |
| 25 | twenty-five | 25th |
| 26 | twenty-six | 26th |
| 27 | twenty-seven | 27th |
| 28 | twenty-eight | 28th |
| 29 | twenty-nine | 29th |
| 30 | thirty | 30th |
| 31 | thirty-one | 31st |
| 32 | thirty-two | 32nd |
| 33 | thirty-three | 33rd |
| 34 | thirty-four | 34th |
| 35 | thirty-five | 35th |
| 36 | thirty-six | 36th |
| 37 | thirty-seven | 37th |
| 38 | thirty-eight | 38th |
| 39 | thirty-nine | 39th |
| 40 | forty | 40th |
| 41 | forty-one | 41st |
| 42 | forty-two | 42nd |
| 43 | forty-three | 43rd |
| 44 | forty-four | 44th |
| 45 | forty-five | 45th |
| 46 | forty-six | 46th |
| 47 | forty-seven | 47th |
| 48 | forty-eight | 48th |
| 49 | forty-nine | 49th |
| 50 | fifty | 50th |
| 51 | fifty-one | 51st |
| 52 | fifty-two | 52nd |
| 53 | fifty-three | 53rd |
| 54 | fifty-four | 54th |
| 55 | fifty-five | 55th |
| 56 | fifty-six | 56th |
| 57 | fifty-seven | 57th |
| 58 | fifty-eight | 58th |
| 59 | fifty-nine | 59th |
| 60 | sixty | 60th |
| 61 | sixty-one | 61st |
| 62 | sixty-two | 62nd |
| 63 | sixty-three | 63rd |
| 64 | sixty-four | 64th |
| 65 | sixty-five | 65th |
| 66 | sixty-six | 66th |
| 67 | sixty-seven | 67th |
| 68 | sixty-eight | 68th |
| 69 | sixty-nine | 69th |
| 70 | seventy | 70th |
| 71 | seventy-one | 71st |
| 72 | seventy-two | 72nd |
| 73 | seventy-three | 73rd |
| 74 | seventy-four | 74th |
| 75 | seventy-five | 75th |
| 76 | seventy-six | 76th |
| 77 | seventy-seven | 77th |
| 78 | seventy-eight | 78th |
| 79 | seventy-nine | 79th |
| 80 | eighty | 80th |
| 81 | eighty-one | 81st |
| 82 | eighty-two | 82nd |
| 83 | eighty-three | 83rd |
| 84 | eighty-four | 84th |
| 85 | eighty-five | 85th |
| 86 | eighty-six | 86th |
| 87 | eighty-seven | 87th |
| 88 | eighty-eight | 88th |
| 89 | eighty-nine | 89th |
| 90 | ninety | 90th |
| 91 | ninety-one | 91st |
| 92 | ninety-two | 92nd |
| 93 | ninety-three | 93rd |
| 94 | ninety-four | 94th |
| 95 | ninety-five | 95th |
| 96 | ninety-six | 96th |
| 97 | ninety-seven | 97th |
| 98 | ninety-eight | 98th |
| 99 | ninety-nine | 99th |
| 100 | hundred | 100th |
三、小结
1到100的序数词虽然数量较多，但遵循一定的规律。除了1st、2nd、3rd这些特殊形式外，其余多数以“-th”结尾。掌握这些序数词有助于提高英语表达能力，尤其在写作和正式场合中更为常见。通过记忆和练习，可以轻松掌握这一部分知识。