【1到100序数词】在英语中，序数词是用来表示顺序或位置的词，如“第一”、“第二”等。掌握1到100的序数词对于学习英语的人来说非常重要，尤其是在写作、阅读和日常交流中。以下是对1到100序数词的总结，并附上一份清晰的表格供参考。
一、序数词的基本规则
1. 基本序数词：
- 1st → first
- 2nd → second
- 3rd → third
- 4th → fourth
- 5th → fifth
- 6th → sixth
- 7th → seventh
- 8th → eighth
- 9th → ninth
- 10th → tenth
2. 十位数的序数词：
- 20th → twentieth
- 30th → thirtieth
- 40th → fortieth
- 50th → fiftieth
- 60th → sixtieth
- 70th → seventieth
- 80th → eightieth
- 90th → ninetieth
3. 其他数字的序数词：
- 11th → eleventh
- 12th → twelfth
- 13th → thirteenth
- 14th → fourteenth
- 15th → fifteenth
- 16th → sixteenth
- 17th → seventeenth
- 18th → eighteenth
- 19th → nineteenth
- 21st → twenty-first
- 22nd → twenty-second
- 23rd → twenty-third
- 24th → twenty-fourth
- 25th → twenty-fifth
- 26th → twenty-sixth
- 27th → twenty-seventh
- 28th → twenty-eighth
- 29th → twenty-ninth
- 31st → thirty-first
- 32nd → thirty-second
- 33rd → thirty-third
- 34th → thirty-fourth
- 35th → thirty-fifth
- 36th → thirty-sixth
- 37th → thirty-seventh
- 38th → thirty-eighth
- 39th → thirty-ninth
- 以此类推，直到100th → one hundredth。
二、1到100序数词表
| 数字 | 序数词 | 数字 | 序数词 |
| 1 | first | 51 | fifty-first |
| 2 | second | 52 | fifty-second |
| 3 | third | 53 | fifty-third |
| 4 | fourth | 54 | fifty-fourth |
| 5 | fifth | 55 | fifty-fifth |
| 6 | sixth | 56 | fifty-sixth |
| 7 | seventh | 57 | fifty-seventh |
| 8 | eighth | 58 | fifty-eighth |
| 9 | ninth | 59 | fifty-ninth |
| 10 | tenth | 60 | sixtieth |
| 11 | eleventh | 61 | sixty-first |
| 12 | twelfth | 62 | sixty-second |
| 13 | thirteenth | 63 | sixty-third |
| 14 | fourteenth | 64 | sixty-fourth |
| 15 | fifteenth | 65 | sixty-fifth |
| 16 | sixteenth | 66 | sixty-sixth |
| 17 | seventeenth | 67 | sixty-seventh |
| 18 | eighteenth | 68 | sixty-eighth |
| 19 | nineteenth | 69 | sixty-ninth |
| 20 | twentieth | 70 | seventieth |
| 21 | twenty-first | 71 | seventy-first |
| 22 | twenty-second | 72 | seventy-second |
| 23 | twenty-third | 73 | seventy-third |
| 24 | twenty-fourth | 74 | seventy-fourth |
| 25 | twenty-fifth | 75 | seventy-fifth |
| 26 | twenty-sixth | 76 | seventy-sixth |
| 27 | twenty-seventh | 77 | seventy-seventh |
| 28 | twenty-eighth | 78 | seventy-eighth |
| 29 | twenty-ninth | 79 | seventy-ninth |
| 30 | thirtieth | 80 | eightieth |
| 31 | thirty-first | 81 | eighty-first |
| 32 | thirty-second | 82 | eighty-second |
| 33 | thirty-third | 83 | eighty-third |
| 34 | thirty-fourth | 84 | eighty-fourth |
| 35 | thirty-fifth | 85 | eighty-fifth |
| 36 | thirty-sixth | 86 | eighty-sixth |
| 37 | thirty-seventh | 87 | eighty-seventh |
| 38 | thirty-eighth | 88 | eighty-eighth |
| 39 | thirty-ninth | 89 | eighty-ninth |
| 40 | fortieth | 90 | ninetieth |
| 41 | forty-first | 91 | ninety-first |
| 42 | forty-second | 92 | ninety-second |
| 43 | forty-third | 93 | ninety-third |
| 44 | forty-fourth | 94 | ninety-fourth |
| 45 | forty-fifth | 95 | ninety-fifth |
| 46 | forty-sixth | 96 | ninety-sixth |
| 47 | forty-seventh | 97 | ninety-seventh |
| 48 | forty-eighth | 98 | ninety-eighth |
| 49 | forty-ninth | 99 | ninety-ninth |
| 50 | fiftieth | 100 | one hundredth |
三、小结
掌握1到100的序数词是英语学习中的基础内容之一。虽然大部分序数词的变化有一定的规律，但也有例外情况，例如1st、2nd、3rd等需要特别记忆。通过不断练习和使用，可以更自然地将这些序数词融入到语言表达中。希望本表能帮助你更好地理解和运用英语中的序数词。
