在英语学习中,准确表达顺序至关重要。无论是描述事件发生的先后,还是指示物品的位置,都需要用到序数词。掌握了序数词,能让你的表达更清晰、更地道。
什么是序数词?

序数词 (Ordinal Numbers) 表示顺序、次序的词,例如:第一、第二、第三等等。它们通常用于:
表示日期: May the first (5月1日) , December the twenty-fifth (12月25日)
表示顺序: the first place (第一名), the third floor (三楼)
表示排名: the second largest city (第二大城市), the tenth anniversary (十周年)
英语中常用的序数词:
为了帮助大家更好地学习,我们将1到12的序数词整理如下,包含了拼写、发音以及例句,方便大家学习和记忆。
| 基数词 | 序数词 | 缩写 | 例句 |
| :----: | :----: | :----: | :----: |
| one | first | 1st | This is my first time in London. |
| two | second | 2nd | He came in second in the race. |
| three | third | 3rd | Today is my daughter's third birthday. |
| four | fourth | 4th | We live on the fourth floor. |
| five | fifth | 5th | This is her fifth year at the school. |
| six | sixth | 6th | The sixth month of the year is June. |
| seven | seventh | 7th | I'll see you on the seventh of May. |
| eight | eighth | 8th | He's celebrating his eighth wedding anniversary. |
| nine | ninth | 9th | This is the ninth time I've told you! |
| ten | tenth | 10th | The company celebrated its tenth anniversary. |
| eleven | eleventh | 11th | It's my parents' eleventh wedding anniversary. |
| twelve | twelfth | 12th | December is the twelfth month of the year. |
学习小贴士:
大部分序数词是由相应的基数词加 -th 构成。
以-y 结尾的基数词,变为序数词时,要把-y 改为-ie,再加-th,例如:twentieth, thirtieth。
有些序数词的构成不规则,需要单独记忆,例如:first, second, third。
拓展: beyond the twelfth
当我们需要表达超过12的序数词时,通常直接使用基数词,例如:
第20页: page twenty
第100周年: the 100th anniversary
但是,在某些正式场合,例如法律文件中,可能会使用完整的序数词形式,例如:
第20页: the twentieth page
第100周年: the one hundredth anniversary
掌握序数词是英语学习的基础,希望这篇文章能帮助你更好地理解和使用它们。

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