這篇提到的序數，在講述日期、樓層、年級、世紀、
順序時會用到，一樣在開始之前要先熟讀英文數字的內容喔 !
1st first
2nd second
3rd third
4th fourth
5th fifth
第一 third
第二 second
第三 third
4到19都是原本的數字加上th，有加底線的是稍為有點變化的
4th fourth | 12th twelfth |
5th fifth | 13th thirteenth |
6th sixth | 14th fourteenth |
7th seventh | 15th fifteenth |
8th eighth | 16th sixteenth |
9th ninth | 17th seventeenth |
10th tenth | 18th eighteenth |
11th eleventh | 19th nineteenth |
基本上就是字尾加上一個 th [θ] 音 | |
20, 30 …到 90 都是原本的 twenty, thirty.. 去 y加 ieth，tieth 的念法為 [tɪəθ]
20th twentieth | 60th sixtieth |
30th thirtieth | 70th seventieth |
40th fortieth | 80th eightieth |
50th fiftieth | 90th ninetieth |
幾十幾的時候規則比較特別
21 twenty-one 前面不用改，只需要把後面改成序數就好，也就是one改成 first
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 |
#重點整理
講幾十的時候，原本的 twenty, thirty.. 去 y 加 ieth
講幾十幾的時候，前面不用改，只需要把後面改成序數就好
練習 | |
31st thirty-first | 63rd sixty-third |
48th forty-eighth | 76th seventy-sixth |
59th fifty-ninth | 82nd eighty-second |
樓層也是使用序數 | On the 序數 floor. |
On the first floor. | On the third floor. |
On the second floor. | On the forth floor. |
年級 | 年級有3種表達法 |
1. S beV in序數 grade. | She is in second grade. |
2. S beV in grade 數字. | She is in grade two. |
3. S beV a序數 grader. | She is a second grader. |
練習 | |
He is in third grade. | My daughter is in fifth grade. |
He is in grade three. | My daughter is in grade five. |
He is a third grader. | My daughter is a fifth grader. |
世紀 | in the 序數 century |
in the 21st century | in the 9th centur |
如果您還想要更多的【自然發音和基礎文法】 練習，可以加入我們的付費線上課程「發音&拼音課程」「基礎文法課程」，裡面有更詳細的教學解釋。
