
1到100的英语单词按照基数词(表示数量)和序数词(表示顺序)的分类,具体如下:
一、基数词(1-100)
1-10:one,two,three,four,five,six,seven,eight,nine,ten
11-19:eleven,twelve,thirteen,fourteen,fifteen,sixteen,seventeen,eighteen,nineteen
20-90(整十数字后加-one至-nine表示21-99):
- 20:twenty
- 21-29:twenty-one,twenty-two,twenty-three,twenty-four,twenty-five,twenty-six,twenty-seven,twenty-eight,twenty-nine
- 30:thirty;31-39同理,在thirty后依次加-one至-nine
- 40:forty;41-49同理,在forty后依次加-one至-nine
- 50:fifty;51-59同理,在fifty后依次加-one至-nine
- 60:sixty;61-69同理,在sixty后依次加-one至-nine
- 70:seventy;71-79同理,在seventy后依次加-one至-nine
- 80:eighty;81-89同理,在eighty后依次加-one至-nine
- 90:ninety;91-99同理,在ninety后依次加-one至-nine
100:one hundred(或简写为a hundred)
二、序数词(1st-100th)
1-10:first(1st),second(2nd),third(3rd),fourth(4th),fifth(5th),sixth(6th),seventh(7th),eighth(8th),ninth(9th),tenth(10th)
11-19:eleventh(11th),twelfth(12th),thirteenth(13th),fourteenth(14th),fifteenth(15th),sixteenth(16th),seventeenth(17th),eighteenth(18th),nineteenth(19th)
20-90(整十数字的序数词形式后加-one至-nine表示21st-99th,注意其中20th、30th、40th、50th、80th为特殊形式,其余如60th、70th、90th在整十后加-th):
- 20th:twentieth
- 21st-29th:twenty-first至twenty-ninth
- 30th:thirtieth;31st-39th同理,在thirtieth后依次加-first至-ninth,并省略末尾的e再加-th(但thirty-first等词为特殊形式,需直接记忆)
- 40th:fortieth;41st-49th同理,在fortieth后加-first至-ninth并改y为i再加-eth(但注意这些词的实际拼写,如forty-first等,并非简单替换y为i再加-eth,而需直接记忆)
- 50th:fiftieth;51st-59th同理,在fiftieth后加-one至-nine并改y为i(但此处y并不出现,直接加-first至-ninth并改eth为tieth的形式,实际拼写需直接记忆)
- 注意:60th为sixtieth,70th为seventieth,80th为eightieth,均遵循在整十后加-th的规则(但为特殊形式,需直接记忆)
- 90th:ninetieth(特殊形式,需直接记忆)
100th:(one)hundredth(或简写为100th,但通常不省略前面的one)
请注意,序数词的缩写形式中,1st、2nd、3rd为特殊形式,其余均是在阿拉伯数字后加上th。同时,在实际应用中,序数词前通常需要加定冠词the(但在某些习惯用法或固定搭配中可省略)。
