基數詞31怎麼寫

one first two second three.third four.fourth five.fifth six.sixth seven.seventh eight.eighth nine.ninth ten.tenth eleven.eleventh twelve.twelfth thirteen.thirteenth fourteen.fourteenth fifteen.fifteenth sixteen.sixteenth seventeen.seventeenth eighteen.eighteenth nineteen.nineteenth twenty.twentieth twenty-one.twenty-first twenty-two.twenty-second twenty-three.twenty-third twenty-four.twenty-fourth twenty-five.twenty-fifth twenty-six twenty-sixth twenty-seven.twenty-seventh 虎琺港貉蕃股歌癱攻凱twenty-eight.twenty-eighth twenty-nine.twenty-ninth thirty.thirtieth thirty-one thirty-first。

1-100的序數詞分為四個類。

1、第一類

first (1st) 第一

second (2nd) 第二

third (3rd) 第三

（在括號裏的是縮寫形式，均在阿拉伯數字後面加上相應序數詞的最後兩個字母構成，以下各類與此相同。）這類序數詞只有三個，在整個序數詞裏面是特殊的，就和第一類基數詞一樣，需要逐個地硬記下來。

2、第二類：

fourth (4th) 第四

fifth (5th) 第五

sixth (6th) 第六

seventh (7th) 第七

eighth (8th) 第八

ninth (9th) 第九

tenth (10th) 第十

eleventh (11th) 第十一

twelfth (12th) 第十二

thirteenth (13th) 第十三

fourteenth (14th) 第十四

fifteenth (15th) 第十五

sixteenth (16th) 第十六

seventeenth (17th) 第十七

eighteenth (18th) 第十八

nineteenth (19th) 第十九

這一類序數詞共有十六個。均在相應的基數詞後面加上後綴-th構成。要注意其中fifth、eighth、ninth、twelth四個詞的拼法。

3、第三類：

twentieth (20th) 第二十

thirtieth (30th) 第三十

fortieth (40th) 第四十

fiftieth (50th) 第五十

sixtieth (60th) 第六十

seventieth (70th) 第七十

eightieth (80th) 第八十

ninetieth (90th) 第九十

這一類全是十位整數的序數詞，共八個。它們的構成方法是：先將相應的十位整數的基數詞詞尾-ty中的y改成i，然後在加上後綴-eth。

4、第四類：

thirty-first (31th) 第三十一

sixty-second (62nd) 第六十二

eighty-seventh (87th) 第八十七

ninety-eighth (98th) 第九十八

這類表示“第幾十幾”的序數詞，跟表示“幾十幾”的基數詞一樣簡單。在構成方法上均由基數詞“幾十幾”變化而來，十位數不變，僅把個位上的基數詞變成序數詞就行了。

基數詞+序數詞：one[基數詞].first〔序數詞〕 two.second three.third four.fourth five.fifth six.sixth seven.seventh eight.eighth nine.ninth ten.tenth eleven.eleventh twelve.twelfth thirteen.thirteenth fourteen.fourteenth fifteen.fifteenth sixteen.sixteenth seventeen.seventeenth eighteen.eighteenth nineteen.nineteenth twenty.twentieth twenty-one.twenty-first twenty-two.twenty-second twenty-three.twenty-third twenty-four.twenty-fourth twenty-five.twenty-fifth twenty-six twenty-sixth twenty-seven.twenty-seventh twenty-eight.twenty-eighth twenty-nine.twenty-ninth thirty.thirtieth thirty-one thirty-first

基數詞變序數詞的規律是一般直接+th。 ve結尾的變f再加th

1到31的序述詞和基數詞分別是

序述詞：

英語序數詞1--31

first(1st)第一

second(2nd)第二

third(3rd)第三

fourth(4th)第四

fifth(5th)第五

sixth(6th)第六

seventh(7th)第七

eighth(8th)第八

ninth(9th)第九

tenth(10th)第十

eleventh(11th)第十一

twelfth(12th)第十二

thirteenth(13th)第十三

fourteenth(14th)第十四

fifteenth(15th)第十五

sixteenth(16th)第十六

seventeenth(17th)第十七

eighteenth(18th)第十八

nineteenth(19th)第十九

twentieth(20th)第二十

twenty-first(21st)第二十一

twenty-seconddierer(22nd)第二十二

twenty-third(23rd)第二十三

twenty-fourth(24th)第二十四

twenty-fifth(25th)第二十五

twenty-sixth(26th)第二十六

twenty-seventh(27th)第二十七

twenty-eighth(28th)第二十八

twenty-ninth(29th)第二十九

thirtieth(30th)第三十

thirty=first(31st)第三十一

基數詞：

one.first

two.second

three.third

four.fourth

five.fifth

six.sixth

seven.seventh

eight.eighth

nine.ninth

ten.tenth

eleven.eleventh

twelve.twelfth

thirteen.thirteenth

fourteen.fourteenth

fifteen.fifteenth

sixteen.sixteenth

seventeen.seventeenth

eighteen.eighteenth

nineteen.nineteenth

twenty.twentieth

twenty-one.twenty-first

twenty-two.twenty-second

twenty-three.twenty-third

twenty-four.twenty-fourth

twenty-five.twenty-fifth

twenty-sixtwenty-sixth

twenty-seven.twenty-seventh

twenty-eight.twenty-eighth

twenty-nine.twenty-ninth

thirty.thirtieth

thirty-onethirty-first

one two three four five six seven eight nine ten eleven twelve thirteen foueteen fifteen sixteen seventeen eightteen ninteen twenty twenty-one twenty-two twenty-three twenty-four twenty-five twenty-six twenty-seven twenty-eight twenty-nine thirty

thirty-one

1 one fist2 two second3 three third 4 four fourth5 five fifth6 six sixth7 seven seventh8 eight eighth9 nine ninth10 ten tenth11 eleven eleventh12 twelve twelfth 13 thirteen thirteenth14 fourteen fourteenth15 fifteen fifteenth16 sixteen sixteenth17 seventeen seventeenth18 eighteen eighteenth19 ninteen ninteentstrong0 twenty twentietstrong1 twenty-one twenty-first…………以此類推30 thirty thirtieth31 thirty-one thirty-first。

one 1 two 2 three 3 four 4 five 5 six 6 seven 7 eight 8 nine 9 ten 10

eleven 11 twelve 12 thirteen 13 fourteen 14 fifteen 15 sixteen 16 seventeen 17 eighteen 18 nineteen 19 twenty 20 thirty 30 thirty-two 32

forty 40 forty-five 45 fifty 50 fifty-six 56 sixty 60 seventy 70 eighty 80 ninety 90 ninety-one 91

1 one-first 2 two-second 3 three- third 4 four- fourth 5 five-fifth 6 six-sixth 7 seven-seventh 8 eight-eighth 9 nine-ninth 10 ten- tenth 11 eleven- eleventh 12 twelve-twelfth 13 thirteen-thirteenth 14 fourteen-fourteenth 15 fifteen-fifteenth 16 sixteen-sixteenth 17 seventeen-seventeenth 18 eighteen-eighteenth 19 ninteen-nineteenth 20 twenty-twentieth 21 twenty-one--twenty-first 22 twenty-two--twenty-second 23 twenty-three--twenty-third 24 twenty-four--twenty-fourth 25 twenty-five--twenty-fifth 26 twenty-six--twenty-sixth 27 twenty-seven--twenty-seventh 28 twenty-eight--twenty-eighth 29 twenty-nine--twenty-ninth 30 thirty--thirtieth。

20 twenty

21 twenty-one

22 twenty-two

23 twenty-three

24 twenty-four

25 twenty-five

26 twenty-six

27 twenty-seven

28 twenty-eight

29 twenty-nine

30 thirty

第20 twentieth

第21 twenty-first

第22 twenty-second

第23 twenty-third

第24 twenty-fourth

第25 twenty-fifth

第26 twenty-sixth

第27 twenty-seventh

第28 twenty-eighth

第29 twenty-ninth

第30 thirtieth

第31 thirty-first