30的序数词英文怎么写

1. 1到30的序数词英文怎么写

首先搞清楚基数词和序数词，

基数词，表示数量，1,2,3，表示多少个

序数词，表示顺序，第1，第2，第3，表示第几个

1-30的序数词，前3个是特殊情况，需要单独记忆，从4开始往后，基本上都是在基数词的词根后面加th，但是词根变化较多，尤其结尾部分，要注意。

还有，所有序数词之前，都要加the。

1-10,first, second, third,fourth,fifth,sixth,seventh,eighth,ninth,tenth

11-20,eleventh,twelfth,thirteenth,fourteenth,fifteenth,sixteenth,seventeenth,eighteenth,nineteenth,twentieth

21-30,twenty first, twenty second,twenty third,twenty-fourth,twenty-fifth,twenth-sixth, twenty-seventh,twenty-eighth,twenty-ninth,thirtieth

2. 1到30的序数词怎么写

第1 first 第2 second 第3 third 第4 fourth 第5 fifth 第6 sixth 第7 seventh 第8 eighth 第9 ninth 第10 tenth 第11 eleventh 第12 twelfth 第13 thirteenth 第14 fourteenth 第15 fifteenth 第16 sixteenth 第17 seventeenth 第18 eighteenth 第19 nineteenth 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 第32 thirty-second 第33 thirty-third 第34 thirty-fourth 第35 thirty-fifth 第36 thirty-sixth 第37 thirty-seventh 第38 thirty-eighth 第39 thirty-ninth 第40 fortieth。

3. 20到30的序数词怎么写

第20 twentieth 20th 第21 twenty-first 21st 第22 twenty-second 22nd 第23 twenty-third 23rd 第24 twenty-fourth 24th 第25 twenty-fifth 25th 第26 twenty-sixth 26th 第27 twenty-seventh 27th 第28 twenty-eighth 28th 第29 twenty-ninth 29th 第30 thirtieth 30th。

4. 英语1到30的序数词和基数词

序数词first second third fourth fifth sixth seventh eighth ninth tenth eleventh twevlfth thirteenth fourteenth fifteenth sixteenth seventeenth eighteenth nineteenth twentieth twenty- first twenty-second twenty-third twenty-fourth twenty-fifth twenty-sixth twenty-seventh twenty-eighth twenty-ninth tirtieth

基数词：1 one 2 two 3 three 4 four 5 five 6 six 7 seven 8 eight 9 nine 10 ten 11 eleven 12 twelve 13 thirteen 14 fourteen 15 fifteen 16 sixteen 17 seventeen 18 eighteen 19 nineteen 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

5. 一到30序数词用英语怎么写

1-100的序数词分为四个类。

1、第一类

first (1st) 第一

second (2nd) 第二

third (3rd) 第三

（在括号里的是缩写形式，均在阿拉伯数字后面加上相应序数词的最后两个字母构成，以下各类与此相同。）这类序数词只有三个，在整个序数词里面是特殊的，就和第一类基数词一样，需要逐个地硬记下来。

2、第二类：

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

这一类序数词共有十六个。均在相应的基数词后面加上后缀-th构成。要注意其中fifth、eighth、ninth、twelth四个词的拼法。

3、第三类：

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

这一类全是十位整数的序数词，共八个。它们的构成方法是：先将相应的十位整数的基数词词尾-ty中的y改成i，然后在加上后缀-eth。

4、第四类：

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

这类表示“第几十几”的序数词，跟表示“几十几”的基数词一样简单。在构成方法上均由基数词“几十几”变化而来，十位数不变，仅把个位上的基数词变成序数词就行了。

第一百 hundredth

6. 1

zd1 st first 2 nd second 3 rd third 4 th fourth 5 th fifth 6 th sixth 7 th seventh 8 th eighth 9 th ninth 10 th tenth 11 th eleventh 12 th twelfth 13 th thirteenth 14 th fourteenth 15 th fifteenth 16 th sixteenth 17 th seventeenth 18 th eighteenth 19 th nineteenth 20th twentieth 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 30th thirtieth。

7. 一到30序数词用英语怎么写

1-10:first

second

third

fourth

fifth

sixth

seventh

eighth

ninth

tenth

11-20 eleventh

twelfth

thirteenth

fourteenth

fifteenth

sixteenth

seventeenth

eighteenth

nineteenth

twentieth

21-30

twenty-first

twenty-second

twenty-third

twetny-fourth

twenty-fifth

twenty-sixth

twenty-seventh

twenty-eighth

twenty-ninth

thirtieth

8. 1

1st first

2ndsecond

3rdthird

4thfourth

5thfifth

6thsixth

7th seventh

8theighth

9thninth

10thtenth

11theleventh

12thtwelfth

13ththirteenth

14thfourteenth

15thfifteenth

16thsixteenth

17thseventeenth

18theighteenth

19thnineteenth

20th twentieth

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

30th thirtieth

9. 1

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

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