21到40的英语单词

20到40英语单词：

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

31-thirty-one

32-thirty-two

33-thirty-three

34-thirty-four

35-thirty-five

36-thirty-six

37-thirty-seven

38-thirty-eight

39-thirty-nine

40-fourty

基数词的形式

表示数目的词称为基数词。其形式如下：

1.从1——10 one，two，three，four，five，six，seven，eight，nine，ten．

2.从 11——19 eleven，twelve， thirteen， fourteen， fifteen， sixteen， seventeen，eighteen， nineteen．

3.这里除 eleven， twelve， thirteen， fifteen， eighteen为特殊形式外，fourteen，sixteen，seventeen，nineteen都是由其个位数形式后添加后缀-teen构成。

4.从 20——99 整数几十中除twenty，thirty, forty，fifty，eighty为特殊形式外，sixty，seventy，ninety都是其个位数形式后添加后缀-ty构成。表示几十几时，在几十和个位基数词形式之间添加连字符“-” 。

5.有时两个复数形式的基数词连用可写为： hundreds of thousands of , tens of hundreds of 等等。

6.表示人的不确切岁数或年代，用几十的复数形式表示。

参考资料：百度百科 -基数词

twenty-one twenty-two twenty-three twenty-four twenty-five twenty-six twenty-seven twenty-eight twenty-nine thirty thirty-one ........按照以上规律写就行啦 40是fourty 50是fifty

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

31 thirty- one

32 thirty- two

33 thirty- three

34 thirty- four

35 thirty- five

36 thirty- six

37 thirty- seven

38 thirty- eight

39 thirty- nine

40 forty

几十几的数词就是用几十加上一条"-"再加上个位数字就可以啦.例如39就是 thirty- nine 。

扩展资料：

基数词 1-12 是独立单词,需逐个记忆。

基数词 13-19是个位数词的词干后加-teen 构成。其中 thirteen, fifteen, eighteen 变化不规则。

基数词 20-90 是在个位数词后面加 -ty 构成。其中 twenty, thirty, forty, fifty, eighty 变化不规则。

基数词 21-99 是在十位数词后面加上个位数词合成,中间加上连字符 " - " 。

例如: 21 twenty-one,95 ninety-five

基数词三位以上的数词, 在百位和十位之间,一般要用连词"and "，十万位和万位,亿位和千万位之间通常也要加and。例如: 132 one hundred and thirty-two,1340 one thousand three hundred and forty.

（2）英语中没有万，十万，千万，亿这样的单位数词，ten thousand 十千，十千（1000×10）=一万。故用阿拉伯数字书写千以上的数目时，要由右向左每三位数间留一个空格或写一个逗号。第一个前为thousand；第二个前为million；第三个前为thousand million（英）或billion（美）。每两个空格间或两个逗号间的三位数都被看作“十位数或百位数的千”或“十位数或百位数的百万”。例如56 000 fifty-six thousand和600,000,000 six hundred million。

（3）dozen,score,hundred,thousand,million等数词前面有基数词或某些表示数量的形容词时，不加-s。例如 a few hundred meters 几百米 several million people 数百万人 two thousand teachers 两千位老师，但如表示“几百”“几千”“几百万”等笼统的数目时，则应用-s of构成短语。如：hundreds of books 几百本书 thousands of workers 几千个工人

（4）hundred、 thousand、 million作数词时,不用复数,前面可以加上one, two, …等其它数词。用作名词时复数表示“成…上…”,后面必须要有of,前面可以加上some,many,several等词。如：five hundred(五百), hundreds of(成百上千的), ten thousand(一万), thousands of(成千上万的), millions of(成百万的).

参考资料：百度百科-序数词

从21到50的英语单词

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

31 thirty-one

32 thirty-two

33 thirty-three

34 thirty-four

35 thirty-five

36 thirty-six

37 thirty-seven

38 thirty-eight

39 thirty-nine

40 forty

41 fourty-one

42 fourty-two

43 fourty-three

44 fourty-four

45 fourty-five

46 fourty-six

47 fourty-seven

48 fourty-eight

49 fourty-nine

50 fifty

20-twenty 21-twenty-one22-twenty-two23-twenty-three24-twenty-four25-twenty- five26-twenty-six27-twenty-seven28-twenty-eight29-twenty-nine30-thirty 31-thirty-one32-thirty-two33-thirty-three34-thirty-four35-thirty-five36-thirty-six37-thirty-seven38-thirty-eight39-thirty-nine40-fourty

twenty- one, twenty two,twenty three, twenty four , twenty five, twenty six,, twenty seven, twenty eight, twenty nine , thirty, thirty one, thirty two ,, thirty three, thirty four ,, thirty five,, thirty six,, thirty seven,, thirty eight ,, thirty nine,, forty,, forty one,, forty two,, forty three,, forty four,, forty five,, forty six,, forty seven,, forty eight,, forty nine,, fifty.