我们数一数有几个o？

6个（基数词：表示个数）six六

第2个是白色的（序数词：表示第几）second第二

常见的基数词和序数词：

基数词1-100，下面是归纳总结。

如果没有记忆力，学的再多都没有用。

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 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 forty-one 42 forty-two 43 forty-three 44 forty-four 45 forty-five 46 forty-six 47 forty-seven 48 forty-eight 49 forty-nine

50 fifty 51 fifty-one 52 fifty-two 53 fifty-three 54 fifty-four 55 fifty-five 56 fifty-six 57 fifty-seven 58 fifty-eight 59 fifty-nine



60 sixty 61 sixty-one 62 sixty-two 63 sixty-three 64 sixty-four 65 sixty-five 66 sixty-six 67 sixty-seven 68 sixty-eight 69 sixty-nine

70 seventy 71 seventy-one 72 seventy-two 73 seventy-three 74 seventy-four 75 seventy-five 76 seventy-six 77 seventy-seven 78 seventy-eight 79 seventy-nine

80 eighty 81 eighty-one 82 eighty-two 83 eighty-three 84 eighty-four 85 eighty-five 86 eighty-six 87 eighty-seven 88 eighty-eight 89 eighty-nine

90 ninety 91 ninety-one 92 ninety-two 93 ninety-three 94 ninety-four 95 ninety-five 96 ninety-six 97 ninety-seven 98 ninety-eight 99 ninety-nine

100 one hundred

怎么读？

185读作 one hundred and eighty-five

101读作 one hundred and one

646读作 six hundredand forty-six

备注：

百位和十位要用and。

十位和各位要用连字符“—”。



练习题

根据下面的提示填写完整

1.How many books do you have？

I have_____(15) books，______(8) storybooks and_______(7)picture books.

2.How old are you？你几岁了？

I’m______(10) years old.我十岁了。

3.There are______(37) students in my class.There are_______(18) boys and_____(19)girls.



第1 first1st 第2 second 2nd 第3 third 3rd 第4 fourth 4th 第5 fifth 5th (fivefif)第6 sixth 6th 第7 seventh 7th 第8 eighth 8th 第9 ninth 9th 第10 tenth 10th

第11 eleventh 11th 第12 twelfth 12th （twelvetwelf）第13 thirteenth 13th 第14 fourteenth 14th 第15 fifteenth 15th 第16 sixteenth 16th 第17 seventeenth 17th 第18 eighteenth 18th 第19 nineteenth 19th

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 第31 thirty-first 31st 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 第41 forty-first 第42 forty-second 第43 forty-third 第44 forty-fourth 第45 forty-fifth 第46 forty-sixth 第47 forty-seventh 第48 forty-eighth 第49 forty-ninth

第50 fiftieth 第51 fifty-first 第52 fifty-second 第53 fifty-third 第54 fifty-fourth 第55 fifty-fifth 第56 fifty-sixth 第57 fifty-seventh 第58 fifty-eighth 第59 fifty-ninth

第60 sixtieth 第61 sixty-first 第62 sixty-second 第63 sixty-third 第64 sixty-fourth 第65 sixty-fifth 第66 sixty-sixth 第67 sixty-seventh 第68 sixty-eighth 第69 sixty-ninth

第70 seventieth 第71 seventy-first 第72 seventy-second 第73 seventy-third 第74 seventy-fourth 第75 seventy-fifth 第76 seventy-sixth 第77 seventy-seventh 第78 seventy-eighth 第79 seventy-ninth



第80 eightieth 第81 eighty-first 第82 eighty-second 第83 eighty-third 第84 eighty-fourth 第85 eighty-fifth 第86 eighty-sixth 第87 eighty-seventh 第88 eighty-eighth 第89 eighty-ninth

第90 ninetieth 第91 ninety-first 第92 ninety-second 第93 ninety-third 第94 ninety-fourth 第95 ninety-fifth 第96 ninety-sixth 第97 ninety-seventh 第98 ninety-eighth 第99 ninety-ninth

第100 one hundredth

特别注意：序数词前面往往加the，表示第几。the first one第一个

例句展示

There are three hundred and sixty-fivedays in a year.一年有365天。

The bike cost me five hundred and forty yuan.

There are seven days in a week.一周有七天。

This is her twentiethbirthday.这是她的第20个生日。（物主代词出现的时候，the就没有了。）