基数词序数词练习题(含答案)
初中英语“基数词与序数词”综合强化练习(附答案)
25．—We have to write a ________ passage in the English examination. It is too hard for me!
23．Forty and ________ is ninety.
A．fiftyB．fortyC．sixtyD．eighty
24．Boys and girls, would you please open your books and turn to Page ________? Let’s look at the ________ picture.
A．hundredsB．hundreds ofC．ten hundredsD．ten hundreds of
7．The Olympic Games are held(举行) _______.
A．every four yearB．each four yearC．each four yearsD．every four years
—I don’t think writing ________ is so difficult a task when you try your best.
A．90-word, 90 wordsB．90 words, 90 words
C．90-word, 90-wordD．90 words, 90-word
— Oh, my god. You need to protect your eves well
A．three-fourths; wearsB．three-fourth; wearC．three-fourth; wearsD．three-fourths; wear
职业基数词与序数词练习题
职业基数词与序数词练习题
1. 基数词（Cardinal Numbers）是指用来表示“数量、次序或排列顺序”的词语，如1、2、3等。
序数词（Ordinal Numbers）是指用来表示“顺序、排序或排名”的词语，如第一、第二、第三等。
下面是一些职业的基数词和序数词的练题，帮助你巩固记忆，并提高运用。
2. 请根据题目要求，填写适当的基数词或序数词。
a. 程序员 (Programmer)
- 基数词：___（填写对应的基数词）
- 序数词：___（填写对应的序数词）
b. 律师 (Lawyer)
- 基数词：___（填写对应的基数词）
- 序数词：___（填写对应的序数词）c. 医生 (Doctor)
- 基数词：___（填写对应的基数词）- 序数词：___（填写对应的序数词）d. 教师 (Teacher)
- 基数词：___（填写对应的基数词）- 序数词：___（填写对应的序数词）
3. 题目解析：
a. 程序员 (Programmer)
- 基数词：___（填写对应的基数词）
- 序数词：___（填写对应的序数词）b. 律师 (Lawyer)
- 基数词：___（填写对应的基数词）- 序数词：___（填写对应的序数词）c. 医生 (Doctor)
- 基数词：___（填写对应的基数词）- 序数词：___（填写对应的序数词）d. 教师 (Teacher)
- 基数词：___（填写对应的基数词）- 序数词：___（填写对应的序数词）。
小学英语中的基数词和序数词附带练习题
小学英语中的基数词和序数词定义表示数目的词是基数词。
构成最基本的数词如下: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, 30 thirty, 40 forty, 50 fifty, 60 sixty, 70 seventy, 80 eighty, 90 ninety, 100 a hundred, 1,000 a thousand, 1,000,000 a million, 1,000,000,000 a billion.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是在十位数词后面加-ty 构成。
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”。
例如：132 one hundred and thirty-two.1340 one thousand three hundred and forty表示“万”的词英语中没有。
如1万可用10千来表示：ten thousand。
30万可用 three hundred thousand 来表示。
基数词的用法:从句子成分上分析，基数词在句中可用作主语，宾语，表语等。
主语) Four of them went to the factory. 他们四个人去了工厂。
基数词序数词练习题_共4页
基数词序数词英语序数词及基数词基数词：表示“几个”two sons两个儿子百千万表示确切的数目：用确切数目加 hundred,th ousand,millon的单数表示几百，千，万。
Two hu ndred两百变成 tie(twenty-twentieth); 若是碰到几十几，只变个位就可以(twenty-one----twenty-first).基数词和序数词的练习题例题：There are about three hundred apples in the tree.树上有200个苹果一、：写出下列词的序数词1. oneve2.two5. nine3. six4.fi百千万表示不确切的数目：”成百上千”，用 hundred,thousand,millon的复数形式加of表示。
Hundre d s of其前可以被many,few修饰.There are hundreds of apples in the tree.树上有成千上万个苹果6.twelve 7.eight 8.twenty-one二、写出下列单词的基数词1.third2.fourth3.tenth4.twentieth5.nineteenth6.thirty-first _三、根据句子意思填空。
序数词表示“第几”序数词表顺序，一般需用定冠词。
second son第二个儿子，The first of May五月的第一天（五月一日）Sunday is the first day of a week.星期天是一个周的第一天1. Children’s Day（儿童节）is on the月）.of June（六2. There are months（月）in a year(年).3. Teacher’s Day(教师节) is on the of September（九月）.4. Three plus(加) six is四、选择填空。
.基数词变序数词的规律( )1. My cousin’s birthday in on the of October.A. threeB. firstC. the second基变序，有规律，词尾加上 th;( )2. What date is it today? It’s of April.一二三，特殊记，词尾字母 t,d,d(first,second, third);A. twelfthB. the 12thC. 12th( )3. There are days in a week.A. the sevenB. seventhC. the seventhD. seven八减t(eighth),九去 e (ninth)，f来把ve替(fi ( )4.Sunday is theA. oneB. first day of a week.C. secondve---fifth,twelve---twelfth); 单词ty作结尾，ty( )5. Twenty-eight minus(减)six is .变成 tie(twenty-twentieth); 若是碰到几十几，A. the twenty- secondB. twenty-twoC. twenty- second( )6. Four plus(加) is twelve.A. sevenB. eightC. nine( )1. At night we can see ______ stars in the sky.A.thousands ofB. thousand ofC. two thousandD.two thousands( )2. There are some _____ in our classroom.A. hundred of booksB. the hundreds of booksC. hundreds of booksD. hundred of book )3. There are ____ students in our school.C. four hundreds and forty-five students.( ((A. nine hundreds of C. nine hundredsB. nine hundred D. nine hundred ofD. four hundred and forty- five ( )17. ---How many new words are there in ________)4. May is ____ of a year. lesson?A. the fifth months C. the five monthsB. the fifth month D. the five month---There are only _________. A. five; fifth B. fifth; five D. the fifth; five )5. We live in ______.C. the fifth; the fiveA. the twenty-first century (21世纪)B. the century ( ( ( )18. September is _________ month of the year.A. the ninethB. the ninthC. ninethD. ninth )19. Tuesday is the _______ day of a week in English.A. firstB. fifthC. thirdD. fourth)20. There are _______ seasons （季节） in a year in our twenty-oneC. century twenty-one )6 He joined the army （参军） on ______ of May 1980.A. 1 stB. the 1C. firstD. the first )7 September is the _____month of the year.A. ninethB. ninthC. nineD. the twelveth )8December the ____ is Christmas （圣诞节）.D. the century twenty-first ( ( ( country.A. two )21. There are _______ people in my family. We live on the _______ floor in a tall building.B. fourC. secondD. fourth ( A. twenty-five B. twenty-fifth D. twenty-fiveC. twentieth-five A. five, six C. fifth, sixB. fifth, sixth D. five, sixth( )9.Every year, _____ people go to visit their factory （参观工厂）( ()22. My lovely daughter is _______.A. eight years old A. a thousand of C. thousand of B thousandsB. eight-year-oldD. eight-years-old D. thousands of C. eight year old( ()10. Tom writes （写）a _________ article(文章).)23. February 28 should be read （被读作）as _______.A. nine hundred words C. nine hundred wordB. nine hundreds word D. nine hundreds wordsA. February of the 28th C. 28 of FebruaryB. February of 28 D. the 28th of February)11._______ people lost their homes （失去了他们的家 园） in Japan’s earthquake （日本地震）.A. Two thousands C. Thousands ofB. Thousand D. Thousand of( )12.Tomorrow （明天） is the boy’s ________ birthday （生日）.A. seventhB. sevenC. seventeen( )13—How was your day of yesterday （昨天）?—Perfect （完美）! It was my grandma’s （祖父母的） ________ birthday. We had a big cake.A. eightyB. eightiethC. the eightieth )14. A _______ boy can sing the English song very well.(A. ten-years-old C. ten-year-oldB. ten years old D. fifth years old( )15---How many students are there in your class?---________.A. Twenty nine C. Forty-fiveB. Thirty and two D. fifties( )16. Our school is not very big. There are only ________to介词finish his work. A. except 1、选用括号内恰当的介词填空。
完整版数词专项练习(含答案)
数词专项练习一．基数词( )1. —How much is the white coat?—It’s_____yuan.A.one thousand, six hundred,eighty-eightB.one thousand six hundred eighty-eightC.one thousand, six hundred and eighty-eightD.one thousand and six hundred and eighty-eight( )2.—Can you write the number eighty-five thousand, six hundred and twenty-six?—Yes, it is _____.A.85,626B.856,620C.58,662D.58,626( )3. It took us ____ to finish the new research report.A. three hour and a halfB. three and a half hourC. three and half hoursD. three and a half hours( )4. The children got to the Ocean Park after ____ ride.A. an hour’sB. an hours’C. a hour’sD. one hours’( )5. —Did you finish your homework, Tom?—I need ____ hours.A. another twoB. two anotherC. more twoD. still two ( )6. —Would you like to stay ____ days in Beijing?—No, thanks. I’m afraid I’ll be back tomorrow.A. more twoB. other twoC. two anotherD. another two二．序数词7. There are fifty floors in this tall building. Mr. Wang’s office is on the _______（第四十）floor.8. Tomorrow is Tom’s ________(twelve) birthday. Let’s give him some presents.9. The old man lives on the _______ (nine) floor of this tall building.10. Mr. Green lives on the _______（three）floor.11. The boy writes to his parents _____ (one) a week.三．单位词12. There are (有) about eight h____ students in my school.13. —How many students does your school have?—About two _______ (千).14.The place of interest is visited by millions of ________(tourist).( )15.Xi’an is a city with many places of interest and _____ tourists come here every year.A.thousand ofB.thousandC.thousandsD.thousands of ( )16. There were _______ animals in the forest many years ago.A. billions ofB. billion ofC. three billion ofD. three billions of( )17. —How many students are there in your school?—_______ students, I think.A. Thousand ofB. Three thousandsC. Three thousandD. Three thousands of四．序数词、基数词( )18. The boy is only _____ and today is his _____ birthday.A. nine; nineB. ninth; nineC. nine; ninthD. ninth; ninth ( )19. There are _____ floors in this building and Mr. Wang’s office is on _____floor.A. forty; twelfthB. fortieth; twelveC. fortieth; twelfthD. forty; the twelfth五．数词+ 名词+（形容词）( )20. When National Day comes, we have a _____ holiday.A. seven-dayB. seven-daysC. seven daysD. seven day( )21. Li Ming will take part in the boys’ _______.A. 800-meter raceB. 800-meter racesC. 800 meter raceD. 800-meter-races( )22. Don’t shout at him. He is only _______ boy.A. a eight-year-oldB. an eight-year-oldC. a eight years oldD. an eight years old( )23. Kangkang won the first place in the _______ in the school sports meet last week.A. boy’s 100-meter raceB. boys’ 100-meter raceC. boy’s 100-meters raceD. boys’ 100-meters race( )24. The summer holiday is coming. We’re going to have _______ holiday.A. a two-monthB. a two-monthsC. two monthsD. two-months ( )35. —Though Mike is ____ boy, he can say many words.—How clever!A. an-one-year-oldB. a one-year-oldC. an one-year oldD. a one-year old ( )26. —Hi, Jim! What’s your plan?—I will be on ____ holiday.A. a two-dayB. a two dayC. a two-day’sD. a two-days ( )27. Though she is a ____ woman, she often dances with young people.A. sixty years oldB. sixty-years-oldC. sixty-year oldD. sixty-year-old ( )28. —Can you tell me ____ we will have a holiday for May Day?—Yes, we will. We will have a ____ holiday.A. if; two daysB. that; two daysC. if; two-dayD. that; two-day 六．分数、百分数、小数( )29.There are sixty teachers in our school._____ of them are women.A.One thirdB.One threesC.One thirdsD.First three ( )30.In our class _____ of the students _____ girls.A.third fifths, isB.third fifth, areC.three fifth, isD.three fifths, are ( )31._____ of the students in our class _____ boys.A.Twenty percents, areB.Twenty percents, isC.Twenty percent, areD.Twenty percent, is( )32.There is still some water in the bottle, but _____ of the water _____ been drunk by Tom.A.two third, hasB.two three, haveC.two thirds, hasD.two thirds, have七．次数的表达法33. I have been to Hong Kong ________ (two).34. —How often does Jim go to the library?—He goes to the library o_____ a week.八．世纪年代的表达法( )35. Our country did something useful to improve the people’s life_______. Now our Chinese are living a happy life.A. in the 1970B. in 1970sC. in 1970’sD. in the 1970s参考答案：一．基数词1-6：CADAAD二．序数词7：fortieth 8: twelfth 9: ninth 10: third 11:once三．单位词12: hundred 13: thousand 14: tourists 15: D 16: A 17：C四．序数词、基数词18-19：CD五．数词+ 名词+（形容词）20-25: AABBA 26-28: BAD六．分数、百分数、小数29-32: ADCC七．次数的表达法33: twice 34: once八．世纪年代的表达法35: D。
英语中考基数词与序数词试题及答案
英语中考基数词与序数词试题及答案( )1.(2017·宝山·一模)The_________boy from the left in the picture was Martin.(six)( )2.(2017·奉贤·一模)Tagore wrote his_________poem when he was eight years old.(one)( )3.(2017·虹口·一模)It's amazing that Mr Smith took up playing the piano in his_________.(sixty)( )4.(2017·闵行·一模)Year 2019 was the_________birthday of China—our great motherland.(seventy)( )5.(2017·徐汇·一模)Jack_________lost his way in the railway station and contacted a local agent for help.(one)( )6.(2017·长宁、金山·一模)Our new term begins in September,the_________month of a year.(nine)( )7.(2017·奉贤·二模)Congratulations!You are the_________visitor today and you can get a big prize.(hundred)( )8.(2017·虹口·二模)Every class will prepare a programme to celebrate the_________birthday of our school.(fifty)( )9.(2017·黄浦·二模)My English teacher is a lady of average height in her early_________.(forty)( )10.(2017·嘉定·二模)Mike is an experienced doctor in Zhongshan Hospital.He's only in his early_________.(thirty)( )11.(2017·普陀·二模)George started flying in his_________and quickly became an excellent pilot.(twenty)( )12.(2017·徐汇·二模)People celebrate the Dragon Boat Festival on different dates.It is on May the_________this year.(thirty)( )13.(2017·杨浦·二模)In America,_________is the age when one can begin full day kindergarten.(fourth)( )14.(2017·长宁·二模)All the classmates took the difficult exam,but only_________of them passed.(fifth)( )15.(2018·静安·一模)_________Avenue is a good place for window shopping.(five)( )16.(2018·嘉定·一模)Tom's grandfather showed great interest in Beijing opera in his_________.(fifty)( )17.(2018·浦东·一模)We still need_________more assistants for the teen center library.(second)( )18.(2018·虹口·二模)We took the lift to the_________floor to enjoy the night view of the city.(forty)( )19.(2018·普陀·二模)My cousin's flat is on the_________floor with a good view of the neighborhood.(ten)( )20.(2018·闵行·二模)The recording will be played_________to make sure you can understand each word.(two)( )21.(2018·静安·二模)The May Movement is also called the New Culture Movement.(four)( )22.(2018·金山·二模)There were ten students in the room,then_________more came in silently.(third)( )23.(2019·宝山·一模)Western countries didn't use paper money until the_________century.(sixteen)( )24.(2019·奉贤·一模)Austin was in his_________when he met a musician.(twenty)( )25.(2019·金山·一模)China held its_________international import Expo(进博会)in Shanghai last year.(one)( )26.(2019·青浦·一模)In the United States,Father's Day is on the_________Sunday in June.(three)( )27.(2019·杨浦·一模)Huawei has overtaken Apple to become the world's_________largest smartphone maker.(two)( )28.(2019·宝山、嘉定·二模)The_________generation of the best-selling Toyota car will be released next year.(twelve)参考答案1.sixth2.first3.sixties4.seventieth5.once6.ninth7.hundredth8.fiftieth9.forties10.thirties11.twenties12.thirtieth13.four14.five15.Fifth16.fifties17.two18.fortieth19.tenth20.twice21.Fourth22.three23.sixteenth24.twenties25.first26.third27.second28.twelfth。
2月11日英语基数词与序数词 必练 必研(2)
命题点一基数词与序数词1. Li Ming will be ________. His parents are going to have a party for his ________ birthday.A. sixteen; sixteenthB. sixteenth; sixteenthC. sixteen; sixteenD. sixteenth; sixteen2. Meimei is going to be an older sister. Her parents are planning to have their_______ child.A. oneB. twoC. firstD. second3. Please turn to page ________ and take a look at the picture on it.A. the eightiethB. eightiethC. eightiesD. eighty4. —What are you going to do this Saturday?—I am going to the old people's home to celebrate Mrs. Green's________birthday.A. ninty ninthB. ninety ninthC. ninety nineth5. There are ________ days in March and the ________ day is Women's Day.A. thirty one, eighthB. thirty first, eighthC. thirty one, eight6. He has failed ________ times, but he won't give up a ________ chance.A. third, fourB. three, fourthC. third, fourth7. There are ________ months in a year. December is the ________ month of a year.A．twelve; twelve B．twelfth; twelfthC．twelve; twelfth D．twelfth; twelve答案：ADDBA BC命题点二概数词1. 具体数字＋概数词＋名词复数。
初一英语基数词与序数词用法单选题30题
初一英语基数词与序数词用法单选题30题1.There are ____ apples on the table.A.threeB.fourC.fiveD.six答案：A。
本题考查基数词的用法。
选项A“three”表示“三个”；选项B“four”表示“四个”；选项C“five”表示“五个”；选项D“six”表示“六个”。
根据题意，桌子上有三个苹果，所以答案是A。
2.I have ____ pencils in my pencil case.A.twoB.threeC.fourD.five答案：B。
选项A“two”表示“两个”；选项B“three”表示“三个”；选项C“four”表示“四个”；选项D“five”表示“五个”。
题目中说我铅笔盒里有三支铅笔，所以答案是B。
3.There are ____ books on the shelf.A.oneB.twoC.threeD.four答案：C。
选项A“one”表示“一个”；选项B“two”表示“两个”；选项C“three”表示“三个”；选项D“four”表示“四个”。
根据题意，架子上有三本书，所以答案是C。
4.My sister has ____ dolls.A.twoB.threeC.fourD.five答案：B。
选项A“two”表示“两个”；选项B“three”表示“三个”；选项C“four”表示“四个”；选项D“five”表示“五个”。
题目中说我姐姐有三个娃娃，所以答案是B。
5.There are ____ chairs in the classroom.A.fourB.fiveC.sixD.seven答案：B。
选项A“four”表示“四个”；选项B“five”表示“五个”；选项C“six”表示“六个”；选项D“seven”表示“七个”。
根据题意，教室里有五把椅子，所以答案是B。
6.My birthday is on May _____.A.fiveB.fifthD.fivth答案：B。
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基数词序数词练习题I.选择题。
( )1. Please turn to ______.A. Page 11B. the 11st pageC. page 11D. page the 11 th( )2. I have been to the village ________. A. a hundred timeB. hundred timesC. hundreds of timesD. hundred of times( )3. There are ____ students in our school.A. four—hundred and forty—fiveB. four hundred and forty—fiveC. four hundreds and forty—fiveD. four hundred and forty five( )4. We live in ______.A. the twenty-first centuryB. the century twenty-oneC. century twenty-oneD. the century twenty-first( )5. He said he was going to be free in _______.A. one and a half hourB. one hour and halfC. one and half hoursD. an hour and a half( ) many English books are there on the table -There is only _____English book on it.A. aB. anC. oneD. the( )7. The road is _________.A. two thousand and five hundred metres longB. two thousands metres longC. long one thousand five hundred metreD. a thousand and five hundreds metres long ( )8. He joined the army on ______ of May 1980.A. 1 stB. the 1C. firstD. the first( )9. March the _____ is Women’s Day.A. eighthB. ninthC. tenthD. eight( )10. September is the _____month of the year.A. ninethB. ninthC. nineD. the twelveth( )11. December the ____ is Christmas.A. twenty-fiveB. twenty-fifthC. twentieth-fiveD. twenty-five( )12. Another way of saying Lesson 12 is __________.A. Lesson ten-twoB. Lesson Ten-secondC. the Twelfth LessonD. Twelfth lesson II. Translation.1. 电话号码8485308 _____________________2. 第五册 ___________________3. 成千上万的儿童 _____________________4. 一个半小时 _______________________5. 45路公共汽车 ______________________6. 三分之一 _______________________7. 五分之四 ________________________ 8. 第501房间 _____________________9. 第二层 _________________________ 10. 一次/二次/三次 ______________________ 11.在某人60岁的时候 _____________________ 12. 在二十世纪三十年代 ____________________’s half past eight. ________________ 14. It’s a quarter to15. It’s January twenty-sixth eighteen ninety-three. _____________________________________16. 他每天早上总是第一个到校。
_____________________________________________________________17. 第三天早上玛丽没有迟到。
_______________________________________________________________18. 这本书我昨晚读了20页。
________________________________________________________________19. 最近的医院离他们学校约4—5公里。
______________________________________________________ 1—6. ACBADC 7—12. ADABBCII. 完成句子：1. It’s half past eight.2. It’s a quarter past nine.3. It’s a quarter to eight.4. It was January twenty-sixth eighteen ninety-three.III. 翻译短语和句子：1. Telephone number/ Tel. No. eight four eight five three o eight2. No. Sixty-four Middle School3. thousands of children4. half and two months/ two months and a half5. No. 45 bus/ Bus 456. one third7. four fifths8. Room 5019. the second floor10. the third time 11. Book V 12. half and two weeks/ two weeks and a half13. He is always the first to get to school every morning.14. The third day Mary wasn’t late 15. I read 2o pages of the book yesterday evening.16. The nearest hospital is about four to five kilometers from their school.17. in the 1930s一、基数词下面把100以内的基数词分为四类。
1、第一类：one 一two 二three 三four 四five 五six 六seven 七eight 八nine 九ten 十eleven 十一twelve 十二这一类共计十二个单词，在结构上与其他的基数词相比较是特殊的，就象不规则的动词一样，要求逐个的硬背下来，这对学好其他的基数词和序数词都是及其重要的。
2、第二类：thirteen 十三fourteen 十四fifteen 十五sixteen 十六seventeen 十七eighteen 十八nineteen 十九这一类基数词共有七个。
它们在结构上有两个特点：一是在发音方面都有两个重音；二是在拼法上都有后缀－teen。
除了thirteen和fifteen之外，都是纯粹地在另一个基数词的后面加上后缀－teen。
但要注意eighteen的拼法，eight本身有t字母，因此只加－een。
3、第三类：twenty 二十thirty 三十forty 四十fifty 五十sixty 六十seventy 七十eighty 八十ninety 九十这类基数词共有八个。
都是十位的整数，均以后缀－ty结尾。
其中sixty、seventy、eighty、ninety 基本上是在相应的基数词后面加上后缀－ty。
但要注意eighty的拼法，eight本身有t字母，因此只加－y。
4、第四类：这一类和很简单，可以看成是一种合成词。
其结构方式是：用十位整数加上个位整数，其间用连字符号“－”连接，表示“几十几”。
这类基数词的变化都是规则的。
如：twenty-one 二十一forty-six 四十六seventy-eight 七十八ninety-five 九十五二、序数词下面把1－99的序数词也分为四个类。
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、ni nth、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。