初中英语数词专项

1、学习必备欢迎下载数词讲解专项练习1数词的讲解一、定义：表示数目或次序二、分类：分为基数词和序数词两种；表示数目或数量多少的词叫基数词；表示数目次序的词叫序数词；三、基数词的构成：1）1-12 的基数词是独立的单词，即：one，two，three，four，five，six，seven，eight， nine， ten， eleven， twelve；2）13-19 的基数词以 -teen结尾； 如： fourteen，seventeen等，但 13 ，15 ，18 较特殊，13 thirteen, 15 fifteen, 18 eighteen；3）20-90 的整十位均以-ty 结尾；如：s

2、ixty，ninety，但 20 ，30 ，40 ， 50 ，80 较特殊，20 twenty, 30 thirty, 40 forty, 50 fifty, 80 eighty；4）十位数与个位数之间要加连字符号"-"，如： 28-twenty-eight， 96-ninety-six；5）百位和十位（如无十位就和个位）之间加and，如：148 one hundred and forty-eight 406 four hundred and six6） hundred（百）， thousand（千）， million（百万）， billion（十亿）等前面即使有 详细的数

3、词， several, some, many也不能在它们的后面加-s ；如：six hundred ， eight million；假如表示不确定数目时，用hundreds of /thousands of /millions of /billions of +名词复数 , 前面不能再加数字；7）1000 以上的数字， 从后往前数每三位加一个逗号" ，" 第一个逗号前为千（ thousand），其次个逗号前为百万（million），第三个逗号前为billion（十亿）；英语中无“万 ”这个词，我们可以用 " 几十个千（ thousand） " 表示几万，

4、" 几百个千（thousand） " 表示 " 几十万 " ；如： 2 ， 510 two thousand five hundred and ten84 ， 296 eighty-four thousand two hundred and ninety-six274 ， 350 two hundred and seventy-four thousand three hundred and fifty；四、序数词的构成：1）序数词一般是以与之相应的基数词尾加-th 构成，如：fourth, tenth,但以下的这些基数词变为序数词时，有特殊之处；one

5、first, two second, three third, five fifth, nine ninth, twelve twelfth2）以_ty结尾的单词，要先变 y 为 i, 在加 -eth.；如： thirty thirtieth, fifty fiftieth 3）以 one, two, three等结尾的多位数词，要将个位数变成序数词；如：twenty-one twenty-first, one hundred and one one hundred and first留意： 序数词前常用定冠词，有时仍可以用不定冠词a/an就表示" 又一" 的意思；（没有详

6、细范畴的限制）如：mr. brown has a second car.布朗先生另外仍有一辆车；he has tried a second time.他又尝试了一次；五、数词的应用1 时刻的表示:小时、点钟、分钟、秒钟要用基数词； “几点钟 ”用基数词加o'clock；o'clock可省略；如 :5 点钟-five o'clock “几点过几分 ” ,分30钟" 用介词past；如 :7:15 fifteen/ a quarter past seven 7:30 half past seven学习必备欢迎下载 “差几分几点 ”用介词"to"

7、；如 :7:40 twenty to eight 7:45 fifteen / a quarter to eight； 日常生活中的时间读法经常简化,直接按基数词的次序读；如: 7:05 seven o five 7:15 seven fifteen；2 年月日的表示: 年份用基数词,如:1999 年 nineteen ninety-nine 1900年 nineteen hundred 2000 年 two thousand 1905年 nineteen o five; 年用基数词, 日用序数词；如:1998 年6 月 8 日写作 :june 8, 1998;读作 :june theeigh

8、th, nineteen ninety-eight或 the eighth of june, nineteen ninety-eight；3 世纪、岁月表示法,如 : 在 90 岁月in the nineties在 19 世纪in the nineteenth century 在 18 世纪30 岁月in the 1730s或in the 1730's4 编号的表示: 基数词放到名词的后边, 该名词一般要大写;序数词放到名词的前面,加定冠词； lesson 1/ the first lesson第一课row 3/ the third row第三排 bus no. 3=the no. 3

9、bus 3路公共汽车； 表示住宅时不用no . 如:room 302读作 :room three o two 302房间； 假如编号的数词比较长,一般用基数词；如:page 457第 457 页 ； 电话号码 ,用基数词 ,如 :3855633-three eight double five six double three；5 分数的表达:分子用基数词,分母用序数词,分子大于"1" , 分母就加"s"；如 : 1/3 one third 2/3two thirds1/2 a / one half 1/4one fourth或 a/ one quarte

10、r3/4 three fourths或 three quarters6表示有小数的词用基数词,如:5.5 five point five12.135 twelve point one three five7 表示百分数,如:5 :five percent 0.8 zero point eight percent留意 :分数、百分数与主谓一样当分数、百分数修饰可数名词的复数时 , 谓语动词用复数形式;当分数、百分数修饰不可数名词时 ,谓语动词用单数形式；如 :eighty percent of the students in our school come from henan.我们学校百分之八

11、十的同学来自河南；学习必备欢迎下载three fourths of the students in my class are interested in english.我们班四分之三的同学对英语感爱好；two thirds of the water on the earth is sea water.地球上三分之二的水是海水；8 其他用法 ,如: 基数词 + 单数名词 + 形容词构成合成形容词；如: a five-year-old boy一个五岁的男孩an 800-metre-long bridge一座800 米长的桥girls 4-m00etre relay race女子400 米接力 详

12、细数词 +metre s /kilometre s /kilo s long /high /tall /deep / away等；如 : the changjiang river is 6, 300 kilometres long.长江长6300 公里； 表示 “几十岁 ”用基数词的复数形式,如: in his thirties在他三十几岁时 倍数的表达:一倍用once , 两倍用twice , 两倍以上用基数词+times；如 : five times 5倍补充 :倍数的表示法:1. 表示 “几倍大小 长短 ;数量 ”由,“倍数+ the sizelength, amount width a

13、ge height. +of”结构组成；如:the earth is forth-nine times the size of the moon.地球的大小是月亮的四十九倍；2. 表示 “ ,比, 大几倍 ”由,“倍数+形容词 副词 比较级+ than + 被比较部分”结 构组成；如:this box is three times bigger than that one.这个箱子比那个箱子大三倍； 这个箱子是那个箱子的四倍；数词练习 1. every year, people go to visit their factorya. a thousand of b thousands c. t

14、housand ofd. thousands of 2. tom has just finished writing a article.a. nine-hundred-words b. nine-hundreds-wordc. nine-hundred-wordd. nine-hundreds-words 3. people lost their homes in japan s earthquake.a. two thousands b. thousandc. thousands ofd. thousand of 4. last year, i visited a chemical fac

15、tory in baise, there are about workers in it.a.six thousands b.six thousandc. six thousands of d. six thousand of 5. about of the students in our class were born in the .a. two-thirds, 1990sb. two-thirds, 1990c. two-third, 1990s d. two-third, 1990 6. nowadaysof business letters are written in englis

16、h.a. two third b.two thirdsc. two three c. second three 7. if a=4, b=5, what s the answer to the question“ a + 2ab +1 =.”a. forty-fifth b.forty-five学习必备欢迎下载c. twenty-three d. one hundred and twenty-one 8. how often do you exercise. a week.a. two b.twice c. second d.three 9. the teacher said that of

17、the boys would take part in the talent show.a. three five b. three fives c. thirds fifths d.three fifths 10.tomorrow is the boy s birthday.a. seventhb. seven c. seventeen d. a seventh 11. which is the biggest number of the four. .a . one-third b .two-thirdsc . a half d . a quarter 12. excuse me, whe

18、re can i buy a jacket. you can go to the men's wear section on the floor.a. two b. twice c.secondd. three 13. _of the land is covered with trees and grass in pingjiang, yueyang.a. three fives b. three fifthsc. three fifth d. threes fifth 14. september is month of the year.a. ninth b. nine c. the

19、 nine d.the ninth 15. how was your day off yesterday. perfect. it was my grandma s birthday. we had a big cake.a. eighty b.eightiethc. the eightieth d. the eightieth 16. excuse me, how can i get to the museum. sorry. it's my time to be here.a. one b.first c. once d.two 17.you can see if you go o

20、ut at night.a. million stars b. thousand of starsc. hundreds starsd.million of stars 18. is this your visit to my hometown, zunyi. no. i ve been here for many times.a. one b.the firstc. first d. twice 19.more than ninestudents are doing sports now.a .hundreds b.hundred ofc. hundred d. hundreds of 20

21、. now, everybody, please turn to page and look at the picture. a. fifth; five b.five; fifthc. fifth; fifth d. five; five 21. for breakfast, i usually have and two pieces of bread.a. a cup of mild half b.half a cup of milkc. a half milk cup d. half a milk cup 22. the government of chongqing is buildi

22、ng cheap and good houses for the people.a. thousand b. thousands c. thousand of d.thousands of学习必备欢迎下载 1. there are about students in our school.a. two thousand of b. two thousands c. two thousands of d. two thousand 2. there are students in our grade.a. three hundreds and forty-five b. three hundre

23、d and forty fivec. three hundred forty-five d. three hundred and forty-five 3. sunday is day of the week.a. the first b. one c. he seventh d. the seven 4. please come to my office .a. at half past eight b. at half passed either c. in half past eight d. on half past eight 5. if you want to go to the

24、cinema, take .a. bus no. the ninth b. the no. 9 bus c. no. 9 the bus d. no. the ninth bus 6. the greens came to china .a. in 1984 october 27 b. in october 27, 1984c. on 27, 1984 october d. on october 27, 1984 7. the story took place in .a. nineteen centuries b. nineteen centuryc. the nineteenth cent

25、ury d. nineteenth century 8. i was told they would stay in china for .a. one and a half years b. one and a half yearc. one and half years d. one half and one year 9. tomorrow we are going to learn .a. lesson second b. the lesson two c. lesson two d. second lesson 10. i think that the first day of sp

26、ring is .a. twenty-two of march b. twenty-second on marchc. twenty-two in march d. the twenty-second of march 11. letter of the word“ restaurant” is“ n”.a. the nineth b. nineth c. the ninth d. ninth 12. we talked for .a. half a hour b. half hour c. an hour half d. half an hour 13. the bus will leave

27、 at this afternoon.学习必备欢迎下载a. three fifteen b. three and fifteen c. three quarters d. fifty to three 14. the earth is the size of the moon.a. 49 the times b. 49 times c. 49 time d. fourty-nine times 15. it s a ruler.a. two-feet-long b. two feet long c. two-foot-long d. two-foot-long 16. students are

28、 planting trees.a. several hundreds b. several hundred c. five hundreds d. five hundred of 17. to finish quickly.a. no every student wants b. no every student wantc. not every student wants d. not every student want 18. ago, our country was covered by thick forests.a. several million of year b. seve

29、ral million yearc. several million years d. several million of years 19. the weight of the moon is only about of that of the earth.a. one eighty b. one of eighty c. one the eightieth d. one eightieth 20. it s 11:45. yes, it s .a. fifteen past twelve b. fifteen from twelvec. a quarter past eightieth

30、d. a quarter to twelve 21. what date is it. it s .a. july twentieth-first b. of july twenty-firstc. the twenty-first of july d. a quarter to twelve 22. - , please. - it was april 25th.a. how old are you b. what was the date yesterdayc. what time was it d. what day is it today 23. i have things to do

31、. i can _.t playa. many, no more b. a lot of, any more c. much, more d. much, any more 24. i have a paper on my desk.a. little b. lot c. lots d. little of 25. this is .a. the question thirty b. the question thirteen c. thirty question d. question thirteen学习必备欢迎下载 26. of the work has been done.a. two

32、 third b. two three c. two thirds d. two third 27. it s now. let s hurry.a. half passed six b. thirty passed six c. half pass six d. half to seven 28. what s the date today. it s .a. the june fourth b. the fourth of june c. of june the fourth d. fourth june 29. next week we re going to lean .a. unit

33、 5 b. the unit 5 c. unit 5 d. 5 unit 30. do you have much work to do this weekend. yes, i have to write a paper.a. two-thousand-word b. two-thousand-wordsc. two-thousands-word d. two-thousands-words 31. the tree is tall.a. forteen feet b. fourteen feet c. fourteen foot d. fourty foot 32. fifty plus

34、.a. fourty is ninety b. forty is ninety c. thirty is ninety d. fourty is ninety 33. there are students in this school.a. four hundred fifty-two b. four hundreds fifty-twoc. four hundred and fifty-two d. four hundred and fifty two 34. my home is about away from the school.a. three hundred metre b. th

35、ree hundreds metresc. three hundred metres d. three hundreds metre 35. december is and last month is a year.a. the twelveth b. twelveth c. the twelfth d. twelfth 36. of the teachers in the school are from colleges.a. three quarters b. two-third c. two fifth d. two-nineths 37. there are two world war

36、s during century.a. the twenties b. the twentieth c. twenties d. twentieth 39. in the forties, his father served in the new arm（y 新四军）,while this mother学习必备欢迎下载worked in the route army（.八路军）a. the twenty-first lesson b. lesson twenty firstc. the 21th lesson d. lesson 21th 40. he will stay here for .

37、a. one and half month b. one and a half monthc. one months and half d. one and a half months 41. - what s the date today-.- it s .a. nine b. monday c. june 5 d. 11:00 42. - would you like to eat apples. - no, thank you.a. more two b. two more c. two another d. two else 43. he said he would come back

38、 in .a. one or two days b. a or two days c. one and two days d. a day and two 44. - how often do you write to your parents abroad. - .a. twice a month b. second times a monthc. a second time a month d. second a time a month 45. people died in the traffic accidents in the world.a. thousand of b. thou

39、sands of c. ten thousands of d. ten thousand of 46. what is the time. it s4_:2_5_ .a. four twenty-five b. four past twenty-five c. twenty-five to four d. four twenty five 47. mr. smith lives on floor.a. fiveth b. fifth c. the fiveth d. the fifth 48. he began to learn english in his .a. fifty b. fift

40、ieth c. fifties d. fifth 49. his sister was born .a. in 1998, october 21 b. on 1998, october 21c. in october 21, 1998 d. on october 21, 1998 50. when he was , he left home to work in different cities.a. in his twenty b. at his twenty c. in his twenties d. at his twenties 51. i m than you.a. five yea

41、rs older b. fifteen year old c. fifteen years d. fifteen old学习必备欢迎下载 52. - how old are you. -i m .a. fifteen years old b. fifteen year old c. fifteen years d. fifteen old 53. - how many teachers are there in your school.- , but i m not sure.a. hundreds b. hundred c. hundreds d. one hundred 54. about of the books in our school library are written in chinese.a. four-fifth b. four-fifths c. fourth-fifths d. fourths-fifth 55. they planted trees on