初中英語數(shù)詞專項(xiàng)

1、 數(shù)詞講解專項(xiàng)練習(xí)1 數(shù)詞的講解一、定義：表示數(shù)目或順序二、分類：分為基數(shù)詞和序數(shù)詞兩種。表示數(shù)目或數(shù)量多少的詞叫基數(shù)詞；表示數(shù)目順序的詞叫序數(shù)詞。三、基數(shù)詞的構(gòu)成：1）1-12的基數(shù)詞是獨(dú)立的單詞，即： one ，two ，three ，four ，five ，six ，seven ，eight ，nine ，ten ，eleven ，twelve 。2）13-19的基數(shù)詞以-teen 結(jié)尾。如： fourteen ，seventeen 等，但13，15，18較特殊， 13thirteen, 15fifteen, 18eighteen 。3）20-90的整十位均以-ty 結(jié)尾。如： sixt

2、y ，ninety ，但20，30，40，50，80較特殊， 20twenty, 30thirty, 40forty, 50fifty, 80eighty 。4）十位數(shù)與個(gè)位數(shù)之間要加連字符號(hào)"-" ，如：28-twenty-eight ，96-ninety-six 。5）百位和十位（若無十位則和個(gè)位）之間加and ，如：148one hundred and forty-eight406four hundred and six6）hundred （百），thousand （千），million （百萬），billion （十億）等前面即使有具體的數(shù)詞，several, so

3、me, many也不能在它們的后面加-s 。如：six hundred， eight million。如果表示不確定數(shù)目時(shí)，用hundreds of /thousands of /millions of /billions of +名詞復(fù)數(shù), 前面不能再加數(shù)字。7）1000以上的數(shù)字，從后往前數(shù)每三位加一個(gè)逗號(hào)" ，" 第一個(gè)逗號(hào)前為千（thousand ），第二個(gè)逗號(hào)前為百萬（million ），第三個(gè)逗號(hào)前為billion （十億）。英語中無“萬”這個(gè)詞，我們可以用" 幾十個(gè)千（thousand ）" 表示幾萬，" 幾百個(gè)千（thousan

4、d ）" 表示" 幾十萬" 。如：2，510two thousand five hundred and ten84，296eighty-four thousand two hundred and ninety-six274，350two hundred and seventy-four thousand three hundred and fifty。四、序數(shù)詞的構(gòu)成：1）序數(shù)詞一般是以與之相應(yīng)的基數(shù)詞尾加-th構(gòu)成，如： fourth, tenth, 但以下的這些基數(shù)詞變?yōu)樾驍?shù)詞時(shí)，有特別之處。One first, two second, three third

5、, fivefifth, nine ninth, twelve twelfth2）以_ty 結(jié)尾的單詞，要先變y 為i, 在加-eth. 。如：thirty thirtieth, fiftyfiftieth3）以one, two, three 等結(jié)尾的多位數(shù)詞，要將個(gè)位數(shù)變成序數(shù)詞。如：twenty-one twenty-first, one hundred and oneone hundred and first注意：序數(shù)詞前常用定冠詞，有時(shí)還可以用不定冠詞 a/an 則表示 " 又一 " 的意思。（沒有具體X圍的限制）如：Mr. Brown has a second c

6、ar. 布朗先生另外還有一輛車。He has tried a second time. 他又嘗試了一次。五、數(shù)詞的應(yīng)用1)時(shí)刻的表示:小時(shí)、點(diǎn)鐘、分鐘、秒鐘要用基數(shù)詞。“幾點(diǎn)鐘”用基數(shù)詞加 o'clock 。 o'clock 可省略。如:5點(diǎn)鐘 -five (o'clock ) “幾點(diǎn)過幾分 ” , 30分鐘 " 用介詞 past 。如:7:15 fifteen/ a quarter past seven 7:30 half past seven“差幾分幾點(diǎn)”用介詞 "to" 。如:7:40 twenty to eight 7:45 fif

7、teen / a quarter to eight 。日常生活中的時(shí)間讀法常常簡化,直接按基數(shù)詞的順序讀。如:7:05 seven o five 7:15 seven fifteen。2)年月日的表示:年份用基數(shù)詞,如:1999年 nineteen ninety-nine 1900年 nineteen hundred2000年 two thousand 1905年 nineteen o five;年用基數(shù)詞, 日用序數(shù)詞。如:1998年 6月 8日寫作:June 8, 1998;讀作:June the eighth, nineteen ninety-eight或 the eighth of J

8、une, nineteen ninety-eight。3)世紀(jì)、年代表示法,如:(在) 90年代 (in) the nineties(在) 19世紀(jì) (in) the nineteenth century(在) 18世紀(jì) 30年代 (in) the 1730s或 in the 1730's4)編號(hào)的表示:基數(shù)詞放到名詞的后邊 , 該名詞一般要大寫;序數(shù)詞放到名詞的前面,加定冠詞。 Lesson 1/ the first lesson第一課 Row 3/ the third row 第三排 Bus No. 3=the No. 3bus 3路公共汽車。表示住所時(shí)不用 No .如:Room

9、302讀作:room three o two 302房間。如果編號(hào)的數(shù)詞比較長,一般用基數(shù)詞。如:Page 457 第 457頁。,用基數(shù)詞,如:3855633-three eight double five six double three。5)分?jǐn)?shù)的表達(dá):分子用基數(shù)詞,分母用序數(shù)詞,分子大于 "1" ,分母則加 "s" 。如:1/3 one third 2/3two thirds1/2 a / one half 1/4one fourth或 a/ one quarter3/4 three fourths或 three quarters6) 表示有小數(shù)

10、的詞用基數(shù)詞,如:5.5 five point five12.135 twelve point one three five7)表示百分?jǐn)?shù),如:5 :five percent 0.8 zero point eight percent注意:分?jǐn)?shù)、百分?jǐn)?shù)與主謂一致當(dāng)分?jǐn)?shù)、百分?jǐn)?shù)修飾可數(shù)名詞的復(fù)數(shù)時(shí), 謂語動(dòng)詞用復(fù)數(shù)形式 ;當(dāng)分?jǐn)?shù)、百分?jǐn)?shù)修飾不可數(shù)名詞時(shí),謂語動(dòng)詞用單數(shù)形式。如:Eighty percent of the students in our school e from Henan.我們學(xué)校百分之八十的學(xué)生來自某。Three fourths of the students in my cl

11、ass are interested in English.我們班四分之三的學(xué)生對英語感興趣。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:基數(shù)詞+單數(shù)名詞+形容詞構(gòu)成合成形容詞。如:a five-year-old boy 一個(gè)五歲的男孩an 800-metre-long bridge 一座 800米長的橋girls 400-metre relay race 女子 400米接力具體數(shù)詞+metre (s )/kilometre (s )/kilo (s ) long /high /tall /de

12、ep / away 等。如:The Changjiang River is 6, 300 kilometres long.長江長 6300公里。表示“幾十歲”用基數(shù)詞的復(fù)數(shù)形式,如:in his thirties 在他三十幾歲時(shí)倍數(shù)的表達(dá):一倍用 once ,兩倍用 twice ,兩倍以上用基數(shù)詞+times 。如: five times 5倍補(bǔ)充:倍數(shù)的表示法:1. 表示“幾倍大小(長短;數(shù)量) ” ,由“倍數(shù) + the size(length, amount width age height.) +of ”結(jié)構(gòu)組成。如:The earth is forth-nine times the

13、size of the moon. 地球的大小是月亮的四十九倍。2. 表示“比大幾倍” ,由“倍數(shù) +形容詞(副詞)比較級(jí) + than +被比較部分”結(jié)構(gòu)組成。如:This box is three times bigger than that one.這個(gè)箱子比那個(gè)箱子大三倍。 (這個(gè)箱子是那個(gè)箱子的四倍。 )數(shù)詞練習(xí)( ) 1. Every year, _ people go to visit their factoryA. a thousand of B thousands C. thousand of D. thousands of( ) 2. Tom has just finish

14、ed writing a _ article.A. nine-hundred-words B. nine-hundreds-wordC. nine-hundred-word D. nine-hundreds-words( ) 3._ people lost their homes in Japan s earthquake.A. Two thousands B. Thousand C. Thousands of D. Thousand of( ) 4. Last year, I visited a chemical factory in Baise, there are about _ wor

15、kers in it.A. six thousands B. six thousand C. six thousands of D. six thousand of ( ) 5. About _of the students in our class were born in the_.A. two-thirds, 1990s B. two-thirds, 1990C. two-third, 1990s D. two-third, 1990( ) 6. Nowadays of business letters are written in English.A. two third B. two

16、 thirds C. two three C. second three( ) 7. If a=4, b=5, whats the answer to the question “ a + 2ab +1 =?” A. Forty-fifth B. Forty-fiveC. 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 the boys woul

17、d take part in the talent show.A. three five B. three fives C. thirds fifths D. three fifths( ) 10.Tomorrow is the boys _ birthday.A. seventh B. 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, wher

18、e can I buy a jacket? You can go to the Men's Wear Section on the_ floor.A. two B. twice C. second D. 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

19、 C. the 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. eightieth C. 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

20、.You can see _ if you go out 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 first C. first D. twice( ) 19.More than ninestudents are doing sports now.A .hundreds B. h

21、undred of C. hundred D. hundreds of( ) 20. Now, everybody, please turn to Page _ and look at the _picture. A. Fifth; five B. Five; fifth C. 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

22、milk cup( ) 22. The government of Chongqing is building_ cheap and good houses for the people.A. thousand B. thousands C. thousand of D. thousands of( ) 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 o

23、ur grade.A. three hundreds and forty-five B. three hundred 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 e to my office _.A. at half past eight B. at half passed either C. in hal

24、f past eight D. on half past eight( ) 5. If you want to go to the 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

25、 place in _.A. nineteen centuries B. nineteen centuryC. the nineteenth century 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.

26、 the Lesson Two C. Lesson Two D. second lesson( ) 10. I think that the first day of spring 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

27、 talked for _.A. half a hour B. half hour C. an hour half D. half an hour( ) 13. The bus will leave at _ this afternoon.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( )

28、15. Its a _ ruler.A. two-feet-long B. two feet long C. two-foot-long D. two-foot-long( ) 16. _ students are 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 want

29、s D. Not every student want( ) 18. _ ago, our country was covered by thick forests.A. Several million of year B. Several 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 eight

30、ieth D. one eightieth( ) 20. Its 11:45. Yes, its _.A. fifteen past twelve B. fifteen from twelveC. a quarter past eightieth D. a quarter to twelve( ) 21. What date is it? Its _.A. July twentieth-first B. of July twenty-firstC. the twenty-first of July D. a quarter to twelve( ) 22. - _, please? - It

31、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. I cant play _.A. 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( ) 2

32、5. This is _.A. the question thirty B. the question thirteen C. thirty question D. question thirteen( ) 26. _ of the work has been done.A. Two third B. Two three C. Two thirds D. Two third( ) 27. Its _ now. Lets hurry.A. half passed six B. thirty passed six C. half pass six D. half to seven( ) 28. W

33、hats the date today? Its _.A. the June fourth B. the fourth of June C. of June the fourth D. fourth June( ) 29. Next week were going to lean _.A. unit 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-thous

34、and-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 _.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 hundr

35、ed 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. three hundredsmetresC. three hundred metres D. three hundredsmetre( ) 35. December is _ and last month is a year.A. the twelveth

36、 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 wars during _ century.A. the twenties B. the twentieth C. twenties D. twentieth( ) 39. In the forties, his father serv

37、ed in the New _ Army（新四軍）,while this motherworked in the _ Route Army.（八路軍）A. the twenty-first lesson B. Lesson Twenty FirstC. the 21th lesson D. Lesson 21th( ) 40. He will stay here for _.A. one and half month B. one and a half monthC. one months and half D. one and a half months( ) 41. - Whats the

38、 date today? - Its _.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 e back 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

39、 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. Thousands of C. Ten thousands of D. Ten thousand of( ) 46. What is the time? Its _. (4:25)A. four

40、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. fiftieth C. fifties D. fifth( ) 49. His sister was born _.A. in 1998, October 21 B. on

41、 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. Im _ than you.A. five years older B. fifteen year old C. fifteen years D. fifteen old( ) 52. -

42、How old are you? - Im_.A. fifteen years old B. fifteen year old C. fifteen years D. fifteen old( ) 53. - How many teachers are there in your school? - _, but Im 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 the farm last year