九年级英语第二轮复习数词

1、 表示数目多少或顺序多少的词叫数词，数词分为基数词和序数词。表示数目多少的数词叫基数词；如：twenty, one hundred等; 表示顺序的数词叫序数词。如：second, thirty-first等。 考点二 序数词的构成 序数词一般是以与之相应的基数词尾加-th构成，例如 fourth, tenth,但以下的这些基数词变为序数词时，有特别之处。 1. onefirst , twosecond , threethird , fivefifth , nineninth , twelvetwelfth 2. 以-ty结尾的单词，要先变y为i, 再加-eth. 如： thirty thirt

2、ieth , fiftyfiftieth 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-onetwenty-first one hundred and oneone hundred and first 具体变化如下表所示：考点三 数词的应用 1. 时刻的表示：小时、点钟、分钟、秒钟要用基数词。 2. 年月日的表示（1）“年份”用基数词。如： 1999年nineteen ninety-nine；1900年nineteen hundred； 2000年(the year)two thousand； 1905年nineteen o five；（

3、2）“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 the eighth, nineteen ninety-eight或the eighth of June, nineteen ninety-eight （3）12个月份的写法( ) 3. Five to Five is _. A. 5:05 B.4:05 C. 4:55 D. 5:55( ) 4. Whats the English for 8:30? A. eight and thirty B. eight to thirty C. half past eight D. half e

4、ight( ) 5. The book came out _. A. on May, 2009 B. in May 2009 C. at 2009, May D. for May, 2009( ) 6. Jack was born _. A. in 1975, May 1B. on May 1, 1975 C. at May 1, 1975D. on 1975, May 13. 世纪、年代表示法(在)90年代 (in) the nineties(在)19世纪 (in) the nineteenth century (在)18世纪30年代 (in) the1730s或1730s4. 表示“在某人

5、几十几岁”时，用基数词的复数形式。如: in his thirties在他三十几岁时5编号的表示(1)Lesson One the first lesson 第一课 Line Three = the third line 第3列(2)Bus No.3 the No.3 bus 3路公共汽车(3)表示住所时不用“No”。如： 302房间Room 302(读作:room three o two);(4)如果编号的数词比较长，一般用基数词。如： Page 457 第457页(5)电话号码，用基数词。如： 3855637three eight five five (double five) six t

6、hree seven( ) 7. My family moved to Dongguan _. A. in 1990s B. in the 1990 C. in the 1990s D. on the 1990s( ) 8. My uncle began to work in this school_. A. on his forty B. at age of fortieth C. when he forty D. in his forties( ) 9. What should we do now, Mr Clark? Please turn to Page _ and look at t

7、he _ picture. A. Twelve; fifth B. Twelfth; fifth C. Twelve; five D. Twelfth; five( ) 10. Unit _ is easy but _ unit is difficult. A. Sixth; seven B. Six; seven C. Sixth; the seventh D. Six; the seventh6分数的表达分数的表达分子用基数词，分母用序数词分子用基数词，分母用序数词。如：。如：1/3 one third; 1/9 one ninth分子大于分子大于“1”，分母则加，分母则加“s”。 如：如

8、：2/3 two thirds； 7/8 seven eighths另外还有一些特殊的词，如：另外还有一些特殊的词，如：1/2 a(one)half; 1/4 one fourth或或a(one)quarter;3/4 three fourths或或three quarters ( ) 11. About_of the students like keeping diaries in English in our class. A. two fifth B. two fifths C. second five D. two five( ) 12. Therere many students i

9、n our school. _ of them _ girls. A. One third; is B. One third; are C. Two thirds; is D. One thirds；are7. 表示有小数的词用基数词，小数点读point, 0读o 或zero, 小数点后的数字按个位基数词依次读出即可。 如：7.05 seven point o five 3.14159 three point one four one five nine8表示百分数, 百分数由基数词+ percent 来表示。如：50：fifty percent 0.8： zero point eight p

10、ercent 考点四 其它用法 1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-meter-long bridge 一座800米长的桥2基数词meter(s)kilometer(s)kilo(s) + long/high/tall /deep /away等。如：My home is five kilometers away from our school. 我家离学校五公里远。The Yangzi River is 6,300 kilometers long 长江长6300公里3. hundred, thousand, milli

11、on等表示数量的词前面如有基数词，用来修饰后面的名词表示精确数量时，本身不用复数形式，名词才用复数形式。如：两千人 two thousand people; 三百米 three hundred meters但在表示含糊数量时要用复数形式，并要与of 连用。如：hundreds of 数百的thousands of 数千的或成千上万的millions of 数百万的如：数千人thousands of people 试比较：two hundred books / hundreds of booksthree thousand trees / thousands of trees ( ) 13. K

12、ate is _ girl. Shes very happy at school. A. a eighteen-year-old B. an eighteen-year-oldC. an eighteen-years-old D. a eighteen-years-old( ) 14. How tall is the wall?Its _.A. ten meters tall B. ten-meter tall C. ten meter tall D. ten-meters tall( ) 15. When he arrived at the airport, Lee Minho found

13、that fans were waiting for him there.A. hundred B. hundreds C. hundred of D. hundreds of( ) 16. Food Safety has become one of the hottest topics recently. Yeah, it receives _ Internet hits(点点击击) a day. A. thousands B. thousand of C. thousands of D. ten thousands4. 序数词在使用时，一般在其前面加定冠the或物主代词等限定词。如：the

14、 first time 第一次 his second son他的第二个儿子5. 如果序数词前加定冠词a/an，则表示“又一，再一”。如：Ive tried twice. And I want a third try. 我已经试过两次了，还想再试一次。( ) 17. Susan lives on the _ floor and we are neighbors. A. four B. fourth C. fourteenD. forty( ) 18. To many foreigners, Guangzhou has become their _ home town. A. two B. sec

15、ond C. the second D. twice( ) 19. Would you like to try _ time? A. two B. second C. a two D. a second6. 分数作主语时，谓语动词要根据分数后的名词来确定，如果不可数名词就要用单数，是可数名词则用复数。如：One third of the students in our class have been to the Great Wall. Four fifths of the water is drunk by the children.7. 表示时间、距离、价格、重量、数目、数学运算等的词或短

16、语做主语时，表示整体概念，谓语动词用单数。如：Ten years has passed. 10 kilometers is a long way to him. He is too tired.( ) 20. _ of the coats _ made of cotton. They feel comfortable. A. Two-thirds; is B. Two-thirds; are C. Two-third; is D. Two-third; are( ) 21. In that factory, _ of the work _ done by machines. A. fourth

17、 five; is B. four fifths; are C. four fifths; is D. fourth five; are( ) 22. Two months _quite a long time. Yes, Im afraid that he will miss a lot of lessons. A. is B. are C. was D. were考点五 熟记一些重要的表达 专题专题 5 5 数词数词 1. 2013湛江湛江 What day is it today? Its Monday, and its my _birthday. A. fifteen Bfifteenth Cthe fifteen Dthe fifteenth22013安顺安顺 To finish the task, weve tried three times, and after dinner well try _ time. A. the fourth Ba fourth Cfourth DFour32013天津天津 Where is Class_？ Its on the _ floor. A. Six; third BSixth; third C. Six; three Dsi