中考英语专题复习专题专题4数词.doc

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1、初三英语专题复习四 数词【考点解析】基数词：表示人或事物数量多少的词。序数词：表示人或事物的顺序的词。一、基数词1.基数词的读法1)1-12：one two three four five six seven eight nine ten eleven twelve2)13-19： 词尾加-teen：thirteen fourteen fifteen sixteen seventeen eighteen nineteen3)20,30,40,50,60,70,80,90： 逢十词尾加-ty：twenty thirty forty fifty sixty seventy eighty ninet

2、y4)21-99： 在十位与个位之间加连字符构成. 21- twenty-one 99-ninety-nine5)101-999：先说几百，再加and，再加末尾两位数或个位数。 101-one hundred and one 238-two hundred and thirty-eight6)1000以上的数：先将数字从右往左数,每三位数用一个逗号隔开，从右往左第一个逗号表示 “千”读thousand第二个逗号表示 “百万”读million 第三个逗号表示 “十亿”读billion18,657,421-eighteen million, six hundred and fifty-seven

3、thousand, four hundred and twenty-one.二、序数词基数词变序数词口诀： 基变序，有规律，词尾要加th ，一二三，特殊记，词尾分别tdd (first second third ) 八去t，九去e，ve要用f替，ty变作tie，再加th莫忘记， 若遇几十几，只变个位就可以。三、数词的应用1.表编号 结构：名词(首字母要大写) + 基数词 = the +序数词 +名词 Lesson One = the first lesson注：有些编号，一般仅用第一种表达法。 Room 101 101号房间2.序数词前一般加定冠词the 但序数词前与不定冠词a /an 连用时

4、，表示 “又一，再一” Youve done it three times .Why not try _ fourth time ? A. a B. an C. the D. /3.数词前加every，表示每/每隔 every ten days = every ninth day 每十天(每隔九天) 注：every +基数词 +复数名词 = every + (序数词-1) +单数名词4.基数词的复数形式表示年代和年龄 1)表示年代: in the + 年份的复数 在几世纪几十年代 在十九世纪七十年代： _ 2)表年龄: in ones + 整十的复数 表示在某人几十岁时 在他四十岁时： _5.

5、hundred / thousand /million /billion 1).若hundred / thousand /million /billion 前有基数词时，其后不加s，也不加of 。若没有时，既加s 也要带of . Every year _ visitors come to China. There are two _ students in our school. A. thousand B. thousands C. thousands of D. thousand of 2).若其前有a few 、many、several 修饰时，通常用复数，后接of. 3).若名词前有t

6、he修饰时，用单数，后接of Two _ the students in our school are from the countryside . A. hundred B. hundred of C. hundreds of D. hundreds6.几个半的表达法： 基数词 + and + a half +名词复数 = 基数词 +名词(单数/复数) +and +a half two and a half hours = two hours and a half7.时刻表达法： 1)整点:：基数词 + oclock 2)几点几分： A).直接读法:：先读小时，后读分钟 3:25 - thr

7、ee twenty-five B).间接读法： a)30分钟. 分钟+ past + 小时 3：25 -twenty-five past three b)30分钟. ( 60-分钟 )+ to + (小时数+1) 3:55 - five to four c) 30 分钟 = half 15分钟=a quarter 45分钟= three quarters 3:30 -half past three 3:15-a quarter past three 3:45 -a quarter to four8.日期表达法：结构：1).月，日，年 (日用序数词,年用基数词) 注:年份的读法:：先读前两位数，

8、再读后两位数。读日时要加the 1900-nineteen hundred 1807-eight and seven (eight o seven) 2008-two thousand eight 2007年3月21日.- March the twenty-first ,two thousand and seven.2).日 月 年 (the +序数词+of +月, 年) 2007年3月21日-the twenty-first of March, two thousand and seven.9.分数词的表达法：1).结构: a).分子用基数词,分母用序数词 b).当分子大于1时，分母加复数

9、3/4- three fourths (three-fourths)2).注意：a).分数词的几种特殊形式 1/3one third = a third 1/4one fourth = a quarter 1/2one second = a half3/4three fourths = three quartersb).分数词作主语时，谓语动词根据分数词后面的名词来确定 Two fifths of the milk _(be ) drunk by Tom . One third of the students _(be )girls . 【链接中考】( ) 1. The park is far

10、 away from here indeed. Its about _ walk.A. a three hourB. a three hoursC. a three-hoursD. a three-hour( ) 2. - Forty students in this class? Please tell me something about them.- OK. _ of them are exchange students , and all these twenty are local students.A. MostB. ManyC. FewD. Half ( ) 3. Sam enj

11、oys collecting. He has collected over three _ stamps.A. hundredB. hundredsC. hundred ofD. hundreds of( ) 4. About _ of the earth _ covered with water, but we have less and less available fresh water. A. three-fourth, isB. three-fourths, isC. three-fourth, areD. three-fourths, are( ) 5. Susan lives o

12、n the _ floor and we are neighbours. A. fourB. fourthC. fourteenD. forty( ) 6. _ of the coats _ made of cotton. They feel comfortable. A. Two-thirds, isB. Two-thirds, areC. Two-third, isD. Two-third, are( ) 7. A _ boy can sing the English song very well.A. ten-year-old  B. ten years old  C

13、. ten-year-old   D. fifth years old( ) 8. -How many students are there in your class?  - _.A. Twenty nine   B. Thirty and two   C. Forty-five   D. fifties( ) 9. _ of the surface of the earth is covered with water.    A. First third 

14、60;   B. Two thirds    C. One three     D. Two three( ) 10. The number 4,123 is read _. A. four thousand one hundred and twenty-three  B.four thousand and one hundred twenty-three C. four thousand and a hundred and twenty-three D. four thou

15、sands a hundred and twenty-three( ) 11. The old professor still works hard though he is _.A. in his sixty  B. in his sixties   C. in sixties   D. in the sixty( ) 12. This classroom is _ ours.A. three times big as  B. as three times big as C. three times as big as D. as

16、big three times as( ) 13. Our school is not very big. There are only _ students.A. nine hundreds of B. nine hundred  C. nine hundreds   D. nine hundred of( ) 14. -How many new words are there in _ lesson? -There are only _.A. five; fifth  B. fifth; five  C. the fifth; the fi

17、ve  D. the fifth; five( ) 15. Three hundred thousand one hundred and seventy means _.A. 3,170   B. 3,117  C. 300,170   D. 30,170( ) 16. Its 7:17 is read _.A. seven and seventeen B. seven seven C. seven one seven  D. seven seventeen( ) 17. There are _ days in a year

18、.A. three hundred sixty and five     B. three hundred and sixty-fiveC. three hundreds and sixty-five    D. three hundred sixty-five( ) 18. We have known each other for _.A. a year and half  B. a year with half   C. a year and a half   D. a

19、year with a half( ) 19. - Would you like some fruit, madam?    - Oh, yes. _, please.     A. 5 kilo bananas   B. 5 kilos of bananas   C. 5 kilo of bananas   D. 5 kilos of banana( ) 20. - What is 1/2 and 1/3?     - Its _.    A. 2/5    B. 1/5     C. 5/6     D. 4/66