1、九年级专题复习之,Number,数 词,中考对数词的考查主要包括以下几个方面： 1.掌握基数词、序数词的构成及用法。 2. 掌握年、月、日、时刻的表达方式。 3.分数、小数的表达及主谓一致。 4.掌握hundred，thousand，million，billion等词的用法。,Learning Aims,数词的分类,数 词,基数词,序数词,表示数目或者数量多少的词。one、two,表示顺序的词，相当于中文中的“第几”。 first、second,基数词的构成,one,two,three,four,five,six,seven,eight,nine,ten,eleven,twelve,thirt
2、een,fourteen,fifteen,sixteen,seventeen,eighteen,nineteen,twenty,thirty,forty,fifty,sixty,seventy,eighty,ninety,a hundred,a thousand,a million,ten million,两位基数词的构成,21,34,57,66,89,twenty- one,thirty - four,fifty-seven,sixty-six,eighty-nine,十位与各位之间要用“-”（连字符）,三位基数词的构成,457,890,608,389,three hundred and e
3、ighty-nine,four hundred and fifty-seven,eight hundred and ninety,six hundred and eight,百位与十位之间要用“and”,基数词的用法,1.表示名词的数量或数目,一个苹果 两块手表 一碗水 三个面包,one/an apple,two watches,a/one bowl of water,three pieces of bread,2.表示年龄,1岁 32岁,one year old,thirty-two years old,表示“在某人几十多岁时”用“ in+物主代词/名词所有格+整十数的复数” 。,在他20多
4、岁时,in his twenties,基数词的用法,3.表示年份,1999年 2000年 2004年 2018,nineteen ninety-nine,two thousand,two thousand and four,two thousand and eighteen,表示 “在几十年代”要用“ in the +逢整十数的复数”,在二十世纪九十年代,in the 1990s,基数词的用法,4.表达电话号码、门牌、房号、页码、编号、公交路线等时，用单数名词+基数词（注意：名词和基数词的首字母要大写）也可用“the+序数词+名词”来表示。,305房间 32页 4号 12路公共汽车 一班 第1
5、课,Room 305,Page 32,Number 4（Four）,Bus No.12,Class One,Lesson One,= the first lesson,（注：在编号时，序号在前用序数词，序号在后用基数词）,基数词的用法,5. 表示时间,顺读法：先时后分,6：45,six forty-five,逆读法：先分后时,9:30,nine thirty,（1）分钟30时，用“分钟+past+时”（几点过几分）,6:10 9:20,ten past six,twenty past nine,（2）分钟30时，用“（60-分钟）+to+（时+1）”（几点过几分）,6:45 1：58 8:55
6、,fifteen to seven,five to nine,two to two,基数词的用法,5.表示时间,当分钟正好是15、30时，用逆读法表示时，可用half、quarter表示分钟。,1：15 3：30 5：45,a quarter past one,half past three,a quarter to six,基数词的用法,6. 表达 “几个半”用基数词,“基数词+ and a half +复数形式 ” 或 “基数词 + 单数/复数形式 + and a half”,五年半 三天半,five and a half years five years and a half,three
7、 and a half days three days and a half,基数词的用法,7.“基数词-单数名词- 形容词”构成合成形容词，有时可用 “基数词+名词所有格” 代替。,一个五岁的男孩 一座800米长的桥 走路20分钟的路程,a five years old boy,an 800 meter long bridge,a twenty minute walk,twenty minutes walk,8.表示长、宽、高、深等意思时用 “数字+单位+形容词” 。,5米深,5 meters deep,基数词的用法,9. 表达在一定基础上再增加几个时，用“another+基数词+名词复数”
8、或“基数词+more +名词复数”（又几个，再几个）。,我们还需要两把椅子。,We need another two chairs. We need two more chairs.,10. 表达“每年/月/天一次”时，用“every+数词+years/months/days” 。,每四年一次,every four years,基数词的位置,位于another，all等词之后 Can you have another two eggs？ 2.位于such，more之前 Can you have two more eggs？ 3.位于last，next，other之前或之后 Mr. Harris
9、 and three other teachers were there. in the last years,序数词的基本构成,first,second,third,fourth,fifth,sixth,seventh,eighth,ninth,tenth,eleventh,twelfth,thirteenth,fourteenth,fifteenth,sixteenth,seventeenth,eighteenth,nineteenth,twentieth,thirtieth,fortieth,fiftieth,sixtieth,seventieth,eightieth,ninetieth
10、,hundredth,two hundredth,两位序数词的构成,第33 第46 第89 第66,thirty-third,forty-sixth,eighty-ninth,sixty-sixth,基变序口诀 基变序，有规律， 词尾常加- th。 一、二、三 特殊记， 词尾字母 t, d, d. 八减 t，九减 e , f 来把 ve 替。 ty 字母作结尾，ty 变成tie . 若是遇上“几十几”， 只变个位就可以。,序数词的用法,1. 表示事物的顺序时用序数词，序数词前须加the。 Monday is the second day of a week.,2.表示“又一、再一”时，用“a/
11、an+序数词+名词单数”,Weve tried three times. Must we try a fourth time？,3.当序数词前已有物主代词或所有格修饰时，不能再用定冠词the或不定冠词a/an,Mrs Smiths second is a girl. This is my third pen.,特殊数字的表达方法,1.倍数的表达方式,一倍 两倍 三倍 六倍,once,twice,three times,six times,一倍用once ，两倍用 twice ，两倍以上用“基数词+ times”,2.分数的表达方式,分子基分母序，分子大于1分母加“s”，带分数在整数后加and,
12、五分之一 三分之二,one fifth,two thirds,二分之一 two and three fourths,a half,3.百分数的表达方式,特殊数字的表达方法,（1）表达“百分之几”时：基数词+percent,80% 100%,eighty percent one hundred percent,80%的牛奶 100%的学生,eighty percent of milk one hundred percent of students,（2）表达“百分之几的”时： 基数词+percent + of+名词复数或不可数名词,概数词的用法,1hundred，thousand，million
13、，billion与dozen与具体的数字one，two或several，some，many等连用时，要用单数形式。,500人 两千本书 几百万棵树,five hundred people,two thousand books,many million trees,2与of连用时，要用复数形式，但前面不能再加数字。,成千上万家工厂,thousands of factories,注意：,分数或百分数作主语时，谓语动词的单复由分数或百分数后的名词决定，当其后是不可数名词时，谓语动词用单数，当其后是可数名词复数时，谓语动词用复数。,Eighty percent of water is polluted
14、. Twenty-one percent of students are from this country.,3.年月日的表达方法,英式英语,美式英语,日月，年,2nd April，1996,the second of April， nineteen ninety-six,月日，年,April 2 ，1996,April the second ， nineteen ninety-six,中考演练,Her grandpa has just had his _ birthday. sixty B. sixtieth C. the sixtieth D. sixties 2. He became
15、a famous writer when he was _. A. in his fifty B. in his fifties C. in fifty years old D. in fifties,B,B,3.Can you imagine the life will be like in _ time? 20 years B. 20 years C. 20-years D. 20 years 4. You will have _ holiday next week. Where are you going? A. a seven-day B. seven- days C. a seven
16、 day D. a seven-days,A,A,5. The boy was so hungry that he ate_ ? three bowls of rices B. three bowl of rice C. three bowl of rices D. three bowls of rice 6. About _ of the workers in the factory were born in the_. A. two thirds;1970 B. two thirds; 1970s C. two third; 1970 D. two third;1970s,D,B,7. M
17、ore than two _ years ago, people knew little about the universe? thousands B. thousand C. Thousands of D. thousand of 8. Today is my mothers _ birthday. I will buy a gift for her. A. fourteenth B. fourteenth C. forty D. fortieth,B,D,9. Boys and girls，please turn to Page _ and look at the _ picture.
18、Fifth ;five B. Five, five C. Fifth, fifth D. Five, fifth 10. -David, how old is your father? -_. And we just had a special party for his _birthday. A. fortieth ;forty B. Forty; forty C. forty; fortieth D. Fortieth; fortieth,D,D,11. The work is too difficult for Mr. Wang to finish in a week. He needs
19、 _ days. more two B. two more C. two another D. another two 12.I think _ should not be allowed to drive . A. sixteen years old B. sixteen- year- old C. sixteen-year-olds D. sixteen-years-olds,B,C,13. John was born _. on June 10,2003 B. in June 10, 2003 C. on 2003, June10 D. on 2003,June 10 14. We ha
20、ve two ears and one mouth, so that we can listen _ we speak。 as twice much as B. twice as much as C. as much as twice D. As much as twice,A,B,1. December is _ and last month of the year. A. the twelfth B. twelfth C. the twelve 2. How many hours do you sleep every night? About _ hours. From 9：00p. m. to 6：00 a. m. A. nine B. nineteen C. ninth D. ninety 3. Christmas Day is on _ of December. A. twentyfive B. the twentyfive C. twentyfifth D. the twentyfifth,A,A,D,4. Please turn to Page _ and take a look at the picture on it. A. the eightieth B. eightieth C. E
