掌握基数词和序数词的用法.ppt

1、数词（一）,主讲老师： 黄冈 吴静,基数词与序数词,数 词,基数词,序数词,数量,顺序,本专题主要讲解：基数词和序数词的用法,重点内容：,概述数词,1. 112, 独立成词。 one two three four five six seven eight nine ten eleven twelve 2. 13-19, 由39 + teen构成。 14fourteen 16-sixteen 17-seventeen 19nineteen 特殊拼写: 13 thirteen 15-fifteen 18eighteen 3. 2090, 以-ty结尾。 20twenty 30-thirty 40f

2、orty 50fifty 80-eighty 60-sixty 70-seventy 90ninety 4. 2199， 两位数，十位与个位之间有 “”。 21 twentyone 55 fiftyfive 99 ninetynine 5. 101999，三位数，百位与十位/个位之间加and。 101 one hundred and one 840 eight hundred and forty 693 six hundred and ninety-three,基数词的构成,5,29,431,500,7,6,thousand,hundred,million,billion,and,6. 1，0

3、00以上数目,从右向左每三位用“，” 分开,分别读为thousand , million, billion,基数词的构成,1、表示具体数目,hundred, thousand, million不用复数. 表示不确定数目,用复数。即hundreds of(数百), thousands of(数千), millions of(数百万)+ 名词复数, 可以用many/several修饰，但不能与具体数目连用。 (1) Our country has a population of 1,300 million people. (2) There are three thousand students

4、in our school. (3) After the war, thousands of people became homeless. (4) Several / Many thousands of trees must be planted every year.,基数词的用法,学学吧,7,2、 “几十”的复数形式可以表示： 几十多岁 - in + ones + 数词复数 年 代 - in + the +数词复数 (1) He died in his forties四十多岁 (2) In the nineties, most people go to work by bike. 90年

5、代,3、“基数词+名词” 的合成形容词作定语， 中间有连字符“”,当中的名词用单数。 a 3 year old girl a seven-day holiday,4、表计量- “基数词+度量单位+形容词” The classroom is 7 meters long, 6 meters wide and 3 meters high.,学学吧,5. 时刻表示法 顺读法-先时后分, “几点几分” 9:30 nine thirty 6:21 six twenty-one 逆读法-先分后时1. 几点钟 5:00 读作 five oclock 2. 几点过几分 five past seven 七点过五分

6、half past six 六点半a quarter past eight 八点过一刻3. 几点差几分 ten to eight 差十分八点a quarter to twelve 差一刻十二点twenty to six 差二十分六点,学学吧,(广东) It is said that there will be _ people visiting the exhibition. A. five hundred B. five hundreds C. five hundred of D. hundreds,解析,分析句子意义可知，本题考查数词修饰名词的 应用。题中名词前用数词修饰时，表示单位的数词

7、 不能用复数形式。故正确答案为A。,经 典 例 题（1）,(定西）_ girls took part in the Happy Girl Competition but only few of them succeeded. A. Million of B. Many million of C. One million of D. Millions of,解析,million后跟of时一定要用复数形式， 表示成千上万的，许多的。,经 典 例 题（2）,11,序数词的构成,(1) 13, first, second, third 。 (2) 419, 相应基数词+th, 特殊拼写:fifth,

8、eighth, ninth, twelfth。 (3) 2090, y变成ie +th,如twentieth。 (4) 2199, 只把个位的基数词变成序数词 如twenty-first。 (5) 序数词缩写-数字最后两字母 如1st, 2nd, 3rd ,4th,学学吧,12,基变序,有规律, 一、二、三，特殊记，面目全非要注意， 加th从4起， 八少“t”，九去“e”， “ve”要用“f”替，(five, twelve) 见“y”变成“i”和“e”，词尾加上“th”， (twenty, thirty,ninety) 若是遇到几十几，只变个位就可以。 序数词缩写记清楚,数字后跟两字母。,(序

9、数词构成规律),13,序数词的用法,(1)序数词作定语，前面要加the； The first truck is carrying a food basket John lives on the fifteenth floor She is my first English teacher. (2)有时加a/an，“再一”，“又一” 的意思 Well have to do it a second time Shall I ask him a third time？ They had a second child in 1988.,学学吧,(重庆)I got a beautiful bike on

10、 _ birthday. I like it very much. Afifteenth Bfifteen Cmy fifteen Dmy fifteenth,解析,考查序数词作定语。句意为“在我十五岁生日 的时候，我得到了一辆漂亮的自行车，我非常 喜欢它。”根据句意可知是第十五个生日，序数 词作定语时，其前要加the或形容词性的物主代词。,经 典 例 题（3）,(聊城) Please turn to page _ and look at the _ picture in this unit. A. twentieth; one B. twenty; one C. twentieth; fir

11、st D. twenty; first,解析,很显然，本题考查数词的用法。 句意为：请翻到第20页，看这个单元的第一 幅图片。表示顺序时使用“名词+基数词” 或使用“the + 序数词 + 名词”，因此D项为正确答案。,经 典 例 题（4）,(自贡)Have you seen the CCTV news on TV? Yes, _ children had a good festival on the _ Childrens Day. Amillions of; sixty Bten millions; sixtieth Cmillions of; sixtieth,解析,基数词之后用million的单数形式， 再根据句意可知是第六十个