精品家教辅导-(初中英语语法)数词8700.pdf

四、数词： 1、分类：数词有基数词和序数词两种英语的数词可以作句子的主语、宾语、表语和定语 2、基数词：表示数目的词叫基数词 1、英语中常用的基数词有： 1 2 3 4 5 6 7 8 9 10 11 12 one two three four five six seven eight nine ten eleven twelve 13 14 15 16 17 18 19 thirteen fourteen fifteen sixteen seventeen eighteen nineteen 20 30 40 50 60 70 80 90 100 twenty thirty forty fifty sixty seventy eighty ninety one(a) hundred 23 35 101 twenty-three thirty-five one hundred and one 1000→one(a) thousand,10000 → ten thousand,100000 → one hundred thousand ,1000000→one million,10000000→ten million,100000000→one hundred million, 108→one hundred and eight, 146→one hundred and forty-six, 500→five hundred , 1001→one thousand and one, 1813→one thousand eight hundred and thirteen. 2、 [注]： (1)百位与十位之间要加 and； 十万位和万位,亿位和千万位之间通常也要加 and。

(2)英语用千、百万等单位计数,大数字从右向左看,每隔三位划一逗号,倒数第一个逗号之前要用 thousand,倒数第二个逗号之前要用 million,倒数第三的逗号之前要用 billion 表示 (3) hundred、 thousand、 million 作数词时,不用复数,前面可以加上 one, two, …等其它数词用作名词时复数表示“成…上…”,后面必须要有 of,前面可以加上 some,many,several 等词如：five hundred(五百),hundreds of(成百上千的),ten thousand(一万),thousands of(成千上万的),millions of(成百万的) 3、序数词：表示顺序的数词叫序数词 1、 英语的序数词基本变法： (1) 一般在基数词后加 th,(2)-ve 结尾的改为-fth,(3)-ty 结尾的改为-tieth,(4)熟记特殊词 2、序数词如下： 1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th ※first ※second ※third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth 13th 14th 15th 16th 17th 18th 19th thirteenth fourteenth fifteenth sixteenth seventeenth eighteenth nineteenth 20th 30th 40th 50th 60th 70th 80th 90th 100th twentieth thirtieth fortieth fiftieth sixtieth seventieth eightieth ninetieth one undredth 21st 22nd 23rd 35th 101st twenty-first twenty-second twenty-third thirty-fifth one hundred and first 1000th→one thousandth, 1000000th→one millionth., 第703→the seven hundred and third, 第 5480→the five thousand four hundred and eightieth. 3、注：(1)两位以上的序数词仅个位数部分用序数词,其余部分仍用基数词。

如：thirty-sixth, (2) 使用序数词时一般加定冠词 the.如：I’m in the third grade. (3) 序数词作 “几分之几” 讲时,有复数形式 如： 1/5→one fifth ; 2/3→ two thirds ; 4/7→ foursevenths ; 1/2→ a half ; 1/4→a quarter ; 3/4→ three quarters ; 50%→ fifty hundredths ( fifty per cent). 4、数词的用法： 1、表示年份：2002:twentythousand and two ; 1976 : nineteen seventy-six. 2、 表示日期： 12 月 1 日:Dec.1st 或 the first of December； 2002 年 11 月 8 日: Nov. 8th, 2002. 3、 表示时刻： 5：15→five fifteen或a quarter past five ; 8：30→ eight thirty或half past eight ; 10：45→ ten forty-five 或 a quarter to eleven. 4、表示编号：Room 105→Room one 0 five; Bus No.13→Bus Number Thirteen; P.5→Page Five; Tel.No.7658659→Telephone Number seven-six-five-eight-six-five-nine 5、小数的读法：5.7→five point seven, 0.16 →zero point one six. 6、 “半”的表达： 1/2→half, 半小时→half an hour, 1.5 小时→one and a half hours 或 one hour and a half. 7、 序数词前面加 the 时,表示顺序,加 a/an 时表示 “再一、 又一” 。

如： The third lesson is rather difficult.(第三课相当难)/ Shall we read the text a third time?(我们把课文读第三遍,好吗？) 数词 一、基数词的写法和读法 Ⅰ. 你能用英语写出下面的数字吗？ 1. 869 2. 104 3. 1,230, 618 4. 6,666,666,666 Ⅱ. 单项选择 ( ) 1. Last year girls took part in the competition but only few of them succeeded. A. ten millions B. millions of C. ten million of D. ten millions of ( ) 2. — Can you write the number one million, seven hundred and fifty-five thousand, six hundred and forty-six? — Yes, it is . A. 1,755,646 B. 10, 755, 646 C. 17,055,646 D. 1,705,646 二、考查序数词的用法 Ⅰ. 根据括号内的汉语提示完成句子，每空词数不限。

1. December is (十二) month of the year. 2. Why do it (第二) time? Let me give you a hand this time. 3. The (第六) question is much more difficult than this one. Ⅱ. 单项选择 ( ) 1. — How old is your son? —. We had a special party for his birthday last Sunday. A. Nine; nine B. Nine; ninth C. ninth; ninth D. Ninth; nine ( ) 2. — Although you failed four times, I hope you can have try. — Thank you, I will. A. the fifth B. a fifth C. the fourth D. a fourth 【指点迷津】 1. 基数词变序数词：一二三要全变，其他-th 加后面，8 去 t，9 去 e，5 和 12 ve 变 f，ty 要变 tie。

2. 序数词在使用时，通常前面要加定冠词 the，但是如果序数词前出现不定冠词 a / an，则表示“再一、又一” 三、考查分数 Ⅰ. 写出下列分数 1. 五分之四 2. 二分之一 3. 四分之三 4. 一个半小时 Ⅱ. 单项选择 ( ) 1. of the students in this school is 2000, and of them are girls. A. The number; first fourth B. The number; one fourth C. A number; one second D. A number; three quarters ( ) 2. is enough for me. A. One and a half hour B. One hour and half C. One and half hour D. One and a half hours 【指点迷津】 1. 分数的写法：英语分数不费事， “母序子基”四个字。

分子若是大于一，分母还须加-s 2. 当分数后面接名词时，如果分数表示的值大于 1，名词用复数，小于 1，名词用单数 四、考查年代、几十来岁、年、月、日和时刻的表达法 Ⅰ. 单项选择 ( ) 1. — What is the date today? — It’s . A. Thursday B. June the sixteenth C. the best day D. Monday ( ) 2. — When were you born in Shanghai? — . A. In January 1st, 1995 B. On January 1st, 1995 C. On 1995, January 1st D. In 1st January, 1995 ( ) 3. He began to work there in his . A. fifties B. fifty C. fiftieth D. the fiftieth ( ) 4. It’s ten to ten. We can also read it . A. nine fifteen B. nine fifty C. ten past ten D. ten ten Ⅱ. 根据括号内的汉语提示完成句子。

1. My grandpa joined the party (在 20 世纪 30 年代). 2. Every day he begins to do his homework at (7:10). 【指点迷津】 1. 英语中年月日的表达法和汉语中的不同，年在后，月日在前，如 July 4th, 1973还要注意单纯年的表达法：一般分成两半来读，如 1998 nineteen ninety-eight，但有一些比较特殊，如 2000 two thousand；2008 two thousand and eight 等 2. 时刻的表达法一般有三种：一种是按顺序用基数词读，如：6:15 six fifteen；一种是在半小时以内（包括半小时） ，用分钟+past+小时，如 6:15 fifteen past six；另一种是超过半小时，用（60﹣分钟）+to + (小时+1)，如：6:55 five to seven 3. in the + 年的复数，表示年代；in one’s + 逢十的基数词复数，表示在“几十来岁” 答案：一、Ⅰ. 1. eight hundred and sixty-nine 2. one hundred and four 3. one million, two hundred and thirty thousand, six hundred and eighteen 4. six billion, six hundred and sixty-six million, six hundred and sixty-six thousand, six hundred and sixty-six Ⅱ. 1-2 BA 二、Ⅰ. 1. the twelfth 2. sixth Ⅱ. 1-2 BB 三、Ⅰ. 1. four fifths 2. a half 3. three quarters / three fourths 4. one and a half hours / one hour and a half Ⅱ. 1-2 BD 四、Ⅰ. 1-4 BBAB Ⅱ. 1. in the 1930s 2. ten past seven / seven ten 。