资源简介

(共38张PPT)
语法：
数词及其用法
Grammar
语法专项：
02.
基数词、序数词的写法
CONTENTS
目录
01.
数词定义和分类
03.
数词的应用
04.
考点
定义与分类
数词：
表示数量多少以及顺序先后的词。
数字0-12的英文写法（背+记+默）
数字 英文 数字 英文
0 zero 7 seven
1 one 8 eight
2 two 9 nine
3 three 10 ten
4 four 11 eleven
5 five 12 twelve
6 six
基数词
数字13-19的英文写法（背+记+默）
数字 英文
13 thirteen
14 fourteen
15 fifteen
16 sixteen
17 seventeen
18 eighteen
19 nineteen
英文
three
four
five
six
seven
eight
nine
表示“十几”，加后缀-teen，读作/ti:n/。
其中要注意thirteen, fifteen和eighteen的拼写。
teenage adj.青少年的，十几岁的
teenager n.青少年（13-19岁）
数字20-90（整数）的英文写法（背+记+默）
数字 英文
20 twenty
30 thirty
40 forty
50 fifty
60 sixty
70 seventy
80 eighty
90 ninety
two twelve
three thirteen
four fourteen
five fifteen
six sixteen
seven seventeen
eight eighteen
nine nineteen
表示“几十”，以-ty结尾，但需注意的拼写：twenty, forty, 。
数字（几十几）的英文写法（背+记+默）
数字 英文
21 twenty-one
32 thirty-two
43 forty-three
54 fifty-four
65 sixty-five
76 seventy-six
87 eighty-seven
98 ninety-eight
表示“几十几”，中间用连词符“-”。
三位数及以上的英文写法
数字 英文
100 one/a hundred
200 two hundred
1,000 one thousand
101 one hundred and one
10,101 ten thousand one hundred and one
123,456,789 one hundred and twenty-three million, four hundred and fifty- six thousand, seven hundred and eighty-nine
hundred 百 thousand 千 million 百万 billion 十亿
三位数的基数词在百位和十位之间加and。
要表示整百，hundred后不加s。
数词不确定时用
hundreds of…数百的
thousands of…数千的
millions of …数百万的
billions of…数十亿的
Practice
读出下列数字
12
120,119,100
667
133
95
1,101
54,321
9,876,543,210
现学现用：
Every year, ____ books are given away to the poor children in the countryside.
A.thousand B. thousands of
C. thousand of D. thousands
序数词
规律
一，二，三，特殊记 first（1st） second(2nd) third3(rd)
八去t，九去e，ve要用f替 eight →eighth(8th) nine →ninth
five →fifth twelve →twelfth
ty变做tie,再加th莫忘记
twenty →twentieth
thirty →thirtieth
若是遇到几十几，只变个位就可以 twenty-six → twenty-sixth
forty-three → forty-third
数词的应用
1.表示钟点
2.表示编号
3.表示日期
4.表示年代或年龄
5.表示小数,分数,百分数
6. 倍数
7. 加减乘除
1.表示钟点
1. 整点： three o’clock
2. 几点几分
（1）直接读法：先读小时，再读分钟
eg. 3:25 three twenty-five
(2) 间接读法
几点过几分 ---eg. 3:25 twenty-five past three
差几分到几点--- eg. 3:55 five to four
需有介词at
30分钟=half; 15分钟=a quarter; 45分钟=three quarters
eg. 4:30 -- half past four
4:15 -- a quarter past four
4:45 -- a quarter to five
2.表示编号
编号既可以用序数词，也可以用基数词。
Lesson Two= the second lesson 第二课
Page 385= three hundred and eighty-fifth page 第385页
有的编号习惯用基数词
Room 405 (four zero five) 405 房间
Bus No.3 3路公共汽车
用“名词+基数词”的结构表示，词组中每个单词的首字母均需要大写。
3.表示日期
日期 英文 日期 英文
1月 January 7月 July
2月 February 8月 August
3月 March 9月 September
4月 April 10月 October
5月 May 11月 November
6月 June 12月 December
顺序：月 日，年 (日用序数词，年用基数词)
2021年12月1日 December the first, twenty twenty-one
2005年10月25日 October 25th, two thousand and five
在具体的某一天需有介词on
(有日用 on 无日用in）
现学现用：
1. The accident happened on___.
A. April 5, 2001
B. 2001, April 5
C. April 2001, 5
2. I was born ___.
A. in March 8, 1993
B. on July 9, 1994
C. on May, 1995
4.表示年代或年龄
1. 表示年代 in the + 年代的复数
eg. 在20世纪70年代 in the 1970s
2. 表示世纪 in the + 序数词+century
eg. in the 20th century = in the twentieth century
3. 表示年龄
①表示“多少岁”时，数字+years old
eg.The girl is 16 years old.
②at the age of+基数词 “在……岁时”
eg.She went to school at the age of five.
③“in one's＋整十数的复数形式”“在某人几十多岁时”。
eg.in his twenties 在他二十多岁时
④a+数字-year-old+名词
eg. He is a ten-year-old boy
(＝形容词)作定语
现学现用：
1. The winner is ___. He is an ___ boy .
A. eight-year-old; eight year old
B. eight years old; eight-year-old
C. eight-years old; eight-year-old
2.He got the prize __.
A. in his fifties B.in fifties C.in his fifty
5.表示小数,分数,百分数
1.小数用基数词，小数点读作point,小数点前正常读，小数点后一位一位地读,小数点后遇零时，可读字母O的音。
0.05 米 --zero point zero five metre
67.89 吨 sixty-seven point eight nine tons
2. 百分数 percent
eg. 5% five percent 48% forty- eight percent
数值大于1，小数后面名词用复数，小于1用单数
3.分数：“分子用基础词，分母用序数词”.
当分子大于1时，分母序数词后加s.
1/3 one third
2/3 two thirds
3/4 three fourths=three quarters
1/2 a (one)half
1/4 a (one)quarter= one forth
① 分数 、百分数 + of + 可数名词复数
谓语动词用复数
② 分数、百分数 + of + 不可数名词,谓语动词用单数
现学现用：
1.___of the land in that district(地区) ____covered with trees and grass.
A．Two fifths; is B．Two fifth; are
C．Two fifth; is D．Two fifths; are
2.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
(1) A＋谓语＋倍数＋as＋原级＋as＋B
eg.The bag is twice as big as that one.
6. 倍数
half “一半”；double或twice表示“两倍”；
times三或三倍以上
(2) A＋谓语＋倍数＋as many/much＋名词＋as＋B
eg. I have twice as many books as he (does)．
(4) A＋谓语＋倍数＋the size(width/length/height/depth等)＋of＋B
eg.Your piece of bread is three times the size of mine.
(3) A＋谓语＋倍数＋比较级＋than＋B
eg.This classroom is three times bigger than ours.
7. 加减乘除
(1)“加”用plus，and 或add 表示;“等于”用is，makes，equals 等词表示。
2 +3= 可表示为: How much is two plus three
2 +3 =5 可表示为:
Two plus three is five. Two and three is equal to five. Two and three makes five. Two added to three equals five. If we add two to/and three, we get five.
10-6= 可表示为 How much is ten minus six
(2) “减”用 minus 或 take from 表示。
10-6 =4 可表示为
Ten minus six is four.Take six from ten and the remainder is four. Six (taken) from ten is four.
3x4=12 可表示为
(3) “乘”用 times或multiplied by表示。
3x4= 可表示为 How much is three times four
Three times four is/are twelve. Three multiplied by four makes twelve.
16÷4= 可表示为 How much is sixteen divided by four
(4)“除”用 divided by 表示。
Sixteen divided by four is four. Sixteen divided by four equals/gives/makes four.
16÷4=4可表示为
1. 表示顺序时，序数词前必须加the，其后接单数名词。
2. 序数词前若有形容词性物主代词、名词所有格等限定词，则不加the。
e.g.It's my first time to be here. 这是我第一次来这里。
3. 序数词前面a或an，表示“又一，再一”，内含顺序性。
e.g. a third time 第三次
考点
4. 序数词与基数词连用时，通常是序数词在前面。
e.g. the first three pages of the book 这本书的前三页
5. 序数词修饰谓语动词时，定冠词the省略。
e.g. The team ranks first in its country.
该队在其国家排名第一。
6.“基数词＋连字符＋名词”(＝形容词)作定语，名词用单数形式。
e.g. a 10 meter long bridge 一座10米长的桥
a ten minute- walk＝ten minutes’ walk 步行10分钟的路程
7.“another＋基数词＋名词复数”＝基数词＋more＋名词复数。
e.g. another three students＝three more students 另外三个学生
8.数词与表示时间、距离、重量、金钱、度量等词连用作主语，常被看作是一个整体，谓语动词用单数。如：
Ten dollars is enough to buy the book. 十美元足够买这本书了。
9.分数的分子用基数词，分母用序数词，分子大于1，分母加“ s”；分数作主语时，谓语动词与分数所修饰的名词的数保持一致。
1. The Mid-Autumn Festival is _______of the lunar August.
A. on the fiveteenth B. in the fifteenth
C. on the fifteenth D. in fifteenth
2. The hospital is about _______away from my school.
A. four hundred meters B. four hundreds meter
C. four hundred meter D. four hundreds meters
3. We are proud of our party. The year 2021 is her _______birthday.
A. the one hundredth B. the one hundred
C. one hundredth D. hundred
现学现用
4. _____of the teachers in our school are from the south.
A. Two ninths B. Two ninths
C. Ninths two D. Nineths two
5. ---What's the time now
---It's_______.
A. ten to nine B. fifty to nine
C. ten from nine D. ten for nine
6. Don't lose heart, boy. You should try_______ time.
A. the third B. a third C. the other D. three
7. The work is too difficult for me to finish in a week. I need____ days.
A. two more B. more two
C. two another D. another more
8. Jenny was born ________.
A. on July 10,1987 B. in July 10,1987
C. in 1987,July D. on 1987,July 10
9. There are_______ days in a year.
A. three hundreds sixty-five　　　 B. three hundreds and sixty-five
C. three hundred and sixty-five　　 D. three hundred and sixty-five
10. My brother is in ________.
A. Three Class，One Grade　　　 B. Class Three，Grade One
C. Grade One，Class Three　　　 D. class three，grade one
11. The Wangs moved to Zhengzhou_______.
A. in the 1990 B. in the 1990s
C. in 1990s D. in 1990’s
12. Her mother looks young, but she is actually in her____.
A. sixty B. sixties C. sixtieth D. sixty years
13. September _______is Teachers' Day.
A. the ten B. the tenth C. the ten’s D. ten
14. There are_______ people in the room.
A. two dozens of B. two dozens
C. two dozen D. dozen of
15. That painter is a ______ woman.
A. fifty-year-old B. fifty-years-old
C. fifty year old D. fiftieth-year-old
16. .—Where does your cousin live, Tom
—Oh, he lives on the______ floor.
A. two B. twice C. second D. twos
THANK YOU

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