2012初中语法数词复习

(共23张PPT)
一.基数词、序数词
二.数词的表示法
基数词 序数词 基数词 序数词
one twelve
two twenty
three twenty-one
four forty
five one hundred
six one hundred and five
eight one hundred and twenty-nine
nine nineteen
一.基数词、序数词
first
second
third
fourth
fifth
sixth
eighth
ninth
twelfth
twentieth
twenty-first
fortieth
one hundredth
one hundred and fifth
one hundred and twenty-ninth
nineteenth
二.基数词的读法
1、百位和十位间用 and 连接,
十位和个位间用 - 连接
three hundred and twenty-one
321
2、右往左数,三位一组,逗号隔开.依次是
thousand(千)
million (百万)
billion (十亿)
four thousand three hundred and twenty-one
seven million,six hundred and fifty four thousand three hundred and twenty-one
7,654,321
1,987,654,321
4321
4,321
one billion nine hundred and eighty-seven million,six hundred and fifty-four thousand three hundred and twenty-one
1. hundred
thousand (表示具体数字)
million
billion
2. hundreds
thousands (表示概数)
millions
billions
三.基数词的用法
数词
(several)+
+ of
some / many hundreds of
1. — If a = 3, b=4, what’s the answer to the problem, a+2ab+1=
— the answer is___.
A. twenty eight
B. twenty-eighth
C. twenty-eight
2. In our school several __ students are able to search the Internet .
A. hunderd of
B. hunderds of
C. hundred
3. Many __ sheep were killed in the accident.
A. thousands of B. thousand
C. thousands
4. There are over nine __ workers in the factory, but __ of young people hope to work in it.
A. hundred; hundreds
B. hundreds; hundreds
C. hundreds; hundred
① 月日年 在2008年10月1日
四.数词的表示法 — 年月日
on Octorber the first, two thousand and eight
日
the + 序数词
月
（首字母大写）
月日与年之间用 ，分开
年
（两位两位读）
on August the ninth
in May, two thousand and ten
有日用 on 无日用in
on Oct. 1st , 2008
② 月日 在8月9日
③ 月年 在2010年5月
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
20世纪90年代
in the 1990s
在他50多岁时
in his fifties
四.数词的表示法 — 年代世纪
in the
in one’s + 整十基数词复数
在某人几十岁时
nineteen
nineties
1. There will be more chances in __ century than in __ century.
A. twenty-one, twenty
B. twenty-first, twentieth
C. the twenty-first, the twentieth
2. The city changed a lot ___.
A. in 1980s
B. in the 1980s
C. in the 1980
3. He graduated in __ of __ century.
A. the sixtieth; twenty
B. sixty; the twentieth
C. the sixties; the twentieth
4. He got the prize __.
A. in his fifties
B. in fifties
C. in his fifty
时间类型 表示法 例 读法
整点 基数词（+ o’clock) 1:00
﹤30分钟 分钟 + past +小时 2:10
= 30 分钟 half + past + 小时 3:30
﹥30分钟 （60-分钟） + to +（小时 + 1） 4:40
分钟逢15
即 一刻钟 a quarter 5:15
6:45
简化法 按顺序读基数词 7:50
one o’clock
ten past two
half past three
twenty to five
a quarter past five
a quarter to seven
seven fifty
表示在几点钟用介词 at
四.数词的表示法 — 时间
1.— It’s already 7:40 now. When will the film start
—___. We still have five minutes.
A. A quarter to seven
B. Seven past forty-five
C. A quarter to eight
1
5
分子 基数词
分母 序数词
one fifth
2
7
分子 ﹥ 1
分母 + s
two sevenths
1
4
分子 a
分母 quarter
a quarter
3
4
three quarters
1
2
a half
四.数词的表示法 — 分数
1. __ of the students __ boys in Class
A. Two three; are B. Two thirds; are
C. Two thirds; is
2. __ of her money __ spent on clothes.
A. Two three; are B. Two thirds; is
C. Two third; is
3. __ the teachers in our school is about one hundred, and __ of them are women teachers.
A. The number of; two third
B. The number of ; two thirds
C. A number of; two thirds
一个半小时
两个半小时
two and a half hours
= two hours and a half
one and a half hours
= one hour and a half
四.数词的表示法 — 半的表示法
1. The boy always stays there for __.
A. one and half hour
B. one and a half hour
C. one and a half hours
2. The old man drank__ beer.
A. two bottles and a half
B. two and a half bottle
C. two bottle and a half
一般编码用 名词 + 基数词
207房
三年级一班
第五部分
第一课
3 号汽车
第一中学
Room 207
Class one Grade three
part five = the fifth part
lesson one = the first lesson
Bus No.3 = the No.3 bus
No. 1 Middle School
四.数词的表示法 — 编号
① The winner is ___. He is an ___ boy .
A. eight-year-old; eight years old
B. eight years old; eight-year-old
C. eight-years old; eight-year-old
② He came to China ____.
A. at the age of 20
B. when he is 20
C. at age of 20
四.数词的表示法 — 年龄
① The river is about ____.
A. 6,000 meters long
B. 6,000-meters-long
C. 6,000-meter-long
四.数词的表示法 — 计量
be + 数词 + 量词 + 形容词