中考专项复习之数词

课件32张PPT。Numbers九年级英语专项复习
数词基数词
　　 　　
　　1. 基数词　表示数量的词称为基数词。其形式如下：A．1——10
one，two，three，four，five，six
seven，eight，nine，ten．
B． 11——19
eleven，twelve， thirteen， fourteen，
fifteen， sixteen， seventeen，eighteen，
nineteen．
C． 21——99 　　
表示几十几时，在十位和个位之间添加连字符“-”
21 　　
32
43
54
65
76
87
98twenty-oneforty-threethirty-twofifty-foursixty-fiveseventy-sixeighty-sevenninety-eightD．百位数
三位数以上的基数词，在百位和十位一般
要用 “and”连接。
101 　　
320
648
E．千位数以上
从数字的右端向左端数起，每三位数加一个逗号
“，”。从右开始，第一个“，”为thousand，第二
个“，”为million，第三个“，”为billion。
如：1,234,567,890one / a hundred and onethree hundred and twentysix hundred and forty-eightone billion two hundred and thirty-four million five hundred and sixty-seven thousand eight hundred and ninety648
six hundred and forty-eight
567,890
five hundred and sixty-seven thousand eight
hundred and ninety
15,362
fifteen thousand three hundred and sixty-two
9,109
nine thousand one hundred and nine“ 1509 ”If it is an amount(数量)
1,509 reads like this
one thousand five hundred and nine
(2) If it is a date(日期)
15 09 reads like this
fifteen zero nine
(3) If it is a telephone number(电话号码)
reads like this
one five o nine

“0” 在英语里读成 “o” or “zero”Practice the following numbers in three ways :A. as an amount
B. as a date
C. as a phone number
1814
2035
1666
1170
1902序数词1. 序数词一般由基数词后加th构成，前面一般加定冠词the。
第18
第200
2. 以y结尾的基数词构成序数词时，先把y改成i，再加eth。
第50
第20
3. 不规则的序数词有以下几个
first, second, third, fifth, eighth, ninth,
twelfth（一定要记住）the eighteenththe two hundredththe fiftieththe twentieth first 1st
second 2nd
third 3rd
fourth 4th
fifth 5th
sixth 6th
seventh 7th
eighth 8th
ninth 9thtwelfth 12thtwentieth 20ththirtieth 30thfortieth 40thfiftieth 50thsixtieth 60thseventieth 70theightieth 80thninetieth 90th4. 表示第几十几时，十位用基数词，
个位用序数词，十位和各位用连字符-
连接
第三十一
第六十五
第七十四
第九十九
第八十二
thirty-firstsixty-fifthseventy-fourthninety-nintheighty-second5. 编号的三种表示法
1）名词＋基数词
Lesson Three
2）the＋序数词＋名词
the third lesson
3）名词＋数字
Lesson 3
如：5班
Class Five = the fifth class = Class 5
1、This is Mr White’s ____ visit in Beijing. He has been there twice before.
A. two B. second C. three D. third
2、There are ____ months in a year. October is the ____ month.
A. twelve, ten B. twelfth , tenth
C. twelve, tenth D. twelfth, ten
3、There are ____ people in Peter’s family. They live on the ____ floor in tall building.
A. six, eighteen B. six, eighteenth
C. sixth, eighteenth D. sixth, eighteen
4、 _____ is the easiest of all.
A. Lesson one B. The Lesson one
C. Lesson First D. The first lesson
5、 The foreign guests stayed in ____ last night.
A. Room 608 B. the Room 608
C. the 608 room D. 608 the room时间和钟点时间的表达方式
1．直接表达法。即先读小时，再读分钟
如：4：10 读成
8：36 读成
2．逆读法。即先读分钟，再读小时
①分钟小于30的用“past”，中文译为“过”。
即分钟+past+时钟，中文译为“几点过几分”
如：5:10（5点过10分）读成
2:02 （2点过2分） 读成four teneight thirty-sixten past fivetwo past two②分钟超过30（不包括30分钟）用 “to”（中文译为“差”）
即“60-分钟数 +to+钟点数+1” （中文译为：几点差几分）
如：7：45 （八点差15分） 读成
1：58（两点差2分） 读成
3．半小时用“half”, 一刻钟用“quarter”。
注意：一刻钟 a quarter 三刻钟 three quarters
如： 4: 30 读成
9: 45 读成
a quarter to tentwo to twohalf past fourfifteen to eight特别注意：一个半小时的表达方式：
one / an hour and a half
one and a half hoursCan you read them?1:30
2:15:
3:45
6:38
7:25
9:50
one thirtyhalf past onetwo fifteena quarter / fifteen past twothree forty-fivea quarter/ fifteen to foursix thirty-eighttwenty- two to seventwenty five past sevenseven twenty-fiveten to tennine fifty三年半的两种表达方式:
three years and a half
three and a half years日期和年份年、月、日的表达方法
1．月份的表示方法。
12个月份的名词在使用时第一个字母一定要大写，和日期连用
时也可用其缩写形式, 五月没有缩写形式。
一月 January（Jan.） 二月February (Feb.)
三月 March (Mar.) 四月 April (Apr.)
五月 May 六月 June (Jun.)
七月 July (Jul.) 八月 August (Aug.)
九月 September (Sep./ Sept.)
十月 October (Oct.)
十一月 November (Nov.)
十二月 December (Dec.) 2．年和月连用时，月在前，年在后
如：March 2012 September 1982
3．月和日连用时，有三种表达方式。如：3月14号
March 14 = March the fourteenth = the fourteenth of March
4．年、月、日连用时常在年前加逗号，介词用on。如：
在1989年9月28号 on September 28，1989
在2008年八月八号 on August 8，2008
5. 世纪年代的表示方法
21世纪: (in) the 21st century 80年代: (in) the eighties
20世纪90年代 : (in) the 1990s或1990’s特别说明：
1、世纪、年代、年份、月份时，用介词in
2、某一天、星期前用介词on
3、某一天早晨、下午或晚上时，用介词on。1、____ a cold morning，the old man died lonely in his house．
2、The girl was sent to hospital ____ the morning of March 20.
3、My son was born _____ October 2010.
4、People are very poor _____ the fifties.　　　Ononinin 分数，小数，
百分比分数、百分数、小数的表达方法 （以分数考法较为常见）
1. 分数: 分子用基数词，分母用序数词，分子大于一，分母加s .与名词连用时加介词of 1/2 读作
2/3 读作
1/13 读作
3/4 读作
2．小数,百分数的读法:
小数点读成point 3.6 读作
百分号% 读成 percent 50%读作one second（a half）two thirds 或者 two-thirdsone thirteenththree fourths或者three - quartersthree point sixfifty percentPractice talking(1) 36.9
(2) 15 %
(3) 3/5
(4) 4/7
(5) 3.141
(6) 28 %thirty-six point ninefifteen percentthree fifthsfour seventhsthree point one four onetwenty-eight percent热门考点一：hundred、 thousand、 million、 billion的考查方法
1．和“of”连用，前面不能有具体的数,而且这四个词的本身必须用复数。如
hundreds of 数以百计的 thousands of 数以千计的
millions of 数以百万计的 billions of 数以十亿计的
many hundreds of students. 好几百个学生
2．当它们的前面有具体的数修饰时,其本身即不能用复数，
不能和“of”连用。
two thousand students 两千名学生
five hundred cars 五百辆车 1、By the end of last year, we had planted about five ____ trees.
A. hundred B. hundreds
C. hundred of D. hundreds of
2、____ books must be produced for the children.
A. many thousands
B. many thousands of
C. many thousand of
D. many thousand热门考点二：其它重要表达方式的考法
1. 在某人多少岁
in + one’s + 几十的复数形式
eg: My parents are in their fifties.
2．a five-year-old boy
an eight-year-old girl
3．100-meter-long bridge (100米长的桥)
10 meters deep (10米深)
4．ten-minute walk = ten minutes’ walk
5. two more hours= another two hours
.“基数词－名词－形容词”结构“基数词－名词－形容词”只能用来放到名词前作定语。如：
She is a 3-year-old girl.
They live in a 7-storey-high building.
注：这种结构中名词不能用复数，同时只能作定语。用作表语时，不用连字符，名词有复数。如：
Tony is 10 years old this year.
Tony is a 10-year-old boy.( )1、The has written a ___ composition．
A．three-hundred-word　 B．three- hundred- words
C．three hundreds words　D．three hundreds word
( )2、Every day the old woman sits here for ____.
A. one and half hour　　　 B. one and a half hour
C. one hours and a half 　　 D. one and a half hours
( )3、He became very rich ____.
A. in his forty　　　B. in the forties
C. in his forties　　 D. in the forty
( )4、Mary is ____ girl.
A. an 8 –year- olds　　　　B. an 8-year-old
C. an 8 -years -old　　　 D. a 8-year-old ADCB( )5、Guangzhou Tower is almost _____．
A．600 meter high　
B．600 meters high
C．600-meters-high　
D．600-meter-high
( )6、—Have you got enough books?
—No. I need ____.
A. ten more　　　
B. more ten
C. ten another 　　
D. other tenBA