2024年中考英语复习数词 Lesson4 Numeral课件(共21张PPT)

(共21张PPT)
Numeral 数词
Lesson 4
Numeral
C O N T E N T S
目录
01
基数词
02
序数词
03
数词的用法
一、基数词
1、基数词概念：
2、基数词的构成（了解即可）：
1）1－12, 独立成词。
one two three four five six seven eight nine ten eleven twelve
2）13--19, 由 3－9 + teen 构成。
14–fourteen 特殊拼写: 13– thirteen 15--fifteen 18—eighteen
3）21－99 (两位数) 十位与个位之间有 “－”。
21 twenty-one 55 fifty-five 99 ninety-nine
表示数目多少的数词.
一、基数词
4）20－90, 以-ty 结尾。 60---sixty
特殊拼写:20---twenty 30---thirty 40---forty 50---fifty 80---eighty
5）百—hundred 千—thousand 百万—million 十亿—billion
6) 101－999, 三位数, 百位与十位/个位之间加 and，十位和个位用“-”连接。
101 one hundred and one 840 eight hundred and forty
7) 1, 000以上数目,从右向左每三位用“，”分开,
分别读为thousand, million, billion
一、基数词
基数词，不难记，找出规律很容易
零至十二形各异，一个一个单独记。
后加-teen 为“十几”thirteen, fifteen
看仔细，eighteen只有一个t.
表示“几十”要加-ty, twenty, thirty是例外，
forty, fifty 更厉害，和eighty一样搞例外。
表示数字“几十几”，连着符号要切记。
若要表示“几百几”，and 常把百、十系。
还有一点要注意，几百后别把-s立。
基数词构成规律
二、序数词
1、序数词的概念：
2、序数词的构成（了解即可）：
1）1－3, 独立成句 first, second, third
2）4－19, 相应基数词+th, fourth
特殊拼写:fifth, eighth, ninth, twelfth
3) 序数词缩写——数字＋最后两字母 如:1st, 2nd, 3rd ,4th…
4) 20－90, y 变成 ie +th, 如:twentieth
5) 21－99, 只把个位的基数词变成序数词 如: twenty-first
表示顺序次序的数词.
二、序数词
基变序，有规律
一二三，特殊记，加 th 从 4 起，
八去“t”，九去“e”，“ve”要用“f”替，
见“y”变成“i”和“e”，词尾加上“th”，
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。
序数词构成规律
Attention !
(1)序数词作定语, 前面要加the; （表示第几）
John lives on the fifteenth floor.
如果序数词前已经有物主代词或名词所有格时, 不可再加定冠词the.
It’s Monday, and it’s my fifteenth birthday.
Is it Lily’s fifteenth birthday, too
(2)有时加a/an, “再一”, “又一” 的意思
We’ll have to do it a second time.
三、数词的用法
1、hundred， thousand， million，billion的特殊用法:
①前面有具体数目,hundred, thousand, million, billion不用加s和of；
800(eight hundred)， 3, 000(three thousand)
②表示不确定数目,加s 加of.
hundreds of (数百)
thousands of (数千)
millions of (数百万)+ 名词复数
③可以用many/several/a few修饰，several hundred tourists.
口诀：
具体数字直接加，
不确定时，有s有of
三、数词的用法
2、时刻读法：
表示方法 例子
整点 整点时间， 基数词+o’clock 7
顺读 时＋分（几点几分） 7: 30
特殊读法 15分钟： 30分钟： 2:30
逆读 当分钟＜30时用past（过）即“分钟＋past＋钟点数” 7:20
当分钟＞30时,用to（差）即“(60－分钟)＋（钟点数＋1）” 6:40
当分钟等于30时,用“ half past＋钟点数’’ 7:30
seven o’clock
seven thirty
a quarter
a half
two and a half hours
=two hours and a half
twenty past seven
twenty to seven
half past seven
三、数词的用法
3、课外小知识（了解即可）：
October 1st, 1999(日用缩写, 月-日-年)
October 1, 1999 (日用数字) / 1st October, 1999日-月-年
房间号码和电话号码要一个一个分别读
Classroom 312
Class Four, Grade Six（先班级后年级，开头记得都大写）
Room 3= the third room
Unit 9= the ninth unit
三、数词的用法
4、小数的用法：
3.1415926
5、百分数的用法：
15％:
120％:
point 点
three point one four one five nine two six
percent (百分之……)
fifteen percent
one hundred and twenty percent
三、数词的用法
6、分数的写法：
1/2: 1/4: 1/3:
2/3: 3/5:
7、“几十”的复数形式：
①几十多岁——
（分子为基数词，分母为序数词）
a half / one second
a quarter /one fourth
one third
two thirds
three fifths
口诀：
子基母序,
分子＞1, 分母就要加S

in + one's + 整基数词的复数形式（twenties, thirties, forties...）
eg： He died in his forties.
三、数词的用法
②年代——
③
④
in + the + 基数词复数
in the nineties 90年代 在20世纪30年代: in the 1930s
“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。
Eg： a 3-year-old girl = a three years old girl
表计量——“基数词+度量单位+形容词”
eg. The classroom is 7 meters long, 6 meters wide.
三、数词的用法
8、加减乘除表达（了解即可）：
加 plus, and或add 2+3=5 Two plus three is five.
Two and three is equal to five.
Two and three makes five.
If we add two to/and three, we get five.
减 minus/substract 10-6=4 Ten minus six is four.
乘 times(介词)或multiply 3×4=12 Three times four is twelve.
Multiply three by four, we get twelve.
Three multiplied by four makes twelve.
除 divide的过去分词形式 16÷4=4 Divide sixteen by four, we get four.
Sixteen divided by four is equals/gives/makes four.
Exercise
一、单项选择：
1、We gave away six ______books to the school library last year.
A．hundreds B．hundred C．hundreds of D．hundred of
2、Could you tell us how to read the number 18, 306, 211
A.Eighteen million, three hundred and six thousands, two hundred eleven.
B.Eighteen million, three hundred and six thousand, two hundred and eleven.
C.Eighteen millions, three hundred six thousand, two hundreds and eleven.
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Exercise
3、About ____ of the workers in the factory were born in the ______.
A．two fifths; 1980 B．two fifths; 1980s
C．second five; 1980s D．two-fifth; 1980s
4、The number of the students in our grade________ about________, and three ________ of the students in our school are girls.
A．are; six hundreds; fifths B．is; six hundred; fifths
C．is; six hundred; five D．are; six hundreds; five
5、The hero of the story is an artist in his________.
A．thirtieth B．thirty C．thirty's D．thirties
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Exercise
6、The Eiffel Tower in Paris is about _______.
A.320-meter-tall B.320-meter tall
C.320 meter tall D.320 meters tall
7、This song was very popular ______.
A.in 1990's B.in the 1990s C.in the 1990s' D.at the 1990s
8、— What’s the time
— It’s ________.
A．a quarter past nine B．fifteen to nine
C．fifteen past eight
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Exercise
9、—Susan, how many women teachers are there in your school
—In our school, _______of the teachers _______ women teachers.
A．third fourth; are B．third fourth; is
C．three fourths; is D．three fourths; are
10、Jenny will come to China for _____time next month. She came once in October last year.
A．two B．second C．a second D．the third
11、—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
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Thank You !