数词专题复习

(共29张PPT)
乔英华
2008.3.26
1. 数词的种类.
3. 基数词和序数词的用法.
2. 数词的拼写.
复习导入:数词的拼写
１、七　　　　
２、二
３、八
４、五
５、十二
６、十一
７、三
８、十三
９、十五
１０、二十
１１、五十
１２、三十
１３、四十
１４、百
看谁译得快：
seven
two
eight
five
twelve
eleven
three
thirteen
fifteen
twenty
fifty
thirty
forty
hundred
1、第一
2、第五
3、第二
4、第九
5、第三
6、第八
7、第十九
8、第二十
9、第十二
10、第二十一
first
fifth
second
ninth
third
eighth
ninteenth
twentieth
twentlfth
twenty-first
1、数词分几类？
2、基数词怎样变序数词
Try to answer
两类：基数词和序数词。
序数词除first, second, third 以外，其余一般在词尾加th构成。
数词
基数词
序数词
（表示数目多少）
（表示顺序先后）
forty-five
基数词的拼写:
31
45
57
66
89
thirty-one
fifty-seven
sixty-six
eighty-nine
21~99的两位数，在十位数和个位数之间中间有“－”。如：34—thirty-four
三位基数词的拼写
457
890
608
389
three hundred and eighty-nine
four hundred and fifty-seven
eight hundred and ninety
six hundred and eight
101~999的三位数由“百位数＋and+两位数组成”。 如：325—three hundred and twenty-five
1. My father has got eight _____stamps from all over the world.
A. hundreds B. hundred C. hundreds of
2. The concert attracted ____ students last night.
A. thousand B. two thousands
C. thousands of
B
C
基数词与hundred; thousand; million; billion等连用, 表示确切、具体的数目时,词尾不加“s”；如：five hundred, six thousand, seven million, nine billion 等。当 hundred, thousand，million; billion等与“of”连用时用复数形式．如：thousands of students, millions of trees.
1.The children are going to learn ____ tomorrow.
Lesson Third B. the Lesson three
C. Lesson Three
2. I don’t know if he lives in ________.
Room 215 B. the Room 215
C. 215 rooms
C
A
▲表示编号：单数名词＋基数词, 且名词与数词的第一个字母一般都要大写;用序数词表示编号时,要位于名词前,且要加定冠词the.如:
Lesson Eight/ the eighth lesson; Page15,
Row Three/ the third row ; Bus No.37
编号：
练习三
初三（4） 班
第一课
第三中学：
第十三路公共汽车
Lesson One =the first lesson
Exercise Three
Class Four, Grade Three
No. 3 Middle School
Bus No. 13
年份的表达法
1875--
eighteen seventy-five
要用基数词，每两位一读，如果年份以00结尾，用hundred表示。
1997--
nineteen ninety-seven
1682--
sixteen eighty-two
小知识
1900--
nineteen hundred
2000--
two thousand
时刻表达法：　
1. -What’s the English for “6:10” –It’s ___.
A. six ten B. ten six C. ten to six
2. 9:45 is _______.
A. a quarter to nine B. a quarter past nine
C. a quarter to ten
3. It’s ______. Lets go and play football .
fifty past four B. ten to five
C. fifty to five
A
C
B
情况 顺读法 示例
整点
几时几分
时刻的表达法
基数词(+o’clock)
9:00 (nine o’clock)
钟点数+分钟数
9:40 nine forty
时刻的表达法:
情况 逆读法 示例
分钟数<30
分钟数>30
分钟数=30
分钟数=15
分钟数=45
分钟数+past+钟点数
9:10 ten past nine
(60-分钟数)+to+
(钟点数+1)
9:50
ten to ten
half past+钟点数
9:30 half past nine
a quarter past +钟点数
9:15 a quarter past nine
a quarter to +(钟点数+1)
9:45 a quarter to ten
说明:使用逆读法, 15分、45分不用fifteen minutes, 30分不用thirty minutes, o’clock只用于整点之后。
完成下列句子。
1、我们在6：15起床。
We get up at ____________________.
2、他在7：30去学校吗？
Does he go to school at ____________
3、Lily不在11：45回家。
Lily doesn’t go home at ______________.
4、他们在9：28上床睡觉。
They go to bed at __________________.
5、妈妈在7：43看电视。
Mother watches TV at ___________
_______________.
six fifteen
a quarter past six
seven thirty
half past seven
eleven forty-five
a quarter to twelve
nine twenty-eight
twenty-eight past nine
seven forty-three
seventeen to eight
基数词与单数名词构成复合形容词, 中间要用连字符 “-” .例：
an eight-year-old boy 一个八岁的男孩
a two-day holiday　　　一个两天的假期
1. A _____schoolboy, Li Ming, played the piano at the end of the party.
A. 12-year old B. 12-years-old
C. 12-year-old
2. They will have a ______________.
A. 20 days holiday B. 20 day’s holiday
C. 20-day holiday
C
C
容易写错的序数词和基数词对照表：
基数词 序数词 缩写形式
one
two
three
five
nine
twelve
twenty
forty-eight
first
1st
second
2nd
third
3rd
fifth
5th
ninth
9th
twelfth
12th
twentieth
20th
forty-eighth
48th
基变序有规律，词尾加上“－th”．
“一，二，三”特殊记，加th从4起
(first, second, third, fourth) 。
八去t，九减e， (eighth, ninth)
20到90，y要变ie (twentieth, ninetieth)
逢5逢12，ve变f (fifth, twelfth)
若是几十几，前基后序别倒位 (ninety-first) 。
序数词缩写记清楚，数字后跟两字母。
基数词变序数词的规则：
John lives on _______ floor.
A. nine B. ninth C. the ninth
2. We all think that the _____century will bring us more hopes.
twenty-one B. twentieth-first C. twenty-first
3. This is _____ visit to China.
A. second B. my the second C. my second
4. On his ____ birthday, he got a lot of presents.
A. twelve B. twelfth C. the twelfth
C
C
C
B
序数词前要有定冠词the，如前有形容词性物主代词时，不用定冠词.如：the +序数词+名词单数
1. I have already broken two rulers so I want to buy a ____ one.
A. three B. third C. fourth
2. 为什么不再试一次？
B
Why not try a second time
序数词前用不定冠词a/an时表示“再一，又一”，相当于another.
分数表达法:
例: one　third; two fifths
In our class, _____of the students ____ girls.
A. three fifths, are B. three fifth, are
C. three five, are
2. ____of the water_____drunk up.
A. Two thirds, has B. Two third, is
C. Two thirds, was
A
C
分子用基数词, 分母用序数词. 当分子大于1时,序数词之后加“s”.　谓语动词的数由分数后面的名词决定．
“年”用基数词，“日”用序数词，前面要加定冠词.
例: 1999年10月1日：
年、月、日的表达方法：
有两种表达方式:月份+the+某日的序数词+年份或
the+某日的序数词+of+月份+年份
October 1st , 1999
读作: October the first, nineteen ninety-nine 或
the first of October, nineteen ninety-nine
1、 基数词的拼写.
2、 序数词的拼写.
3、 hundred thousand million billion
的用法.
4、 用数词表示编号、时刻、年月日.
5、 分数的表达法.
Summary: 本节课内容小结:
连接中考----历届中考试题
_____Guangdong Sports Games was held in Foshan
last November. (2007佛山中考试题)
A . The twelve B. Twelfth C. The twelfth
2. Mothers’ Day falls on ____ Sunday of May.
A. two B. second C. the second (2006佛山中考试题)
3. Every year _____ of trees are planted on the hills to protect the environment. (2004佛山中考试题)
A. a thousand B. thousands C. thousand
4. –Has the party started
--No. Only four girls have come. You are ______.
A. five B. fifth C. the fifth (2003佛山中考试题)
5. Mother’s Day is on ____ Sunday of May.
A. two B. second C. the second (2002佛山中考试题）
Complete the sentences
1、一年有365天.
There are ____________________________ days in a year．
2、看!天空中有成千上万颗星星.
Look! There are __________________stars in the sky．
3、她有一个十个月大的婴儿.
She has _________________________ baby.
4、他出生于1991年7月5日.
He was born ________July __________,1991 .
5. 他班三分之二的学生是女孩.
__________________of the students are girls in his class．
three hundred and sixty-five
thousands of
a ten-month-old
on
the fifth
Two thirds
14.The students in this school study German.
German _______ ________ by the students in this school.
15.Do they often talk about this question
______ this question often _______ about _______ _______
is studied
Is
talked
by them
复习数词.
完成《专项》P34-36.