中考复习 数词

课件44张PPT。数词初三英语总复习复习要求掌握基数词和序数词的构成及基本用法；
熟练掌握年、月、日的表达方法及千位数以内的表示法；
掌握日常交际活动中常用的数字表示法。数词的分类数
词{基数词序数词基数词定义：基数词用来表示数目，或者表示数量的词叫基数词。
相当于中文的：
一个苹果 八辆汽车
两支钢笔 十张课桌
one appletwo pensten deskseight busessevensixthreezeroninetwooneeightfourfivenumberssevensixthreezeroninetwooneeightfourfive基数词的构成两位基数词的构成2134576689twenty- onethirty - fourfifty-sevensixty-sixeighty-nine三位基数词的构成457890608389three hundred and eighty-ninefour hundred and fifty-seveneight hundred and ninetysix hundred and eightNumbers are widely used.
Hello ，
86861873 ---100????????????????
2,000??????????????
30,000?????????????
400,000?????????????
5,000,000????????????60,000,000??????????700,000,000????????
8,000,000,000???????
90,000,000,000????????????????????
100,000,000,000????Can you read them ?hundred?thousand?millionbillionone?hundred
one?thousand
ten?thousand
one?hundred?thousand
one?million
ten?million
one?hundred?million?????
one?billion
ten?billion
one?hundred?billion
tens/ hundreds/thousands/ millions of
一百????? ????????????????????
?一千 ???????????
?一万 ????????????????????????????????????????????
十万? ?????
一百万???? ??????????????????
一千 万 ????????????????????????
?一亿 ???????
?十亿 ?????????????
?一百亿?? ? ????????????????一千亿
数十/百/千/百万看谁译得快：,Step1:one hundred and twenty-three billion,
Step2:four hundred and fifty-six million,
Step3:seven hundred and eighty-nine thousand,
Step4:one hundred and three103789456123,,8391What is the largest / smallest 4-digit number?
98311389基数词的用法1.表示可数名词的数量,如：
575名学生

7，894棵树

673两自行车five hundred and seventy-five studentsseven thousand eight hundred and ninety-four treessix hundred and seventy-three bikes基数词的用法2 基数词的复数形式表示大量的不确定的数目，如
hundreds of + 可数名词复数
数以百计的
thousands of + 可数名词复数
数以千计的 hundreds of birds, hundreds of animalsthousands of starts, thousands of workers基数词的用法编了号的事物要用基数词表示顺序，但是基数词要后置。如：
第一课
第32页
第305房间
第12路公共汽车
Lesson onePage 32Room 305Bus No.12序数词定义：表示顺序的词。相当于中文的“第几...”序数词的基本构成两位序数词的构成第33名
第46个
第89棵
第66位
the thirty-thirdthe forty-sixththe eighty-ninththe sixty-sixth序数词的用法用来表示事物的顺序。
Monday is the second day in a week.
January is the first month in a year.
Winter is the fourth season in a year.年、月、日和时间的表达法1 年份用基数词表达，分两位一读，介词用 in 。
1999年
2000年
2004年
1867年nineteen ninety-ninetwo thousandtwo thousand and foureighteen sixty-seven tenthnintheighthseventhsixthfifthfourththirdsecondfirstordinal
numbers tenthnintheighthseventhsixthfifthfourththirdsecondfirst一、二、三，特殊记，
加th从4起，
八少“t”，九去“e”，
“ve”要用“f”替，(five, twelve)
见“y”变成“i”和“e”，词尾加上“th”，
(twenty,thirty,---ninety)
若是遇到几十几，只变个位就可以。
ordinal numbers(序数词 )
Can you write their ordinal numbers?254412918721910190 401481001000时间表达法 顺读法
5：00
6：18
12：15
4：30
5：50
6：45 倒读法five o’clocksix eighteentwelve fifteeneighteen past sixa quarter past twelvefour thirtyhalf past fourfive fiftyten to sixsix forty-fivea quarter to seven专题例析:例1 The number 2,146 is read as__________.
A. two thousands and one hundred and forty and six.
B. two thousand and a hundred and forty-six.
C. two thousand, one hundred and forty-six.
D. two thousands , one hundred, forty-six.
分析:英语数字的读法是有规律的,百位跟十位之间加and,十位与个位用连字符,三位以上的数用逗号分开,第一个逗号代表thousand等.根据数字的读法,可以找出正确答案为C.
例2 There are _____ people in my family. We live in the _____ floor in a tall building.
A. five; six B. fifth; sixth
C. fifth; six D. five, sixth
分析: 第一个空表示数量肜基数词,第二个空表示顺序用序数词,选D. 例3 ——Excuse me, how does this number 20,135 read? ——It reads___________.
A. twenty thousands one hundred and thirty five
B. twenty thousand one hundred thirty five
C. twenty thousand, one hundred and thirty-five
D. twenty thousands, one hundred and thirty-five
分析：根据数字的读法规律，选C。
例4 In our class ______ of the students are girls.
A. three fifths B. three fifth
C. third five D. third fifths
分析：根据分数的表达方法，分子用基数词，分母用序数词，分子大于1，分母用复数可以找到正确答案为A。专题训练:This a big class, and ______ of the students are girls.
A. two third B. second three
C. two thirds D. two three
The questions is very easy, even a _____ child can answer it.
A. three-years old B. three years old
C. three-year-old D. three year old
3. The _____ man on the left is Beckman, a famous football player.
A. two B. second C. three
4. ——Which class won the match in the end?
—— I’m not sure. Maybe _____ did.
A. Class Third B. Class Three
C. third three D. Class ThreeCCBD5. Nine _____ pounds a week? That’s very good.
A. hundred of B. hundreds of
C. hundreds D. hundred.
6. Sharks have been on the earth for _____ years.
A. thousands of B. two thousands
C. two thousands of D. thousand of
7. ______ people come to Jilin to visit Mount Changbai every year.
A. Thousands of B. Thousand of
C. Thousands D. Thousand
8. The computer was cheap. I spent only two _____ yuan on it.
A. thousands B. thousand
C. thousands of D. thousand ofDAAB9. About _____ of the workers in the clothes factory are women.
A. third fifths B. third fifth C. three fifths D. three fifth
10. The road is over ______ metres long.
A. six hundreds and fifty-two
B. six hundred and fifty-two
C. six hundred, fifty-two
D. six hundred, fifty and two
11. September is _____ month of the year.
A. ninth B. eighth C. the eighth D. the ninth
12. It’s about ______ kilometres from Nanning to Beijing.
A. two thousand five hundred and sixty
B. two thousand five hundreds and sixty
C. two thousands five hundred and sixty
D. two thousands five hundreds and sixty CBDA13. Every year, ______ fishes are killed by the polluted water.
A. million of B. millions of
C. two millions of D. two millions
14. The boy told the old woman, “The train will arrive at two to two.” It means ______.
A. 2:02 B. 2:20 C. 1:58 D. 1:40
15. Sara said we would meet at _____ in front of the museum.
A. one thirty B. half an hour
C. one and thirty D. one past thirty
16. We’ll have a _____ holiday after the exam.
A. two month B. two-month
C. two month’s D. two-months
BCAB17. Now children, turn to page ______ and look at the _____ picture in Lesson Two.
A. twentieth; one B. twenty; one
C. twentieth; first D. twenty; first
18. Today we are going to learn the ____ lesson.
A. twenty B. twentith
C. twentieth D. twentyth
19. Dinosaur eggs were found in the _____.
A. 1990 B. 1990th C. 1990s D. 1990s’
20. ——How often do I take it?
——______.
A. twice B. twice a day
C. twice one day D. in twice daysDCCBDecember is the ________ month of the year.
Monday is the _______ day of the week.
English is spoken by most people as their _______
language in the USA, Great Britain, Australian,
and Canada.
The Games of the _____________ Olympic in 2008
will be held in the city of Beijing.
I’m hungry. I’ve eaten three apples. Would you
please give me a_______ one?
At the beginning of the _____________ century the
world’s population has passed 6 billion.
He got off this bus and got on a ______ one. twelfth secondfirst twenty-ninth fourthtwenty-firstsecondPractice:1/2
1/3
1/4
24/25
3/4
3
three fourths / three quartersone third /a thirdtwenty-four twenty-fifthsthree and six sevenths one quarter /a quarter/ one fourtha halfCan you read a fraction? What time is it? six
/six o’clock four o five
/ five past four seven fifteen
/a quarter past seven nine twenty
/ twenty past nine nine thirty
/half past nine six forty
/twenty to seven21391112What’s/ was the date?1990201019001918082020January 1st , 20031022February 14th ,1990March 12th, 2010September 22nd,1900November 23rd,2020December 25th,1808月份表达法一月
二月
三月
四月
五月
六月
七月
八月
九月
十月
十一月
十二月January
February
March
April
May
June
July
August
September
October
November
December注意：介词用onJuly1,1921October 1,1949August 1, 1927May, 1922When were they founded?PRCLeaguePLACCPThe ---was founded on /in ---练习353房间
二年级三班
六点二十分
四月三十日
九点半
七百八十二
一百棵橘子树
第六组
第五十四页Room 353Class three Grade twosix twenty/twenty past sixApril 30th
nine thirty/half past nineseven hundred eighty twoone hundred orange treesgroup six / the sixth grouppage fifty-four/ the fifty-fourth page练习现在七点一刻，该上学了。
三楼的第四个房间是李先生的家。
你可以乘59汽车到前门。It’s a quarter past seven. It’s time to go to school.It’s seven fifteen. It’s time to go to school.Mr Li’s home is the fourth room on the third floor.You can get to Qianmen by bus 59.编一篇短文，尽可能体现基数词和序数
的各种应用：
例如：时刻，日期，分数，编号等。课后作业：Thank you !