数词复习

课件17张PPT。 数 词

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数词基数词序数词
（表数量，后面常跟名词复数，1除外）
（ 表顺序，后面常跟名词单数，前面一般
有the 或代词修饰 ）读出 下列数字的基数词和序数词
1_____ 2____
3_____ 4____
5_____ 6____
7_____ 8____
9_____ 10___
11____ 12___ _
13_______
one first two second
three third four fourth
five fifth six sixth
seven seventh eight eighth
nine ninth ten tenth
eleven eleventh twelve twelfth
thirteen thirteenth
14________
15 ________
16 ________
17 ________
18 ________
19_________ 20_________
21_________
fourteen fourteenth
fifteen fifteenth
sixteen sixteenth
seventeen seventeenth
eighteen eighteenth
nineteen nineteenth
twenty twentieth
twenty-one twenty-first30_________
40_________
50_________ 60 _________
70 _________ 80 _________
90 _________
100 _________
1000 ________
1,000,000 ________
thirty
forty
fifty sixty
seventy eighty
ninety
one hundred
one thousand
one million用法:
1. 基数词+名词复数
The+ 序数词+名词单数
eg : I have two books
There are twelve months in a year .
January is the first month of the year
Ex:1. There are ___ students in our class.
A. fiftieth B. fifty-five C. fifty five D.fivety
2. There are __ days in a week. Monday is the _ day.
A. seven , two B. seven , second C. the seventh,two
3. The building has ___ floors.He lives on ___ floor.
A. twelve, twelfth B. twelfth , twelve
C. twelve , the twelfth D.twelve, twelve
4. There are ninety __here .A.person B.people C.man B
B
C
B用法：２．Hundred，thousand，million，billion
　　　　　　百　　　　千　　　百万　　十亿
与具体数字连用时，不加s和of　，否则加　s和of
Eg :
two hundred books / hundreds of books
three thousand trees / thousands of trees
Ex.
1. Eight ___ people came to visit here today.
A. hundred of B. hundred C. hundreds of
2. We planted ___ trees last week.
A. 3 hundred B. hundred of C. 3 hundreds
3. There are many ___ stars in the sky.
A. thousand B. thousand of C. thousands of B
A
C３.数学词的表达 ：
⑴ 分数的表达
　分子用基数词，分母用序数词．分子大于１，分母加s
Eg : 三分之一 one third 　　
　　 四分之三 three fourths / three quarters
⑵ 小数的表达 ：小数点用 “ point ”
Eg ：0.4 zero point four
⑶百分数的表达 ：分数用 “ percent ”
Eg ： 60 % sixty percent
ex :
One half of the students___ from China
A. is B. are C. was
2. One second of the work ___done by the computer
A. is B. are C.be
I have finished reading ___ of the book.
A. two third B. third one C. two thirds B
A
C用法：４．编号的表达　：
名词＋基数词=the +序数词+名词单数
Eg : class 7 / room 101 / bus No.7
Lesson one = the first lesson
5. 年、月、日的表达顺序 ：月 – 日 – 年
in 1998
in May, 1998
on May 4, 1998
on May 4th, 1998
6.其他重点表达:
1. 半小时 half an hour 半天 half a day
2. 两天半 two and a half days = two days and a half
3. 一至两天 one or two days = one day or two
4. 在20世纪90年代 in the 1990s
5. 在他30多岁 in his thirties
6. 一段5分钟的步行 a five- minute walk
= five minutes’ walk
7. 一座800米长的桥 an 800-metre-long bridge
7.时刻表达法
1.顺读:1).整点“点钟+o’clock”
6:00 at six o’clock
2)不整点 “点钟+分钟”(顺读）
6:05 six five 8:50 eight fifty
2: 15
3: 45
5: 30
8:02
9:10
10: 20
11: 25
12: 50
two fifteen
three forty-five
five thirty
eight two
nine ten
ten twenty
eleven twenty-five
twelve fifty
2.逆读 1): ≤30分钟用
分钟+past+点钟
“几点过几分”
6:05 five past six
7:30 thirty past seven
or half past seven
　1:02
2: 04
3: 10
4: 20
5: 25
6: 28
7:15
9:30
10:30
11:30
two past one
four past two
ten past three
twenty past four
twenty-five past five
twenty-eight past six
fifteen past seven
half past nine
half past ten
half past eleven 2): ＞30 分钟+to+点钟(+1)
差几分到…….点
8:50 ten to nine
10:45 fifteen to eleven
or a quarter to eleven

6:35
7:45
9:55twenty-five to seven
a quarter to eight
five to ten8：25 twenty-five past eight
9:15 fifteen past nine
or a quarter past nine
10:15
10:12
11:30
12:15
12:30
a quarter past ten
twelve past ten
half past eleven
a quarter past twelve
half past twelve1. I often get up at ___.
A. six twenty B. thirty-one past six
C. thirty-one to six
We have class at ___.
A. eight thirty B. twenty eight C. half to eight
6:55 is ____.
A. six five B. five to six C. five to seven
4. He came here at ____.
A. two two B. two to forty C. forty two
5. He watched TV___.
A. thirty-five past eight B.twenty-five past eight
C. twenty eight
6. He spent ___ watching TV.
A. one and a half hour B. one and a half hours
C. one hour and half A
A
C
A
B
B7. There are ___ in an hour
A. thirty B.sixty C. seventy
8. Children’s Day is on ____.
A. July 1st B. June 1st C. August 1st
9. We will learn ____.
A. first lesson B. Lesson one C. the one lesson
10.September is ___ month of the year
A. nine B. the ninth C. the nineth
11. There are ___ people in the field
A. hundred B. hundred of C. hundreds of
12. The ___letter in the word “cinema”is “I”
A. first B. second C. fourth
13. A quarter to seven is ___
A. 6:45 B. 7:45 C. 7:15 B
B
B
B
C
B
A14. How much is eleven and ___ ? It’s twenty
A. seven B. eight C. nine
15. December is the ___ month of a year.
A. twelve B. twelveth C. twelfth
16. My father has got eight ___ stamps .
A. hundreds B. hundred C. hundreds of
17.___ is the most difficult in this book
A. Lesson second B.The second lesson
C. Second lesson
18.There are forty-eight students in our class.
Twenty-nine of us are boys . ___ are girls.
A. nineteen B. twenty C. twenty-one C
C
B
B


A