人教PEP版小升初语法数词之序数词课件（32张PPT）

(共32张PPT)
1
2
3
序数词的定义
序数词的表达方法
序数词的用法
考点
数词考点01-07课前测
1. Sunday is the _______ day of a week.
2. September is the ______ month of a year.
3. Usually there are _______ months in a year.
Can you judge them,基or序
表示数量的顺序
表示数量的顺序
表示数量的多少
first
ninth
twelve
four
基数词
序数词
fourth
4th
seven
seventh
7th
eleven
eleventh
fifteen
fifteenth
11th
15th
变
考点08：序数词的表示方法
1. “基变序，有规律，词尾加上th，
一，二，三，单独记，词尾字母t，d，d，
one
two
three
first
second
third
1st
2nd
3rd
1
2
考点08：序数词的表示方法
2. “一，二，三，特殊记，词尾字母t,d,d
8 eight
eighth 8th
9 nine
ninth 9th
考点08：序数词的表示方法
3. “八去t， 九去e，再加-th，
5 five
5th
fifth
12 twelve
twelfth
12th
考点08：序数词的表示方法
4.five，twelve两兄弟，ve要用f替，
20 twenty
twentieth 20th
考点08：序数词的表示方法
5.整十基变序，ty变成tie，再加-th,
twenty-four
twenty-
thirty-one
thirty
fourth
-first
不变
变
不变
变
考点08：序数词的表示方法
6.若是遇到几十几，只变个位就可以
基变序，有规律，四以上加上-th，
一，二，三，单独记，词尾字母t，d，d，
八去t， 九去e，再加-th，
five，twelve两兄弟，ve要用f替，
整十基变序，ty变成tie，再加-th,
要是遇到几十几，十位基数个位序。
1. June is the _____ month of the year
A. five B. six C. seventh D. sixth
2. The _____ month of a year is December
A. two B. second C. twelve D. twelfth
3.The ___ question is much easier than this one.
A. sixth B. six C. sixteen D. sixty
D
D
A
即学即练
Summary
May 1st
the first of May
May the first
考点09：日期表达
June 1st
the first of June
June the first
英语表达顺序：
1.日 of 月，年
2.月 日，年
Teachers’ Day (教师节) is ___________
Christmas Day (圣诞节)is ____________
New Year’s Day (元旦)is ____________
April Fool’s Day (愚人节)is __________
Tree Planting Day (植树节) is __________
即学即练
September 10th
December 25th
January 1st
April 1st
March 12th
Summary
five eighths
one third
five sixths
four ninths
考点10：分数表示法
口诀：
子用基，母用序，
分子大于1，分母加”s”
1
4
分子 a
分母 quarter
a quarter
3
4
three quarters
1
2
a half
1
3
three and one third
3
基数词 + and + 分数
带分数：
整数和分数之间要加and
1．______ of the floor _______ wet.
A. Three quarter ; is B. Three fourths ; is
C. Three fourth ; are D. Three quarters ; are
2．About ____ of the workers in my company ____ to work every day．
A．one-two ; drives B．one-seconds ; drive
C．one-second ; drives D．a half ; drive
即学即练
B
D
Summary
I have been to Sanya twice.
I visited my grandparents four times last month.
考点11：次数表示法
Tips:
“一次” once， “两次” twice ，“三次”基数词+times
He has tried once and he wants to try a second time.
Tips:
a+序数词“又一，再一”
1.I wonder if I can ask him _______time.
A. four B. fourth C. the fourth D. a fourth
2.Although I failed four times, my father encouraged me to have a ________ try.
A．third B．fourth C．fifth
即学即练
D
C
Summary
They study in the ninth Middle School.
We take Bus Eleven to the park.
考点12：基数词，序数词的相通用法
编号表达Tips:
名词+基数词
=the +序数词+名词
其他常考表示编号
第五课 ：Lesson Five= the fifth lesson
第23页：Page 23= the 23th page
第八行： Line Eight =the eighth line
房间102：Room one zero two
三年级五班：Class Five ，Grade Three
第一节：Section One =the second section
Summary
He was born in 19 61.
He was born in 19 79.
考点12：基数词，序数词的相通用法
20世纪60年代
the sixties of the twentieth century
20世纪70年代
the seventies of the twentieth century
20世纪90年代
=in the 1990s
in the
nineteenth
nineties
年代世纪表达法
Tips:
世纪序数词，年代基数词整十复数
Summary
1. There will be more chances in ____ century than in _____ century.
A. twenty-one, twenty B. twenty-first, twentieth
C. the twenty-first, the twentieth
2. The city changed a lot ___.
A. in 1980s
B. in the 1980s
C. in the 1980
即学即练
C
B
1. John is 180 centimeters tall, and his daughter is 90.So he is twice ________ she.
A．so tall as B．as tall as C．much taller than D．less than
2. _______of our classmates are good at basketball.
A.Three quarters B.Three fourth C.third four
2.About _______ of the students are playing on the playground.
A. two third’s B. two thirds C. two third
真题演练
B
A
B
1.He has lived at ______ for 30 years.
A. No.101 Heping Street B.101 Heping Street
C. Heping Street 101 D. Heping street No.101
2.You can find him in______.
A.Room201 B.201Room
C.theRoom201 D.the201Room
真题演练
A
A
Summary
1.掌握序数词的表示方法
2.掌握日期的表达方法
3.掌握分数的表达方法
4.掌握世纪年代的表达方法
5.掌握次数，编号的表达方法