人教版(PEP)英语六年级下册序数词大通关 课件(共32张PPT)

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人教版(PEP)英语六年级下册序数词大通关 课件(共32张PPT)

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(共32张PPT)
大通关
序数词
主讲老师:
Introduce yourself
My name is____.
I’m _____ years old.
I’m from______.
I like________.
目录
序数词通关秘籍之—认识序数词
Warm up
序数词通关秘籍之—学写序数词
序数词通关秘籍之—会用序数词
Warm up
Let's go!
one ____ ____ four ____
six ____ eight ____ ten
eleven _____ thirteen ____ fifteen
sixteen ____ eighteen nineteen twenty
twenty-three
sixty-seven
forty-eight
fifty-four
thirty-six
ninety-two
seventy-one
eighty-nine
There are _____ days in a week.
There are _____ days in October.
Four plus(加) _______ is twelve.
Eight plus _______ is fifteen.
01. 啥是序数词
序数词:表示顺序的数词叫序数词
表示第一,第二,第三……
02.序数词怎么写
总体上:序数词在基数词的基础上进行变化
变化秘籍:
基数词变序数词记忆口诀:
一、二、三,特别记,
四之后,有规律,词尾加上th
八去t,九去e,
ve结尾时,f来替,
以y结尾时,变ie
若是几十几,前基后序别忘记。
特殊单词的变化(需要特别记忆)
one → first
two → second
three → third
第一 first
第二 second
第三 third
一、二、三,特别记
规则单词的变化 (从4往后)
一般情况下,我们会在基数词后面加上th变成序数词
four → fourth
six → sixth
ten → tenth
seven→ seventh
四之后,有规律, 词尾加上th
注意:
eight要去t加th,nine要去e加th
five和twelve里的ve要变成f加th
five— fifth twelve— twelfth
八去t,九去e; ve结尾时,f来替
小试牛刀
写出4-19的序数词,可以试试吗?
eleventh
twelfth *
thirteenth fourteenth fifteenth
sixteenth
seventeenth
eighteenth
nineteenth
fourth
fifth *
sixth
seventh
eighth *
ninth
tenth
看看你做的怎么样
整十的序数词要把结尾的y变成ie加th
如:
twenty → twentieth
thirty → thirtieth
forty → fortieth
fifty → fiftieth
以y结尾变ie
你能写出sixty,seventy,
eighty,ninety的序数词吗??
小试牛刀
twentieth
thirtieth
fortieth
fiftieth
sixtieth
seventieth
eightieth
ninetieth
hundredth
看看你做的怎么样
十位数用基数词
个位数用序数词
第21 twenty-first
第35 thirty-fifth
第42 forty-second
第53 fifty-third
第66 sixty-sixth
若是几十几,前基后序别忘记
first,second, third
fourth,sixth
eighth,ninth
fifth, twelfth
twentieth, thirtieth, fiftieth
twenty-first
基数词变序数词记忆口诀:
一、二、三,特别记,
四之后,有规律,词尾加上th
八去t,九去e,
ve结尾时,f来替,
以y结尾时,变ie
若是几十几,前基后序别忘记。
03.怎么用序数词
序数词的用法
(1)表示顺序
例如:
I'm first. I'm the winner.
He is always the first to come to school.
他总是第一个来学校。
Sunday is the first day of the week.
序数词的用法
(2)表示楼层
例如:
I live on the fourth floor.
Our classroom is on the fifth floor.
序数词的用法
(3)表示日期
几月几日中,日用序数词
通常写成5 May 或May 5th ,
而在口语中则通常说成 the fifth of May,May the fifth,May fifth
Teacher's Day(教师节) is on the first of September(九月).
04. 练习时间
请写出对应的基数词或者是序数词
one ____
two ____
three ____
____ fifth
____ seventh
eight ____
ten ____
twenty ____
____ thirtieth
twenty-one ____
____ thirty-sixth
____ seventy-second
ninety-three ____
eighty-twelve ____
1. Children's Day(儿童节) is on the ______ of June(六月).
2. There are ______ months(月)in a year(年).
3. February is the ______ month of the year.
4. There are _____ (12)floors, the office is on the _____ (5) floor.
根据句子意思填空
( )1. My cousin's birthday in on the _____ of October.
A. three B. first C. the second
( )2. What date is it today It's _____ of April.
A. twelfth B. the 12th C. 12th
( )3. There are _____ days in a week.
A. the seven  B. seventh  C. the seventh  D. seven
( )4.Sunday is the _____ day of a week.
A. one B. first C. second
选择题
本课总结
课后作业
写出1-100的基数词,
和对应的序数词
下课啦!
主讲老师:

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