(共36张PPT)
Unit 4 When is the art show
PB Let's learn
人教PEP 五年级下册
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first
third
Aug. 1st
Nov. 2nd
Sept. 4th
fifth
fourth
second
5月1日singing contest
4月5日school trip
2月3日English test
11月4日 sports meet
7月3日Chinesetest
3月1日swimming contest
6月2日my birthday
9月4日
my sister’s birthday
Secret cards
When is ... It’s in/on ...
When is ... It’s in/on ...
Lead in
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Who are they
They are all my family members.
Lead in
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Meet my family.
This is my grandpa.
When is grandpa’s birthday
It's on October 12th.
Presentation
twelfth
/twelfθ/
(twelfth=12th)
基数词变序数词, 巧记变化规则:
ve要用f替(即改ve 为f 再加th）
例如：five-fifth twelve-twelfth
12
th
序数词缩写直接在数字12后面加th变成 12th
Presentation
October 12th
When is Grandpa’s birthday
It’s on ____________.
October 12th
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Meet my family.
This is my grandma.
When is grandma’s birthday
It's on April 20th.
Presentation
Presentation
twentieth
/ twenti θ/
基数词变序数词, 巧记变化规则:
整十基数变序数, 先把y变成ie 再加th
例如：twenty-twentieth
20
th
( twentieth=20th)
序数词缩写直接在数字20后面加th变成 20th
Presentation
April 20th
When is Grandma’s birthday
It’s on ____________.
April 20th
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Meet my family.
This is my dad.
When is dad’s birthday
It's on November 30th.
Presentation
Presentation
thirtieth
/ θ ti θ/
基数词变序数词, 巧记变化规则:
整十基数变序数, 先把y变成ie 再加th
例如：thirty-thirtieth forty-fortieth
30
th
( thirtieth=30th)
序数词缩写直接在数字30后面加th变成 30th
Presentation
November 30th
When is dad’s birthday
It’s on ____________.
November 30th
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Meet my family.
This is my mum.
When is mum’s birthday
It's on February 23rd.
Presentation
Presentation
twenty-third
/ twenti θ d/
基数词变序数词, 巧记变化规则:
要是遇上几十几,十位基数,个位序
例如：twenty-three-twenty-third
23
th
( twenty-third=23rd)
序数词缩写直接在数字23后面加th变成 23th
Presentation
Febuary 23rd
When is mum’s birthday
It’s on ____________.
Febuary 23rd
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When is your birthday
It's on August 21st.
Presentation
August
21st
My
birthday
Presentation
twenty-first
/ twenti f rst/
基数词变序数词, 巧记变化规则:
要是遇上几十几,十位基数,个位序
例如：twenty-one-twenty-first
21
st
( twenty-first=21st)
序数词缩写直接在数字21后面加th变成 21th
23th
twenty-first
12th
30th
twelfth
thirtieth
twentieth
12th
21st
20rd
Game time
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Look and say
When is _____________
Grandpa's birthday
It's on _________.
October 12th
Ask and answer
—When is ________
—It’s on _______.
（ ）
1
（ ）
2
（ ）
3
（ ）
4
（ ）
5
Listen and number.
听音标序
第三十
第二十三
第二十一
第十二
第二十
基数词→序数词的变化规则
特殊情况(不规则变化)
1
2
3
5
8
9
12
基数词
序数词
one
first
two
second
three
third
five
fifth
eight
eighth
nine
ninth
twelve
twelfth
基变序，有规律;
123特殊记，词尾各是t, d, d。th, 要从4加起，8去t, 9去e，ve要用f替。
除特殊情况外，4~19的序数词一般直接在词尾加th
four→ nineteen→
以ty结尾的整十数的基数词要先变词尾的y为ie，再加th
twenty→ ninety→
fourth
nineteenth
twentieth
ninetieth
20以上非整十的两位数只将个位数变为序数词
twenty-one→
ninety-seven→
twenty-first
ninety-seventh
Look and write
1st
2nd
3rd
4th
12th
13th
14th
15th
16th
17th
18th
19th
20th
21st
22nd
23rd
24th
25th
26th
27th
28th
29th
30th
31st
What can you find
词尾逢1都是数字加st, 除了11是11th。如1st,21st, 31st...
词尾逢2都是数字加nd, 除了12是12th。如2nd,22nd, 32nd ...
词尾逢3都是数字加rd, 除了13是13th。如3rd,23rd, 33rd...
除上述情况外，其他序数词简写形式都是数字加th
数字+序数词的最后两个字母
序数词缩写的构成
When is your father’s birthday
It's on May 26th.
May 26th
Dad’s birthday
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It's on _____.
When is _________
写出家人的生日信息并进行问答
Think and say
词汇： 单词或词组
（拼写， 意思， ）
句型: ...
...
I can say
Let’s learn!
Summary
学习词汇：twelfth(12th), twentieth(20th),
twenty-first(21st), twenty- third(23rd), thirtieth(30th), 序数词的简写及其规律
学习句型：When is ...'s birthday
It is on +具体日期.
I can do!
1. 听录音跟读let's learn 部分单词和句子。
2. 抄写本节课5个序数词,每个一行。
3. 制作家人的生日信息卡，然后运用所学句型进行问答
4. 完成配套练习。
Homework
https://www.21cnjy.com/help/help_extract.php中小学教育资源及组卷应用平台
【本套同步练习包含口语练习和笔试练习两部分， 学习英语，英语口语的位置十分重要， 包括现在的很多重要考试都开始重视英语的听说能力， 大胆开口说英语， 告别哑巴英语】
Unit 4 When is the art show PB Let's learn同步练习
笔试训练
按要求写出下列数字。
12 20 21 23 30
基数词
序数词
缩写词
写出下列英语。
1. 4月21日____________ 2. 5月12日____________
3. 8月14日___________ 4. 12月20日____________
5. 9月15日____________ 6. 2月23日____________
7. 7月22日____________ 8. 3月18日____________
选择题
( )1. My birthday is ____July 20th.
A. in B. on C. /
( )2.My ____birthday is on May Day.
A. brother B. brothers C. brother’s
( )3. There are ________ days in June.
A. thirty B. thirtyth C. thirtieth
( )4. Mother's day is on the _____ Sunday in May.
A. two B. twoth C. second
( )5. I’m ______ years old now.
A.twelve B. twelfth C. twelveth
选择合适的选项补全对话。
Amy: 1. _____________.
Mike:My birthday is on May 1st.
Amy:Wow. 2.___________.
Mike: Yes. What about you
Amy:3. _________.
Mike: What will you do on your birthday
Amy: 4.____________.
That’s May Day. I’ll have a birthday party. When is your birthday D. My birthday is on June 10th.
按照实际情况回答。
1.When’s your birthday
___________________________________
2.When’s your father’s birthday
___________________________________
3.When’s your mother’s birthday
__________________________________
What will you do for your mum on her birthday
__________________________________
口语训练
快速说出下列日期的英文。
问答练习。
e.g. -When is ...'s birthday
-It is on ______.
Cindy's birthday is on Apr. 15th
调查5个同学的生日， 然后做好登记并尝试做汇报。
Name
birthday
-When is your birthday
-It’s on ...
参考答案
12 20 21 23 30
基数词 twelve twenty twenty-one twenty-three thirty
序数词 twelfth twentieth twenty-first twenty-third thirtieth
缩写词 12th 20th 21st 23rd 30th
1. April twenty-first 2. May twelfth
3. August fourteenth 4. December twentieth
5. September fifteenth 6. February twenty-third
7. July twenty-second 8. March eighteenth
BCCCA
CADB
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口语略
口语略
口语略
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