人教版七年级上册Unit 8 When is your birthday?Section A 3a-3c Grammar 课件（共有PPT35张）

(共35张PPT)
Unit 8
When is your birthday
Section A 2
Grammar focus-3c
Quick response
快速抢答。根据图片，快速说出对应月份。
Review the months words
January is the first month of the year.
February is the second month of the
year.
March is the third month of the year.
序
数
词
February
January
March
______is the fourth month of the year.
________is the fifth month of the year.
________is the sixth month of the year.
________is the seventh month of the year.
_________is the eighth month of the year.
April
May
June
July
August
序
数
词
September is the ___________ month of the year.
October is the __________month of the year.
November is the _____________month of the year.
December is the _____________month of the year.
ninth
tenth
eleventh
twelfth
序
数
词
Tom
Dale
Jim
Tom
Jim
Dale
Jim is the first
Dale is the second
Tom is the third.
序数词表示顺序
翻译成第...
1. 你的生日是什么时候？
_____ ____ your birthday
2. 我的生日是5月2日。
My birthday is ___ ____ ____.
3. 他的生日是什么时候
_____ ____ his ________
4. 他的生日是在1月17日。
His ________ is ____ ________ 17th.
5. 她的生日是在什么时候？
When is ____ ________
Presentation
When is
When is birthday
on May 2nd
her birthday
一、根据汉语提示
补全下列句子。
birthday on January
6. 是在八月份。______ ____ August.
7. 爱丽丝的生日是什么时候？
When is ______ _________
8. 她的生日在九月五日。
____ birthday is ____ ____________ 5th.
9. 你爸爸的生日是什么时候？
When ___ ______ _________ birthday
10. 他的生日是在4月21日。
____ _________ is _____ ______ 21st.
His birthday on April
is your father’s
It’s in
Alice’s Birthday
Her on September
4th 5th 6th 7th 8th 9th 10th 11th 12th
13th 14th 15th 16th 17th 18th 19th 20th
30th
one two three four five
six seven eight nine ten eleven twelve
基数词
thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three thirty
基数词
first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth
序数词
thirteenth fourteenth fifteenth sixteenth seventeenth eighteenth nineteenth twentieth twenty-first twenty-second twenty-third thirtieth
序数词
1st
2nd
3rd
21st
22nd
23rd
写出下列基数词的序数
one ______ two ________ three ______
five ______ eight _______ nine _______
twelve ________ fifteen _________
eighteen __________ twenty __________
twenty-one ______________
twenty-two ______________
first
second
third
fifth
eighth
ninth
twelfth
fifteenth
eighteenth
twentieth
twenty-first
twenty-second
watch a video and summarize.
序数词: 表示数目顺序的词, 其前常加定冠词the。 数字 序数词变化规则 例词
1、2、3 特殊记 one → first 第一 two → second 第二; three → third 第三
4～19 基数词词尾加____ 特殊：five→ fifth第五; eight → eighth 第八; nine → ninth 第九; twelve → twelfth 第十二
一般：four → fourth 第四
nineteen → nineteenth 第十九
[总结]
-th
20, 30 40, 50, 60, 70, 80, 90 -ty变为____再加th twenty → twentieth 第二十
thirty → thirtieth 第三十
forty →fortieth 第四十
fifty → fiftieth 第五十
sixty → sixtieth 第六十
seventy → seventieth 第七十
eighty → eightieth 第八十
ninety → ninetieth 第九十
其余两位数 将相应基数词的个位改为序数词 twenty-one → twenty-first 第二十一；thirty-nine → thirty-ninth第三十九；forty-six →
forty-sixth 第四十六
-tie
【记忆口诀】
基变序，有规律，多数词尾加-th。
一、二、三特殊记，词尾字母t, d, d。
八去t, 九去e，字母f把ve替，然后再加
-th。
遇到几十几，只变个位就可以。
序数词表顺序，一般须加定冠词。
序数词的用法：
1. 序数词要加定冠词the。但当序数词前有物主代
词(his, her…)、指示代词(this, that…)等修饰
时，则不必再用the。如：
on the third floor 在三楼
on his twelfth birthday 在他十二岁生日这天
2. 序数词常用缩写形式，即“阿拉伯数字+个位
序数词的后两个字母”。如：one → 1st;
second→ 2nd; third → 3rd; twelfth → 12th;
twenty-sixth → 26th
3. 序数词可表示日期“几月几日”中的“几日”。如: August 17th 8月17日 October 1st 10月1日
3a
Match the questions and answers.
Answers:
a. No, it’s on the 6th.
b. Her birthday is on May 24th.
c. Yes, it is.
d. Their birthdays are in January.
e. It’s on June 16th.
A: How ______ are you, Grace
B: _____ twelve.
A: And _____ is your birthday
B: My ________ is on March 12th. How about you and Tom
A: Well, my birthday is _____ July 5th, and Tom’s birthday is ______ December.
3b
Complete the conversation and practice it with your partner.
A: How ______ are you, Grace
B: _____ twelve.
A: And _____ is your birthday
B: My ________ is on March 12th. How about you and Tom
A: Well, my birthday is _____ July 5th, and Tom’s birthday is _____ December.
Check the answers then practice it with your partner.
old
when
I’m
birthday
on
in
由答语twelve为岁数，可知第一空应用how old来询问岁数。
由上句所问为“you”，因此回答应用“I”, 可知第二空填写I’m。
第三四两句为对生日的日期提问, 可知第三空填疑问词when，第四空填birthday。
第五空后面为具体的日期，故用介词on；第六空后面只有月份，故用介词in。
3c Talk about your group members’ birthdays(小组成员的生日)and ages
(年龄). Line up(排顺序)from the youngest(最小的) to the oldest(最大的).
A: How old are you
B: I am...(years old).
A: When is your birthday
B: My birthday is on..../
It's on....
先对话，然后列表排序.
There are students in my group.
They are and .
is the youngest.
His/her/my birthday is .
is the oldest.
His/her/my birthday is .
Do a report （组长作报告）
二、单项选择。
1. — _______ is your birthday
— It’s on June 15th.
A. What B. How C. When
2. — ______ is your aunt
— She’s twenty-three.
A. When B. How old C. What color
3. January is the ____ month of the year.
A. first B. second C. fifth
C
B
A
4. My grandparents’ birthdays are ____
July.
A. at B. in C. on
5. — Is your birthday party _____ eight
this morning
— No, it’s ______ September 12th.
A. at, in B. on, in C. at, on
B
C
1. 记忆所学序数词。
2. 编一个询问生日及年龄
的小对话。