B Let’s learnB Let’s learn

A long time ago in China lived the Jade Emperor. It was his birthday. He wanted to measure time to know how old he was.

Chinese Zodiac 十二生肖

Rat 鼠 Ox 牛

Rat first 1st

Ox second 2nd

Tiger third 3rd

Rabbit fourth 4th

Dragon fifth 5thfive

Snake sixth 6th

Horse seventh 7th

Goat eighth 8th

Monkey ninth 9th Rooster tenth 10th

Dog eleventh 11th

Pig twelfth 12th

twelve

序数词 :

基数词 +th

例外：

1st

2nd

3rd

January is the _______ month of a year.first

one

February is the _______ month of a year.second

two

March is the _______ month of a year.third

three

April is the _______ month of a year.fourth

four

May is the _______ month of a year.fifth

five

June is the _______ month of a year.sixth

six

July is the _______ month of a year.seventh

seven

August is the _______ month of a year.eighth

eight

September is the _______ month of a year.

ninth

nine

October is the _______ month of a year.tenth

ten

November is the ________ month of a year.eleventh

eleven

December is the ________ month of a year.twelfth

twelve

4 月

1It’s _________. Apr.1st

4 月

2It’s _________. Apr.2nd

4 月

3It’s _________. Apr.3rd

4 月

4It’s _________. Apr.4th

4 月

5It’s _________. Apr.5th

4 月

8It’s _________. Apr.8th

4 月

9It’s _________. Apr.9th

4 月

12It’s _________. Apr.12th

4 月

20It’s _________. Apr.20th

twenty-twentieth

Let’s learnLet’s learn

Let’s talk

A: When is your birthday?

B: My birthday is __________.

What about you?

A: My birthday is __________.

2 月 5日

8 月 1日

Feb.5th

Aug.1st

National Day Children’s DayNational Day Children’s Day

Women’s Day Teachers’ DayWomen’s Day Teachers’ Day

Army Day New Year’s DayArmy Day New Year’s Day

When is When is Teachers’ Day??

It’s September 10It’s September 10thth..

yraunaJ August3

January

rd

May

th

5October

th

8June

th

September

th

March

th 20July

th

stst ndnd

1 2

3

4

5 6

7

89

yraunaJ

August

3January

rd

May

th

5October

th

8June

th

September

th

March

th

20July

th

stst

ndnd

1 2 3 4

5 6 7 8 9

Listen and tickListen and tick

√ √ √

√ √

John gets __ place. Tom gets ___ place.

Tim gets __ place. Mike gets __ place.

Bob gets __ place.

Listen and fill in the blanksListen and fill in the blanks

1st 2nd

5th

In the Marathon race,

( )

3rd 4th

表示数目顺序的词用序数词。表示数目顺序的词用序数词。1) 序数词 1-19 除第一 , 第二 , 第三 , 第五 , 第八 , 第 九 , 第十二变化不规则外 , 其余均由在基数词后加上 -th 。 　　　　　　　　　　　　　　　

2) 十位整数的序数词的构成方法，是将十位整数 基数词的词尾 -y 变成 i 再加 -eth 。 　　　　

3) 几十几的序数词 , 只是把个位数变成序数词 , 十 位数不变。