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(共24张PPT)
第1课时 Get ready
Unit 3
How do we use numbers
Unit 3
How do we use numbers
one
two
three
four
five
Review the numbers
six
seven
eight
nine
ten
eleven
twelve
thirteen
fourteen
fifteen
sixteen
seventeen
eighteen
nineteen
twenty
one
two
three
four
five
six
seven
eight
nine
ten
1
2
3
4
5
6
7
8
9
10
eleven
twelve
thirteen
fourteen
fifteen
sixteen
seventeen
eighteen
nineteen
twenty
11
12
13
14
15
16
17
18
19
20
Let’s read
Watch and sing
Can you do the math problems
How do you say these in English
Let’s learn
加；加号
/pl s/
减；减号
/ ma n s/
等于
/ i kw l/
Let’s learn
答案；回答
/ ɑ ns (r)/
Can you translate now
Two plus eight equals ten.
Fifteen minus six equals nine.
Eleven minus ten equals one.
Six plus six equals twelve.
Ten minus three equals seven.
Five plus nine equals fourteen.
Eighteen plus two equals twenty.
18+2=20
5+9=14
11-10=1
6+6=12
10-3=7
Read and match
1 2 3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18 19 20
Can you sort the numbers into two groups
1 2 3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18 19 20
Let’s learn
1 3 5 7 9 11 13 15 17 19
2 4 6 8 10 12 14 16 18 20
奇数
/ d n mb z/
偶数
/ i vn n mb z/
1
15
3
18
6
7
8
Quick response
19
A
Listen. Then point and say.
minus
even
numbers
answer
减号
加号
odd
numbers
等于
Practise
equal
奇数
B
Circle the correct answer.
Let’s learn
This is an odd number.
This is an even number.
表达某个数是奇数/偶数：
odd和even都是以元音音素开头，
前面用不定冠词an。
C
Look at the headings and guess.
Ten hats!
Tanya loves hats.
She has ten hats.
There are three hats for rainy days
and seven hats for sunny days.
Seven T-shirts!
Leon’s favourite clothes are his T-shirts.
He has seven T-shirts.
Four T-shirts are blue,
and three T-shirts are white.
I think it’s about ...
D
Look at the headings on pages 24–25 and guess.
I think it’s about ...
Words:
Sentences:
plus, minus, equal, answer,
odd numbers, even numbers
1. Ten plus two equals twelve.
2. Ten minus two equals eight.
3. This is an odd/even number.
Summary
1.熟读并记忆本课时的重点单词；
2.翻译五个简单的数学算式题。
Homework

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