1. Unit 1 Making New Friends
Topic 3
How old are you?
Section B

2. Let’s review. A: Hello, I am Kangkang. What’s your name?
B: My name is Lily.
A: How old are you?
B: I am thirteen.
A: What class are you in?
B: I am in Class Three, Grade Seven.
A: Who’s that ?
B: That’s Maria.

3. This is a TV.
What’s this in English?
It’s a pencil.
This is a CD.

4. an apple
an eraser
What’s this in English?
It’s …
a map
a book

5. 你知道吗？ a和an的区别 1. a 用在以辅音音素开头的单词前。 例如：a book， a desk
2. an 用在以元音音素开头的单词前。 例如：an egg， an apple

6. a car
a pencil
a pen
a book
a map
an apple

7. an apple
an orange
an eraser
an egg

8. a
desk an
apple a
pencil an
eraser a
ruler

9. A: What’s this in English? B: It’s an eraser. A: How do you spell it?
Let’s say together.
A: What’s this in English?
B: It’s an eraser.
A: How do you spell it?
B: E-R-A-S-E-R, eraser.

10. Look, listen and say. （视频P19-1a） It’s an eraser. Section B
Excuse me, what’s this in English?
map
eraser
pen
pencil
desk
It’s an eraser.

11. A: What’s this in English?
B: It’s a pen.
A: How do you spell it?
B: P-E-N, pen.
A: Thank you.
B: That’s OK.

12. A: What’s that in English?
B: It’s a toy.
A: Can you spell it, please?
B: Yes. T-O-Y, toy.
A: Thanks.
B: You’re welcome.

13. book It’s ________. a book What’s that in English?
How do you spell it?
book
B-O-O-K, _______.

14. A: What’s this in English? B: It’s A: How do you spell it? B:
a pencil-box.
P-E-N-C-I-L-B-O-X, pencil-box.
a book.
B-O-O-K, book .
an eraser.
E-R-A-S-E-R, eraser.
a ruler.
R-U-L-E-R, ruler.
a pen.
P-E-N, pen.

15. Listen and complete the conversations.
(录音P19-1b)
A: Excuse me , what’s ____ in English?
B: It’s _____ pencil.
A: How do you spell it?
B: P-E-N-C-I-L, ______.
A: Thank you.
B: ______ ________.
this a
pencil
You’re welcome

16. A: Excuse me, what’s ____ in English?
B: It’s _____ apple.
A: ___ ____ ____ ____, please?
B: Yes, A-P- P-L-E, apple.
A: _______.
B: That’s OK.
that an
Can you spell it
Thanks

17. Practice What’s this/that in English? It’s a/an …
How do you spell it? / Can you spell it? …
Practice

18. Listen and complete the conversation with the correct words
Listen and complete the conversation with the correct words. Then practice with your partner.
（视频P20-2a）
telephone
Is this a _________?
toy
No, it isn’t. It’s a ____.
Is that a toy, too?
eraser
No, it’s an _______.
An eraser? Wow!

19. That is a toy. Is that a toy?
你发现他们有什么规律了吗？
This is an eraser Is this an eraser?
That is a toy Is that a toy?
be动词的位置发生了变化。
句型也由陈述句变成了一般疑问句。

20. A: Is this an eraser?
B: Yes, _____.
A: Thank you.
it is
A: Is that a pen?
B: No, _______.
It is a pencil.
it isn’t

21. A: Is this an orange?
B: No, it isn’t. It’s an apple.
A: Is that a desk?
B: Yes, it is.
A: Is he Tom Cruise? B: A:
B: No, he isn’t. He is from
America.
Yes, he is.
Is he from England?

22. A: What’s this in English?
B: Is it a/an …?

24. Let’s play a game.
Touch and guess what it is with eyes covered. Use sentences of identifying objects.
Example:
What’s this in English?
Is it a/an …?
Yes, it is. How do you spell it? /
No, it isn’t. Please try again.

25. Sum up Patterns : What’s this/that in English? It’s a/an …
How do you spell it? / Can you spell it?
Is this/that a/an …?
Yes, it is. / No, it isn’t.
2. New words: a/an, spell, can, please

26. Homework
（1）总结：在学过的名词中，哪些前面加a，
哪些前面加an。
（2）参考1a/2a，自编两则对话。

27. Good-bye!