9. She wants ____ you her new bike.

A. show　　 B. shows　　 C. to show　　 D. showing

8. Look ! There are ____ birds in the tree.

A. two hundreds　　 B. forty nine　　 C. three hundreds　　 D. hundreds of

7. There are many _____ in the fridge.

A. bottle apple juice　　　 B. bottles of apple juice　　

C. bottle of apples juice　　 D. bottle apple juices

6. Here _____ many books on sale.　　

A. is　　 B. are　　 C. have　　 D. has

5. - How much are these coats ?　　 -______.

A. They are small　　 B. Fifty yuan　　 C. They are yellow　　 D. They are new

4. Two plus four _____ six.　

A. equals　　 B. is equal　　 C. to equal　　 D. equal

3. - ____ for one book ?　　 - Ten yuan.

A. What　　 B. How　　 C. How many　　 D. How much

2.-What is twenty ____ two ?　 　- _____eighteen.

A. plus, It’s　　 B. and, They’re　　 C. minus, They’re　　 D. minus, It’s

Exercises:

Choose the correct answer.

1.____ the old book on sale?　

A. Does　　 B. Do　　 C. Are　　 D. Is

2. Auction

T: This is a basketball that Yao Ming used. How much is it, do you think?

S1: Fifty yuan.

S2: Five hundred yuan.

S3: Five hundred and fifth yuan.

Give the basketball to the one who bid the highest price.

Ask one student to be an auctioneer.

S: This is Zhou Jielun’s T-shirt. How much is it?

...

Give the T-shirt to the one who bid the highest price.

S: This is ...

Practise “How much is / for ......” and numbers by playing the game, auction.

Step V Ask and answer

Write the structures “ … plus / minus… equals … What’s …plus / minus…It's ...?” on the Bb. Explain them to the class. Then ask and answer with cards with numbers. For example:

T: What’s three plus four?

S: It’s seven.

T: What’s eighty minus thirty?

S: It’s fifty.

Or let Ss describe with sentences: What can they see on the cards? For example:

Twenty plus sixteen equals thirty-six.

Forty-seven minus twenty-two equals twenty-five.

Ask more Ss to practise the sentences or let them practise in pairs.

Language points:

“… plus / minus… equals …”.

句中plus是介词“加上”，也可用and代替；equal是动词，意为“等于”，此句中也可用be动词代替，通常把算式看作一个整体，所以 equal 和be 动词都用单数形式。

e.g. Five plus / and nine equals / is fourteen.

Step VI Competition

Show some maths exercises on the screen. Say them with “ … plus / minus… equals …”.

Divide the class into two groups (boys and girls) to have a competition. The group who can say the most exercises and answers in English in one minute will win the game.

Step VII Homework