文档介绍：A
Step 1: revision
If you still remember when the first paper was made?
What about kites?
When wheelbarrows were invented?
Can you name any famous inventors?
What did they invent?
Do you know any of their stories?
Step 2: Part &
Read the dialogue in and fill in the blanks in ;
Step 3: Part
1. Divide Ss into some groups and play a similar game as .
2. Each group introduces an inventor.
Step 4: Homework
1. Wb. L. 16 Exx 1, 2 & 3.
2. Recite the first paragraph.
3. Revise L1 for memory tips and get ready for memory petition next class.
B
Step 1: Part &
1. Preview the practice in & ;
2. Listen to the materials and finish the practice in and .
Step 2: Part
1. Listen to the material in again, and summarize the useful expressions:
It’s a big object.
It’s about 8 to 10 cm long and 6 to 8 cm wide.
It’s not very heavy. It’s thin and hard.
It’s round and made of plastic.
In the middle of the object t