Let the Ss look and tell what these pictures are about.

T: Good. They are wheels. You know the wheel is also an invention in history. Wheels play an important role in our life.

Let the students think over and make a list of the usages of wheels.

Activity two: Complete the table.

T: Look at the types of transport in the Key Words and then ask your desk-mate the following questions. After that, please complete the table and check together.

Questions:

1. How do you travel on land?

2. How do you travel by sea? And in the air?

3. Which types of transport cause pollution?

4. Which types of transport have got wheels?

Let the Ss do pair question-answer practice and then complete the table.

Travel on land bicycle, bus, car, lorry, motorcycle, train, the underground, minibus Travel by sea boat, ferry, ship Travel in the air plane, helicopter, balloon Cause pollution except for bicycle Have got wheels plane, bicycle, bus, car, lorry, motorcycle, train, minibus Activity three: Talk about types of transport

T: Now work in pairs and think about the 3 questions.

Questions:

1. Which types of transport have you traveled in or on?

2. Which types of transport do you use regularly?

3. Which types of transport would you like to travel in or on?

Let the Ss talk about the questions in pairs and then ask them to make dialogues after the example.

Example: