4.　　　 Packaging makes the most garbage.

3.　　　 In just one day, Americans throw out 136 million kilograms of packaging.

2.　　　 Plastic makes the most garbage.

1.　　　 Every year, each person in North America makes about 1000 kilograms of garbage.

2.　　　 What can be recycled?

Step2. Work in groups.

Let the students go to the dustbin to collect some garbage and take them to the classroom.

Ask the students name them and compare the qualities.

Let the students look up the books and the dictionaries when they are in trouble. Help them when they can’t express correctly.

Step 3. Listen to the tape finish Exercise 2 in the activity book.

1.　　　 What kinds of rubbish do you throw every day? Can you name them?

2.　　　 Learn new vocabulary for describing materials and for comparing qualities.

Teaching Difficult Points:

Describe materials and comparing qualities.

Teaching Preparation: pictures

Teaching Aids: audiotape, flashcards, pictures

Teaching Procedure:

Step1. Remind the students:

1.　　　 Offering help.

2.　　　 Learn about the pollution problems in our life.

Teaching Important Points:

1.　　　 Call on the students to take actions to protect our environment.