1.Purpose： 
(1)Ss learn the English names of the materials that can be recycled: plastic, glass, paper, cloth, metal.
(2) Bring up Ss’ environmental consciousness. 
2.Preparation: 
(1) Models of each material. 
(2) Pictures of 20 things about different materials. 
3.Process： 
Step1 Free talk:

How to classify the rubbish before sending it into a dustbin? 
What can be recycled?

Choose materials can be recycled from ten materials showed.

Step2 Word-teaching： 
Show the materials that can be recycled, and teach Ss to read the words and understand the meanings.

‚Play a game to review the new words.

Teacher shows 20 pictures of different materials and point one of them every time. Ss tell the English name of the material.

Step3 Further learning

   Present a passage about recycling the waste.

Step4 Discussion

   What else can we do to protect the environment?

Step5 Further reading

   Read another passage about other ways to protect the environment.

Step6 Plan-making

   Ss make a plan to show each other how they will protect the environment in daily life.