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up the sense of environmental protection 3. From the writing habit of English letters .Teaching Methods 1. East/careful reading for gist/details 2. Discussion in groups and writing practice .Teaching Aids 1. A slide projector 2. Macromedia equipment Main Procedures in Teaching Step 1 Greeting and Revision Step 2 Do Reading and Talking Step 3 Writing Step 4Assignment 1. Revise the contents of the whole unit. 2. Finish off the letters and write them in the exercise book. 3. Preview the next unit