Teaching plan for unit 4Teaching aims and demands:1. Topic: Basic knowledge of earthquakes; how to protect oneself and help the others in disasters 2. Useful words and expressions: earthquake, quake, right away, well (n.) , million , event , pipe, burst, as if, at an end , nation , canal, steam, dirt, ruin, in ruins , suffering, extreme, injure, destroy, brick, dam, track, useless, steel, shock, rescue, trap, electricity, disaster, dig out, bury, mine, miner, shelter, a (grea
