Unit Ten Human Health Leading in and exploring Introduction to the Topic With industrial progress come environment problem. Humans are endangered daily to the water we drink, the food we eat, and the air we breathe. However, human breath is also seriously affected by hazards other than environment ones: tobacco, alcohol and other additions. People are becoming increasingly aware of the relationship between a healthy environment and healthy people. Leading in and exploring Pre-reading questions: What Kind of pollution or addiction have you ever experience? What ways do you suggest to reduce the risk of environmental pollution or addiction?