Discussing the Reading Talk about your answers to these questions
1. Is there a problem with smog in your city? When is it the worst? What are the causes?
2. Have you ever experienced sick – building syndrome? If so, what were your symptoms?
3. How many possible pollutants can you find in your home and classroom? Make a list.
4. In your home country, do people usually have houseplants? Why or why not?
5. In your opinion, why wasn’t sick – building syndrome a problem in the past?