Unit 6 Стор. 69 - 83: 14

14. Read and develop the following idea. Write your opinion according to the paragraph plan below.

A. Introduction:

The recent researches show that indoor air may be more polluted than the air outside.

B. Your opinion and reasons:

There are various sources of pollution inside a building, which have a negative effect on air quality. From cooking residue to paints, chemicals and fungal spores, the air we breathe indoors is often more polluted than that outside.

C. Conclusion (summary of your opinion)

Of course, there are many ways we can tackle the problem. But even if you let in the air from the outside, you cannot be sure. That it’s fresh and cleaner from.