20. Correct the following statements.

1) Research has shown that some respiratory symptoms and illnesses can be linked with dry buildings.

2) The information available from medical tests and tests of the environment is enough to establish which contaminants are responsible.

3) Indoor environments are incredibly common and building residents may be exposed to a variety of pollutants.

4) Such factors as indoor temperatures, relative humidity, and ventilation levels can’t affect people.

5) Understanding the relation of indoor environmental contaminants and controlling them can help prevent building-related worker symptoms.

6) The indoor environment in industrial building is a result of the interaction between the site, climate, building systems, construction techniques and contaminant sources.

7) Determination of the consequences of the problem we call "root cause analysis."

21. Analyze the Figure 1.

1. Read and translate the definition of Indoor Environment & Air Quality.

2. What is in the center of the figure? Why?

3. What causes Indoor Air Pollution?

4. What are the sources of Pollutant Emission Pathways?

5. Are the choice of HVAC and Indoor Air Pollution interrelated?

6. What other factors influence HVAC choice?

7. What does HVAC system influence on?

8. What are the three main factors that influence on IEAQ?

9. What does IEAQ affect in its turn?

10. Why is it important to consider IEAQ?

22. Choose the best abstract for the text.

1) The text gives definition to "Indoor Environmental Quality," analyzes its reasons, explains, how to improve it.

2) The text determinates fundamental cause of indoor environmental pollution and explains how to measure it.

3) The text determinates fundamental cause of indoor environmental pollution, its main consequences, importance of indoor environmental quality improvement.

23. Write a summary of Text 2.

LANGUAGE FOCUS

24. Combine the words from the column on the left with the suitable nouns from the column on the right. Translate them into Russian.

1) health	a) characteristics
2) respiratory	b) cause
3) indoor	c) information
4) ventilation	d) conditions
5) cleaning	e) materials
6) building	f) symptoms
7) microbial	g) contaminants
8) relative	h) products
9) fundamental	i) growth
10) available	j) humidity

25. Choose the contextual meanings of the words written in bold in Text 2.

1) instance

a) пример	c) образец
b) случай	d) просьба

2) to interpret

a) объяснять	c) представлять
b) толковать	d) интерпретировать

3) complex

a) сложный	c) смешанный
b) запутанный	d) составной

4) activity

a) действие	c) работа
b) деятельность	d) активность

5) individual

a) индивидуум	c) особа
b) личность	d) человек

6) failure

a) небрежность	c) неудача
b) провал	d) неисправность

26. Match the synonyms.

1) issue	6) root	a) cooperation	f) breath
2) occupant	7) fundamental	b) basis	g) pollutant
3) origin	8) interaction	c) disease	h) source
4) respiration	9) contaminant	d) adequate	i) initial
5) sufficient	10) illness	e) problem	j) resident