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Exercise 6. Study Fig. 9.1. Find out the sources of:

a) sulfur dioxide and nitrogen oxides;

b) hydrocarbons and carbon monoxide;

c) particles (particulates).

Exercise7. Answer the questions making use of the following words and word combinations. Study Fig. 9.1, Fig. 9.3:

commercial and game fish – промислова та непромислова риба

dizziness – запаморочення

livestock – домашня худоба

trash – мотлох, сміття, покидьки

tissue – м'язова тканина

treated – оброблений

algaeводорість

  1. What acids fall with rain and snow?

  2. What acids kill fish, injure plants and damage property?

  3. How is smog formed?

  4. What injures the respiratory system of humans and reduces human’s visibility?

  5. What do motor vehicles exhaust?

  6. What contains large amounts of wastes from animal and plant matter?

  7. In what sewage are nitrites and phosphates contained?

  8. What does agricultural drainage contain?

  9. What do industrial wastes damage?

Exercise 8. Study Fig. 9.2 and speak on how mercury reaches people. Use the verbs:

to combine with

to come from

to damage

to vapour

to travel

to injure

to fall (with)

to collect

to harm

GRAMMAR REVIEW

I. Subjunctive mood Exercise 9. Fill in the blanks with adverbs from the box; ask and answer the questions on the information:

Almost, together, now, however

… all cars burn gasoline which produces carbon dioxide (an important greenhouse gas), nitrogen oxides and hydrocarbons which to react … in sunlight to form ozone and other toxic products such as benzene and lead. …,catalytic converters which are … standard features on most new cars, reduce emission of nitrogen oxides and hydrocarbons by up to 90%, but they do not reduce carbon dioxide emission.

Exercise 10. Translate the sentences given after the tables:

I wish

I

had been …

he

had had …

you

had seen …

they

had known …

I wish I had seen her yesterday . (It’s a pity I didn’t see her).

I wish they had been with us last weekend. (It’s a pity they were not with us).

He wishes the accident hadn’t happened. (He is sorry about the accident that happened some hours ago).

If

I

had been …

I

should

have done …

he

had had …

he

would

you

had seen …

you

could

they

had known …

they

might

If I had seen her yesterday, I could have told her about the news.

If they had been with us last weekend, we would have pushed the car together.

The accident could have been prevented if he had driven more carefully.

He might have supplied you with the necessary information if you had asked him earlier.

Exercise 11. Match a line in a with a line in b to make statements:

A

B

If I had had more free time last week

we could have already taken the necessary steps.

If he had been more careful when driving

if the level of lead had been measured.

If we had received this information about the level of water pollution

if they had provided us with all necessary equipment.

The poisoning could have been prevented

I could have prepared the report on ecology.

We would have reduced the noise level last month

he wouldn’t have injured the passer-by.

The leakage would have already been stopped

if the pipe had been checked in time.