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VI. Transform the sentences from Active Voice into Passive Voice:

Present Perfect Passive is

have

has

been +

shown

cleaned

written

etc.

Past Perfect Passive is

had

been +

shown

cleaned

written

etc.

1) Somebody has broken the window. 2) Nobody has written a letter to Helen. 3) Somebody has stolen Nock’s keys. 4) The mechanics have already repaired my car. 5) Nobody has posted the letter yet. 6) Nobody has invited me to the Party. 7) Nobody has cleaned the room. 8) Has anybody washed the shirt ? 9) Has anybody cut down the trees ? 10) Has anybody repaired the TV-set ? 11) The room looked nice. Somebody had cleaned it. 12) The flowers looked fresh. Somebody had watered them. 13) The shirt was very clean. Somebody had washed it. 14) The delegation arrived in Kyiv. The government had invited the delegation. 15) The mechanics hadn’t repaired the car by yesterday so we couldn’t use it. 16) Nobody had finished the test-paper by the end of the lesson yesterday.

VII. Translate into English:

l) Я ніколи не бачив цього чоловіка. 2) Хто вже закінчив завдання ? 3) Ми живемо у цьому місті з 1980 року. 4) З тих пір пройшло 30 років. 5) Конференція вже закінчилась до того часу, як приїхала делегація з Іспанії. 6) Вікна вже вимили ?  Так, вони були вимиті до суботи. 7) З тих пір ми не зустрічались. 8) Ви коли-небудь бачили цей фільм ? 9) Мої батьки побрались з 20 років. 10) Ключі ще не знайдені. 11) Ключі не були знайдені до того часу як ми повернулись. 12) Хто-небудь бачив мої окуляри ? 13) Скільки разів ви були у Лондоні ?  Я ніколи не був там. 14) Будівельники завершать роботу до кінця року. 15) Йому казали про це ?  Так, йому казали про це багато разів.

Text B

Read and translate, then discuss:

The Earth’s ozone layer, found principally 20-50 kilometres up in the stratosphere, protects the Earth’s surface from some of the more damaging wavelengths of ultraviolet radiation and plays a number of important roles in regulating the planet’s temperature. It also acts as heat sink for the stratosphere. Changes in ozone concentrations and distribution therefore affect the Earth’s surface temperature; and decreases in ozone concentrations allow more ultraviolet radiation to reach the surface, with potentially damaging consequences for living organisms.

The wavelengths that are partially blocked by ozone can cause sunburn, snow blindness, eye damage, skin cancer and the ageing of skin. If ozone levels were to fall significantly, plant growth rates could be reduced, resulting in lower crop and timber yields. There might also be widespread effects on aquatic life, including edible fish, because marine algae, living at the top of the aquatic food chain, are particularly susceptible to ultraviolet radiation.

Recent observations have revealed a number of ozone losses caused by human action. Ozone levels over the Antarctic, for example, have fallen progressively over the years, and now about 50 per cent lower that they were 15 years ago.

More research and control measures are urgently required to save the Earth’s ozone layer from depletion.

algae, pl [ ]  морські водорослі

susceptible to виключно чутливий до

particularly надзвичайно

LESSON 7 climate and weather

Grammar: Model Verbs and their equivalents

PRE-TEXT EXERCISES

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