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The passive voice

Indefinite

Continuous

Perfect

Present

am (is, are) written

Programs are written.

Программы пишут (вообще, часто).

am (is, are) being

written

Programs are being

written.

Программы пишут

(сейчас).

have (has) been written

Programs have been written.

Программы написаны (уже, только что, за последнее время).

Past

was (were) written

Programs were written.

Программы были написаны (вчера, на прошлой неделе).

was (were) being

written

Programs were

being written.

Программы писали (в определенный момент или период прошлого).

had been written

Programs had been written.

Программы написали (к определенному моменту прошлого).

Future

shall (will) be written

Programs will be written.

Программы будут написаны (завтра, на будущей неделе и т.п.)

_____

shall (will) have been written

Programs will have been written.

Программы будут написаны (к определенному моменту в будущем.

1. Study the general models of the Passive constructions. Say what tenses are used and translate into Russian:

1. He is often asked to give chemical characteristics to artificial building materials. 2. They were explained how to keep cement materials. 3. My friend was being asked many questions about binding materials when I entered the room. 4. Polotsk University was founded in 1968. 5. The clay and lime will be brought next week. 6. This experiment has just been completed. 7. Many flats and enterprises had been built in our town by the end of the year. 8. This building method is being used now. 9. This timber will have been dried by the end of May. 10. Different problems of building construction will be spoken about at the next lecture.

III. Reading Comprehension.

1. Read the text, find all sentences with Passive Voice and translate them. Building materials

All building materials are divided into three groups:

1) Main building materials such as stones, artificial stones, timber and metals.

2) Binding materials such as lime, gypsum and cement.

3) Secondary materials.

We use main building materials for bearing structures. Binding materials are used for making artificial stones and for joining different planes. For the interior finish of a building we use secondary materials.

If the materials don’t require any changes in their chemical structure they are known as natural building materials. They are stone, clay, sand, lime and timber.

Cement, clay products and concrete are examples of artificial building materials.

Now building materials are changed into units of assembly, prefabricated or precast construction members. The new materials of construction are characterized by increased strength. Structural, insulating and surfacing requirements are combined in a single system. As a result a greater speed in housing construction has been achieved.

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