Вариант № 6

Задание № 1. Передайте следующие предложения в Passive Voice.

1. I saw UFO yesterday.

2. Mike has just read a very interesting book.

3. Angela often writes letters to her boyfriend.

4. They had pulled down the house before the revolution began.

5. He will pass his exam successfully.

6. I must do this work in time.

7. She will send a mail soon.

8. We are giving a party now.

9. I brought the documents last week.

10. He always invites a lot of friends to his birthday party.

Задание № 2. Переведите предложения на английский язык, используя модальный глагол can и его эквивалент to be able to.

1. Вы смогли вчера вечером пойти в театр?

2. Он смог прийти к нам на прошлой неделе.

3. Мне очень хорошо было видно эту улицу.

4. Она не смогла написать вам письмо.

5. Мы не смогли обсудить этот вопрос в понедельник.

6. Я смогу начать работу завтра утром.

7. Он сможет добраться туда только к вечеру.

8. Вы сможете перевести завтра эти статьи?

9. Он сможет в пять часов встретить этих инженеров?

10. Она не сможет закончить эту работу завтра.

Задание № 3. Закончите разделительные вопросы и перепишите их.

1. Cement is made of limestone and clay, …?

2. The characteristics of concrete depend upon the quality of the materials used, …?

3. Ann doesn’t seem very happy at the moment, …?

4. I was having dinner with some friends, …?

5. Tom will probably arrive at about 8 o’clock, …?

Задание № 4. Перепишите и переведите текст

Silicate Industry

The industry processing the natural compounds of silicon is called the silicate industry. It embraces the production of cement, glass, and ceramics.

The production of ceramic goods is based on the property of clay when mixed with water to form a putty from which various articles can easily be moulded. When these articles are dried and then baked, that is, ignited at a high temperature, they become hard and retain their shape, no longer being softened by water.

In this way clay mixed with water and sand is moulded into bricks, which are then dried and baked, the materials used to make silicate bricks are white sand and slaked lime.

Cement Production.

Cement is made from limestone and clay, or from their natural mixture, marls. The material rousted in cylindrical rotary kilns are charged into a slowly rotating kiln at its upper end and travel, mixing continuously, towards the lower end, white a current of hot gases, the products of the burning of fuel, flows in the opposite direction. During the period of their movement through the kiln the clay and the limestone react chemically, and the material emerging from the kiln in lumps of a caked mass is cement, which is then ground.

When cement is mixed with water, it forms mortar, which hardens, binding various objects, such as bricks of stones, very firmly. It is for this reason that cement is used widely as a binding material in large-scale construction, including under water construction.

Cement is often mixed with sand or gravel, in which case we set concrete.

Concrete has roughly the same coefficient of thermal expansion as iron.

Glass production.

The initial materials for the production of ordinary glass are mainly soda Na₂СО₃ limestone Ca СО₃, and sand SiО₂. A mixture of these substances is heated in a bath-shaped furnace.

When in cools, the liquid mass of glass does not become hard at once. At first it becomes viscous and readily assumes any shape. This property of glass is used in making various artistes out of it. Definite portions of the cooling semi liquid mass are taken from the bath, and these are blown or pressed to make various glassware. By machine me thuds glass sheets, tubes, its, can be drawn continuously from the molten mass.

Задание № 5. Перепишите вопросы к тексту и письменно ответьте на них.

1. What is the name of silicon?

2. What materials are used for making silicate bricks?

3. What are the initial materials for getting glass?

4. How do we get concrete?

5. What is the difference between cement and concrete?

Задание № 6. Перепишите и переведите следующие словарные выражения на русский язык:

Natural compounds of silicon; production of cement; coefficient of thermal expansion; bath shaped furnace; property of glass; to retain the shape; binding material.