a. Переведите предложения на русский язык.

1. When it is cold you wear a warm coat, don’t you?

2. When it rains we stay at home.

3. It is not pleasant for us to go for walk, when it rains.

4. When radiators aren’t hot in winter it gets cold.

5. We find it possible to finish this experiment before 5 pm.

6. It is important to learn English well.

7. It is not difficult to take the width of this device.

8. It is easy to do this work.

9. It is dangerous crossing the street with red lights on.

10. It is surprising that he did not take your advice.

b. Переведите предложения на русский язык.

1. It was found that proton and neutron have almost the same weight.

2. It was necessary to lay cables across the Atlantic Ocean as there was no radio or satellites at that time.

3. It is difficult to imagine the world we live in without radio, telephone and television.

4. It is possible to have a direct telephone talk with Vladivostok with the help of satellite systems.

5. This material has proper ties which make it useful for various space projects.

6. It should be said that computers become increasingly important in our life and work.

7. My adviser considers it necessary for me to read as much literature as possible before starting my work.

8. It is difficult to name all the branches of science and technology which are based on electronics.

9. It is well-known that "watt" is a unit named after James Watt, an inventor from Scotland.

10. It is impossible to solve many modern complex engineering problems without the help of computers.

с. Поставьте  “there is/are” or “it”. Переведите предложения на русский язык.

1. __________ was a loud cry and then __________ was all quiet.

2. We saw a house __________ was a solid new building.

3. __________ is late today. We shall start the work tomorrow.

4. __________ are a few people in the room.

5. __________ is true that she said nothing about it.

6. __________ is strange he did not come at all.

7. __________ is hard to climb this mountain.

8. __________ is a tall house at the far end of the street.

9. __________ is great pleasure in getting up early on a fine summer morning.

10. _________ is a lot of talk about the changing climate.

11. _________ is more man enough for me.

12. _________ is something I can well understand.

13. Why rush there now, __________ is much too early.

14. _________ is not enough time for walking, let’s jump into a taxi.

15. _________ is a secret that everybody knows.