1. Образуйте все формы Participle I и Participle II от следующих глаголов и переведите их.

To decide, to develop, to produce, to weigh, to release, to extend, to use, to give, to link, to include, to reinforce, to propose, to settle, to establish, to support, to replace.

2. Переведите следующие словосочетания, обращая внимание на перевод причастий.

1. Entering the room — having entered the room; 2. calculating the distance — having calculated the distance; 3. developing the speed — having developed the

speed – having developed the speed of 120; 4. introducing new methods — having introduced new methods; 5. deciding to leave the city — having decided to leave the city; 6. dividing into two parts — having divided into two parts — being divided into two parts; 7. obtaining the necessary information — having obtained the necessary information; 8. changing his opinion — having changed his opinion; 9.installing new equipment— having installed new equipment; 10. offering her his help — having offered her his help; 11. returning home — having returned home.

3. Дайте полные ответы.

1. When do we see the results of our work: doing it or having done it? 2. When do the students use а dictionary: translating a text or having translated it? 3. When do we turn the key: locking the door or having locked it? 4. When do we take more pleasure: listening to music or having listened to it? 5. When must you look at the traffic light: crossing the street or having crossed it?

4. Определите форму причастия и скажите, выражает ли оно действие, одновременное с действием сказуемого или предшествующее ему. Переведите предложения.

1. Building new houses for the people we improve their living conditions. 2. Having built new houses for the people, we have improved their living conditions. 3. Foretelling the existence of some unknown elements, Mendeleyev described their properties. 4. Studying the atomic weight of the elements, Mendeleyev found that they could be divided into nine groups. 5. Having locked his work in the desk, Newton decided to leave it there till after his death. 6. Being built in a nеw way modern houses are much more comfortable. 7. Having learned the nature of fire and its uses man greatly improved his living conditions. 8. Being a form of matter air has weight and occupies space. 9. Being heated the air becomes thinner in the heated area. 10. Having been made more accurate weather predictions are of great help to aviation and navigation. 11. Having been brought from America in the 15th century rubber was first used for making balls and rubbing out pencil marks. 12. Having made а great number of experiments with different substances the chemists found that most of them could be decomposed into other substances.