A. 5. Translate the sentences

1. The city is famous for its architecture. 2. He is considered the best specialist in this field. 3. Unlike old cities, cities built later were planned by architects. 4. How many machines do you require? 5. The reconstruction will require a lot of money and enormous efforts. 6. We operate the equipment according to the instructions. 7. I'm in doubt how to do it. 8. Railways and ships carry goods. 9. Does the engine work smoothly? 10. They made a lot of efforts to restore this valuable building. 11. It is necessary for you to be at the conference. 12. We had to use some lorries to transport sand to the site. 13. The top of the mountain was covered with snow.

B. 1. Define to what part of speech the following words belong

1. The greater part of the research was completed. 2. They parted after they graduated from the Institute. 3. He works on the design of a new machine. 4. The ice-breaker is designed for operation in Arctic waters. 5. The children made a fine model of a rocket. 6. It was the first model made by children. 7. The amount of heat the body contains is something quite different from its temperature. 8. When we heat a substance its molecules are speeded up. 9. The professor planned all his lectures. 10. Planned work gives good results. 11. All the visitors like the exhibition of plastic materials used in construction. 12. The thermometer has not always had its present form. 13. Ultrasonic vibrations can be used for cutting holes in hard materials like glass. 14. It is clear that such transformations like the changes from one state of matter to another do not affect the composition of the material. 15. Unlike batteries direct energy converters do not need reacting chemicals.