Упр. 14. Обратите внимание на конструкцию, "be + инфинитив" как части составного сказуемого, переведите предложения.
- It is necessary to introduce electronic track circuits on this section of the line. 2. It is difficult to design a computer. 3. It’s easy for you to say, but not easy for him to do! 4. Is it more difficult for an adult to learn a foreign language than for a child? 5. It was possible to provide reliable and practicable driverless trains on the Victoria Line. 6. It's true that there have been some very serious train accidents recently, but it's generally quite a safe way to travel. 7. It is important to control the rail profile in order to minimize the risk of derailment. 8. It's important for the meeting to start on time.
Упр. 15. Продолжите предложения, обращая внимание на конструкцию, "be + инфинитив"
- It is very important … 2. Is it a good idea …? 3. It is usually wrong … 4. It's impossible (for me) … 5. It is better … than … 6. It is more economical … 7. Is it possible ….? 8. It was necessary … 9. It sounds like a lot of fun … .
Упр. 16. Переведите предложения на русский язык, обращая внимание на перевод инфинитива.
- To finish the journey in time the driver had to increase the train speed. 2. Each problem to be solved requires its own set of instructions. 3. To solve complex problems it is necessary to have the program. 4. We can use computers to find information in Internet.
- To increase the processor speed an accelerator card is used. 6. To perform calculations is the main task of any computer. 7. The whole underground railway will have a new signaling system to be operated at 2 minute headways. 8. It was decided to finish the car interior with plastic. 9. The first shovels were introduced to make human labour easier. 10. To know the history of road-building machines we should read many books on this subject. 11. To discharge the material into a barge the machine was to stand on
the pontoons. 12. The excavator appeared to have been supplied only with three buckets. 13. To remove earth is a hard work. 14. There are several machines to be repaired.