Переведите предложения на русский язык

1. To avoid this limitation, companies also produce DVD rewriteable devices. 2. DVD –ROM can store a large amount of multimedia software and complete full screen Hollywood movies in different languages. 3. At present researchers are looking for the most suitable chemical compounds to be used as data storages and trying to determine optimum recording conditions. 4. Lasers have been successfully employed to record information on and read it off. 5. Gigawatt lasers are not off-the-shelf items; there is no doubt they could be built if the need were strong enough. 6. Recent spectacular breakthroughs in superconductors may be compared with the physics discoveries that led to electronics and nuclear power.

Задание 3. Определите функции инфинитива и переведите предложения на русский язык.

1. To develop the supercomputer, highly developed electronics and new materials were required. 2. One of the best ways to keep the car speed steady is to use a computer. 3. Some materials with new useful properties may be produced in space. 4. A special electronic device signals the engine to stop. 5. To design, construct and operate a laser system is a great technological achievement. 6. A very interesting problem is to produce a practically limitless source of energy. 7. There are projects to use lasers for long distance communication. 8. To combine laser and thermonuclear reaction is a very interesting problem for the scientists in many countries. 9. To conduct physical experiments with laser beams, Russian physicists have developed large laser installations.

Задание 4. Вставьте вместо пропусков частицу to перед инфинитивом, где необходимо:

1. How could electricity ___ be used ___ send a message? 2. For two years Tom Watson and Alexander Bell were working together ___ build a machine that people could ___ use ___ talk to one another over long distances. 3. The camera-tube will ___ allow the user ___ switch from a wide view of the room to the face of the person speaking. 4. There is a mirror attachment, which allows the camera ___ scan documents, which may be lying on the table. 5. Satellites help ___ minimize all the difficulties that may appear. 6. One CD-ROM disk can ___ replace 300,000 pages of text – about 500 floppies, which represents a lot of savings in databases. 7. Superconductors are extremely difficult ___ fabricate into wires. 8. Superconductor ceramics are substances which can ___ transmit electric currents with no loss of energy at temperatures much higher than conventional superconductors. 9. If a current is induced by a magnetic field in a ring of superconducting material, it will ___ continue ___ circulate when the magnetic field is removed.