Тема 3. Многофункциональные слова This–These, That--Those

Examples:

1. After studying the properties of solids we shall deal with those of liquids (those = the properties). – После изучения свойств твердых тел нам предстоит изучение свойств жидкостей.

2. Computers are sometimes called thinking machines or robots that can think. − Компьютеры иногда называют думающими машинами или роботами, которые могут думать.

3. It is the valence electrons that contribute to electrical and chemical properties of element. − Именно валентные электроны определяют электрические и химические свойства элемента.

4. That the transistors find a wide application in portable receivers is a very well known fact. (That = то, что)

Task. Translate the following sentences into Russian

A.

1. The price of tin is higher than that of copper.

2. At our factory there are a few machines similar to those described in this magazine.

3. The machines that convert electrical energy into mechanical is the electric motor.

4. Dynamic loads are those which vary in time.

5. That the acceleration of a falling body is constant was shown by Galileo.

6. It was from radio that the subject of electronics was born.

7. This turbine is more powerful than that operating in our plant.

8. The charge of the electron is negative while that of the proton is positive.

9. We know that the wire and the electric cell form an electric circuit.

10. All bodies consist of molecules and these of atoms.

B.

1. The work of a university or college graduate is 300 per cent more efficient than that of a specialist with secondary education.

2. One of the high tech examples is high definition TV. This provides the improved quality images.

3. Floating atomic power plants become a new word in electrical engineering in Russia. These may be bought by many other countries.

4. A digital computer is a device that can perform arithmetic operations and make simple logical decisions, according to the given instructions.

5. It should be mentioned that there are many scientific problems that could not be solved by the methods used in higher mathematics.

6. That the transistors find a wide application in portable and automobile receivers, electronic computers, some kinds of fuses and the like is a very well known fact.

7. The transistor is like a crystal diode, except that the emitter and the collector, separated by a few thousands of an inch touch the surface of the crystal.

8. The motion must be such that current carrying conductor should cut the lines of force.

9. A current-carrying coil of wire called a solenoid and that name was given by Ampere who studied the magnetic property of the current flowing along a coiled conductor.

10. Everyday experience shows that heavy objects are more stable than light ones, and in addition, the larger the base of the object, the more stable it is.

11. That is why, to increase the stability of a motorcar, its designer tries to keep the centre of gravity as low as possible.

12. If there were no forces acting on a body, that body would be in equilibrium.

13. Thus, the second condition for equilibrium is that the tendency to rotate should be zero.

14. That all matter is composed of both negative and positive particles of electricity is understood from electron theory.

15. In mechanical engineering a force has magnitude, direction and place of application. These are three characteristics of a force.