ВАРИАНТ 1 I. Перепишите следующие предложения, подчеркните в каждом из них глагол-сказуемое и определите его видо-временную форму и залог…

ВАРИАНТ 1

I. Перепишите следующие предложения, подчеркните в каждом из них глагол-сказуемое и определите его видо-временную форму и залог. Переведите предложения на русский язык.

1. Much work had been done for improving soil fertility on this farm.

2. Modern agriculture is developing in close contact with science and new technologies.

3. Our industry will increase the output of faster and more powerful tractors.

4. The driver usually increases speed gradually.

5. Some cities are so noisy and polluted that in many places vehicles have been banned in the city centre.

6. I was watching TV from 7 to 9 p. m. yesterday.

7. Ann had done her homework before her parents came.

II. В следующих предложениях подчеркните Participle I и Participle II установите функции каждого из них, т.е. укажите, является ли оно определением, обстоятельством или частью глагола-сказуемого. Переведите предложения на русский язык.

1. A letter sent from St. Petersburg today will be in Moscow tomorrow.

2. When sending the telegram, she forgot to write her name.

3. A fish taken out of the water cannot live.

4. They will be working at that time tomorrow.

5. He had translated the text before I came.

III. Работа с текстом:

a) переведите текст письменно на русский язык;

b) составьте глоссарий (13-15 слов или словосочетаний терминологического характера с их значениями);

с) письменно ответьте на вопросы.

POLARITY

All matter is basically composed of two types of electricity: positive particles and negative particles. The negative particles are relatively light in weight and in constant motion. These orbiting particles exhibit equal and opposite electrical characteristics to the heavier particles within the nucleus. When an atom has the same number of electrons as it has protons, it exalts no outward electrical properties. This is because the positive and negative charges are exactly balanced. Such an atom is electrically stable and is said to be neutral.

When an atom takes on an excess of electrons, it exhibits outward characteristics similar to the electron. It takes an overall negative property. This condition is called a negative change, and such changed atom is not electrically stable. A charged atom is called an ion, and if the charge is negative, it is called a negative ion.

An atom which has less than its normal quota of electrons, displays a positive polarity similar to that of the proton due to the fact that it has more positive protons than it has negative electrons. This type of atom is said to assume a positive electrical charge. Such an atom is known as a positive ion while it is in this electrically unstable condition. These charges of atoms are the simplest examples of static electricity. We stated that atoms are influenced to accept or give up electrons.

As the name dynamic electricity indicates, this is electricity in motion.The heart of the matter is electron movement. In electrical system, electrical pressure is needed. To maintain this pressure, a device that will move electrons in a way similar to that in which the pump moves water is necessary. The most familiar is the storage battery.

Answer the questions.

1.What two types of electricity do you know?

2. Are positive and negative charges balanced?

3.  What happens when an atom takes on an excess of electrons?

4. When does an atom display a positive polarity?

5. What is dinamic electricity?

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