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методичка по энергетике.doc
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1. Translate the following sentences paying attention to the Infinitive:

1. We shall translate this article. 2. Do you know this man? 3. They can translate this text without a dictionary. 4. To translate this article is not an easy thing to do. 5. We want to translate this article. 6. I remember to have seen this man last year. 7. To study much is to learn much. 8. To master a language one must work much. 9. The professor to deliver a lecture at our Institute lives in our street. 10. The experiment to be carried on is described in this article. 11. Can this work have been done in such a short time? 12. He must be reading a newspaper in the reading-room. 13. He was glad to have been traveling in Europe.

2. Translate the following sentences paying special attention to the words in bold type:

1. The students carried out an experiment looking at the thermometer from time to time. 2. The cinema was invented before my time. 3. It is high time to begin work. 4. Four times three is twelve. 5. “Am I late?” “No, you are just in time”. 6. “What is the time?” “It’s dinner time”. 7. The students went to the club and had a good time there. 8. It took a long time before people learnt to split the atoms. 9. I shall be back in no time. 10. For a long time people did not know that lightning and atmospheric electricity are one and the same thing. 11. Lomonosov lectured at the University and at the same time worked in different fields of science. 12. I work in the laboratory two times a week.

3. Translate the following sentences paying special attention to the Infinitive:

1. This is the device to be used in our experiment. 2. The thermometer is a device to measure the temperature. 3. Where are the articles to be translated by the students? 4. The letter to be answered was given to me. 5. The motor is a device to change mechanical energy into electric energy. 6. Russia was the first to use atomic energy for peaceful purposes. 7. Petroff was the first scientist to study the electrification of metals by rubbing them. 8. I was the last to answer the teacher’s questions.

4. Fill in the blanks with the words one or for:

1. Moscow is … of the largest cities in the world. 2. … must remember that it is necessary to study English at least an hour a day. 3. As … rubber it was brought to Europe as early as the 15th century. 4. … understands the importance of electricity when … sees trams, trolley-buses and trains driven by it. 5. The energy of the atom is used … peaceful purposes in our country. 6. … must know the chemical properties of the atom. 7. We produce rubber … it is quite necessary … the development of our industry. 8. In 1819 Volta returned to Como … he wanted to spend the rest of his life there. 9. There is a more important problem than that … . 10. I haven’t got a dictionary, I must have … .

5. Write out from the text all the sentences where the Infinitive is used, and define its function.

6. Make up sentences according to the model using the verbs given below:

Model: We could not help speaking about the

achievements of Russian physicists.

to answer, to repeat, to mention, to observe, to change, to think, to remember.

7. Give antonyms for the following words:

North Pole, dark, on the one hand, small, arrangement, larger, magnetized, unfamiliar, like, positive, similar, to rest, in motion.

8. Answer the following questions:

1. What types of electricity do you know? 2. What is the difference between electricity at rest and electricity in motion? 3. What kind of experiments did Galvani carry on? 4. What did Franklin prove? 5. What are the two kinds of electrical charges? 6. Who was the first to produce a steady, continuous current? 7. What was Volta? 8. What can you say about the behaviour of static charges? 9. What did Volta take interest in? 10. What did Volta’s discovery result in? 11. What did the Volta device consist of? 12. Where did he spend the rest of his life?