- •Exercises
- •1. Learn the following active words and use them in the sentences of your own
- •3. Look through the text and write out the English equivalents of the following words and word combinations. Use them in the sentences of your own.
- •7. Give short answers to the following questions:
- •9. Translate the following sentences:
- •Exercises
- •1. Learn the following active words and use them in the sentences of your own.
- •2. Translate the following chains of words. Define what parts of speech they are
- •3. Look through the text and find the English equivalents to the following words and word combinations; use tem in the sentences of your own.
- •5. Translate the following sentences paying attention to the participle:
- •10. Translate the following sentences:
- •11. State the power change that takes place in each of the following devices.
- •12. Retell the text.
- •Exercises
- •1. Learn the following active words and expressions. Use them in the sentences of your own.
- •4. Answer the following questions:
- •5. Work in pairs. Put questions to your partner and he (she) will answer them.
- •8. Translate the following sentences paying attention to the words need and turn:
- •9. Put all possible questions to the following sentences:
- •10. Define the following words according to the model given below.
- •Exercises
- •Learn the following active words and use them in the sentences of your own:
- •2. Translate the following sentences, paying attention to the gerund:
- •7. Translate the following sentences paying attention to the words in bold type:
- •8. Put 5 questions to the text beginning with what.
- •9. Speak on the story told by the early Scandinavians.
- •Exercises
- •1. Learn the following active words and use them in the sentences of your own.
- •2. Look through the text and find the English equivalents of the following words and word combinations, use them in the sentences of your own:
- •5. Find the gerund in the text, define its function.
- •7. Put questions to the words in bold type.
- •8. Translate the following sentences paying attention to both, both...And:
- •9. Fill in the blanks with prepositions:
- •10. Translate into Russian:
- •11. Form five sentences combining suitable parts of the sentence given in Columns I and II:
- •12. Describe Franklin's kite experiment.
- •13. Give a short summary of the text.
- •Exercises
- •1. Learn the following active words and Expressions
- •3. Look through the text and find the English equivalents of the following words and word combinations, use them in the sentences of your own:
- •7. Make up a story of Franklin's kite experiment using the following sentences and sentences of your own (our sentences are given in a disorderly way):
- •10. Use the following expressions in sentences of your own:
- •11. Speak on magnetism.
- •Exercises
- •8. For the names of the countries given in Column I find the names of the nations given in Column II:
- •10. Speak on:
- •11. Make an outline of the text.
- •12. Retell the text.
- •Exercises
- •1. Learn the following active words and use them in the sentences of your own:
- •2. Define the functions of the participle and the gerund in the text.
- •4. Answer the following questions:
- •5. Fill in the blanks with suitable words and word combinations given below:
- •6. For the verbs in (a) find suitable nouns in (b).
- •7. For the nouns in (a) find suitable attributes in (b):
- •8. (A) Translate the following word combinations:
- •11. The following statements are not true to the fact. Correct them:
- •12. Retell the text.
- •Exercises
- •1. Learn the following active words and use them in the sentences of your own:
- •2. Translate the following word chains into Russian, define what part of speech the words are.
- •4 Translate into Russian:
- •8. Form 10 sentences using the following words:
- •10. Translate the following sentences paying special attention to the words in bold type:
- •11. Retell the text.
- •12. (A) Fill in the blanks with prepositions, if necessary; (b) retell the text:
- •Exercises
- •1. Learn the following active words and use them in the sentences of your own:
- •2. Look through the text and find the English equivalents to the following words and word combinations. Use them in your own situations.
- •3. Write out antonyms to the following words:
- •4. Translate the following sentences paying attention to the infinitive
- •5. Translate the following sentences paying special attention to the words in bold type:
- •6. Translate the following sentences paying special attention to the infinitive:
- •7. Fill in the blanks with the words one or for:
- •8. Write out from the text all the sentences where the infinitive is used, and define its function.
- •Exercises
- •1. Learn the following active words and use them in the sentences of your own:
- •3. According to the models given below form sentences combining suitable parts of the sentence given in Columns I, II, III, IV,
- •5. Work in pairs, ask your fellow-students the following questions:
- •6. Form six sentences combining suitable parts of the sentence given in Columns I and II:
- •7. Explain why:
- •8. Define the meaning of the following words:
- •Exercises
- •1. Learn the following active words and use them in the sentences of your own:
- •2. Translate the following sentences using the infinitive constructions:
- •Find in (b) synonyms to the words in (a):
- •5. Translate the following questions into English and answer them:
- •7. Translate the following sentences paying special attention to the words in bold type:
- •8. What are the different meanings of the following words?
- •10. Speak on the work of the following scientists using the words given below:
- •Exercises
- •2. Answer the following questions:
- •4. Compare:
- •6. Translate the following sentences paying special attention to the words in bold type:
- •8. Fill in the blanks with suitable prepositions if necessary and make up sentences with the following infinitives:
- •9. Translate the following sentences:
- •10. Speak on:
- •Exercises
- •1.Learn the following active words:
- •Conditional Sentences
- •2. Translate the following sentences:
- •3. Translate the following sentences paying special attention to the word provided:
- •5. Complete the following sentences:
- •6. Fill in the blanks with among or between:
- •8. Put all possible questions to the following sentences:
- •10. Form new words of the same root, define what parts of speech they are:
- •11. Speak on:
- •Exercises
- •1.Learn the following active words:
- •2. Look through the text and find the examples illustrating modality.
- •3. Answer the following questions:
- •4. Translate the following phrases into English using the word combinations given below:
- •5. Define the meaning of the prefixes in the following words and translate them into Russian:
- •6. Translate the following sentences:
- •7. Work in pairs. Put questions to your fellow-student and let him answer them:
- •8. Translate the following sentences paying special attention to the words in bold type:
- •10. Complete the following sentences:
- •11. Speak on the heating effect of an electric current.
- •12. Translate the following text.
- •Exercises
- •1. Learn the following active words:
- •2. Translate the following sentences into Russian:
- •4. Fill in the blanks with where, which, when, who, that:
- •5. Translate the following sentences paying special attention to the words in bold type:
- •6. Fill in the blanks with either should or would:
- •Exercises
- •12. Look at Fig. 11, name a, b, c, d, e and describe the figure.
- •Exercises
- •1. Learn the following active words:
- •2. Translate the following sentences paying special attention to the impersonal construction:
- •3. Answer the following questions:
- •4. Complete the following sentences:
- •5. Define the meaning of the following words:
- •6. Choose the right term and explain the statement:
- •7. Translate the following text:
- •8. Look at Fig. 12 and speak on power generation in Russia.
- •9. Retell the text.
- •Exercises
- •1. Learn the following active words:
- •Exercises
- •1. Learn the following active words:
- •2. Translate the following sentences:
- •3. Define the function of the words in bold type:
- •4. Translate the following sentences:
- •6. Define the function of the words one and bat:
- •7. Form sentences using the following word combinations.
- •8. Fill in the blanks with the following expressions:
- •9. Complete the following sentences:
- •11. Speak on:
- •12. Translate the following text:
- •Exercises
- •1.Learn the following active words:
- •2. Translate the following sentences paying attention to the participle:
- •3. Answer the following questions:
- •5. Make up six sentences using the following nouns qualified by adjectives.
- •6. Translate the following text without consulting a dictionary and retell the text.
- •If There Were No Electricity
- •7. Describe the following:
- •9. Form statements which are not true to the fact. Ask your fellow-students to correct them.
- •Exercises
- •1. Learn the following active words:
- •3. Define the function of the word do in the following sentences:
- •4. Translate the following questions and answer them:
- •Exercises
- •1 Learn the following active words and expressions and use them in the sentences of your own.
- •8. Answer the following questions:
- •10. Translate the following word combinations and use them in the sentences of your own:
- •Exercises
- •1. Learn the following active words:
- •2. (A) Give headings to each paragraph of the text.
- •3. Translate the following sentences:
- •4. Define the non-finite forms of the verb met in the text.
- •5. Put 10 questions to the text.
- •6. Translate the following sentences:
- •7. Speak on:
- •Exercises
10. Translate the following word combinations and use them in the sentences of your own:
gas turbine, iron bar, liquid state, power distribution, heat power, wind speed, power generation, heat power plant
11. Describe the construction and the operation of a wind-power plant.
LESSON TWENTY-FOUR
TIDAL POWER PLANTS
The main purpose of this article is to give some idea of one more natural source of electric power and the existing methods, ways and means of its use.
Coal, oil, wind, water and atomic power — these are familiar sources of power, but what is tidal power?
The periodic rise and fall of the ocean on a coast line is well known. In the open ocean the changes in level amount to only about 61 cm, or so. On the coasts of continents it is often much greater. At any rate, tides like wind will last for ever.
Utilization of tidal power has been studied more or less extensively in a number of countries, such as the Russian Federation, the USA, France, Canada, England, and others. The fact is that tidal forces are expected to make considerable contribution if not to present-day, at least to future electricity production. By intercepting ocean or sea water at high tide in a basin and directing it back through turbines at low tide, one could create a kind of a working hydro-electric plant.
Although there are tides along all coasts of all continents, not all places possess the necessary qualities for the installation of an efficient, reliable and economical tidal power plant. The most important features are the amplitude of the tide, the surface area of the basin, and the size of the dam required. The higher the tide, the larger the area of the available basin, and the smaller the dam required, the better the locality. Suitable places can be found, for instance, on the French coast and it is probably there that a big t. e. s. was constructed.
Russian tidal power sources are among the greatest in the world. No wonder that several large tidal power plants are planned here. Kislaya Bay on the Barents Sea was found to be the very place for the construction of the first experimental t. p. s. At high tide water from the Barents Sea will flow in through an operating turbine, while at low tide the water will be conducted back to the sea through that very turbine, making it work in both directions. Such a turbine makes it possible to use both high and low tides to the best advantage.
The Kislaya Bay station is an experimental project and Its planned capacity is not large. But that is not the principal thing. What is important is the possibility of testing the design of the station under consideration. The results obtained will enable designers to solve the main problems for several other powerful and super powerful tidal plants to go into operation in future. One cannot help mentioning in this connection the Belomorsky project of a t. e. s. which is to have a power capacity greater than that of Bratsk, the biggest hydro-electric station in the world.