- •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
Exercises
1. Translate the following sentences and define the functions of the infinitive:
I. The current is known to flow when the circuit is complete. 2. To stop the flow of current is to break the circuit in some point. 3. Copper and silver are considered to be the best conductors of electricity. 4. Various switches are generally used to open or to close the circuits. 5. Ampere supposed the current to flow from the positive pole of the source to the negative pole. 6. It is quite possible to generate a. c. And then transform it into d. с 7. Yablochkov was the first to apply a. c. in practice. 8. A battery is the simplest device to produce direct current. 9. We know the circuit to be a path of an electric current. 10. We may expect a short circuit to result in wire fault and cable fault.
2. Answer the following questions:
1. What do we deal with in this article? 2. What is an electric circuit? 3. What kinds of circuits do you know? 4. When is the "short" produced? 5. What feature of the conductor is illustrated in Figure 8? 6. What does conductance depend on? 7. What do we mean by the term "short circuit?" 8. What does the term "closed circuit" mean? 9. Who determined the difference between the electric current and the static charges? 10. Why does the current flow when the circuit is closed?
3. Define the meaning of the following words:
circuit, electron, conductor, insulator, switch, current, conductance
4. Compare:
Conductors and insulators.
Closed circuits and open circuits.
Series circuits and parallel circuits.
5. Work in pairs. Put your questions and let youe fellow-students answer them.
if heat is a form of power.
if all substances are made up of molecules.
if the molecules are travelling in various directions in a substance,
if the circuit is a complete path which carries the current from the source and back to the source.
if all metals conduct electricity with ease.
if we close the circuit when we switch off the electric light.
if we open the circuit when we switch on the electric light.
if conductance depends on the temperature of the wire.
6. Translate the following sentences paying special attention to the words in bold type:
1. The faster the molecules of a substance move, the higher is the temperature of the substance. 2.The larger the water-pipe, the more water passes through it. 3. The more you »read, the more you learn. 4. The shorter the wire, the less is its resistance to current flow. 5. The greater the number of free electrons in a substance, the better that substance conducts electricity.
7. Fill in the blanks with the following words and expressions: as, as well, as well as
1. It is necessary to remember the term "circuit" ... it is almost impossible to work with electricity without working with circuits. 2. Copper wires are mostly used ... conductors of electricity. 3. A "short" may cause wire fault ... cable fault. 4. In addition to travelling through solids, the electric current can flow through liquids and gases ... 5. ... a cold object and a hot one are brought into contact, the former gets warmer and the latter gets colder. 6. ... a conductor becomes warmer, it is unable to pass electric charges as freely as it did before its temperature began to rise. 7. The magnitude of the current ... the voltage and resistance may vary from a minute amount to a very large quantity.