Ex.8 Name all ways to solving the problem of fresh water

- Explain the most effective method of the protection of water resources

- Explain how one can solve the problem of expanding of water consumption in big cities.

- What way is solved the problem of water desalination in some countries,

- Say in detail about the ways of solving the problem of fresh water in the world scale, which you have read in this text.

Ex.9 Translate the following sentences with emphatic inversion:

1. It is the program that ensures the execution of all operations assigned to the computer. 2. It is the programmist that is the connecting link between the computer and the problem it has to solve. 3. It was not until the 20^th century that electronic computers were constructed and put into operation. 4. It was 50 years ago, when the first relay machine capable of adding two 23-digit numbers in 0.3 sec was completed.

Ex.10 Change the following sentences using the inversion and translate them into Ukrainian:

Patterns: A. If I were in your place, I should do this work myself.

Were I in your place, I should do this work myself.

B. If he had known the subject better, he wouldn’t have failed in his exam.

Had he known the subject better, he wouldn’t have failed in his exam.

1. If it were necessary to increase the speed of this particular engine, it could be achieved by using a special device. 2. If the road had been better, we should have been here in due time. 3. If the engineer had been informed of the results before, he would have allowed you to repeat the test. 4. If we had used new methods, we should have saved much time. 5. The plan would not have been fulfilled in time if the people had not worked with such energy. 6. If the oil supply had stopped even for a moment, serious damage might have resulted. 7. If the mechanic were there, he would repair the equipment. 8. If the air within the cylinder were motion less, only a small proportion of the fuel would find enough oxygen. 9. If the book on that subject were available in our library, I should be able to make a gooв report. 10. If he had all the necessary materials, he would accomplish his model in time.

Ex.11 Translate the following sentences with the inversion:

1. Discussed in this chapter are some of the general characteristics inherent to semiconductors. 2. Included in this section is a description of a typical airborne liquid oxygen system. 3. Shown on the photo is the equipment available at many airports to start piston-engined aircraft. 4. Described in this book are the rockets space-probing craft including the sputniks.5. Associated witheach electron is a wave, which is propagated in the direction of the motion of the electron.

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