2015-01-21
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1.Our university has a library of many volumes of Russian and foreign scientific books and journals. 2. A great volume of gas penetrates into porous beds of sand, sandstone and limestone. 3. As is known, for volume of chemical production this plant is one of the leading ones in our country.
9. Переведите следующие предложения. Помните, что:
a few – несколько употребляется с исчисляемыми
few – мало существительными
a little – немного употребляется с неисчисляемыми
little – мало существительными
1. We have little information of this discovery. 2. We must add a little water to make this substance melt. 3. Scientists opened a few new sources of gas in Europe.
4. There are few uses of natural gas in industry. 5. A few years ago we utilized this device in our laboratory. 6. As I had little time I could not get reliable information about this deposit of gas. 7. Little of natural gas we may use chemically. 8. Butane, pentane, hexane, and a few other gases may also be present.
Переведите следующие предложения на русский язык.
Запомните: both – оба
both…and – как … так и
either – любой
either…or – либо … либо
1. Natural gas either occurs together with crude oil or forms separate deposits of gas alone. 2. Either of these properties can be used in this analysis. 3. Natural gas may be used either as fuel or heat in our everyday life. 4. Most of natural gas we may use as a fuel for the production of both heat and energy. 5. Decomposition of both animal and vegetable remains over a period of many centuries without air is the source of natural gas. 6. Both the pressure and volume of a gas can be changed.
7. Both characteristics of the state of a gas are very important for the experiments.
8. Homogeneous materials may be classified either into compounds and elements or into solutions. 9. Natural gas either occurs together with oil or forms separate deposits of gas alone. 10. The density of gases is measured either with special gas pycnometers or by the effusion method. 11. The state of a gas is characterized both by pressure-temperature and volume. 12. A field may be either a single pool or it may consist of two or more pools, all of, or related to, the same geologic structure.
13. Both oil and gas are naturally occurring mixtures of mainly hydrogen and carbon compounds. 14. Oil may be displaced from sand by either water or gas. 15. Oil and gas are used both as the fuel and chemicals. 16. Generally oil seeps are either up-dips or seepage along a fracture.
