вар 3 Air pollution

ВАРИАНТ 3
I. Перепишите следующие предложения; подчеркните Participle I и Participle II и установите функции каждого из них, т.е. укажите, является ли оно определением, обстоя¬тельством или частью глагола-сказуемого. Переведите пре¬дложения на русский язык
1.     These reactions convert hydrogen into helium, giving off a great amount of light and heat.
2.     The formula E=mc2 deduced by Einstein is perhaps the most well-known equation in the world.
3.     Soils containing too much sand or clay are of less value in agriculture.
4.     Plastics articles are often difficult to repair if broken.
II. Переведите предложения на русский язык, обращая внимание на разные значе¬ния слова ONE
1. One must apply the material that can be machined easily.
2. The problem that has become the most important one is the problem of pollution.
3. This apparatus is more powerful than the one installed in the laboratory.
III. Переведите следующие предложения на русский язык    
    1. If we compare the maps of Moscow and London we can see a similarity between them.
2. A number of electrons the atom loses or receives is called its valence.
    3. The first railroad in Russia was the railroad which connected Moscow with St. Petersburg.    
    4. The information science gets about other galaxies comes through radiotelescopes.
IV. Translate the sentences
1. Their aim is finding new ways of utilizing this polymer.
2. By cooling we can turn substances into solids or liquids.
3. Nowadays computers capable of performing billions of operations a second are required.
4.  Introducing new methods into practice requires much time.

V. Переведите предложения на русский язык, обращая внимание на разные значе¬ния слова THAT
1. That the Earth is round was unknown for a long time.  
2. The problems of water supply in this city are as important as those of lighting.
3. The simplest materials are those which have only one kind of atoms.  
VI. Перепишите следующие предложения и переведите их на русский язык, обращая внимание на функцию инфи¬нитива в предложении
1. They promised to supply us with the necessary equipment.
2. The purpose of this book is to describe certain properties of metals.    
3. To convert chemical energy into electrical energy we must use an electrical cell.
4. The experiment to be carried out is of great importance for our research.
VII. Переведите предложения, обращая внимание на различные значения AS
1. As the train was approaching the station we went to the platform.    
2. The teacher as well as her students is going to the theatre.  
3. As mercury is commonly used in barometres, air pressure is often recorded in centimetres of mercury.    
VIII. Прочитайте и письменно переве¬дите на русский язык 1, 3-й  и 4-й  абзацы текста
1. Air pollution is one of the greatest risks to human health and the environments. It turns clear, odorless air into hazy smelly air that harms health, kills plants, and damages property. While often invisible, pollutants in the air create smog and acid rain, cause cancer or other serious health problems, diminish the protective ozone layer in the upper atmosphere, and contribute to the potential for world climate change.