Перепишите и письменно переведите на русский язык следующие предложения. Определите видо-временнную форму и залог сказуемого

1. As an economy becomes more developed, a larger variety of energy sources are tapped.

2. Petroleum has been used throughout recorded history.

3. When more useful energy is extracted from a system, less waste results.

4. The research of planets is being developed with the help of cosmic apparatus.

2. Перепишите предложения и переведите их на русский язык, обращая внимание на разные значения глаголов to be, to have, to do (см. образец выполнения 2).

1. People have taken advantage of other kinds of energy transformation, using machines and fuels to help do their work.

2. 150 years ago, you had to chop wood to heat water.

3. Most people had very little time for education or leisure activities.

4. The modern petroleum industry was born in the 1800s in the United States.

Перепишите и переведите следующие предложения, обращая внимание на неличные формы глагола (см. образец выполнения 3).

1. As an economy becomes more developed, the energy consumed per person increases.

2. Wood was used not only for heating and cooking, but also as source of charcoal for reducing ores to metals.

3. Coal was difficult to mine with primitive tools.

4. The first fossil fuels to be used were surface deposits of asphalt, peat and coal.

Перепишите и переведите следующие предложения, обращая внимание на перевод зависимого и независимого причастных оборотов (см. образец выполнения 4).

1. Light and food industries have been modernized, much being done to expand the production of consumer goods.

2. An experiment demonstrating the existence of an ultraviolet and infrared spectrum must be perfomed.

3. The economic incentive has led to energy use and fuel consumption becoming progressively cleaner over time.

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