Text comprehention Work in pairs. Find answers to the following questions in the text. Ask and answer.

Is energy essential? Why? Give the examples of non-renewable sources of energy. Why are they called so? Why are oil, natural gas and coal called “fossil fuels”? What kinds of energy do forests and trees belong to? Why? Give the examples of renewable sources of energy. Why are they called so? Is geothermal energy renewable or non-renewable? Why does renewable energy have minimal impact on the environment? Why are renewable sources of energy not so reliable as non-renewable ones?

Vocabulary practice

1. Write out the English equivalents for the following words used in the text. Practice their pronunciation.

крайне важный	______________	ограниченные запасы	_____________
жидкость	______________	твердое вещество	_____________
органические остатки	______________	добывать	_____________
вырубка лесных насаждений	______________	постоянно	_____________
техническое обслуживание	______________	углекислый газ	_____________
загрязнение	______________	энергоустановка	_____________
надежность	______________	больше чем	_____________

2. Match antonyms (a) and synonyms (b).

a) abundant	be calm	b) replenish	finish
cost-effective	increase	available	producer
worry	insufficient	vehicle	make again
reduce	unprofitable	manufacturer	usable; at hand
unpredictable	certain; harmonious	run out	automobile
inconsistent	definite; stable	sustainable	continual

3. Fill in the gaps using the words from Ex.1 and Ex.2 in the correct form. Consult the text if necessary.

1. Non-renewable energy sources cannot be _________, or made again, in a short period of time.

2. Non-renewable energies seem ________, like oil, gas and coal, so if _____ correctly, our supplies will be safe for future generations.

3. Non-renewable energies seem widely ______ and affordable.

4. Oil and diesel are still good choices for powering _______.

5. We do not have ________ about renewable energy sources _________.

6. Renewable energy is ________ and so will never run out.

7. The disadvantage of renewable energy sources is the ________ of supply.

8. The current cost of renewable energy technology is also far ________ traditional fossil fuel generation.