Focus on Grammar

nearly every species of tree is damaged by pollution: their leaves are thinning, theirgrowth is stopped.Energy resources are the greatest problem of this century because on the one handpetrol and gas are damaging to the environment and on the other hand oil and gasreserves (fossil fuel) are not not so great to keep people supplied with them for long.Scientists are in search of new kinds of energy that will be used in the future. Theypredict the use of– solar energy (energy from the sun);– energy from the wind:– energy from water;– energy from the earth;– energy from litter.Your turnWhat can you tell about them?Answer the questions.1. Which of these kinds of energy are used in our country now?2. What other kinds of energy are used?3. Are nuclear power stations the only way out for Armenia?4. Which kind of energy do you think is the best for your country?worst? most practical? least practical?Waste not, want notEnergy and resources are ecological problems. Europeans and North Americans areall big energy users and most of them are big energy wasters too. For Armenia energy isone of the greatest problems and it is especially important to learn to conserve energy.One form of energy use important for teenagers is using electricity.Read the following dialogues and see whether you do the same.Act the dialogues out. Make up your own dialogue.– You always leave the light on in the kitchen.– Who cares?– I care, and you should, too. You’re wasting energy.– Do you know that you have the radio, the TV and your hair-dryer on at the sametime?– Do I? I didn’t notice.– You’ll notice some day when there’s no more energy.– Would you drive me to school, Dad?– I think you can walk, Jerry. It’s only two blocks from here.– But look what miserable weather it is today.– Put on your warm clothes then.91