Task 3. fill in the gaps with a subject from the box.a) a one kilowatt solar panelb) global energy consumptionc) solar panels, solar water heaters and wind generatorsd) these renewable energy systemse) this risef) a solar roofg)many countriesh) the governmenti) they1….is predicted to rise nearly sixty per cent in the next twenty years.2. ….is due to factors such as population growth, urbanization, and economic and industrial expansion.3. … have set themselves renewable energy targets, hoping to be able to generate a proportion of the electricity by such renewable means as wind or solar power. on a cloudy day in britain 4…can generate enough electricity for the household to pay 140 hours of tv and make 35 cups of tea.5…saves up to a ton of co2 emissions each years.6….all help to provide alternative sources of energy for private homes and 7 …are no longer prohibitively expensive.8….can make savings for householders in the long run, and in britain 9….is providing financial help with the cost of installing them.

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