Unit 7

renewable, pollution, wildlife, man-made, recycle a) animals living naturally in an area b) energy source that doesn’t run out c) convert waste into reusable material d) artificial, created by humans e) release of harmful materials into the

Use the correct word from the list: electricity, engine, signal, cure, supersonic, gadgets, artificial. The plane can fly at ______ speed. Smartphones and tablets are popular ______ today. The flowers looked real, but they were ______. The

Use the correct word: pollution, source, acid rain, fossil fuels. Burning ______ like coal and oil produces greenhouse gases. Factories are a major ______ of air contamination. ______ damages forests and corrodes buildings. Water ______ is

Use the correct word from the list: electricity, engine, signal, cure, supersonic, gadgets, artificial. Scientists are trying to find a ______ for cancer. The car’s ______ stopped working, so it couldn’t start. Modern homes use a lot of __

Complete the sentences with will or be going to: Look at those clouds! It ______ rain soon. I think people ______ use more solar panels in the future. We ______ start a recycling project next month.

Complete the sentences using the correct form: If we ______ (reduce) waste, the environment ______ (be) cleaner. If you ______ (recycle) more, you ______ (save) energy. People ______ (switch) to renewable energy if it ______ (become) cheap