Lesson 1: Reading They are wind, nuclear, water and solar energy We need energy for providing electricity. 1 . Six hundred balloons were ______________ at the ceremony . 2 . They are looking for _______________ methods of making it . 3 . People use ________________ to run machines , heat and cool their homes . 4 . The food in the restaurant is cheap , but the choice is rather_________________ . 5 . Fuel supplies are nearly_________________ . Sources of energy Advantage(s) Disadvantage(s) Nuclear power Solar energy Water power Wind power Geothermal heat Unlimited Very dangerous. Plentiful , infinite, clean and safe. Produced only in daytime Clean and safe Must build dams , so expensive Clean and unlimited Available only in a few places. Sources of energy Advantage(s) Disadvantage(s) Nuclear power - Unlimited - Very dangerous. Solar energy - Plentiful , infinite, clean and safe. - Produced only in daytime Water power - Clean and safe - Must build dams , so expensive Wind power - Clean and unlimited. - Not available when there is no wind Geothermal heat - Clean and safe - Available only in a few places. [...]...After you read: Complete the summary of the reading passage by filling each blank with a suitable word from the box We need energy to live and work.Our nature source of (1) is oil Oil is (2) kind of fossil fuel The amount of fossil (3) _ in the world is(4) _ Therefore, we must save it, and at the . Lesson 1: Reading They are wind, nuclear, water and solar energy We need energy for providing electricity. 1 . Six hundred balloons. summary of the reading passage by filling each blank with a suitable word from the box We need energy to live and work.Our nature source of (1) ______is oil