"Have you ever been out on a boat and felt it lifted up by a wave? Or have you jumped in the water and felt the rush of energy as waves came over you?" asked Jamie Taylor of the Wave Energy Group at the University of Edinburgh. "There is certainly a lot of energy in waves," he said. Scientists are working to use that energy to make electricity. Most waves are created when
winds blow across the ocean. "The wind starts out by making little ripples (涟漪), but if they keep on blowing, those ripples get bigger and bigger and turn into waves," Taylor said. "Waves
are one of nature 's ways of picking up energy and then sending it off on a journey. "
When waves come toward the shore, people can set up dams to block the water and send it
through a large wheel called a turbine (涡轮机). The turbine can then power an electrical generator(发电机) to produce electricity.
"The resource is huge," said Janet Swain of the World Watch Institute. "We will never run out of wave power." Besides, wave energy does not create the same pollution as other energy sources, such as oil or coal. Oceans cover three-quarters of the Earth's surface - that would make wave power seem ideal for creating energy throughout the world, though there are some weak points yet to overcome.
Swain said that wave power still costs too much money. She also said that its effects on sea animals are still unknown. What is more, wave power could affect fishing and boat traffic.
【Have you ever been out on a boat and felt it lifted up 阅读理解答案】相关文章:
★ Ask most American children what they want to 阅读理解答案
★ Few acts are as cruel as making fun of the less fortunate阅读理解答案
★ Alex London Research Laboratory (ALRL) is part of Alex Co., 阅读理解答案
★ Reporter: Miss Ariel Winter, how does it feel to be the voice behind阅读理解答案
★ Homesickness Only a person far away from home and knows what happiness is.阅读理解答案
★ About 1966 or so, a NASA (美国航空航天局) team doing work for the Apollo 阅读理解答案
★ I grew up in a small town.My father raised chickens and ran 阅读理解答案
★ Sagrada Familia ( 2,056,448 visits/year)阅读理解答案
★ Scientific experiments can sometimes go wrong and when they 阅读理解答案
★ Attention to detail is something everyone can阅读理解答案
最新
2019-11-15
2019-11-15
2019-11-15
2019-11-15
2019-11-15
2019-11-15