In summer, millions of people will head for the beach.And while the ocean can be a great place to swim and play, it may also be useful in another way.Some scientists think that waves could help make electricity.
“Have you ever been on a surfboard or boat and felt yourself being lifted up by a wave? Or have you jumped in the water and felt the energy as waves crashed over you?” asked Jamie Taylor of the Wave Energy Group at the University of Edinburgh in Scotland.“There is certainly a lot of energy in waves.”
Scientists are working on using that energy to make electricity.Most waves are created when winds blow across the ocean.“The winds start out by making little ripples (波纹) in the water, 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 towards the shore, people can set up dams or other barricades to block the water and send it through a large wheel called a turbine (涡轮) .The turbine can then power an electrical generator (发电机) .
The United States and a few other countries have started doing research on wave energy , and it is already being used in Scotland.
The resource is huge.We will never run out of wave power, besides, wave energy does not create the same pollution as other energy sources, such as oil and coal.
Oceans cover three quarters of the earth’s surface.That would make wave power seem perfect for creating energy around the world.There are some drawbacks, however.
Jamie Taylor said that wave power still cost too much money.He said that its effects on animals in the sea were still unknown.Plus, wave power would get in the way of fishing and boat traffic.
With more research, however, “many of these problems might be overcome,” Taylor said.“Demand for energy to power our TVs and computers, drive our cars, and heat and cool our homes is growing quickly throughout the world.Finding more energy sources is very important, for traditional sources of energy like oil and gas may run out some day.”
In the future, when you turn on a light switch, an ocean wave could be providing the electricity!
67.Which of the following is NOT true? A.Wave power costs too much money.
B.Wave energy creates the same amount of pollution as other energy sources.
C.Wave power affects fishing and boat traffic.
D.Wave power may affect marine animals.
68.We can infer from the passage that ______.
A.finding new energy sources like wave energy is important
B.wave energy is a resource that will never run out and is used all over the world
C.wave power is perfect for creating energy around the world
D.wave power doesn’t create any pollution
69.The underlined word “drawbacks” probably means ______.
A.regrets B.adventures C.disadvantages D.difficulties
70.What can be the best title for the passage?
A.How to Get Electricity by Waves.
B.A Huge Resource of Energy.
C.Can Waves Make Electricity?D.The Disadvantages of Wave Energy.
BACC
英语美文:有良师乃人生之幸(双语)
英语美文30篇系列之21
双语阅读:回家的感觉真好
浪漫英文情书精选:I'm So Sorry, Baby对不起宝贝
精选英语美文阅读:生活的涟漪
26个英文字母蕴含的人生哲理
英语美文:越长大越孤独(双语)
浪漫英文情书精选:Could This Be Real?这是真的吗?
生命可以是一座玫瑰花园
英语晨读:金窗
英语名篇名段背诵精华20
浪漫英文情书精选:My Everything我的一切
英语标准美文85
精选英语美文阅读:别让蜡烛熄灭
浪漫英文情书精选:Don't Give Up不要放弃
英语名篇名段背诵精华22
精美散文:守护自己的天使
美文欣赏:永远的朋友
英语美文:红色 Red (双语)
英语散文:If I were a Boy Again
浪漫英文情书精选:Good Morning早上好
英语晨读:雪夜星光
英语美文:Keep on Singing
英语晨读:思考生活
英语名篇名段背诵精华27
精选英语美文阅读:山居秋暝
英语美文:一双丝袜(有声)
精选英语美文阅读:英国民谣《绿袖子》
英语美文:艰难岁月也要满怀感恩之心(双语)
态度决定一切 Attitude Is Everything
不限 |