“Haveyoueverbeenoutonaboatandfeltitliftedupbyawave?Orha...
問題詳情:
“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 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 (漣漪), 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 (渦輪機). The turbine can then power an electrical generator to produce electricity.
“The resource is huge,” said Janet Swain of the Worldwatch 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. Traditional sources of energy like oil and gas may someday run out. “Demand for energy to power our TVs and computers, drive our cars, and heat and cool our homes is rising rapidly throughout the world,” Swain said. In the future when you turn on a light, an ocean wave could be providing the electricity!
篇章導讀:本文是一篇科普說明文,介紹了有關海洋波浪能源的應用前景及存在的問題。
13.The writer uses the two questions at the beginning of the passage to ________.
A.test the readers' knowledge about waves
B.draw the readers' attention to the topic
C.show Jamie Taylor's importance
D.invite the readers to answer them
14.The underlined phrase “picking up” is closest in meaning to “________”.
A.starting again B.speeding up
C.improving D.gathering
15.It can be inferred that someday we might not worry about ________.
A.our power supply B.our boat traffic
C.air pollution D.our supply of sea fish
16.We can make better use of wave energy if we ________.
A.shorten its journey to thousands of homes
B.build more small power stations on the oceans
C.reduce the cost of turning it into electric power
D.quicken the steps of producing electricity
【回答】
13.B 推理判斷題。作者在問題後談到了波浪能源的相關內容,所以文章開頭的兩個問句是為了引起讀者的注意,從而引出文章主題。故選B。
14.D 詞義猜測題。本句中的“and then sending it off on a journey”是關鍵資訊,it指代energy, send ... off意為“把……發散出去”,由此可知,前一動作是收集能源的過程。故picking up在此意為“收集”,與gathering同義。故選D。
15.A 細節理解題。由第二段前兩句可知,資源很龐大,所以將來終有一天我們不必再為電力供應擔憂。never run out of “永遠不會用完”是關鍵資訊。故選A。
16.C 細節理解題。根據第三段第一句“Swain said that wave power still costs too much money.”可知,波浪能源仍耗資很多。由此可知,如果我們能降低波浪能源的發電成本,我們將會更好地利用波浪能源。故選C。
知識點:科普環保類閱讀
題型:閱讀理解
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