Question

20．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？"asked Jamie Taylor of the Wave Energy Group in Scotland．"There is certainly a lot of energy in waves．"
Scientists are working on using that energy to make electricity．The United States and a few other countries have started doing research on wave energy，and it is already being used in Scotland．
Most waves are created when winds blow across the ocean．"The winds start out by making little ripples （波紋） 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 coast，people can set up dams（大壩） to block the water and send it through a large wheel called a turbine（渦輪）．The turbine can then power an electrical generator（發(fā)電機(jī)）．
We will never run out of wave power．Besides，wave energy does not create the same pollution as oil and coal do．
Oceans cover three quarters of the earth's surface．That would make wave power seem perfect for creating energy around the world．But there are some disadvantages that need us to pay more attention to．
Jamie Taylor said that wave power still cost too much money．He said that its influence on animals in the sea is still unknown．Besides，wave power would get in the way of fishing and boat traffic．
With more research，"Many of these problems might be solved，"Taylor said．"Finding more energy sources（資源） 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 button，an ocean wave could be providing the electricity!

56．We can learn from the passage thatB．
A．a(chǎn)lmost every country is making use of the wave power at present
B．it is necessary for us to develop wave power instead of oil and coal
C．wave power will be sure to make some bad influence on sea animals
D．scientists are making efforts to find new ways of fishing and boat traffic
57．What does the fourth paragraph tell us？C
A．Why scientists are doing the research on wave power．
B．What experience that scientists have achieved so far．
C．How the wave energy forms and grows bigger．
D．Which countries are trying out wave power．
58．What's the writer's attitude towards wave power？A
A．The writer believes that wave power will be used widely by man．
B．The writer doubts if wave energy can be changed into electricity．
C．The writer is sure the experiments will come to the end some day．
D．The writer thinks that wave power isn't worth researching at all．
59．What can be the best title for the passage？D
A．Sea Animals and Wave Power．
B．How Do We Get Wave Energy？
C．The Advantages of Wave Power．
D．Can Waves Make Electricity？

Answer 1

分析 本文主要講述了人類希望利用波浪能這種取之不盡用之不竭的新型的技術(shù)來(lái)為人類的生活提供能源，用這種干凈環(huán)保的能源，來(lái)取代傳統(tǒng)的如石油、煤炭．

解答 56．B細(xì)節(jié)理解題．根據(jù)文中第三段中的原句"Scientists are working on using that energy to make electricity．The United States and a few other countries have started doing research on wave energy，and it is already being used in Scotland．"及倒數(shù)第二段中的原句Finding more energy sources（資源） is very important，for traditional sources of energy like oil and gas may run out some day．"可以得知，科學(xué)家正在研究利用海浪來(lái)發(fā)電．美國(guó)和其他的一些國(guó)家已經(jīng)開始做調(diào)研，在蘇格蘭已經(jīng)開始使用波浪能．找到其他的資源是很重要的，傳統(tǒng)資源如油和汽在未來(lái)可能會(huì)用完．所以B選項(xiàng)的描述：開發(fā)波浪能來(lái)替代油和煤炭對(duì)人類來(lái)說(shuō)是很必要的．故選B
57．C理解歸納題，結(jié)合第四段中語(yǔ)句"The winds start out by making little ripples （波紋） in the water，but if they keep on blowing，those ripples get bigger and bigger and turn into waves"可知風(fēng)開始的時(shí)候會(huì)引起水面上的小波紋，但是如果它繼續(xù)吹，小波紋將會(huì)變得越來(lái)越大變成波浪．故本段主要描述的是波浪能是怎么形成和產(chǎn)生的．故選C．
58．A細(xì)節(jié)理解題，結(jié)合文中第四段中的原句"Oceans cover three quarters of the earth's surface．That would make wave power seem perfect for creating energy around the world．"可以得知，海洋覆蓋了地球的四分之三，這可能使波浪能來(lái)為世界創(chuàng)造能源是完美的事情．作者相信波浪能將會(huì)被人類廣泛的使用．故A的描述是正確的．
59．D標(biāo)題歸納題，縱觀全文理解可知，文章都在描述人類在利用海浪來(lái)發(fā)電所做出的努力，以及對(duì)波浪可以產(chǎn)生能量，并取代煤炭等自然資源的前景的展望．而且，根據(jù)文章第一段的原句Some scientists think that waves could help make electricity．可以得知，有些科學(xué)家恩威海浪合義幫助我們發(fā)電．故D選項(xiàng)最為題目最合適．

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