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 coast，people can set up dams（大坝） 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）．
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（资源） 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．almost 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 本文主要讲述了人类希望利用波浪能这种取之不尽用之不竭的新型的技术来为人类的生活提供能源，用这种干净环保的能源，来取代传统的如石油、煤炭．

解答 56．B细节理解题．根据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．"及倒数第二段中的原句Finding more energy sources（资源） is very important，for traditional sources of energy like oil and gas may run out some day．"可以得知，科学家正在研究利用海浪来发电．美国和其他的一些国家已经开始做调研，在苏格兰已经开始使用波浪能．找到其他的资源是很重要的，传统资源如油和汽在未来可能会用完．所以B选项的描述：开发波浪能来替代油和煤炭对人类来说是很必要的．故选B
57．C理解归纳题，结合第四段中语句"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"可知风开始的时候会引起水面上的小波纹，但是如果它继续吹，小波纹将会变得越来越大变成波浪．故本段主要描述的是波浪能是怎么形成和产生的．故选C．
58．A细节理解题，结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，海洋覆盖了地球的四分之三，这可能使波浪能来为世界创造能源是完美的事情．作者相信波浪能将会被人类广泛的使用．故A的描述是正确的．
59．D标题归纳题，纵观全文理解可知，文章都在描述人类在利用海浪来发电所做出的努力，以及对波浪可以产生能量，并取代煤炭等自然资源的前景的展望．而且，根据文章第一段的原句Some scientists think that waves could help make electricity．可以得知，有些科学家恩威海浪合义帮助我们发电．故D选项最为题目最合适．

点评 本文是一篇科普文，各个小题都能在文中找到适当依据．只要认真阅读短文，注意前后联系，就能顺利完成阅读．文章所设试题主要考察细节查找，做题关键是找出原文的根据，认真核查小题和原文的异同．