Question

CORVALIJS. Ore.-- Engineers at Oregon Suite University have made a breakthrough in the performance of microbial (微生物的)fuel cells that can produce electricity directly from wastewater，opening the door to a future in which waste treatment plants not only will power themselves, but will sell extra electricity.

The new technology ,developed at OSU, can now produce 10 to 50 more times the electricity, per volume, than most oilier approaches using microbial fuel cells,and 100 times more electricity than some.

Researchers say this could eventually change the way that wastewater is treated all over the world, replacing the widely used “activated sludge (泥浆) ” process that has been in use for almost a century. The new approach would produce significant amounts of electricity while effectively cleaning the wastewater,

“If this technology works on a commercial scale the way we believe it will ,the treatment of wastewater could be a huge energy producer, not a huge energy cost.” said Hong Liu ，an associate professor in the OSU Department of Biological and Ecological Engineering. “This could have an impact around the world, save a great deal of money, provide better water treatment and promote energy sustainability.”

The biodegradable (能降解的）characteristics of wastewater, if developed to their full potential, could theoretically provide many times the energy that is now being used to process them, with no additional greenhouse emissions.

OSU researchers reported several years ago on the promise of this technology, but at that time the systems in use produced far less electrical power. With new concepts, the technology can now produce more than two kilowatts per cubic meter of liquid reactor volume.

The new system also works better than an alternative approach to creating electricity from wastewater, based on anacrobic (臭氧的）digestion that produces methane (甲烷）.It treats the wastewater more effectively, and doesn’t have any of the environmental drawbacks of that technology, such as production of possible release of methane, a significant greenhouse gas.

1.Which of the following best expresses the main idea of the passage?

A．The treatment of wastewater is a huge energy cost.

B．Wastewater is being treated differently over the world.

C．Waste treatment plants have found a new way to power themselves.

D．Microbial fuel cells will produce more electricity from wastewater.

2.What can we learn about the new technology from the passage?

A．It can produce 100 times more electricity than any approach used today.

B．Through it more electricity can be created and water can be cleaned better.

C．It has already changed the way that wastewater is treated all over the world

D．It has opened the door to put microbial fuel cells to productive use.

3.What attitude does Professor Liu hold towards the new technology?

A. Supportive.      B. Critical.       C Unconcerned.    D. Curious.

4.According to the last paragraph, why does the new system work better than the alternative approach?

A．Because it is co-friendly and treats wastewater more effectively.

B．Because it can make full use of anaerobic digestion producing methane.

C．Because it may produce less methane than the alternative approach.

D．Because it can produce 10 times the energy than the alternative approach.

 

Answer 1

【答案】

1.D

2.B

3.A

4.A

【解析】

试题分析：本文叙述了研究发现现在可以用污水中的微生物的燃料来发电，并且还能净化污水，这种新技术理论上可以提供许多倍的能量,并且没有额外的温室气体排放。

1.标题归纳题。根据用污水中微生物的燃料来发电，故选D。

2.细节理解题。根据The new approach would produce significant amounts of electricity while effectively cleaning the wastewater,通过这种方法不仅能够发电而且还能净化污水，故选B。

3.细节理解题。根据If this technology works on a commercial scale the way we believe it will ,the treatment of wastewater could be a huge energy producer, not a huge energy cost.可知他支持这个新技术，故选A。

4.推理判断题。根据It treats the wastewater more effectively, and doesn’t have any of the environmental drawbacks of that technology,这种方法不仅能够更好地处理污水而且还很环保，故选A。

考点：环保类短文阅读。

点评：细节理解题是阅读理解题中必考的一种题型，其解题依据主要在阅读材料中找。笔者发现，这种题型可以用“重现”的方法来解答。所谓“重现”，就是指某一个单词或短语的同义、反义、上下义、同根词或原词在文中重复出现的现象。这种方法常用于解答完形填空，但用来解答阅读理解细节题也同样管用。细节理解题的重现指的是：正确答案选项语句中的单词或短语与阅读材料中的单词或短语构成一种重复出现的关系。它同样可以分为：同义、反义、上下义、同根词或原词。