阅读理解 LOS ANGELES-Onions make you cry, add flavor to food and are talked about a lot for their medicinal benefits．Now the vegetable has another use-powering up green energy． A new system debuts on F 题目和参考答案——青夏教育精英家教网—

阅读理解

　　LOS ANGELES(Reuters)－Onions make you cry, add flavor to food and are talked about a lot for their medicinal benefits．Now the vegetable has another use－powering up green energy．

　　A new system debuts on Friday that changes onion juice into electricity at Gills Onions, the largest fresh onion processor(加工机)in the United States．

　　The Oxnard, California-based company expects its new onion-fueled power to reduce its electric bill by ＄700, 000 a year and cut its annual greenhouse gas releasing by up to 30,000 tons．The happy ending to this green energy tale, however, generated another question：how to get rid of onion waste．“When we peel an onion, 35 to 40 percent of the onion comes off before we have a usable onion．That’s the top, tail and skins around the onion before you get to the meat,” said Steven Gill, co-owner of the 25-year-old company．

　　They used to take the waste to the fields for composting(堆肥)but that became a problem as it cost too much．Ten years ago, Gill started looking at technology for a solution．“We ended up destroying the skins as they come out of the plant and extracting all the juice, which is very high in sugars, and bacteria love it,” Gill said．

　　In the new system, bacteria produce methane gas(沼气)from the juice．The gas then goes to two 300 kilowatt fuel cells, creating enough power for 460 homes．The company expects to get 35 to 40 percent of its electricity from this new system．

　　The company invested ＄9．5 million in the project and will receive ＄2．7 million from Southern California Gas Co．, a regulated subsidiary of Sempra Energy, as part of a state program to encourage self-contained generation by businesses．In addition to cutting its electric bill, the company will save ＄400,000 in costs of taking the waste to the fields and expects pay-back in six years．

　　The onion grower now has a new goal：to be a zero-waste facility by 2013．

　　“We wanted to follow it all the way through and make the full circle,” Gill said．

(1)

What would be the best title for this passage?
[　　]
A．	Onions are made use of in America now
B．	US company finds a new way to reduce costs
C．	Onions are widely used to produce electricity now
D．	US company turns onion juice into electricity

(2)

According to the passage, we can learn that in the past __________．
[　　]
A．	onion waste was a problem for most people
B．	a big part of an onion was wasted
C．	onions were mainly used as medicine
D．	onions were not liked by most people

(3)

In the new system, onions can be used to produce electricity mainly because __________．
[　　]
A．	the skins of onions can be destroyed easily
B．	the onion waste is taken to the fields
C．	a lot of bacteria are put into onions
D．	bacteria can produce methane gas from onion juice

(4)

It is implied in the passage that __________．
[　　]
A．	every family can use onions to produce electricity
B．	this new technology is not well received by some people
C．	onions have played the most important role in producing power
D．	using onions to produce electricity will help reduce pollution

(5)

In which part of a newspaper would you most probably read this passage?
[　　]
A．	Science
B．	Education
C．	Health
D．	Agriculture

答案：1．D;2．B;3．D;4．D;5．A;

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阅读理解

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