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Getting electricity(电)has always been a ...

Getting electricity(电)has always been a problem for the 173 people living in Nuevo Saposoa, a small village in Peru, South America. However, things went from bad to worse in March 2015 after heavy rains damaged(损坏)the only power cables(电缆)in the area. The villagers were forced to use oil lamps, which are not only expensive but also dangerous because of the harmful gases they produce.

Luckily, researchers at the University of Technology(UT)in Lima, Peru heard about their problem and found a wonderful solution(解决方法).They made a lamp that can be powered by plants and soil, both of which can be easily found in the Amazonian rainforest where the village lies. The lamp takes energy from a plant growing in a wooden box and uses it to light up an LED light bulb.

While that may sound amazing and even impossible, the science behind the idea is quite simple. As plants create their food (using the sun's energy, water and chemicals from the soil ),they also produce waste which they return to the soil. Tiny animals in the soil eat this waste and they produce electrons一the building blocks of electrical energy. The UT team put special sticks inside the soil to get the energy and keep it in the lamp's batteries for later use. The researchers say a single charge can power a 50-watt LED light for two hours 一enough time for local villagers to get their evening work done.

The university gave ten Plant Lamps to the villagers of Nuevo Saposoa in October 2015. So far, they have been a huge success! Elmer Ramirez, the UT professor who invented the lamp,believes the Plant Lamp could help improve the lives of many people, especially small rainforest communities. 42% of whom have no electricity.

1.What is true about the Plant Lamp?

A. It can be made by local people.

B. It is much easier to use than oil lamps.

C. It can produce all the electricity the villagers need.

D. The things it needs to make electricity are easy to find.

2.The Plant Lamp's inventor believes it could be most helpful for          .

A. rainforest communities    B. cars

C. poor people in cities    D. farmers

3.What is the purpose of the passage?

A. To report on a new invention

B. To explain a new scientific theory(理论)

C. To describe how electricity is made

D. To discuss the problems of poor villages

 

1.D 2.A 3.A 【解析】本文主要介绍了Elmer Ramirez发明了一种植物灯。这种灯可以由植物和土壤提供动力发电。它的发明者认为这种灯能改善热带雨林国家的人们的什么,因为那里42%的国家没有电。 1.D 推理判断题。根据They made a lamp that can be powered by plants and soil, both of which can be easily found in the Amazonian rainforest where the village lies.可知他们制作了一盏可以由植物和土壤提供动力的灯,这两种东西都可以很容易地在亚马逊雨林的亚马逊雨林中找到。故推断这种植物灯需要发电的东西,很容易找到,故选D。 2.A 推理判断题。根据Elmer Ramirez, the UT professor who invented the lamp,believes the Plant Lamp could help improve the lives of many people, especially small rainforest communities. 42% of whom have no electricity.可知42%的热带雨林国家没有电,所以这种植物灯的发明者认为,这种灯对于生活在热带雨林国家的人们最有用。故选A。 3.A 推理判断题。本文围绕着一种植物灯的发明以及使用展开的,故本文主要报道了一种植物灯,故选A。 点睛:认真阅读题干,根据题干要求,在文中寻找答案所在的语句和段落,进行分析理解,词义猜测,概括判断和推理判断,选出正确的选项。例如小题1,根据They made a lamp that can be powered by plants and soil, both of which can be easily found in the Amazonian rainforest where the village lies.可知他们制作了一盏可以由植物和土壤提供动力的灯,这两种东西都可以很容易地在亚马逊雨林的亚马逊雨林中找到。故推断这种植物灯需要发电的东西,很容易找到,故选D。
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