题目内容：

阅读下列短文，从各题所给的A.B.C.和D项中选出最佳的选择，并在答题卡上将该选项涂黑.

Getting electricity 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 the only power cables 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. 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 ides 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 – the building blocks of electrical energy. The UT team put special sticks inside the soil to capture 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 - 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 are the problems of oil lamps according to Paragraph 1?

A. They are difficult to use and create pollution

B. They are expensive to buy and easily damaged

C. They are difficult to repair and produce little light

D. They are expensive to use and can be bad for health

2.The electricity made by the Plant Lamp comes from______.

A. plant food                  B. plant waste

C. the soil’s heat            D. the sun’s energy

3.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 village need

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

4.The Plant Lamp’s inventor believes it could be most helpful for _________.

A. rainforest communities    B. cars

C. poor people in cities    D. farmers

5. What is the purpose of the passage?

A. To report on a new invention

B. To explain a new scientific theory

C. To describe how electricity is made

D. To discuss the problems of poor villages