Access to electricity has always been limited for people living in Nuevo Saposoa, a remote village in Peru. However, things went from bad to worse in March 2015 __1__ a flood damaged the power station in the area. The villagers were __2__ to turn to kerosene (煤油) lamps, which are not only expensive but also __3__ because of the poisonous matter they give off.
__4__， the researchers and students at the Universidad de Ingenieríay Tecnología (UTEC) in Lima, Peru heard about their __5__ situation and came up with a creative solution. They __6__ a lamp that can be powered by plants and soil, both of which can be found __7__ in the Amazonian rainforests where the village is located. Called Plantalámparas, the __8__ draws energy from a plant growing in a wooden box and uses it to __9__ an LED bulb.
While that may sound complicated and even impossible, it is quite __10__. The waste produced by plants undergoes oxidization (氧化作用) in the soil, which produces electrons (电子). The UTEC team placed electrodes (电极) inside the soil to __11__ the energy and store it in the lamp's batteries for __12__ use. The researchers say a single charge can light an LED bulb for two hours — enough __13__ for people to get their evening chores done. The university __14__ ten such lamps to Nuevo Saposoa in October 2015. So far, they have been a huge __15__！ Elmer Ramirez, UTEC's professor, believes the plant powered lamps could also help improve the lives of thousands of other __16__ rainforest communities, 42% of which have no access to __17__.
This is not the __18__ time the students and professors of UTEC have come up with a(n) __19__ solution to a problem. In 2014, to deal with Peru's severe __20__ pollution they created a large advertising board that could be used as an air purifier (净化器) as well!
语篇解读：本文是说明文。秘鲁UTEC大学的师生为了解决偏远乡村用电难的问题发明了一种利用植物和土壤供电的灯。
1．A.after B．though
C．unless D．until
解析：选A 根据本句中的“from bad to worse”可知，在洪水毁了当地的发电站“后(after)”， Nuevo Saposoa村用电难的问题更加严重。
2．A.advised B．taught
C．asked D．forced
解析：选D 没有电，村民们“被迫(forced)”使用煤油灯。
3．A.disappointing B．inconvenient
C．strange D．dangerous
解析：选D 根据本空后的“the poisonous matter”可知，使用煤油灯很“危险(dangerous)”。
4．A.Fortunately B．Suddenly
C．Certainly D．Usually
解析：选A 根据下文内容可知，“幸运的是(Fortunately)”，UTEC大学的师生们想出了一个好主意帮助村民。
5．A.real B．embarrassing
C．bad D．unstable
解析：选C 根据上文内容可知，Nuevo Saposoa村的村民无电可用，情况很“糟糕(bad)”。
6．A.bought B．designed
C．discovered D．repaired
解析：选B 根据本空后的“a lamp that can be powered by plants and soil”可知，他们“设计出(designed)”一种利用植物和土壤供电的灯。
7．A.in detail B．in time
C．in harmony D．in abundance
解析：选D 只有制作新型灯的材料容易获得，这项发明才有可能得到广泛使用。故此处in abundance(大量地)符合语境。
8．A.village B．lamp
C．rainforest D．soil
解析：选B 根据本空前的Called和本空后的“draws energy”可知，这种“灯(lamp)”名叫Plantalámparas，从植物中获取电能。
9．A.light up B．make up
C．give up D．use up
解析：选A 本空前的it指代本句中的energy，表示这种灯利用从植物中获得的电能“点亮(light up)”LED灯泡。
10．A.widespread B．straightforward
C．wellknown D．laborsaving
解析：选B 本句开头的While表示对比或相反的情况，因此这里指尽管从植物中获取电能听上去很复杂，甚至不可能，但其实并“不难(straightforward)”。
11．A.waste B．save
C．produce D．direct
解析：选C 根据本空前的“placed electrodes (电极) inside the soil”可知，UTEC大学的团队把电极放进土壤就是为了“发(produce)”电。
12．A.additional B．free
C．regular D．later
解析：选D 根据本句中的store可知，把电能存进电池里是为了“以后的(later)”使用。
13．A.energy B．space
C．time D．brightness
解析：选C 根据本空前的“two hours”可知，两个小时的“时间(time)”足够人们完成夜间琐事了。
14．A.distributed B．sold
C．lent D．returned
解析：选A 根据上文内容可知，UTEC大学的师生发明这种新型灯就是为了帮助Nuevo Saposoa村的村民，所以他们完成发明后给该村“分发了(distributed)”十个这种灯。
15．A.success B．challenge
C．change D．surprise
解析：选A 根据下句中的“could also help ...”可知，这些灯很“成功(success)”，所以UTEC大学的教授认为它们也可以被推广到其他地方。
16．A.nearby B．small
C．remote D．ancient
解析：选C 解析见下题。
17．A.education B．electricity
C．technology D．entertainment
解析：选B 根据上文内容可知，UTEC大学的师生为了解决偏远乡村Nuevo Saposoa村用电难的问题才发明了这种灯，因此这里指将这种灯推广到其他用“电(electricity)”难的“偏远的(remote)”乡村。
18．A.best B．first
C．accurate D．normal
解析：选B 解析见下题。
19．A.clever B．simple
C．temporary D．immediate
解析：选A 根据下句内容可知，这不是UTEC大学的师生“第一次(first)”想出这么“聪明的(clever)”点子。
20．A.noise B．water
C．air D．vehicle
解析：选C 根据本句中的“an air purifier (净化器)”可知，这个也可以充当空气净化器的广告牌是用来应对秘鲁严重的“空气(air)”污染的。
