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As free as they make us, mobile phones s...

As free as they make us, mobile phones still need to stay close to a power source. Soon that may change with "green" power.

Three Chilean students got the idea for a plant-powered device(装置) to charge their cellphones, while sitting in their school's outdoor courtyard during a break from exams, with dead mobile phones. Then, one of them had an "aha" moment.

“It occurred to Camila to say about plants, "said inventor Evelyn Aravena. "Why don't you have a socket, if there are so many plants? 'After that, we thought, why don't they have a charging outlet? Because there are so many plants and living things that have the potential to produce energy, why not? ' "

Their invention — a small biological circuit called E-Kaia - uses the energy plants to produce during photosynthesis(光合作用). A plant uses only a small part of that energy and the rest goes into the soil, and that's where the E-Kaia collects it. The device plugs into the ground and then into your phone.

"It's the most amazing project I've ever seen in my life, plain and simple. They brought this original model, and it worked — and that's when it all changed, at least from my personal point of view and I began to support them. " said Mauricio Cifuentes.

The device solved two problems for the engineering students — they needed an idea for a class project, and an outlet to plug in their phones.

"Looking for a place to charge the notebook, which had no power, and the mobile phones, we weren't able to find anything because all the other students were in the same state of madness trying to find a place to charge their devices," said Aravena.

But plants are everywhere, and the biocircuit makes the best of their excess(过多的) power.

The E-Kaia doesn't carry much charge but it's powerful enough to completely recharge a mobile phone in less than two hours.

The student inventors have applied for patents on their technology, and expect the E-Kaia to go on sale in December 2016.

1.How could the students get the "green" power idea?

A. By carrying out an experiment.

B. Just from an occasional thought.

C. With the support of their professors.

D. Enlightened(启发) by the information in a science book.

2.How does the device work?

A. By using the energy during photosynthesis.    B. By using a small biological circuit.

C. By using the electricity stored in the device.    D. By using a device buried in the ground.

3.What can we learn from what Mauricio Cifuentes said?

A. He intended to buy the patent.

B. The device was made in a rough way.

C. He showed great interest in the device.

D. He attempted to produce the device in large numbers.

4.What might be the best title for the passage?

A. A New Device to Change the World

B. Green Power - A New and Potential Source

C. Chilean Students Find A Green Way to Charge Phones

D. A New Device Invented by Chilean Students Will Be on Sale

 

1.B 2.B 3.C 4.C 【解析】三个智利学生发明了一种装置,利用这种装置通过植物给手机充电。文章介绍了他们产生这种想法的由来,这种装置的工作原理等。 1.细节理解题。由第二和第三段中的“while sitting in their school's outdoor courtyard during a break from exams, with dead mobile phones. Then, one of them had an "aha" moment. “It occurred to Camila to say about plants, "said inventor Evelyn Aravena. "Why don't you have a socket, if there are so many plants?'After that, we thought, why don't they have a charging outlet? Because there are so many plants and living things that have the potential to produce energy, why not? ”可知,这几个孩子在考试休息期间(当时,他们的手机没电了)闲聊的时候,Camila无意中提到和植物有关的话题:有这么多植物,为什么没有一个插座呢?听了他的话,这些孩子就产生了这样的想法:为什么他们没有一个充电口呢?很多植物和生物有产生能量的潜能。由此可知,他们的想法是偶然产生的。故B选项正确。 2.细节理解题。由第四段中的“Their invention - a small biological circuit called E-Kaia - uses the energy plants to produce during photo-synthesis(光合作用)”可知,这个装置,实际上就是一个小的生物电路,使用光合作用过程中植物产生的能量。故B选项正确。 3.推理判断题。由第五段中的“It's the most amazing project I've ever seen in my life, plain and simple. They brought this original model, and it worked - and that's when it all changed, at least from my personal point of view and I began to support them”可知,Mauricio Cifuentes认为这是他一生中见过的最令人惊奇的工程,非常简单。他支持这些孩子们。由此可知,他对这个发明是非常感兴趣的。C选项正确。 4.标题归纳题。三个学生发明了一种装置,利用这种装置通过植物给手机充电。文章介绍了他们产生这种想法的由来,这种装置的工作原理等。故C选项适合做该文章标题。 【名师点睛】概括主旨的方法是:先看首尾或各段开头再看全文找主题句,若无明显主题句,就通过关键词句来概括(如议论文中寻找表达作者观点态度的词句,记叙文寻找概括情节和中心的动词或反映人物特点的形容词)。科技说明文的主旨大意往往在文章的开头一段或前两段。该文就是一篇科技说明文。我们可以通过前两段就可以确定文章大意:三个学生发明了一种装置,利用这种装置通过植物给手机充电。
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