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NEW TPO 8 Which of the following is an advantage of using MFCs in remote areas?

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Microbial Fuel Cells
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Microbial fuel cells (MFCs) are an innovative technology that uses bacteria to generate electricity. MFCs harness the natural abilities of microbes to break down waste materials and, in the process, release energy. The concept of using bacteria for power is not new, but recent advances have made MFCs more efficient and practical for broader applications.



Inside MFCs, microbes “eat” things like food waste, and during this digestion, they release tiny particles called electrons.  These electrons move through the system in a controlled way, creating an electric current.  How well the system works depends on the type of bacteria and how the device is set up.  Some types of bacteria are especially good at passing these electrons along, and scientists are always looking for better combinations. One particular type, called Geobacter sulfurreducens, has become famous for its remarkable ability to share energy with the system.

One of the most promising applications of MFCs is in wastewater treatment. Traditional methods of treating wastewater are energy-intensive, but MFCs can treat wastewater while simultaneously generating electricity. This dual function makes them an attractive option for sustainable waste management. MFCs also have potential applications in remote areas where access to conventional power sources is limited.

5.Which of the following is an advantage of using MFCs in remote areas?

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正确答案:B
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该题为推理题,题目:以下哪项是在偏远地区使用MFCs的优点? 解题思路:需要定位到原文中提及了“MFCs”和“remote areas”的地方,看原文提供了哪些信息,从中能否推测出隐含信息。 直接定位原文最后一句:“MFCs also have potential applications in remote areas where access to conventional power sources is limited.”意思是:MFC在偏远地区也有潜在应用,因为这些地区获得传统电力来源的机会有限。 选项分析: A.They can increase the generating power of traditional power sources.(可以提高传统电源的发电能力。)原文未提及,排除。 B.They can improve access to electricity.(可以改善获得电力的机会)对应原句中“access to conventional power sources is limited”既然传统电力供应有限,而MFC可以在那里使用,意味着MFC能提供替代电源,帮助这些地区获得电力。符合原文含义。正确。 C.They reduce the waste created by conventional power sources.(可以减少传统能源产生的废弃物)原文未提及传统发电会产生什么废弃物,也没说MFC能减少这些废弃物,排除。 D.They cost less than conventional power sources.(比传统电源更便宜)原文未提及成本,排除。

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