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  3. Why do human beings still risk their lives under ground and doing one of the dirtiest and most dangerous jobs in the world? It i

Why do human beings still risk their lives under ground and doing one of the dirtiest and most dangerous jobs in the world? It i

admin2019-05-17  20
问题    Why do human beings still risk their lives under ground and doing one of the dirtiest and most dangerous jobs in the world? It is an increasingly urgent question, given the recent mining accidents in Sago, W. Va and Huntington, Utah. A small group of engineers and robotics experts look forward to a day in the not-too-distant future when robots and other technology do most of the dangerous mining work.
   Robotic technology, in particular, holds much promise, McAteer says, especially when it comes to mapping mines and rescuing trapped miners—the special operations of the mining industry.
   One of the first mining robots was developed five years ago at Carnegie Mellon University’ s Robotics Institute. It was called Groundhog. It used lasers(激光器) to "see" in dark tunnels and map abandoned mines—some of the most dangerous work in the business.    The latest design is called Cave Crawler. It’ s a bit smaller than Groundhog, and even more advanced. It can take photos and videos and has more sensors that can detect the presence of dangerous gases. Incredibly, the robot has a real sense of logic. If it comes across an obstacle it gets momentarily confused. It has to think about what to do and where to go next. Sometimes it throws a fit just like a real person.
   The greatest problem, though, is cost. The money of the earliest research project was provided by the government, but that money has dried up, and it’ s not clear where future money will come from. Partly for that reason, and partly because of advances in safety, mining is not nearly as dangerous as it was in the past. Since 1990, fatalities(死亡率) have declined by 67% and injuries by 51% , according to the National Mining Association.
   Some experts predict that robots in mines will serve much of the same function that they do in the automotive industry. The robots do the most boring and dangerous jobs, but won’ t get rid of the need for human workers.
We can infer from the passage that______.
选项 A、the mining robots do most of the mining work at present
B、Groundhog can discover the presence of dangerous gases
C、experts are trying to make robots help miners with dangerous work
D、robots cannot do dangerous work in dark areas
答案C
解析 根据第一段最后一句“A small group of engineers and robotics experts look forward to a day in the not-too-distant future when robots and other technology do most of the dangerous mining work．”以及下文介绍的两款矿用机器人可推知，专家正在努力让机器人帮忙做最无聊、最危险的工作，所以C项正确。文中并没有说明“目前采矿的机器人做大部分采矿工作”，所以A项不正确；根据第四段第三句“It can take photos and videos and has more sensors that can detect the presence of dangerous gases．”可知，能发现危险气体的是Cave Crawler，而不是Groundhog，所以B项不正确；根据第三段最后一句“It used lasers to‘see’in dark tunnels and map abandoned mines—some of the most dangerous work in the business．”可知，机器人可以在黑暗中做危险的工作，所以D项不正确。故选C。
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