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训练23 阅读理解＋阅读填空＋完形填空＋短文改错 (建议用时40分钟)Ⅰ.阅读理解three legs.In a short time，the dog learns to deal with its physical disability.Now，scientists have developed robots that behave in much the same way. We can find robots everywhere.Robots build cars，play chess and clean your house.They may someday drive your car，too.Two robots，named Spirit and Opportunity，were sent to Mars on a mission to explore the red planet.Jeff Clune is a computer scientist at the University of Wyoming.He says robots also help people in natural disasters.Robots are deployed in search and rescue operations following an earthquake.They may someday also be used to examine the wreckage(残骸) of a nuclear accidentose types of situations and environment are extremely unpredictable and dangerous.And it is very likely that robots and humans in those situations become damaged.” He and other scientists are developing technology so that robots will continue operating after the first sign of injury.They want the machines to have the ability to make changes and continue performing until they can be repaired. Mr.Clune and researchers in France have added one more operation to the skill set of robots working under difficult conditions.They say they programmed a hexapod robot，one with six legs，and a robotic arm to learn how to deal with injury.Their findings were reported in the journal “Nature”．Mr.Clune said that once the robots become damaged，they use their knowledge of how their body works to find a way to deal with the damage. He says the robots are also programmed with childlike curiosity.In other words，they are always asking questions and looking for answers.The whole process takes about one minute for the robots to find a way to overcome damage. | 
