2014高考英语阅读理解抓分训练(63)及答案 1.(201*·山东卷)D Since the 1970s, scientists have been searching for ways to link the brain puters. puter interface(BCI) technology could help people with disabilities mands to machines. Recently, two researchers, Jose Milan and Michele Tavella from the Federal Polytechnic school in Lausanne, Switzerland, demonstrated(展示)a small robotic wheelchair directed by a person’s thoughts. In the laboratory, Tavella operated the wheelchair just by thinking about moving his left or right band. He could even talk as he watched the vehicle and guided it with his thoughts. “our brain has billions of nerve ceils. These send signals through the spinal cord (脊髓)to the muscles to give us the ability to move. But spinal cord injuries or other conditions can prevent these weak electrical signals from reaching the muscles,” Tavella says. “Our system allows disabled people municate with external world and also to control devices.” The researchers designed a special cap for the user. This head cover picks up the signals from the scalp(头皮) and sends them to puter. puter interprets the signals mands the motorized wheelchair. The wheelchair also has two cameras that identify objects in its path. They help puter react mands from the brain. Prof. Milan, the team leader, says scientists keep improving puter software that interprets brain signals and turns them into mands. “The practical possibilities that BCI technology offers to disabled people can be grouped in two categories: communication, and controlling devices. One example is this wheelchair.” He says his team has set two goals. One is testing with real patients, so as to prove that this is a technology they can benefit from. And the other is to guarantee that they can use the technology over long periods of time. A. help to puter systems B. link the human brain puters C. help the disabled to recover D. control a person's thoughts 72. How" did Tavella operate the wheelchair in the laboratory? A.
