4. (2014鹽城) 他習(xí)慣于每天晚飯后散步。

He every day.

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Since the 1970s,scientists have been searching for ways to connect the brain (大腦) with computers.Brain computer interface (BCI) technology could help people with disabilities send commands (命令) to machines.

Recently,two scientists,JoSe Millan and Michele Tavella from the Federal Polytechnic School in Lausanne,Switzerland,show a small robotic wheelchair (輪椅) directed by a person's thoughts.

In the laboratory,Tavella controlled the wheelchair just by thinking about moving his left or right hand. He could even talk as he watched and guided it with his thoughts.

“Our brain has billions of body cells. These send signals (信號) through the spinal cord (脊髓) to the body part to give us the ability to move. But spinal cord injuries (脊柱受傷) can prevent these weak signals from reaching the body part， Tavella says.Our system allows disabled people to communicate with outer world and also to control machines."

The scientists designed a special cap for the user. This cap picks up the signals from the scalp (頭皮) and sends them to a computer. The computer finds meanings of the signals and controls cap the wheelchair with an engine.

Prof. Millan,the team leader,says the practical possibilities that BCI technology offers to disabled people can be grouped in two kinds： communication,and controlling objects. One example is this wheelchair.

He says his team has two goals. One is testing with real patients to prove that this is a technology they can get advantages from. And the other is to make sure that they can use the technology for long.


() 1. BCI is a technology that can .

   A. help to make computer systems more modern

   B. connect the human brain with computers

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() 2. Which of the following shows the path of the signals devScribed in Paragraph 5 ?

   A. scalp— computer—cap— wheelchair

   B. computer- cap— scalp— wheelchair

   C. scalp— cap— computer— wheelchair

   D. cap— computer—scalp—wheelchair


() 3. The team will test with real patients to .

人 make money from them   B. prove the technology useful to them

   C. make them live longer   D. learn about their physical condition


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   A. Switzerland,the BCI Research Center

   B. New Findings About How the Human Brain Works

   C. BCI Could Mean More Freedom for the Disabled

   D. Robotic Vehicles Could Help to Cure Brain Sickness 

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