Question

【題目】Since the 1970s，scientists have been searching for ways to link the brain with computers. Braincomputer interface (BCI) technology could help people with disabilities send commands to machines.

Recently，two researchers, Jose Millan 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 hand. He could even talk as he watched the vehicle and guided it with his thougts.

“Our brain has billions of nerve cells.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 to communicate 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 (頭皮) and sends them to a computer. The computer interprets the signals and commands the motorized wheelchair. The wheelchair also has two cameras that identify objects in its path. They help the computer react to commands from the brain.

Prof.Millan，the team leader，says scientists keep improving the computer software that interprets brain signals and turns them into simple commands. “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.

【1】How did Tavella operate the wheelchair in the laboratory?

A．By controlling his muscles.

B．By talking to the machine.

C．By moving his hand.

D．By using his mind.

【2】Which of the following shows the path of the signals described in Paragraph 5?

A．scalp→computer→cap→wheelchair

B．computer→cap→scalp→wheelchair

C．scalp→cap→computer→wheelchair

D．cap→computer→scalp→wheelchair

【3】Which of the following would be the best title for the text?

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 Injuries

Answer 1

【答案】

【1】D

【2】C

【3】C

【解析】

試題分析：本文是一篇說明文，自從20世紀(jì)70年代，科學(xué)家們一直都在尋找能夠連接大腦和電腦的方法。腦計算機接口（BCI）技術(shù)可以幫助殘疾人向機器發(fā)送指令。

【1】D細節(jié)題。第三段第一句 In the laboratory，Tavella operated the wheelchair just by thinking about moving his left or right hand.在實驗室，Tavella只是通過思考移動他的左手或者右手來操作輪椅。故選D

【2】C細節(jié)題。根據(jù)第五段大一：研究人員為用戶設(shè)計了一個特殊的帽子。這個頭罩收集來自頭皮的信號并將它們發(fā)送到計算機。計算機翻譯出信號從而操控輪椅。輪椅也有兩個攝像頭，識別道路中的對象。他們幫助計算機反應(yīng)大腦發(fā)出的指令�？梢耘袛喑鲰樞蚴莝calp→cap→computer→wheelchair故選C

【3】C主旨分析題。通讀全文可知道，這是一篇總分結(jié)構(gòu)的說明文。第一段為中心段Since the 1970s，scientists have been searching for ways to link the brain with computers. Braincomputer interface (BCI) technology could help people with disabilities send commands to machines.自從20世紀(jì)70年代，科學(xué)家們一直都在尋找能夠連接大腦和電腦的方法。腦計算機接口（BCI）技術(shù)可以幫助殘疾人向機器發(fā)送指令。故選C