Question

【题目】Since the 1970s, scientists have been searching for ways to link the brain with computers. Brain-computer interface (BCI) technology could help people with disabilities send orders to machines.

Recently, two researchers, Jose Millan and Michele Tavella from the Federal Polytechnic School in Lausanne, Switzerland, showed 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 wheelchair and guided it with his thoughts.

“Our brain has billions of nerve cells(神经细胞). These send signals through the spinal cord (脊髓)to the muscles(肌肉) 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 outside world and also to control the machine.”

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 a computer. The computer understands the signals and directs the motorized wheelchair. The wheelchair also has two cameras that recognize objects in its path. They help the computer react to orders from the brain.

Prof. Millan, the team leader, says scientists keep improving the computer software that understands brain signals and turns them into simple orders. “The practical possibilities that BCI technology offers to disabled people can be divided into two kinds: communication, and controlling the machine. 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 ensure that they can use the technology over long periods of time.

【1】BCI is a technology that can ______.

A. help to update computer systems

B. link the human brain with computers

C. help the disabled to become well

D. control a person's thoughts

【2】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.

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

A. scalp → computer → cap →wheelchair

B. compute → cap → scalp →wheelchair

C. scalp → cap → computer →wheelchair

D. cap → computer → scalp →wheelchair

【4】The team will test with real patients to ______.

A. make profits from them

B. prove the technology useful to them

C. make them live longer

D. learn about their physical condition

【5】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. Computer Technology Could Help to Cure Brain Injuries

Answer 1

【答案】

【1】B

【2】D

【3】C

【4】B

【5】C

【解析】

试题分析：大脑能不能直接和电脑机器连接起来并控制？最近科学家们研究出一种“脑控轮椅”。病人戴上特定的帽子就可以通过思考和想法操控轮椅。也许这是一项福音。

【1】细节题。由“scientists have been searching for ways to link the brain with computers. Brain-computer interface (BCI) technology could help people with disabilities send commands to machines.”可知BCI就是为了让人脑来直接连接电脑并控制。故选B。

【2】细节题。由“In the laboratory, Tavella operated the wheelchair just by thinking about moving his left or right hand.”可知，Tavella用移动左右手的想法来控制轮椅。故选D。

【3】细节题。由倒数第二段可知，信号从头皮传到帽子，再由电脑控制轮椅。故选C。

【4】细节题。根据最后一段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.可以知道选择现实中的父母去接受测试是为了满足他的团队的两个目标中的一个就是证明这个技术是否真正对他们有效。故选B。

【5】细节题。全文主要是在介绍BCI这一新发明并强调对残疾病人的巨大帮助。故选C