题目内容
1.DSince 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 commands 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 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(头皮) 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.Milan,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.
71.BCI is a technology that canB.
A.help to update computer systems B.link the human brain with computers
C.help the disabled to recover D.control a person's thoughts
72.How did Tavella operate the wheelchair in the laboratory?D
A.By controlling his muscles.B.By talking to the machine.C.By moving his hand.D.By using his mind.
73.Which of the following shows the path of the signals described in Paragraph 5?C
A.scalp→computer→cap→wheelchair B.computer→cap→scalp→wheelchair
C.scalp→cap→computer→wheelchair D.cap→computer→scalp→wheelchair
74.The team will test with real patients toB.
A.make profits from them B.prove the technology useful to them
C.make them live longer D.learn about their physical condition
75.Which of the following would be the best title for the text?C
A.Switzerland,the BCI Research Center
B.New Findings About How the Human Brain Works
C.BCI Could Mean More Freedom for the Disable
D.Robotic Vehicles Could Help to Cure Brain Injuries.
分析 本文是一则新闻报道,科学家寻找到了一种方法,把人脑与电脑连接起来,进而发明了Brain-computerinterface (BCI)技术的发明,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.文中介绍了它的原理和对残疾人带来的益处.
解答 1.B 细节理解.根据第一段"Since the1970s,scientists have been searching for ways to link the brain with computers."可知,BCI是一项把人脑与电脑连接起来的技术发明,故选B.
2.D 细节理解.根据第二段"Tavella operatedthe wheelchair just by thinking about moving his left or right band."可知,Tavella用控制左右手的想法来控制轮椅.故选D.
3.C 细节理解.根据第五段"Theresearchers designed a special cap for the user.This head cover picks up thesignals from the scalp(头皮) and sends them to a computer.The computerinterprets the signals and commands the motorized wheelchair.The wheel chairalso has two cameras that identify objects in its path.They help the computerreact to commands from the brain."可知,C项符合语境,故选C.
4.B 细节理解.根据最后一段"to provethat this is a technology they can benefit from.",证明他们可以从中获得的好处.故选B.
5.C 主旨大意.本文是新闻文体,因此要关注首段的中心,由首段的第二句话"Brain-computerinterface(BCI) technology could help people with disabilities send commands tomachines."由此推断选C.
点评 解答细节理解题时,一个常用的方法就是运用定位法,即根据题干和选项中的关键词从原文中找到相关的句子,与选项进行比较从而确定答案;推理判断题既要求学生透过文章表面文字信息推测文章隐含意思,又要求学生对作者的态度、意图及文章细节的发展作正确的推理判断,力求从作者的角度去考虑,不要固守自己的看法或观点.
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