题目内容
8.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 thoughts.
"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 (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.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.
41.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
42.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.
43.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
44.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
45.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 Disabled
D.Robotic Vehicles Could Help to Cure Brain Injuries.
分析 本文属于科普说明文,科学家找到了一种让人脑和电脑连接的起来的方法,进而发明了BCI.BCI可以帮助残疾人向机器发布命令.这也许是一项福音,文中介绍了它的原理和对残疾人带来的益处.
解答 41.B 推理判断题.根据第一段Since the 1970s,scientists have been searching for ways to link the brain with computers.Brain-computer interface (界面) (BCI) technology could help people with disabilities send commands to machines.人类一直在寻找把人脑和电脑联系在一起的方法,BCI可以帮助残疾人向机器发布命令.说明BCI是一种可以连接人脑和电脑的技术.故B正确.
42.D 细节理解题.根据第三段第一句In the laboratory,Tavella operated the wheelchair just by thinkingabout moving his left or right hand.可知Tavella通过思考移动左右手,就可以操作轮椅了.说明他通过思维来控制动作.故D正确.
43.C 细节理解题.根据第五段第一句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.首先头皮接受人的思想信号,接着特殊的帽子从头皮上获取信息,再传到计算机上,最终计算机操作轮椅前进.故C项顺序是正确的.
44.B.细节理解题.根据最后一段to prove that this is a technology they can benefit from证明他们可以从中获得的好处,故选B.
45.C.主旨大意题.结合第一段Braincomputer interface (BCI) technology could help people with disabilities send commands to machines.
BCI是一种可以连接人脑和电脑的技术,未来它能够帮助残疾人自由活动.在文章其他部分中叙述了与之相关的研究信息.故C正确.
点评 在做英语阅读时,首先通读全文,不要被某个或某些自己不熟悉的单词所困扰,了解大概意思.然后看问题,带着问题精读全文,同时选择答案,必要时用排除法.
利用暑期到希望小学为学生辅导英语.假设你是李华(Li Hua),请很据帖子的内容写一封申请信,首先请回答帖子中提出的问题,并谈谈你对这个活动的认识.
| To all, This summer,we want some volunteers to help the pupils of Hope Primary School learn English.What are your advantages in doing this job?What's your plan to do it?If you are interested,please write back before 24th,June. Yours, X X |
.
Yours,
Li Hua.
| A. | keep it | B. | to keep it | C. | to keep | D. | keep |