题目
题型：广东省期中题难度：来源：
Brain-computer interface (界面) (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 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. 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.
B. link the human brain with computers
C. help the disabled to recover
D. control a person"s thoughts
B. By talking to the machine.
C. By moving his hand.
D. By using his mind.
B. computer→cap→scalp→wheelchair
C. scalp→cap→computer→wheelchair
D. cap→computer→scalp→wheelchair
B. prove the technology useful to them
C. make them live longer
D. learn about their physical condition
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
答案
核心考点
试题【阅读理解。 Since the 1970s, scientists have been searching for ways to link the b】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
on the belief that in regular classes these children are held back in their intellectual (智力的) growth by 2 situations that are designed for the 3 children.
There can be little doubt that 4 classes can help the gifted children to graduate earlier and take their
place in life sooner. However, to take these 5 out of the regular classes may create serious problems.
I observed a number of 6 children who were taken out of a special class and placed in a 7 class.
In the special class, they showed little ability to use their own judgment, relying 8 on their teachers"
directions. In the regular class, having no worry about keeping up, they began to reflect 9 on many
problems, some of which were not on the school program.
Many are concerned that gifted children become 10 and lose interest in learning. However, this 11
is more often from parents and teachers than from students, and some of these 12 simply conclude that
special classes should be set up for those who are 13 .Some top students do feel bored in class, but why
they 14 so goes far beyond the work they have in school. Studies have shown that to be bored is to be
anxious. The gifted child who is bored is an 15 child.
| ( )1. A. principle ( )2. A. designing ( )3. A. smart ( )4. A. regular ( )5. A. children ( )6. A. intelligent ( )7. A. separate ( )8. A. specially ( )9. A. directly ( )10. A. doubted ( )11. A. concern ( )12. A. students ( )13. A. talented ( )14. A. believe ( )15. A. outstanding | B. theory B. grouping B. curious B. special B. programs B. stupid B. regular B. slightly B. cleverly B. bored B. conclusion B. adults B. worried B. think B. intelligent | C. argument C. learning C. little C. small C. graduates C. ordinary C. new C. wrongly C. voluntarily C. worried C. reflection C. scholars C. learned C. say C. anxious | D. discussion D. living D. average D. creative D. designs D. independent D. boring D. heavily D. quickly D. tired D. interest D. teachers D. interested D. feel D. ordinary |
| 语文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。 | |||
| Most students do an IQ text early in their school career. Even if they never see their results, they feel that their IQ is 1 determines how well they are going to do in life. When they see other students doing 2 (good) than them, they usually believe that those students have 3 higher IQ and 4 there is nothing they can do to change facts. However, new research 5 EQ suggests that success is not simply the result of a high IQ. While your IQ tells you how 6 (intelligence) you are, your EQ tells you how well you use your intelligence. Professor Salovery, 7 invented the term EQ, gives the following description: At work, it is IQ that 8 (get) you promoted. Supported by his academic research, Professor Salovery suggests that when someone"s future success 9 (predict), their character, 10 measured by EQ tests, might actually matter more than their IQ. | |||
| 阅读理解。 | |||
| Guandong province all together chose universities in Hong Kong; when the very best student of Beijing picked up HK University while giving up the nearby Peking or Tsinghua University; when the highest enrollment (录取) rate of Hong Kong Science and Industry University reached 48:1, it"s the high time to ask where the real education heaven for students in China is. Years ago, the answer certainly would be "Peking or Tsinghua University". But now no one could give the exact reaction without hesitation. The only sure thing is that HK universities have gradually showed an unusual attraction to a great many mainland students. It"s no doubt to call this HK craz e(狂热), which is even out of the expectation of those HK universities themselves. How can HK universities shake the steady foundations of Peking and Tsinghua and attract so many mainland students? First, Hong Kong universities offer large-amount scholarship, especially for the top students who can receive the sum of scholarship as much as 400,000 HK dollars.  Since higher education has become a kind of heavy burden of many families, it"s easy to understand why the reaction to the generous offering of HK universities is great. Second, most HK universities receive professors and students from all over the world and carry out bilingual (双语) education. This kind of excellent language atmosphere is another attraction for mainland students. Further more, university students in Hong Kong have a better chance to study abroad as exchange students. Can mainland top universities like Peking or Tsinghua University calm as before when facing the unexpected competition from HK? Will they take relevant measures to win back the top students who once help them set the worldwide reputation? Time will explain it. The fierce competition brought by HK universities can be a good thing for an entire improvement of education in China. After the awakening and action taking of mainland universities, they can perform better toge  ther with HK universities. At least, it reminded the mainland universities the tuition fees(学费)are among students" top concern when they are choosing universities. It"s time to move. | |||
| 1. What is the passage mainly talking about? | |||
| A. Some thought brought by the enrollment of HK universities. B. Higher education in Hong Kong. C. The competition between HK University and Peking University. D. The fall of mainland universities. | |||
| 2. Top students from mainland apply for HK universities because ________. | |||
| A. many students now would love to study aboard to get a better experience B. they concern only about the tuition fees when choosing universities C. HK universities offer higher scholarship, better environment and more opportun  ities fortheir further study D. Peking university has lost its worldwide reputation | |||
| 3. What is the author"s attitude toward the competition brought by HK universities? | |||
| A. The government should take relevant measures to stop this unfair competition. B. Mainland universities had better lower their tuition fees and win back the top students. C. Universities both in mainland and in HK would get an entire improvement during the competition. D. It may probably cause a complete loss both sides in the end. | |||
| 4. From the passage we can see HK universities __________. | |||
| A. didn"t mean to enroll top students from mainland B. didn"t expect their enrollment of mainland students would be so popular C. have strict enroll  ment rules and only 1 out of 48 students can get the chance to study there D. are proud of their teaching staff and facilities | |||
| 5. What does the author mean by saying "It"s time to move" in the last paragraph? | |||
| A. Mainland universities should take measures as soon as possible to attract students. B. The opportunities come for top students to study abroad. C. Mainland universities should make full preparations to challenge mainland universities. D. Top students should be offered further education free of charge. | |||
| 阅读理解。 | |||
| It is hard to track the blue whale, the ocean"s largest creature, which has almost been killed off by commercial whaling and is now listed as an endangered species. Attaching radio devices to it is difficult, and visual sightings are too unreliable to give real insight into its behavior. So biologists were delighted early this year when, with the help of the Navy, they were able to track a particular blue whale for 43 days, monitoring its sounds. This was possible because of the Navy"s formerly top-secret system of underwater listening devices spanning the oceans. Tracking whales is but one example of an exciting new world just opening to civilian scientists after the cold war as the Navy starts to share and partly uncover its global network of underwater listening system built over the decades to track the ships of potential enemies. Earth scientists announced at a news conference recently that they had used the system for closely monitoring a deep-sea volcanic eruption (爆发) for the first time and that they plan similar studies. Other scientists have proposed to use the network for tracking ocean currents and measuring changes in ocean and global temperatures. The speed of sound in water is roughly one mile a second-slower than through land but faster than through air. What is most important, different layers of ocean water can act as channels for sounds, focusing them in the same way a stethoscope (听诊器) does when it carries faint noises from a patient"s chest to a doctor"s ear. This focusing is the main reason that even relatively weak sounds in the ocean, especially low-frequency ones, can often travel thousands of miles. | |||
| 1. The passage is chiefly about ____ . | |||
| A. an effort to protect an endangered marine species B. the civilian use of a military detection system C. the exposure of a U.S. Navy top-secret weapon D. a new way to look into the behavior of blue whales | |||
| 2. The underwater listening system was originally designed ____ . | |||
| A. to trace and locate enemy vessels B. to monitor deep-sea volcanic eruptions C. to study the movement of ocean currents D. to replace the global radio communications network | |||
| 3. The deep-sea listening system makes use of ____. | |||
| A. the sophisticated technology of focusing sounds under water B. the capability of sound to travel at high speed C. the unique property of layers of ocean water in transmitting sound D. low-frequency sounds traveling across different layers of water____ | |||
| 4. It can be inferred from the passage that____. | |||
| A. new radio devices should be developed for tracking the endangered blue whales B. blue whales are no longer endangered with the use of the new listening system C. opinions differ as to whether civilian scientists should be allowed to use military technology D. military technology has great potential in civilian use | |||
| 5. Which of the following is true about the U.S. Navy underwater listening network? | |||
| A. It is now partly accessible to civilian scientists. B. It has been replaced by a more advanced system. C. It became useless to the military after the cold war. D. It is indispensable in protecting endangered species. | |||
| 阅读理解。 | |||
| Believe it or not, in the near future people won"t just wear a chicken feather suit at Halloween or for fancy dress. Chickens, which have long provided food for dinner, will also be used to make our clothes as well. Last Monday, a report by the University of Nebraska in the US said in the future it should be possible to use chicken feathers and rice straw to make clothes. "All those wasted agriculture products don"t have to be wasted anymore," researcher Yiqi Yang said. New technology will change these by-products into something similar to wool, linen, or cotton. Because producing synthetic fabrics (合成纤维) causes pollution, scientists wanted to find a cheaper and environmentally friendly replacement. They turned their eyes to the millions of tons of rice straw and chicken feathers that are widely and cheaply available worldwide. Moreover they don"t cause pollution like petroleum-based fibers (石油合成纤维). Chicken feathers are mostly made up of the same kind of protein found in wool. A sweater made from chicken feathers would feel just like a wool sweater. It would be lighter in weight and warmer, too. According to Yang and his team, rice straw, on the other hand, can produce a fabric that looks and feels similar to cotton or linen. The process is also environmentally friendly. The total production cost of rice fiber is about 50 cents per pound, while cotton now sells for about 60 cents a pound. Maybe some day in the future you will wear fabulous clothes like these. | |||
| 1. Which of the following is true according to the passage? | |||
| A. In the past, chicken feathers and rice straw were not very cheaply available. B. At present, chicken feathers and rice straw are useless for producing synthetic fabrics. C.The environmentally friendly products will take the place of the non-environmentally friendly ones. D. Scientists have not made any progress in the environmentally friendly products. | |||
| 2. What are the main advantage of the new clothes made of chicken feathers and rice straw? | |||
| A. They are mostly made up of the same kind of protein found in wool. B. The clothes will be widely used in every field in our daily life. C. The process of producing the clothes does not cheap at all. D. A sweater made of the new clothes would be lighter in weight and warmer. | |||
| 3. The underlined part "fabulous" in the last Paragraph probably means " ". | |||
| A. heavy B. incredible C. awful D. ridiculous |