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Recently, scientists have developed a wireless brainmachine interface that help restore communication to people who can no longer speak by reading brainwaves using electrodes(电极) stuck on their heads. Unfortunately, these have proved very slow, at roughly one word typed per minute, making normal conversations and social interactions virtually impossible.
Scientist Frank Guenther and his colleagues reveal a brainmachine interface that uses electrodes implanted directly into the brain for research into real time speech.
"It should soon be possible for extremely paralysed individuals who are incapable of speaking to produce speech through a laptop computer, " said Guenther.
The scientists worked with a 26-year- old male volunteer who experience near-total paralysis due to a stroke he suffered when he was 16. They implanted an electrode that had two wires into a part of the brain that help plan and execute movements related to speech. The electrode recorded brain signals when the volunteer attempted to talk and the wires spread them across the scalp(头皮)to help drive a speech synthesizer (合成器). The delay between brain activity and sound output was just 50 milliseconds on average, roughly the same with regular speech.
"He was quite excited, particularly on the first few days we used the system, as he got used to its properties, " Guenther recalled." I am sure the work proceeds slowly from his perspective, as it does from ours. Nonetheless, he was very excited about getting real-time audio feedback of his intended speech and happy to work very hard with us throughout the experiments."
"The current system uses data from just two wires. Within a year it will be possible to implant a system with 16 times as many." Guenther said." This will allow us to tap into neurons(神经元),which in the end means better control over a synthesizer and thus better speech."
小题1:In the study of Guenther, electrodes are _______.
A.fixed on the heads B.put into the heads
C.tied to the headsD.separated from the heads
小题2:   The underlined word "them" in Paragraph 4 refers to _______.
A.movementsB.wiresC.brain signals D.Scientists
小题3:   What might be the best title for the passage?
A. Wireless Device Are Used to Read Words in the Brain.
B. New Equipment Helps you read others’ mind.
C. Virtual tongue can make you speak fluently.
It is no secret what you are thinking in mind.
小题1:B小题1:C小题1:A
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A.deskB.wallC.chalkboardD.door
小题2:
A.dutyB.deskC.mindD.level
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A.startedB.endedC.warnedD.reminded
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A.greatnessB.wealthC.honorD.failure
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A.preparedB.forcedC.attractedD.tempted
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A.properB.exactC.legalD.true
小题11:
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A.whatB.whenC.whyD.how
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A.surviveB.happenC.gainD.win
小题16:
A.adventurousB.activeC.readyD.intelligent
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A.prepareB.enjoyC.imagineD.conduct
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A.hand B.welcomeC.hugD.gift
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A.noseB.faceC.throatD.eyes
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A.loseB.failC.dieD.disappoint
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A.closingB.closeC.closedD.closely
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A.latelyB.lateC.deeplyD.deep
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B.many “short sleepers” are obliged to reduce sleep time by work
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D.sleep is the best way to deal with psychological troubles
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These striking similarities between animal and human behavior have led some to ask a question: “If you believe in evolution, how can’t you believe that animals have feelings that human  beings have?”
Until recently, scientists believed that animals behaved by instinct and that what appeared to be learned behavior was merely genetically-programmed activity.But as Koko the Gorilla shows, this is not the case.In fact, learning is passed from parent to offspring far more often than not in the animal kingdom.
So what implications does this knowledge have for humans? Because of this, should we ban hunting and animal testing? Should we close zoos? Such questions are being raised by many academics and politicians.Harvard and 25 other American law schools have introduced courses on animal rights.Germany meanwhile, recently guaranteed animal rights in its constitution---the first country to do so.
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A.they are international big companies.
B.they love animals.
C.they are pressured by animal right groups.
D.they earn a large amount of money and want to do some good deeds.
小题2:The research on pigs at Purdue University shows that______
A.pigs love being alone.
B.pigs easily become physically ill.
C.pigs need affection.
D.pigs don’t like to play with each other.
小题3:Which of the following statements is NOT true?
A.Animals behave by instinct.
B.Animals have self-awareness.
C.Animals have feelings and love.
D.Animals do not have language skills.
小题4:Should we ban hunting and animal testing?
A.Yes.
B.No
C.Not certain
D.Not mentioned

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