题目内容

As days went on, my parents' _______ grey.

A.
hairs were turning
B.
hairs were going
C.
hair was turning
D.
hair was coming

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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."

In the study of Guenther, electrodes are _______.

fixed on the heads B. put into the heads

C. tied to the heads D. separated from the heads

The underlined word "them" in Paragraph 4 refers to _______.

movements B. wires C. brain signals D. Scientists

What might be the best title for the passage?

Wireless Device Are Used to Read Words in the Brain.

New Equipment Helps you read others’ mind.

Virtual tongue can make you speak fluently.

It is no secret what you are thinking in mind.

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 heads	D．separated from the heads

【小题2】 The underlined word "them" in Paragraph 4 refers to _______.

【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.

Once upon a time in a land far away, there was a wonderful old man who loved everything：animals, spiders, insects．

One day while walking through the woods, the nice old man found a cocoon（茧）of a butterfly．He took it home．A few days later, a small opening appeared; he sat and watched the butterfly for several hours as it struggled to force its body through that little hole．Then it seemed to stop making any progress．It appeared as if it had gotten as far as it could and it could go no farther．Then the man decided to help the butterfly, so he took a pair of scissors and cut off the remaining bit of the cocoon．

The butterfly then appeared easily．

But it had a swollen body and small, fragile wings．The man continued to watch the butterfly because he expected that, at any moment, the wings would enlarge and expand to be able to support the body, which would be smaller in time．Neither happened! In fact, the butterfly spent the rest of its life crawling （慢慢爬行）around with a swollen body and fragile wings．

It never was able to fly．

What the man in his kindness and hurry did not understand was that the limited cocoon and the struggle required for the butterfly to get through the tiny opening were Nature's way of forcing fluid from the body of the butterfly into its wings so that it would be ready for flight once it achieved its freedom from the cocoon．

Sometimes struggles are exactly what we need in our life．If we were allowed to go through our life without any obstacles and difficulties, it would disable us．We would not be as strong as what we could have been．And we could never fly．

1.The butterfly could never fly because _______________．

A．it was too fat and strong．

B．it loved crawling around．

C．it got out of the cocoon easily．

D．it didn’t get through the cocoon．

2.The text is most likely to be found in a book about_______________．

A．popular science B．humorous stories．

C．successful people D．philosophy events

3.What is the implied meaning of the passage?

A．Life without any obstacles and difficulties is perfect．

B．Obstacles and difficulties contribute to success．

C．Never help a butterfly to get out of the cocoon．

D．A butterfly can never fly without going through the cocoon

When my brother and I were young, my mom would take us on Transportation Days.

It goes like this: You can’t take any means of transportation more than once. We would start from home, walking two blocks(街区) to the rail station. We’d take the train into the city center, then a bus, switching to the tram, then maybe a taxi. We always considered taking a horse carriage in the historic district, but we didn’t like the way the horses were treated, so we never did. At the end of the day, we took the subway to our closest station, where Mom’s friend was waiting to give us a ride home—our first car ride of the day.

The good thing about Transportation Days is not only that Mom taught us how to get around. She was born to be multimodal (多方式的). She understood that depending on cars only was a failure of imagination and, above all, a failure of confidence—the product of a childhood not spent exploring subway tunnels.

Once you learn the route map and step with certainty over the gap between the train and the platform, nothing is frightening anymore. New cities are just light-rail lines to be explored. And your personal car, if you have one, becomes just one more tool in the toolbox—and often an inadequate(不适当的) one, limiting both your mobility and your wallet.

On Transportation Days, we might stop for lunch on Chestnut Street or buy a new book or toy, but the transportation was the point. First, it was exciting enough to watch the world speed by from the train window. As I got older, my mom helped me unlock the mysteries that would otherwise have paralyzed my first attempts to do it myself: How do I know where to get off? How do I know how much it costs? How do I know when I need tickets, and where to get them? What track, what line, which direction, where’s the stop, and will I get wet when we go under the river?

I’m writing this right now on an airplane, a means we didn’t try on our Transportation Days and, we now know, the dirtiest and most polluting of them all. My flight routed me through Philadelphia. My multimodal mom met me for dinner in the airport. She took a train to meet me.

1.Which was forbidden by Mom on Transportation Days?

A．Having a car ride.

B．Taking the train twice.

C．Buying more than one toy.

D．Touring the historic district.

2.According to the writer, what was the greatest benefit of her Transportation Days?

A．Building confidence in herself.

B．Reducing her use of private cars.

C．Developing her sense of direction.

D．Giving her knowledge about vehicles.

3.The underlined word “paralyzed” (in Para. 5) is closest in meaning to “_______”.

A．displayed

B．Justified

C．Ignored

D．destroyecl

4.Which means of transportation does the writer probably have a dislike of?

A．Subway.

B．Airplane.

C．Tram.

D．Car.

People have been painting pictures for at least 30,000 years. The earliest pictures were painted by people who hunted animals.They used to paint pictures of the animals they wanted to catch and kill.Pictures of this kind have been found on the walls of caves in France and Spain.No one knows why they were painted there.Perhaps the painters thought that their pictures would help them to catch these animals.Or perhaps human beings have always wanted to tell stories in pictures.

About 5,000 years ago,the Egyptians and other people in the Near East began to use pictures as kind of writing. They drew simple pictures or signs to represent things and ideas, and also to represrnt the sounds of their language. The signs these people used became a kind of alphabet.

The Egyptians used to record information and to tell stories by putting picture-writing and pictures together. When an important person died ,scenes and stories from his life were painted and carved on the walls of the place where he was buried. Some of these pictures are like modern comic strip stories.It has been said that Egypt is the home of the comic strip .But , for the Egyptians, pictures still had magic power. So they did not try to make their way of writing simple.The ordinary people could not understand it.

By the year 1,000 BC,people who lived in the area around the Mediterranean Sea had developed a simpler system of writing . The signs they used were very easy to write, and there were fewer of them than in the Egyptian system . This was because each sign , or letter, represented only one sound in their language.The Greeks developed this system and formed the letters of the Greek alphabet. The Romans copied the idea, and the Roman alphabet is now used all over the world.

These days ,we can write down a story ,or record information, without using pictures.But we still need pictures of all kinds: drawing , photographs, signs and diagrams. We find them everywhere: in books and newspapers, in the street, and on the walls of the places where we live and work. Pictures help us to understand and remember things more easily ,and they can make a story much more interesting.

1.Pictures of animals were painted on the walls of caves in France and Spain because_________.

A. the hunters wanted to see the pictures

B. the painters were animal lovers

C. the painters wanted to show imagination

D. the pictures were thought to be helpful

2. The Greek alphabed was simpler than the Egyptian system for all the following reasons EXCEPT that__________.

A. the former was easy to write

B. there were fewer signs in the former

C. the former was easy to pronounce

D.each sign stood for only one sound

3. Which of the following statements is TRUE?

A. The Egyptian signs later became a particular alphabet.

B. The Egyptians liked to write comic-strip stories.

C. The Roman alphabet was developed from the Egyptian one.

D. The Greeks copied their writing system from the Egyptians.

4. In the last paragraph, the author thinks that pictures_______.

A. should be made comprehensible.

B. should be made interesting.

C. are of much use in our life.

D. have disappeared from our life.

As days went on, my parents' _______ grey.

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