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.
1. BCI is a technology that can ________.
| 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 |
| A．By controlling his muscles. |
| B．By talking to the machine. |
| C．By moving his hand. |
| D．By using his mind. |
| A．scalp→computer→cap→wheelchair |
| B．computer→cap→scalp→wheelchair |
| C．scalp→cap→computer→wheelchair |
| D．cap→computer→scalp→wheelchair |
| A．make profits from them |
| B．prove the technology useful to them |
| C．make them live longer |
| D．learn about their physical condition |
| 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 |
2 . Early February, I was flying up to Ohio. Well prepared, I had everything in my favour—fuel for five hours, charts in order, my flight plan on my lap, and a beautiful clear sky.
I was wrong.
I had heard about Alberta Clippers coming out of Canada. I knew all about them―how an entire air mass was streaming along at over sixty miles an hour.
That morning, the Weather Briefer informed me that an Alberta Clipper was going over Chicago about the time I got to the airport. Chicago was some 400 miles from my destination—not a factor, or so I thought. That was the first hint I missed.
The controller called and asked if I wanted to adjust my flight plan. I did the check and everything was in the green. So I told him no. Twenty minutes later the controller called again asking whether I wanted to adjust my flight plan. I checked everything. All was fine. I ignored that hint. I was fooled by the smooth air and limited experience with a rapidly moving air mass that was not changing violently. The Alberta Clipper was clipping along.
The first blast of turbulence（气流）struck my plane. I got slammed into the roof, and then slammed sideways hitting the window with such force up my nose that I started bleeding.
After a 2-hour flight of 100 miles, I realized fuel was now an issue. So was landing. I called Flight Following. We figured out the airport I could land.
The engine stopped. So did my heart. There is no quiet as quietly stunning as this one at such an altitude. I had run out of fuel in the left tank, and only a little in my right tank. The engine quit for a second time. I declared an emergency. I was told that I might get another few minutes of fuel if I gently banked the airplane. Luckily, it worked. Then, the engine quit for the last time. I was a glider now. I made a long lazy spiral descent. Down I went. I stopped at the very end of the runway.
I made so many mistakes, missed so many clues, and showed my ignorance so much that I beat myself up over and over again in my mind. I learned textbook descriptions of Alberta Clippers and real-life experience with one are totally different. I will never forget the sound of that silence.
I flew home the next day. Older. Wiser. Humbler. Lucky.
1. We can know from the passage that Alberta Clippers ______.| A．can bring snowstorms |
| B．are quick-moving air masses |
| C．are violently changing air pressure |
| D．can lead to a sudden temperature drop |
| A．His lack of flying experience. |
| B．His poor preparation for the journey. |
| C．His misjudgement about the air mass. |
| D．His overconfidence in his piloting skills. |
a. I declared an emergency.
b. My airplane was running out of fuel.
c. I insisted on carrying on my flight plan.
d. I was thrown to the roof by the violent air mass.
e. I slightly banked my airplane and made a landing.
| A．dcbea | B．dceba |
| C．cdabe | D．cdbae |
| A．a rewarding training | B．a narrow escape |
| C．a painful exploration | D．a serious accident |
3 . It is difficult for doctors to help a person with a damaged brain. Without enough blood, the brain lives for only three to five minutes. More often the doctors can’t fix the damage. Sometimes they are afraid to try something to help because it is dangerous to work on the brain. The doctors might make the person worse if he operates on the brain.
Dr. Robert White, a famous professor and doctor, thinks he knows a way to help. He thinks doctors should make the brain very cold. If it is very cold, the brain can live without blood for 30 minutes. This gives the doctor a longer time to do something for the brain.
Dr. White tried his idea on 13 monkeys. First he taught them to do different jobs, then he operated on them. He made the monkeys’ blood back to the monkeys’ brains. When the brain’s temperature was 10℃, Dr. White stopped the blood to the brain.After 30 minutes he turned the blood back on. He warmed the blood again. After their operations the monkeys were like they had been before. They were healthy and busy. Each one could still do the jobs the doctor had taught them.
1. The brain operation was made possible mainly by ____.| A．taking the blood out of the brain | B．trying the operation on monkeys first |
| C．having the blood go through a machine | D．lowering the brain’s temperature |
| A．can last as long as 30 minutes | B．can keep the brain’s blood warm |
| C．can keep the patient’s brain healthy | D．can help monkeys do different jobs |
a. send the cooled back to the brain b. stop the blood to the brain
c. have the blood cooled down d. operate on the brain
| A．a, b, c, d | B．c, a, b, d | C．c, b, d, a | D．b, c, d, a |
Nike
In the Greek myth, Nike is the goddess of victory and the source of inspiration for soldiers. This logo represents the wing in the famous statue of the Greek goddess. Nike’s logo was designed by Carolyn Davidson in 1971 for $35, and was registered as a trademark in 1995.
McDonald’s
The logo was designed in 1962 by Jim Schindler to resemble the archshaped(拱形的) signs on the side of the company’s then walk-up hamburger stand. Later on, the two golden arches were combined together to form the M. The McDonald’s name was added to the logo in 1968.
Apple
There are different stories behind Apple’s logo. The first logo was a reference to the religious story of Adam and Eve, in which the apple represented the fruit of the Tree of Knowledge. One year later, the second logo was designed in 1977 by Steve Jobs and Ronald Wayne, and it described Sir Isaac Newton sitting under an apple tree. This logo didn’t stay long. One year later it was replaced almost immediately by graphic designer Rob Janoff’s “rainbow apple”, a rainbow-colored silhouette(轮廓) of an apple with a bite taken out of it. And then the rainbow-colored apple was replaced by the one-colored logo in 1998. It has not been changed so far.
Mercedes Benz
The Mercedes Benz logo, which was originally created by Gottlieb Daimler in 1909, consists of a simple description of a three-pointed star that represents its rule of the land, the sea and the air. The company was founded by Gottlieb Daimler and Wilhelm Maybach. Mercedes is the name of Maybach’s elder daughter, while Benz came as a result of a combination with Benz, Cie and DMG in 1926.
Adidas
The Adidas logo, which was created by the founder of the company Adi Dassler, represents mountains, pointing towards the challenges that are seen ahead and goals that can be achieved. The logo was used for the first time in 1967.
1. What does the author think of the stories of the great logos?
| A．They are boring. | B．They are out of date. |
| C．They are attractive. | D．They are practical. |
| A．The goddess of victory. |
| B．The source of inspiration for soldiers. |
| C．The statue of the Greek goddess. |
| D．The wing of the Greek goddess. |
| A．the religious story of Adam and Eve |
| B．a bitten apple with only one color |
| C．Newton’s sitting under an apple tree |
| D．the rainbow-colored bitten apple |
| A．Nike’s logo | B．Apple’s logo |
| C．The Mercedes logo | D．The Adidas logo |
| A．Mercedes Benz –McDonald’s – Nike – Apple. |
| B．Nike – McDonald’s – Apple – Mercedes Benz. |
| C．McDonald’s – Apple – Nike – Mercedes Benz. |
| D．Nike – Mercedes Benz – McDonald’s – Apple. |
5 . I once heard this tale in India, where it is told as if true—though any naturalist would know it couldn’t be. The country is India. A colonial official and his wife are giving a large dinner party. They invite army officers and their wives, and a visiting American naturalist.
A spirited discussion springs up between a young girl who says women are no longer the jumping on a chair at the sight of a mouse and an army officer who disagrees and says, “A woman’s reaction in any crisis is to scream. And a man has more control than a woman.”
The American scientist does not join in the argument but sits and watches the faces of the other guests. As he stares, he sees a slight strange expression come over the face of the hostess. She gestures to the servant standing behind her chair and whispers to him. The servant’s eyes widen. He turns quickly and leaves the room. Of the guests, none except the American notices this or sees the servant place a bowl of milk on the balcony just outside the open glass doors.
In India, milk in a bowl means only one thing: bait (诱饵) for a snake. The American understands there must be a snake in the room. His eyes move across the room but see nothing. He realizes the snake can only be in one place — under the table.
His first reaction is to jump back and warn the others. But he knows any sudden movement will frighten the animal into striking. He speaks quickly, the tone of his voice so arresting that it quietens everyone. “I want to know what control everyone here has. I will count three hundred—that’s five minutes — and not one of you is to move a muscle. Ready!”
The 20 people sit like stone images while he counts. He is saying, “—two hundred and eighty—” When out of the corner of his eyes, he sees the snake make for the bowl of milk. Four or five screams ring out as he jumps to close the balcony doors.
“There is your proof!” the host shouts. “A man has just shown us perfect self-control.”
“Just a minute,” the American says, turning to his hostess, “How did you know that snake was in the room?” With a faint smile coming across her face she replies: “Because it was lying across my foot.”
1. What can we conclude from the passage?| A．Women are afraid of mice. |
| B．The army officer’s opinion is wrong. |
| C．The American suggests playing a game for entertainment. |
| D．The hostess has had previous experience catching snakes. |
a. The American’s eyes sweep the room but he sees nothing.
b. The American suggests the guests playing a game.
c. Following the instructions, the servant puts out some milk.
d. The hostess is staring ahead, a slight strange look appearing.
e. The American shuts the balcony doors safely, and several screams are let out.
f. The snake edges its way to the bowl of milk.
| A．d,c,a,b,f,e | B．a,b,c,e,f,d |
| C．d,f,a,b,c,c | D．f,e,c,a,d,b |
| A．The American. | B．The army officer. |
| C．The girl. | D．The hostess. |
| A．A Heated Argument | B．A Striking Dinner Party |
| C．An Unbelievable Story | D．A Smart Hostess |
On Thanksgiving weekend, the Heffelmire family gathered for a meal at their home. After dinner, the family went down to the finished basement to relax except Charlotte’s father, Eric, who was in the garage to fix his truck．
Around 8 p.m., Charlotte decided to check on her dad. She walked through the kitchen. When she opened the side door to the garage, black smoke rose up into the kitchen. She could barely make out her father lying on his back, trapped under the truck. He’d removed the front passenger-side tyre and raised the truck on a jack（千斤顶）. The truck had slipped off the jack, and now the whole weight of the wheel was on his chest and shoulders．
Charlotte ran to the front of the truck and struggled to lift it. Eric was still conscious, and he yelled, “You got it! One more try!” She tried again and was able to tip the truck backward just enough for her to pull her dad by the shirt with both hands from under the truck．
She dragged him across the garage and 20 feet down the driveway. Then she ran back to the garage, which had burst into flames. “I was afraid the car was going to explode,” says Charlotte, so she climbed into the truck, which faced forward, turned the key, and pressed the gas pedal（油门）. The car slowly rolled out, the metal wheel scratching loudly against the concrete．
Safely on the driveway, Charlotte stopped the truck and ran back to the basement. “There’s a fire! Everybody get out!” she yelled as she picked up her three-month-old niece and ran out. Outside, she handed the baby to her mom, and then ran around to the burning garage. She picked up a garden hose（水管）and sprayed the fire while calling 911．
A few minutes later, firefighters and an ambulance arrived. Charlotte was treated for second-degree burns on both her feet and face. Her dad had injuries on his chest and shoulders, as well as minor burns on his face. The garage and the house were damaged but the family survived．
The Heffelmires are staying in an apartment while their house is rebuilt. “Charlotte is a remarkable kid,” says her dad. Charlotte, however, simply says, “ I was saving my family and my house. I wasn’t going to let my dad die.”
1. Eric got trapped because_________| A．the truck slipped off the jack. |
| B．the wheel fell off the truck. |
| C．the front tyre was removed. |
| D．the kitchen was on fire. |
a. Charlotte called the firefighters．
b. Charlotte saved Eric from under the truck．
c. Charlotte drove the truck out of the garage．
d. Charlotte warned the family to leave the house．
| A．b, c, a, d | B．a, b, d, c |
| C．b, c, d, a | D．a, c, b, d |
| A．the house was not fit to live in. |
| B．the truck exploded. |
| C．the three-month-old baby was injured. |
| D．Charlotte was burned on her chest and shoulders. |
| A．proud and clear-headed. |
| B．calm and quick-minded. |
| C．modest and easy-going. |
| D．independent and self-centered. |
