Since the Internet came into homes, the daily life has never been the same again. But the thing that worries most of us is that we can get viruses from the Internet. But can we catch viruses on our cell phones? A new study in the journal Science says yes, but the spread of such mobile software that can bring harm to our cell phones won’t reach dangerous levels until more cell phones are on the same operating system.
Computers are easily attacked by viruses because they share data, especially over the Internet. Of course, nowadays, more people are using their cell phones more and more frequently. They use them for emailing, text messaging and downloading troublesome ring tones, etc.,so it is obvious that cell phone viruses are a threat as well.
Scientists used nameless call data from more than six million cell phone users to help model a possible outbreak. And they concluded that viruses that spread from phone to phone by Bluetooth are not much concerned, because users have to be in close physical relation for their phones to “see” one another. However, viruses that spread through multimedia messaging services can move much faster, because they can come in disguise（伪装）, such as a cool tune sent by a friend. The good news is that to be effective, these viruses need their victims(受害人) to all use the same operating system, which not enough of us do. Because there is no Microsoft operating system for mobile phones, yet. Thank goodness.What is the passage mainly about?
| A．The operating system of cell phones. |
| B．The threat of cell phone viruses. |
| C．The wide use of cell phones. |
| D．Computer viruses. |
When ______, cell phone viruses can be dangerous.
| A．all the cell phones work on the same operating system |
| B．Microsoft operating system for cell phones is created |
| C．users can see each other on the phones |
| D．Bluetooth is widely used |
What can we infer about Bluetooth according to the scientists?
| A．It can increase the chances of cell phone viruses greatly. |
| B．It can help us to stop the spreading of cell phone viruses. |
| C．It won’t possibly cause the outbreak of cell phone viruses. |
| D．It can make users have close physical relation with one another. |
We can learn from the passage that ______.
| A．it is impossible to catch viruses on our cell phones |
| B．cell phones are not well connected with the Internet |
| C．it is dangerous for people to download ring tones to cell phones |
| D．more than one operating system is used for cell phones now |
Home to me means a sense of familiarity and nostalgia（怀旧）. It’s fun to come home. It looks the same. It smells the same. You’ll realize what’s changed is you. Home is where we can remember pain, love and some other experiences: We parted here; My parents met here; I won three championships here.
If I close my eyes, I can still have a clear picture in mind of my first home. I walk in the door and see a brown sofa surrounding a low glass-top wooden table. To the right of the living room is my first bedroom. It’s empty, but it’s where my earliest memories are.
There is the dining room table where I celebrated birthdays and where I cried on Halloween---when I didn’t want to wear the skirt my mother made for me. I always liked standing on that table because it made me feel tall and strong. If I sit at this table, I can see my favorite room in the house, my parents’ room. It is simple: a brown wooden dresser lines the right side of the wall next to a television and a couple of photos of my grandparents on each side. Their bed is my safe zone(区域). I can jump on it anytime---waking up my parents if I am scared or if I have an important announcement that cannot wait until the morning.
I’m lucky because I know my first home still exists. It exists in my mind and heart, on a physical property（住宅）on West 64th street on the western edge of Los Angeles. It is proof I lived, I grew, and I learned.
Sometimes when I feel lost, I lie down and shut my eyes, and I go home. I know it’s where I’ll find my family, my dogs, and my belongings. I purposely leave the window open at night because I know I’ll be blamed by Mom. But I don’t mind, because I want to hear her say my name, which reminds me I’m home.Why does the author call her parents’ bed her “safe zone”（Paragraph 3）?
| A．It is her favorite place to play. |
| B．Her needs can be satisfied there. |
| C．Her grandparents’ photos are lined on each side. |
| D．Her parents always play together with her there. |
What can be learned from the passage?
| A．The old furniture is still in the authors first bedroom. |
| B．The author can still visit her first physical home in Los Angeles. |
| C．The authors favorite room in her first home is the dining room. |
| D．Many people of the authors age can still find their first physical homes. |
Sometimes when she feels lost, the author will_________.
| A．open the window at night |
| B．lie down in bed to have a dream |
| C．try to bring back a sense of home |
| D．go to Los Angeles to visit her mom |
What is the authors purpose of writing this passage?
| A．To express how much she is attached to her home. |
| B．To declare how much she loves her first house. |
| C．To describe the state of her family. |
| D．To look back on her childhood. |
Since the 1970s, scientists have been searching for ways to link the brain with computers. Brain-computer interface (BCI) technology could help people with disabilities send orders to machines.
Recently, two researchers, Jose Millan and Michele Tavella from the Federal Polytechnic School in Lausanne, Switzerland, showed 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 wheelchair and guided it with his thoughts.
“Our brain has billions of nerve cells(神经细胞). These send signals through the spinal cord (脊髓)to the muscles(肌肉) 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 outside world and also to control the machine.”
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 understands the signals and directs the motorized wheelchair. The wheelchair also has two cameras that recognize objects in its path. They help the computer react to orders from the brain.
Prof. Millan, the team leader, says scientists keep improving the computer software that understands brain signals and turns them into simple orders. “The practical possibilities that BCI technology offers to disabled people can be divided into two kinds: communication, and controlling the machine. 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 ensure that they can use the technology over long periods of time.How did Tavella operate the wheelchair in the laboratory?
| A．By controlling his muscles. |
| B．By talking to the machine. |
| C．By moving his hand. |
| D．By using his mind. |
Which of the following shows the path of the signals described in Paragraph 5?
| A．scalp → computer → cap →wheelchair |
| B．computer → cap → scalp →wheelchair |
| C．scalp → cap → computer →wheelchair |
| D．cap → computer → scalp →wheelchair |
The team will test with real patients to ______.
| A．make profits from them |
| B．prove the technology useful to them |
| C．make them live longer |
| D．learn about their physical condition |
Which of the following would be the best title for the text?
| 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．Computer Technology Could Help to Cure Brain Injuries |
If you are in a crowd, a first and most important thing is to make yourself familiar with your surroundings(周围的事物) and mentally notice alternate exits. No matter where you are, make sure you always know how to get out.
Make sure you know the type of ground you are standing on. For example, in a crowd of moving people wet ground can be dangerous, causing you to fall. You should know the general atmosphere of the event, as panic situations can often be predicted. When in danger, a few seconds can make all the difference, giving you the possibility of taking advantage of your escape route. Always stay closer to the escape route
If you find yourself in the middle of a moving crowd, do not fight against the pressure, do not stand still or sit down, because you could easily get injured or even be killed by being stepped on by other people. Instead, move in the same direction of the crowd; take advantage of any space that may open up to move sideways to the crowd movement where the flow is weaker. Keep your hands up by your chest, which will protect your chest during the movement.
If you fall, get up quickly. If you can’t get up because you are injured, get someone to pull you back up. If you fall and can not get up, keep moving by crawling(爬行)in the same direction of the crowd. Do not lie on your stomach or back, as this is dangerous for your body.
The worst situation is to be pushed by the crowd against an immovable object. Try to shun
High walls, as the crowd pressure can build up rapidly. After you’re pushed forward, the way you move is on a diagonal(斜线). There’s always space between people. You work your way out that way till you get out of the crowd. When you are in a crowd the first thing you do is ____.
| A．fight against the pressure |
| B．stay closer to an immovable object |
| C．move in the same direction of the crowd |
| D．be familiar with the surroundings |
When you are in the middle of a moving crowd, ____.
| A．you must go to the exit quickly |
| B．you must not stand still or sit down |
| C．you’d better stop moving forward |
| D．you should push your way out |
The underlined word “shun” in the last paragraph probably means ____.
| A．leave for | B．keep off |
| C．jump on | D．break down |
What is the main idea of the passage?
| A．How to survive the rush crowd |
| B．How to enjoy yourself in a crowd |
| C．How to protect yourself outside |
| D．How to run away from people |
In American schools there is something called Homecoming Day. Many high schools and colleges with a football team have a homecoming game. This can be the most important event of the year except graduation or commencement (毕业典礼)Day. Students plan Homecoming Day many weeks in advance.
Several days before Homecoming, students start to decorate the school. There are signs to wish luck to the team, and many other signs to welcome all the graduates. Many people still come to Homecoming twenty or thirty years after their graduation.
The members of school clubs build booths(售货棚) and sell lemonade(柠檬汽水)，apples and sandwiches. Some clubs help to welcome visitors.
During the day alumni and their wives will gather at the school. They like to look for teachers that they remember. Often they see old friends and they talk together about those happy years in school.
Everyone soon comes to watch the football game. When the game is half over, the band comes onto the field and plays school songs. Another important moment is when the Homecoming Queen or King appears. All the students vote the most popular student Homecoming Queen or King. It is a great honor to be chosen.
Homecoming is a happy day, but it is not perfect unless the football team wins the game. Even if the game loses, the students still enjoy Homecoming. Some stay at the school to dance, and others go to a party. For everyone it is a day worth remembering. The best title of this passage is ________.
| A．American School | B．Homecoming Day |
| C．Homecoming Queen or King | D．Homecoming Game |
Which of the following is NOT done on Homecoming?
| A．To see old friends. |
| B．To call on teachers they remember. |
| C．To watch the football game. |
| D．To organize clubs. |
The underlined word “ alumni” refers to ________.
| A．male former students of a school or college |
| B．female former students of a school or college |
| C．grandfathers of the students in a school or college |
| D．grandmothers of the students in a school or college |
It was 6 p. m. on 24 January 2001, the first day of Chinese New Year. As I drove along the road, a small car flew across the centre double amber lines(双黄线) from the ____ direction and crashed into my car head-on. I was ____ and was awakened by the ringing of my mobile phone. It was a travel agent, asking me ____ I had arrived at the Mandarin Oriental for my work.
I was ____ to Kuala Lumpur General Hospital. But the hospital staff was too ____to attend to me, so I called a friend and told him about the ____. Some friends arrived very soon after and sent me to a private hospital nearby.
I was given ten months’ medical leave and then I was ____. My heart ____, knowing that it meant I couldn’t work. As a tour guide and tour leader, I only got paid if I took on more work. I felt completely ____, but a lot of unexpected blessings came my way. Friends and relatives ____ me with my banking, insurance or simply came to cheer me up.
But I was only 30, and wanted to see the world. When the casts were removed, I did not let the sight of my weak legs ____ me. I worked hard at my physiotherapy(物理疗法) with only one aim: I must ____ again. ____five months of tiring therapy up to three sessions a week, I was back on my feet. After eight months, I was walking ____ the aid of walking stick. By February the following year, I ____ my job again.
The accident made me____ how lives can change in a split second. I recall the Chinese family drove me to the hospital ____ my bloodied condition on Chinese New Year. The kindness I’ve experienced taught me never to ____ hope. I value life ____ , not only my own but also everyone I know, and will always try to help when I know of someone ____.
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