A new smart phone system under development can locate you even when you’re inside a building, which GPS can't do. While the concept sounds powerful, it’s not yet clear how practical it might be.
The set-up, called SurroundSense, sends information from cameras and microphones—gear in the latest smart phones—to a server that produces a fingerprint of the location.
“You can’t tell much from any of the measurements individually, but when combined, the optical (光学的), acoustic (声学的) and motion information creates a unique fingerprint of the space,” said Ionut Constandache, a student in computer science.
The system distinguishes between two indoor spaces in this manner: It knows that a bar is likely to be dark and noisy and people move little, sit a lot, whereas a department store will be brightly lit, contain vibrant colors, and will see a lot of people moving up and down passages. The more the system is used, the more it learns about specific places.
More work is needed before the set-up would be ready for prime time, however. For now, it can’t work if a person’s cellphone is in a handbag or otherwise unable to employ the camera. Finally it would be best served if paired with phones that were worn on the wrist or hung around the neck. Batteries, too, are a problem.
Students on the research team went out across Durham, North Carolina, with their cellphones collecting data in different types of businesses. The students mirrored the actions of the selected customers so that they would not prejudice the measurements.
“We went to 51 different stores and found that SurroundSense achieved an average accuracy (精确性) of about 87 percent," Constandache said.
“As the system collects and analyzes more and more information about a particular site, the fingerprint becomes more precise,” said Romit Roy Choudhury, professor of computer engineering. “Not only is the ambience different at different locations, but also can be different at different time at the same location.”We can infer from the first paragraph that GPS .
| A．can find you wherever you are |
| B．can make too much loud noise |
| C．can only find outside things |
| D．isn’t really practical yet |
Why did students mirror the actions of the selected customers?
| A．To get a reasonable result. |
| B．To collect data in different ways. |
| C．To receive information about a particular site. |
| D．To learn more about specific places. |
The underlined word “ambience” in the last paragraph may mean .
| A．the fingerprint of the location |
| B．the character of a place |
| C．the existence of people |
| D．the area of store |
The main idea of the passage is about .
| A．comparing GPS with a smart cellphone |
| B．the development of cellphones |
| C．a cellphone knowing where you are |
| D．what kind of future cellphones face |
YANGON -- Myanmar has officially accepted an offer of the United States to send humanitarian aid (人道主义援助) to the country's cyclone (飓风;暴风) victims, state radio reported Friday in a night broadcast Myanmar Deputy Foreign Minister U Kyaw Thu gave the assurance Friday, saying that the country is receiving such relief aid from any country without limit at this time according to its policy of dealing with the disaster, the report said.
Kyaw Thu denied rumors about Myanmar's turning down of such relief materials from Western countries but accept those from nations in good relations with Myanmar, saying that the country has never done so in this case.
Kyaw Thu said that well wishers abroad may make cash donation（捐赠）through Myanmar embassies（使馆）stationed there, while those who like to donate relief goods may present at the Yangon International Airport and seaports.
According to the report, the US relief aid would arrive in Yangon in days.
A foreign ministry's statement said earlier on Friday that at this moment, the international community can best help the victims by donating emergency provisions such as medical supplies, food, cloth, electricity generator, and materials for emergency shelter or with financial assistance," adding that "Myanmar will wholeheartedly welcome such course of action".
The government and the people of Myanmar are grateful to the friendly nations,the United Nations,international organizations, non-governmental organizations, private individuals and others for their sympathy and generosity." it said. Which of the following is true?
| A．The US relief aid was turned down at first and then accepted. |
| B．The US relief aid has been sent to the capital city of Myanmar. |
| C．There are rumors（谣言）that Myanmar has turned down the US relief aid. |
| D．Myanmar will wholeheartedly welcome such course of action but the US relief aid. |
We Chinese may denote money to help the country's cyclone victims through_____.
| A．Myanmar embassies in Beijing. |
| B．the Yangon International Airport |
| C．the United Nations |
| D．the Yangon International seaports. |
What can the international community （组织）best help the victims in Myanmar?
| A．medical supplies |
| B．financial assistance |
| C．electricity generator |
| D．all of the above. |
The title that best expresses the idea of the passage is _______.
| A．How to help Myanmar. |
| B．Myanmar accepts US humanitarian aid officially. |
| C．Myanmar is receiving relief aid from any country without limit. |
| D．The government and the people of Myanmar are grateful. |
About twenty of us had been fortunate enough to receive invitations to a film-studio(影棚)to take part in a crowd-scene. Although our "act" would last only for a short time, we could see quite a number of interesting things.
We all stood at the far end of the studio as workmen prepared the scene, setting up trees at the edge of a winding path. Very soon, bright lights were turned on and the big movie-camera was wheeled into position. The director shouted something to the camera operator and then went to speak to the two famous actors nearby. Since it was hot in the studio, it came as a surprise to us to see one of the actors put on a heavy overcoat and start walking along the path. A big fan began blowing tiny white feathers down on him, and soon the trees were covered in "snow". Two more fans were turned on, and a "strong wind" blew through the trees. The picture looked so real that it made us feel cold.
The next scene was a complete contrast (对比). The way it was filmed was quite unusual. Pictures taken on an island in the Pacific were shown on a glass screen (幕). An actor and actress stood in front of the scene so that they looked as if they were at the water's edge on an island. By a simple trick like this, palm trees, sandy beaches, and blue, clear skies had been brought into the studio!
Since it was our turn next, we were left wondering what scene would be prepared for us. For a full three minutes in our lives we would be experiencing the excitement of being film "stars"! Who is the author?
| A．A cameraman. |
| B．A film director. |
| C．A crowd-scene actor. |
| D．A workman for scene setting. |
What made the author feel cold?
| A．The heavy snowfall. |
| B．The man-made scene. |
| C．The low temperature. |
| D．The film being shown. |
What would happen in the "three minutes" mentioned in the last paragraph?
| A．A new scene would be filmed. |
| B．More stars would act in the film. |
| C．The author would leave the studio. |
| D．The next scene would be prepared. |
Everyone becomes a little more forgetful as they get older, but men's minds decline more than women's, according to the results of a worldwide survey.
Certain differences seem to be inherent in male and female brains: Men are better at maintaining and dealing with mental images (useful in mathematical reasoning and spatial skills), while women tend to excel (擅长) at recalling information from their brain's files (helpful with language skills and remembering the locations of objects).
Many studies have looked for a connection between sex and the amount of mental decline (衰退) people experience as they age, but the results have been mixed.
Some studies found more age-related decline in men than in women, while others saw the opposite or even no relationship at all between sex and mental decline. Those results could be improper because the studies involved older people, and women live longer than men: The men tested are the survivors, "so they're the ones that may not have shown such cognitive decline," said study team leader Elizabeth of the University of Warwick in England.
People surveyed completed four tasks that tested sex-related cognitive skills: matching an object to its rotated form, matching lines shown from the same angle, typing as many words in a particular category (范畴) as possible in the given time, e.g. "object usually colored gray", and recalling the location of objects in a line drawing. The first two were tasks at which men usually excel; the latter are typically dominated by women.
Within each age group studied, men and women performed better in their separate categories on average. And though performance declined with age for both genders, women showed obviously less decline than men overall. The underlined word in the second paragraph means_________.
| A．natural |
| B．great |
| C．obvious |
| D．absolute |
Which of the following statements is true according the article?
| A．Men do better than women when it comes to learning English. |
| B．Women stand out at remembering people’s names. |
| C．Men excel at typing as many words in a particular category as possible in the given time. |
| D．Women excel at dealing mathematic problems. |
One important factor that affects the correctness of the results is that _________.
| A．the old men tested may not have shown such cognitive decline |
| B．people surveyed are all old |
| C．people taking part in this test came from all over the world |
| D．women live longer than men |
The author aims to tell us that __________.
| A．women’s minds perform better than men’s |
| B．men’s minds decline more with age |
| C．everyone becomes a little more forgetful as they get older |
| D．a survey on human’s mind decline was done recently |
Tokyo: The world’s oldest man, retired Japanese silkworm breeder（饲养员） Yukichi Chuganji, died in his home at the age of 114, on Monday. Family members found him dead on his mattress. Born on March 23, 1889, Chuganji worked as a silkworm breeder and bank employee after leaving school. He also served as a community welfare officer. He had been in good health, talking daily with his family members.
Washington: Every American dislikes people who talk on cell phones while driving, even those who do that kind of act. In the State of New Jersey, 84 percent of 968 cell phone owners said in recent telephone survey that they would support a state ban (禁令) on the use of cell phones while driving. However, 42 percent of cell phone owners also said they used the devices “very often” or “sometimes” while driving. Although most agree that the banning is good, only 38 percent believed such a ban would be easy to enforce(实施).
New York: A woman in the US who was being attacked by a dog said she was saved from further harm when her 13-year-old daughter distracted the dog by screaming “You want a piece of me?” and kicked it repeatedly in the head. Jane Howell said she and her daughter, Elizabeth, were taking a walk around the neighborhood on Saturday evening when they came across the big dog, unchained. The main idea of the second news is _____.
| A．most Americans don’t like cell phone |
| B．a ban on the use of cell phones has been made |
| C．few people use cell phones while driving |
| D．using cell phones while driving will be banned because most Americans don’t like it |
The three pieces of news are all about .
| A．science |
| B．daily life |
| C．sports |
| D．law |
The woman in the US ____.
| A．was not harmed by the dog |
| B．raised the dog, which attacked her later |
| C．was protected from being seriously hurt by her daughter |
| D．had escaped when her daughter was kicking the dog |
From the news we can infer ____.
| A．Chuganji was living alone when he died |
| B．the woman’s 13-year-old daughter was very brave |
| C．cell phones are not good devices |
| D．it’s easy to enforce the ban n the use of cell phones while driving |
下面文章中有5处（第1~5题）需要添加小标题，请从以下选项中选出符合各段意思的小标题，选项中一项为多余选项.
| A. Slow Down Your Life B. Escape Now and Then C. Separate Your Actions D. Allow Yourself to Be Weak E. Relieve Pressure by Firmly Saying " No" F. Stop Expecting Everything to Be Perfect |
How to Simplify Your Life
Less is more. This is why we say: reduce things by half instead of doubling them, get rid of junk instead of piling it up, relax instead of stressing, slow down instead of speeding up. Apply these principles in your everyday life in a conscious way. You will then find yourself well along on your journey to simplification.When you concentrate on one task, you find you have energy that you didn't even know you had. Just imagine: you are at a fair and you have to carry two heavy pigs over 100 yards. If you keep grabbing one and then the other, it will take forever, because one of them will keep slipping out from under your arm and running off. But if you tie one pig in a place, pick up the other, gather all your strength and make a dash for the finish line, pause for a moment, run bock and get the other one, and with great determination, carry the second pig to the finish line, then you can be sure of success.
______
The pressure at work is on the increase in all occupations. In the modem nuclear family, the expectations that formerly would have been shared among all the relatives are now concentrated on the individual partner.
If you have the feeling that 24 hours per day are not enough for nil the things you need to do, then it’s not because the day has too few hours, but because you have too many activities. A simple fact that overloaded people often tend to forget. The solution is equally simple; refuse to accept so many work assignments in your private life or your working life.
“I can handle stress” is regarded as a positive statement in the world of work. People who can handle stress are given more and more to cope with — until one day they break.
Pay careful attention to the signs that tell you that you arc under more stress than you can cope with. These signals came from various areas of life. You become ill, or your work efficiency decreases.
If you have any of these symptoms, change your life goals and decrease your tolerance of stress. Say quite openly, "I can't manage that. ""If only I were slimmer, more beautiful, richer, more clever, then I would be happier. " This is a dream that makes a lot of people ill, depressed, and unhappy. Life has its flaws, defects, comets, and edges. Only those who accept this reality can lead a really full life.
Of course there are activities in which errors are dangerous; driving a car, crossing the road. But life doesn't consist entirely of these things. In among them there is a lot of room for small and large mistakes.
Successful people all have their own places where they can withdraw in order to work. Find out which places improve your creativity. For me it's the train. When I know that I'm going to be traveling for four hours without phone calls and people knocking on my door, I find my mind is free and I can read or write complex articles. There can be problems working on the train, of course: if the person sitting opposite you keeps talking away, or if train trips make you tired (some people fall asleep after a few miles).
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