Few of us make money by losing sleep．But three graduate students at Brown Univer
题型：不详难度：来源：
Jason Donahue, Ben Rubin and Eric Shashoua were working late nights in Brown"s business and engineering schools．They began thinking about ways to sleep better．They discovered they weren"t alone in burning the midnight oil．Around 20% of Americans get less than six hours of rest a night．
The friends imagined a smart alarm clock that could track how much time people spend in the most restorative （有回复作用的） stages of the sleep cycle: REM （rapid eye movement） and deep sleep．What would it cost to design such a thing? Five years of research, 20 employees, $14 million and a whole lot of doubting from investors a
nd scientists．Their company, Zeo, based in Newton, Mass, launched its product in June, 2009．The Zeo device uses a headband with tiny sensors （传感器） that scan your brain for signs of four sleep states- REM, light, deep and waking sleep．The smart alarm clock displays a graph of your sleep pattern and wakes you as you"re not in REM sleep （which is when you"re least groggy）．In the morning you can upload the data to the company"s Web site, and so track your sleep over time．Most of the feedback comes in the form of Zeo"s ZQ score showing how well you"ve slept．
"Zeo allows people to unlock this black box of sleep," says Dave Dickinson, a health-care CEO．
Whether any of this actually improves sleep is up to the consumer, who will also need to make lifestyle changes like cutting out alcohol before bedtime or caffeine after 3 pm．
For now the company is selling Zeo online only．Dickinson also plans to spread it to countries such as Australia, where sleep deprivation approaches US levels．
小题1:Who will support Zeo?
| A．People full of imagination． | B．People suffering sleeping problems． |
C．P eople having access to the Internet． | D．People having bad lifestyles． |
| A．To wake them up on time in the morning． |
| B．To earn enough money for their study． |
| C．To improve the quality of people"s sleep． |
| D．To enjoy their life while working at night． |
| A．spent much time and money | B．were widely supported by scientists |
| C．worked by themselves all the time | D．attracted many investors |
| A．Zeo has a direct effect on users" lifestyles． |
| B．It needs more personal efforts to make Zeo function better． |
| C．A large quantity of Zeo devices have been sold in Australia． |
| D．Consumers can go to the Zeo company to purchase Zeo in person． |
答案
小题1:B
小题1:C
小题1:A
小题1:B
解析
举一反三
The rapid spread of Facebook, which has more than 500 million users worldwide, has prompted concerns about its negative effects, but researchers at the University of Texas have reached a different conclusion．
"Our findings suggest that Facebook is not replacing face-to-face interactions between friends, family and colleagues," said S．Craig Watkins, an associate professor of radio, TV and film who headed the research team．
"In fact, we believe there is sufficient evidence that social media afford opportunities for new expressions of friendship, intimacy and community．"
The researchers questioned 900 college students and recent graduates about how and with whom they interact on Facebook．
More than 60 percent of Facebook users said posting status updates was among the most popular activities, followed by 60 percent who wrote comments on their profile and 49 percent who posted messages and comments to friends．
The researchers also found that although about the same number of men and women use Facebook, they do so in different ways．
"There is a noteworthy difference in aims in how to use a tool like Facebook．We found that for women the content tends to be more affectionate, and （they） are especially interested in using it for connection," said Watkins．
"For men, it"s more functional," he added．
Watkins pointed out that, for example, women are more likely to post pictures of social gatherings with friends, while men are more likely to post pictures of hobbies, or post a political or pop-culture related link．
小题1:What"s the popular viewpoint of ordinary people about the function of social media websites? They think ____．
| A．It is positive to personal ties |
| B．It has negative effects on personal ties |
| C．It makes no difference to personal ties |
| D．It has both good and bad effects to personal ties |
| A．resulted from | B．had | C．showed | D．produced |
| A．create new expressions of friendship " |
| B．wrote comments on their profile |
| C．update their personal statuses |
| D．post messages and comments to friends |
| A．Men concentrate more on the functions of Facebook |
| B．Much more men use Facebook than women |
| C．Men and women use a tool like Facebook for the same aim |
| D．Facebook is taking the place of face-to-face interactions between friends |
Probably not. But that’s what kids in Yemen are experiencing. Experts said Yemen is going to be the first country in the world to run out of water. According to a report, the capital, Sanaa, will run out of drinking water as early as 2025.
Because of the shortage, the government often cuts the water supply. Hannan, an 18-year-old from Lahej, told the Times: “In a good week we’ll have a water supply all week. But then the following week there will be water only for a day or two.”
Hannan said only rich people have enough water to use. They can buy water from the shops or from the water truck. Private companies own the trucks. They travel around the city every day to sell water – at very high prices.
“A lot of people can’t afford it,” she said.
The average person in Yemen uses 100 to 200 cubic meters of water per year. That is far below the international water poverty line of 1,000 cubic meters.
The government is thinking of making use of seawater. But it will cost a lot and it may not happen soon enough to help the people of Yemen.
小题1:The purpose of the text is to _______.
| A．tell us what life is like in Yemen |
| B．draw our attention to water shortage |
| C．remind us how important water is |
| D．show us ways of solving problems |
| A．buying water from shops |
| B．drinking dirty water |
| C．suffering from water shortage |
| D．washing clothes with used water |
| A．what her life is like |
| B．how beautiful Lahej is |
| C．how people use water fully |
| D．how heavy the traffic in Lahej is |
| A．has found a practical solution |
| B．only cares about rich people |
| C．may try to make use of seawater |
| D．can do nothing about the water supply |
| A．Sanaa will run out of water in 10 years |
| B．Hannan is a teenager from a rich family |
| C．the capital of Yemen is developing fast |
| D．private companies make a lot of money |
The women were asked questions measuring their beliefs or ideas about the future. The researchers attempted to identify each woman’s personality eight years after gathering the information.
The study found that hopeful individuals were 14% less likely than other women to have died from any cause. The hopeful women were also 30% less likely to have died from heart disease after the eight years.
Hilary Tindle from the University of Pittsburgh in Pennsylvania was the lead author of the report. She said the study confirmed earlier research that linked optimistic feelings to longer life.
The researchers also gathered information about people’s education, financial earnings, physical activity and use of alcohol or cigarettes. Independent of those things, the findings still showed that optimists had less of a chance of dying during the eight-year period.
Some women who answered the questions were found to be hostile (怀敌意的), or highly untrusting of others. These women were 16% more likely to die than the others. They also were 23% more likely to die of cancer.
The study also found women who were not optimistic were more likely to smoke and have high blood pressure or diabetes. They were also more likely not to exercise.
Tindle says the study did not confirm whether optimism leads to healthier choices, or if it actually affects a person’s physical health. She also says the study does not prove that negative (消极的) emotions or distrust lead to bad health effects and shorter life. Yet there does appear to be a link that calls for more research.
小题1:In which part of a newspaper can you read the above passage?
| A．Nation | B．Opinion |
| C．Science | D．Business |
| A．decide who is more likely to enjoy a happier life |
| B．find out the link between personality and health |
| C．gather information for the National Institutes of Health |
| D．compare each woman’s personality changes |
| A．Negative emotions cause a shorter life indeed. |
| B．There may be some link between personality and health. |
| C．It’s uncertain whether optimism affects one’s health. |
| D．The more optimistic you are, the longer life you may enjoy. |
| A．A woman who always doubts what others say. |
| B．A woman who doesn’t exercise. |
| C．A woman with high blood pressure. |
| D．A woman with poor physical health. |
| A．Unfair. | B．Useless. | C．Necessary. | D．Reliable. |
China has banned free plastic bags at shops and supermarkets, and people have to pay for using plastic bags. The rule started on June 1, 2008. It came because our country tried to make litter less. Making super-thin plastic bags has also been banned.
The Chinese once used about 3,000,000,000 plastic shopping bags a day, and they have caused pollution of the environment. The bags have become a main cause of plastic pollution because they are easy to break and people throw them away here and there. So the Chinese people are encouraged to bring their own bags for shopping.
What kind of shopping bag is the best to bring? Some students in Anhui have a good idea. They make their own shopping bags. They use old clothes to make cloth bags, and send them to their parents as presents. They also ask their parents and friends to use cloth bags instead of plastic ones. They think it is their duty to protect the environment.
小题1: People in China have to _____ now.
| A．throw plastic bags here and there |
| B．collect plastic bags in the street |
| C．pay for using plastic bags at shops and supermarkets |
| D．use free plastic bags at shops and supermarkets |
| A．environment | B．litter |
| C．shops | D．supermarkets |
| A．ask their parents to make cloth bags | B．make cloth bags themselves |
| C．pick up plastic bags everywhere | D．buy cloth bags for their parents |
| A．Making super-thin plastic bags has been banned in China. |
| B．The bags have become a main cause of plastic pollution. |
| C．Some students in Anhui begin to make their own shopping bags. |
| D．To protect the environment, free plastic bags have been banned in China. |
"Across the board, children who engaged in any kind of activity were belier off than kids who watched a lot of TV," said study co author professor Penny Gordon Larsen of the University of North Carolina．
Other studies have linked certain content of television programs, such as violence and sex, to children"s behavior．But beyond this issue, Gordon-Larsen said that kids who spend hours watching TV "miss opportunities" to develop skills, learn teamwork and have other experiences that their more active peers benefit from．
That doesn"t mean, however, that kids have to be on the football team． The study found that some activities like skating and skateboarding——which adults sometimes frown upon——were also related to better self respect and less risk taking．
That skaters were better behaved than TV watchers might come as a surprise to some adults who consider these teens to be bad, according to Gordon-Larsen．Skateboarding is forbidden in many public areas, and some communities oppose building skating parks．But if kids who like to skate have nowhere to do it, "it"s a shame," said Gordon-Larsen．
Not only should parents encourage their kids to engage iii the physical activities they enjoy, she said, but schools and communities should also do more to create opportunities for children to be active．
小题1:From the passage we know that .
| A．physically active kids get into less trouble |
| B．more skating parks are being built |
| C．kids who spend hours watching TV benefit a lot |
| D．kids who have nowhere to skate tend to take drugs |
| A．get into the habit of smoking or drinking |
| B．develop teamwork spirit |
| C．have risky behaviors |
| D．fail in the schoolwork |
| A．offer some information to teachers and parents |
| B．persuade kids not to watch a lot of TV |
| C．urge the public to help children be active |
| D．show the author"s concern about children"s growth |
| A．Some adults don"t understand the sports． |
| B．Some adults are impatient with kids． |
| C．Adults consider it dangerous to go skating or skateboarding. |
| D．Some adults think them related to bad behaviors. |
| A．kids are not expected to be active by some parents |
| B．professor Penny is a famous writer and journalist |
| C．skateboarding is popular in schools and communities |
| D．kids are not encouraged to join the football team |
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