New research has revealed that which song drivers listen to can influence how safe they are on the roads.Among the top ten safest songs to drive to are Come Away With Me by Norah Jones,I Don't Want to Miss a Thing by Aerosmith and Tiny Dancer by Elton John.Each of the songs has an optimum tempo(最佳节奏) for safe driving,imitating the human heartbeat at around 60 to 80 beats per minute.The Scientist by Coldplay and Justin Timberlake's Cry Me a River also appeared in the top 10.
The study,conducted at London Metropolitan University,also revealed the type of songs that cause motorists to drive dangerously.Unsurprisingly,music that is noisy increases a driver's heart rate,which can be deadly.Fast beats cause excitement that can lead people to concentrate more on the music than on the road and to speed up to match the beat of the song.Styles of music were also measured during the experiment and revealed differences between male and female drivers.Hiphop made a female driver drive far more aggressively,speeding up faster than male driver.The heavy metal music caused the fastest driving among males in the group while the dance music had the same effect among women.The male and female drivers who listened to the classical music drove the most irregularly.
The experiment involved eight people driving 500 miles each using the confused.com MotorMate app,which monitored driving behaviors through GPS technology.
【小题1】What's the main idea of the whole passage?
A.Songs that drivers prefer to listen to on their way. |
B.A study made by the confused.com MotorMate app. |
C.What kind of songs the drivers should choose to listen to during driving. |
D.Female drivers and male drives have different responses to the same music. |
A.controlled | B.banned | C.modeled | D.showed |
A.Tiny Dancer by Elton John appeared in the top 10. |
B.Usually human hearts beat at around 60 to 80 beats per minute. |
C.The classical music makes most drivers drive comfortably and safely. |
D.The passage reveals appropriate music and improper music for drivers. |
A.female and male drivers' popular tastes of music |
B.how did the study carry out |
C.why fast beat music is harmful to drivers |
D.some music with optimum tempo for driver to enjoy |
科目:高中英语 来源: 题型:阅读理解
Fish species are expected to shrink in size by up to 24% because of global warming, say scientists.
The scientists argue that failure to control greenhouse gas emissions will have a greater effect on marine ecosystems than previously thought. Previous research has suggested that changing ocean temperatures would affect both the distribution and the reproductive abilities of many species of fish. This new work suggests that fish size would also be heavily affected.
The researchers built a model to see how fish would react to lower levels of oxygen in the water. As ocean temperatures increase, so do the body temperatures of fish. But, according to lead author, Dr William Cheung, from the University of British Columbia, the lower level of oxygen in the water is key. Warmer waters could decrease ocean oxygen levels and greatly reduce fish body weight. On the other hand, rising temperatures directly increase the metabolic rate of the fish's body function. This leads to an increase in oxygen demand for normal body activities. So the fish will run out of oxygen for growth at a smaller body size.
The research team also used its model to predict fish movements as a result of warming waters. The group believes that most fish populations will move towards the Earth's poles at a rate of up to 35km per decade. "So in, say, the North Sea," says Dr Cheung," one would expect to see more smaller-body fish from tropical waters in the future."
Taking these factors into consideration, the research team concludes that fish body size will shrink between 14% and 24%, with the largest decreases in the Indian and Atlantic oceans.
When compared with actual observations of fish sizes, the model seems to underestimate what's actually happening in the seas. The researchers looked at two case studies involving North Atlantic cod and haddock. They found that recorded data on these fish showed greater decreases in body size than the models had predicted.
Dr Alan Baudron, from the University of Aberdeen, UK, believes smaller-sized fish could seriously affect the ability of fish to reproduce. "Smaller fish produce fewer and smaller eggs which could affect the reproductive potential of fish stocks," he said.
【小题1】What's the main idea of the passage?
A.Global warming makes fish smaller. |
B.Global warming makes fish decrease in numbers. |
C.Global warming affects the fish distribution. |
D.Global warming affects the ability of fish to reproduce. |
A.The rising body temperatures. |
B.The lower level of oxygen in the water. |
C.The increasing metabolic rate. |
D.The normal body activities. |
A.more big fish will be born in the sea |
B.fish tend to swim towards the shore |
C.fish tend to move towards the warm areas |
D.fish tend to move towards the colder areas |
A.make an exact prediction of | B.make too low an estimate of |
C.make too high an estimate of | D.make a careful study of |
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科目:高中英语 来源: 题型:阅读理解
Two new studies suggest that modern running shoes could increase the risk of injuries to runners.
One study involved sixty-eight healthy young women and men who ran at least twenty-four kilometers a week. The runners were observed on a treadmill machine (跑步机). Sometimes they wore running shoes. Other times they ran barefoot (赤脚).
Researchers from the JKM Technologies company in Virginia, the University of Virginia and the University of Colorado did the study.
They found that running shoes create more stress that could damage knees, hips and ankle joints than running barefoot. They observed that the effect was even greater than the effect reported earlier for walking in high heels.
The study appeared in the official scientific journal of The American Academy of Physical Medicine.
The other study appeared in the journal Nature. It compared runners in the United States and Kenya. The researchers were from Harvard University in Massachusetts, Moi University in Kenya and the University of Glasgow in Scotland.
They divided the runners into three groups. One group had always run shoeless. Another group had always run with shoes. And the third group had changed to shoeless running.
Runners who wear shoes usually come down heel first. That puts great force on the back of the foot. But the study found that barefoot runners generally land on the front or middle of their foot. That way they ease into their landing and avoid striking their heel.
Harvard’s Daniel Lieberman led the study. He says the way most running shoes are designed may explain why those who wear them land on their heels. The heel of the shoe is bigger and heavier than other parts of the shoe, so it would seem more likely to come down first. Also, the heel generally has thick material under it to soften landings.
But the researchers do not suggest that runners immediately start running barefoot. They say it takes some training. And there can be risks, like running when your feet are too cold to feel if you get injured.
The study was partly supported by Vibram, which makes a kind of footwear that it says is like running barefoot. The findings have gotten a lot of attention. But the researchers say there are many problems in the way the press has reported in their paper. So they have tried to explain their findings on a Harvard Website.
【小题1】What’s the main idea of the passage?
A.Walking in high heels could cause less serious effects than running barefoot. |
B.Two new discoveries encourage people to run in high heels. |
C.Running in shoes is partly good to runners. |
D.Two new studies prove running without shoes is beneficial to runners in most cases. |
A.Toes. | B.Hips. | C.Feet. | D.Legs. |
A.The way that we run by landing on the front or middle of our foot could avoid damaging our heel. |
B.We should start running barefoot in no time. |
C.Running in modern running shoes could cause more serious effects than running in high heels. |
D.We won’t be injured if we run barefoot. |
A.Persuasive. | B.Negative. | C.Objective. | D.Supportive. |
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科目:高中英语 来源: 题型:阅读理解
【小题1】What is the colour of blood in a vein near the surface of the skin?
A.Blue. | B.Light yellow. |
C.Red. | D.Dark reddish purple. |
A.Because their spine is in active use. |
B.Because they are more easily affected by gravity. |
C.Because they keep growing backwards. |
D.Because their spine becomes more bent. |
A.In the long run,our brain probably works harder than our heart. |
B.When our brain senses the spinning,we will feel dizzy. |
C.The brains of the other mammals are as complex as those of humans. |
D.Our feelings and emotions come from the most developed area in our brain. |
A.To give advice on how to stay healthy. |
B.To provide information about our body. |
C.To challenge new findings in medical research. |
D.To report the latest discoveries in medical science. |
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科目:高中英语 来源: 题型:阅读理解
Twothirds of the world's major rivers have now been disrupted with more than 50,000 dams in an attempt to store water and provide power.In the US,there are more than 85,000 dams,disrupting large and small rivers,and in most cases transforming natural flow.The most famous of these,the Hoover Dam,constructed in the 1930s,is mainly responsible for the fact that the Colorado River no longer reaches the ocean.
Dams,besides all their attractive benefits,also have negative impacts.Creating a reservoir means a large area must be flooded.Communities may lose their land,houses and culturally important sites.
Environmentally,the new reservoir can be a paradise for wildlife,especially birds;however,it can cause greenhouse gas emissions and poison the water.Also,the dramatic rise and fall of water levels during dam releases is too extreme for plants and animals to cope with,resulting in dead zones around the shores of reservoirs.Fish that lay their eggs in the shallows,for example,may find a few hours later that those sites are high and dry.
Downstream(在下游方向)of a dam,the flow may be reduced so that farmers cannot irrigate their fields.Many rivers run through national borders,which may cause conflict over precious water.Disputes have been continuing between India and Pakistan,and Turkey,Syria and Iraq,for example.
Dams don't just block the flow of water.They also prevent fish migrations,and dams are a barrier to sediment(沉淀物)flows.Instead of rushing downriver,sediments get backed up against the dam wall,which causes the reservoir level to increase over time.However,sediments which are rich in nutrients have become a problem.The fertility of the entire system can be influenced,with soils lost during seasonal rains not being replaced.
Perhaps the biggest problem can be seen in deltas,which are sinking into the oceans.Groundwater is being extracted to feed the city,causing the city to sink,and sediments washed away by the ocean are no longer being replaced.The result is that sea level rises in cities from Shanghai to Alexandria.
【小题1】The Hoover Dam is mentioned in the passage in order to show________.
A.dams play an important role in our life |
B.dams have impacted the flow of the rivers |
C.dams make people lose their land and houses |
D.dams have many benefits as well as side effects |
A.a,c | B.c,e |
C.b,e | D.b,c |
A.will find more places to lay their eggs |
B.will face a dangerous habitat |
C.will be fed on more sediments rich in nutrients |
D.will find it easier to deal with the rise of water |
A.Their entire system will be influenced. |
B.The rainy season will last longer. |
C.They will lie below sea level in future. |
D.Rich soils will be washed away. |
A.Environmental loss of dams. |
B.Cultural loss of dams. |
C.Economic gain of dams. |
D.Environmental benefits of dams. |
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科目:高中英语 来源: 题型:阅读理解
(2013·高考新课标全国卷Ⅱ,C)Given that many people’s moods (情绪)are regulated by the chemical action of chocolate,it was probably only a matter of time before somebody made the chocolate shop similar to a drugstore of Chinese medicine.Looking like a setting from the film Charlie&the Chocolate Factory,Singapore’s Chocolate Research Facility (CRF) has over 100 varieties of chocolates.Its founder is Chris Lee who grew up at his parents’ corner store with one hand almost always in the jar of sweets.
If the CRF seems to be a smart idea,that’s because Lee is not merely a seasoned salesperson but also head of a marketing department that has business relations with big names such as Levi’s and Sony.That idea surely results in the imagination at work when it comes to making different flavored (味道) chocolates.
The CRF’s produce is “green ”,made within the country and divided into 10 lines,with the Alcohol Series being the most popular.The Exotic Series-with Sichuan pepper,red bean (豆),cheese and other flavors-also does well and is fun to taste.And for chocolate_snobs,who think that they have a better knowledge of chocolate than others,the Connoisseur Series uses cocoa beans from Togo,Cuba,Venezuela,and Ghana,among others.
【小题1】What is good about chocolate?
A.It serves as a suitable gift. |
B.It works as an effective medicine. |
C.It helps improve the state of mind. |
D.It strengthens business relations. |
A.He knows the importance of research. |
B.He learns from shops of similar types. |
C.He has the support of many big names |
D.He has a lot of marketing experience. |
A.The Connoisseur Series. |
B.The Exotic Series. |
C.The Alcohol Series. |
D.The Sichuan Series. |
A.are particular about chocolate |
B.know little about cocoa beans |
C.look down upon others |
D.like to try new flavors |
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科目:高中英语 来源: 题型:阅读理解
Today, when a fire breaks out, you can be sure a citizen with a cell-phone camera has posted it to Facebook or Twitter, or sent it to the media. But up to now, that citizen has not been able to easily send images and details of what is happening to the people who need it most: police, firefighters and building-security people who must respond, and whose ability to help is often measured in minutes, if not seconds.
That's about to change. A one-year old company called Elerts has developed a system that's designed to mobile and social technologies to speed the flow of information between citizens and emergency workers in time of danger. The system involves free mobile applications—iPhone and iPad app(应用软件)is available now—that eyewitnesses can use to report incidents and get public-safety warnings. And Elerts is offering a management console(控制台)for security firms and universities to receive the reports and distribute warnings and instructions, like a map with the best evacuation route(疏散路线).
The service is the brainchild of Chris Russo, deputy fire chief in the coastal town of Hull, Mass. As mobile communications sped up, he grew increasingly frustrated by his inability to communicate effectively with colleagues and the public, particularly with people who are at the scene and might be able to provide help.
"Remembering situations when communications failed puts a pit in my stomach," Mr. Russo says. Last summer, he was in a search at a beach for a missing boy, who went into a bathhouse but didn't come out. First responders feared an abduction (绑架) on the beach or shark attack. The child's mother, who didn't speak English well, was so sad that she couldn't remember what color shorts he had on. Mr. Russo had no photo of the child, and no ability to turn to beachgoers.
Two long hours later, the boy was spotted by a low-flying helicopter lost and alone on the beach crying—a lucky break. "If 5 percent of beachgoers had an app to receive a message and send in sightings of a lost boy, the happy ending might have come much sooner," Mr. Russo said.
【小题1】What is the passage mainly about?
A.A moving story of Chris Russo. | B.An app for reporting emergency. |
C.A cell-phone instant service. | D.An app for firm management. |
A.Makes me feel frustrated. | B.Causes a stomachache. |
C.Arouses my interest. | D.Leaves a hole in my stomach. |
A.have to carry out rescue work in minutes |
B.must send images and details immediately |
C.need images and detailed information badly |
D.have to turn to Facebook and Twitter for details |
A.advertise his creativity in communication |
B.show readers the working principle of the new system |
C.make the passage more interesting to read |
D.inform readers how Russo got the idea of the service |
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科目:高中英语 来源: 题型:阅读理解
In most situations, light helps us see. But when it comes to looking at the night sky, light is actually a kind of pollution. It prevents our view of some of life’s most striking sights: stars, planets, and even galaxies(银河系).
“When I was a little boy, I loved the night sky. I remember looking up and the sky was filled with stars. I became an astronomer because I was amazed by their beauty,” says Robert Gent, “Now in most big cities kids can’t see the stars like I did.”
Normally, about 2,500 individual (单个的) stars are visible to the human eyes without using any special equipment. But because of light pollution, you actually see just 200 to 300 and fewer than a dozen from some cities. Only one in three Americans can see our own galaxy with the naked eyes. Those people live far away from the lights of big cities, office buildings, and shopping malls.
Fortunately, there’s an inexpensive and useful way. If we shine lights down at the ground instead of up into the sky, and use lower brightness levels, we can save big amounts of energy and keep the beauty of the night sky. Many cities and towns have passed laws limiting lights at night, making sure enough shine for safety without creating much light pollution.
Light pollution affects more than our view of the heavens and can harm wildlife. Migrating birds(候鸟) sometimes fly over cities and become confused by the brightness, flying in circles until they drop from exhaustion. Sea turtles need dark beaches for nesting and won’t approach bright lights. Too much light at night may even affect human health. For all these reasons, researchers are working on ways to use lights only when and where they are truly needed. Everyone deserves to look up at the sky.
【小题1】According to the text, using our naked eyes, ________.
A.people in remote areas can see more stars than those in big cities |
B.over one third Americans can see our own galaxy |
C.about one in three Americans in big cities can see our own galaxy |
D.Americans can only see 200 to 300 stars |
A.save the electricity |
B.make sure of migrating birds’ safety |
C.let you count the number of stars |
D.avoid much light pollution |
A.The cause of light pollution. |
B.The way to reduce light pollution. |
C.The effect of light pollution. |
D.People’s attitude towards light pollution. |
A.air pollution | B.tiredness | C.breath | D.brightness |
A.Light Pollution | B.Seeking the Sky | C.Stars in the Sky | D.City Pollution |
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科目:高中英语 来源: 题型:阅读理解
Speaking two languages rather than just one has obvious practical benefits in an increasingly globalized world.But in recent years, scientists have begun to show that the advantages of bilingualism (双语能力) are even more important than being able to converse with a wider range of people.Being bilingual, it turns out, makes you smarter.It can have a deep effect on your brain, improving skills not related to language and even protecting against a serious mental disorder in old age.
This view of bilingualism is different from the understanding of bilingualism through much of the 20th century.Researchers, educators and policy makers long considered a second language to be an interruption that prevented a child's school work and ability to think and understand things.They were not wrong about the interruption: there is ample evidence that in a bilingual \s brain both language systems are active even when he is using only one language, thus creating situations in which one system disturbs the other.But this interruption, researchers are finding out, isn't so much a disturbance.It forces the brain to solve inside conflict, giving the mind a workout that strengthens its thinking muscles.
The key difference between bilinguals and monolinguals may be more basic: a heightened ability to monitor the environment."Bilinguals have to switch languages quite often—you may talk to your father in one language and to your mother in another language," says Albert Costa, a researcher at the University of Pompea Fabra in Spain.
"It requires keeping track of changes around you in the same way that we monitor our surroundings when driving." In a study comparing German-Italian bilinguals with Italian monolinguals on monitoring tasks, Mr.Costa and his colleagues found that the bilingual subjects not only performed better, but they also did so with less activity in parts of the brain involved in monitoring, showing that they did better in it.
【小题1】From the passage we can learn that experts used to believe that ______.
A.interruption forced a bilingual's brain to strengthen its thinking ability |
B.a second language stopped children's studying as well as mental development |
C.using two languages annoyed the children who have trouble in learning skills |
D.language systems were busy in a bilingual's brain when he was using languages |
A.change | B.use | C.speak | D.study |
A.Cautious. | B.Doubtful. | C.Concerned. | D.Favourable. |
A.How Bilinguals Use Languages |
B.What Bilingualism Is Really about |
C.Why Bilinguals Are More Intelligent |
D.When People Learn a Second Language |
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