An Australian company, Smart Car Technologies, has developed a system that lets drivers know when they’re speeding.When the technology becomes commercially available, it could help lead-footed drivers avoid tickets and also save lives.The company that developed the product hopes to convince Australian government agencies to put the technology into use in their automobile fleets.
The product, called Speed Alert, links real-time location data and speed obtained with the help of GPS(全球定位系統(tǒng)) to a database of posted speed limits stored in a driver’s PDA or programmable mobile phone.The setup of the product does not need to be hooked(鉤住) up to a car’s speedometer.In fact, it is entirely portable.It will also work with newer phones and PDAs that have built-in GPS receivers.If a driver exceeds(超過) the speed limit, the speed is shown and an alert sounds.
Michael Paine, an Australian vehicle design engineer and traffic safety consultant, was hired to analyze the product.He told Live Science  that his colleagues in the road safety field are “very enthusiastic” about what they’re now calling “intelligent speed alert.” Other research, according to Paine, shows that 40 percent of all traffic deaths involve speeding.There is also a potentially future use: “Since the system is so portable, it would be easy to make it a requirement for teenage drivers to always use a speed alert device when driving,” Paine said.“The system even has the function to record speeding violations(違背), so parents can monitor their teenage drivers.”
The product will soon go on sale in Sydney.
41.What’s the purpose of the new product_______.
A.To inform us of the new car system.     B.To introduce some improvement in cars.
C.To limit certain drivers to safe driving.   D.To popularize the built-in car system.
42.Lead-footed drivers refer to the ones        .
A.who drive too carelessly   B.that drive extremely fast
C.who are partly disabled     D.that drive too slowly
43.The second paragraph mainly talks about        .
A.the project of the built-in product     B.why the system becomes popular
C.the functions of GPS in cars       D.how the product is programmed
44.Which of the following is true of Speed Alert according to Michael Paine?
A.Most of the traffic deaths can be avoided. 
B.Speeding violations can be easily found out.
C.The system will excite some teenage drivers.
D.The product will not be available for adults.
練習冊系列答案
相關習題

科目:高中英語 來源:不詳 題型:閱讀理解


Have you ever wondered why birds sing? Maybe you thought that they were just happy. After all ,you probably sing or whistle when you are happy.
Some scientists believe that birds do sing some of the time just because they are happy. However ,they sing most of the time for a very different reason .Their singing is actually a warning to other birds to stay out of their territory.
Do you know what a “territory” is? A territory is an area that an animal ,usually the male, claims(聲稱)as its own .Only he and his family are welcome there .No other families of the same species(物種)are welcome. Your yard and house are your territory where only your family and friends are welcome. If a stranger should enter your territory and threaten you, you might shout. Probably this would be enough to frighten him away.
If so, you have actually scared the stranger away without having to fight him .A bird does the same thing. But he expects an outsider almost any time ,especially at nesting(筑巢)season. So he is screaming all the time, whether he can see an outsider or not .This screaming is what we call a bird’s song, and it is usually enough to keep an outsider away.
Birds sing loudest in the spring when they are trying to attract a mate and warn others not to enter the territory of theirs.
You can see that birds have a language all their own. Most of it has to do with attracting mates and setting up territories.
56.Some scientists believe that most of the time birds’ singing is actually       .
A.a(chǎn)n expression of happiness                   B.a(chǎn) way of warning
C.a(chǎn)n expression of anger                         D.a(chǎn) way of greeting
57.What is a bird’s “territory”?
A.A place where families of other species are not accepted.
B.A place where a bird may shout at the top of its voice.
C.An area for which birds fight against each other.
D.An area which a bird considers to be its own.
58.Why do birds keep on singing at nesting season?
A.Because they want to invite more friends.
B.Because their singing helps frighten outsiders away.
C.Because they want to find outsiders around.
D.Because their singing helps get rid of their fears.
59.How does the writer explain birds’ singing?
A.By comparing birds with human beings.
B.By reporting experiment results.
C.By describing birds’ daily life.
D.By telling a bird’s story.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:完形填空

There are many kinds of entertainment for children today-books, movies, games and sports are only a few of possibilities. Television is one of the most influential kinds of __1__. Studies show that elementary school children in the United States watch television about twenty-five hours a week.
Some people feel that television has had __2__ influence on children because it offers educational programs for them. One of the best and most __3__ programs is Sesame Street (芝麻街). One study __4__ that Sesame Street helps children do better in school. Many people hope that programs like this will provide a better education for children prom poor communities and schools.
Other people feel that television is bad for children. They feel that there are too many programs about __5__ and violence, and that even educational programs don’t help a child’s education. Children __6__ watch too much television, and therefore they don’t do a lot of other things that are important to them. Preschool children need to __7__ their language and communicate with people. When they are watching television they are only listening to the __8__, they aren’t communicating with anyone. When elementary school children watch television, they read a lot less. __9__ this, they don’t learn to read and write as quickly at school.
All children learn by doing, and they need time to __10__ in order to learn about the world. When they watch television, they play less. They also have less time to develop relationship with their parents and friends, and they have less time to exercise and develop their bodies.
小題1:
A.electronicB.productsC.entertainmentD.teaching aid
小題2:
A.noB.littleC.a(chǎn) goodD.a(chǎn) bad
小題3:
A.popularB.obviousC.colourfulD.demanding
小題4:
A.a(chǎn)ssumesB.suggestsC.declinesD.claims
小題5:
A.theftB.crimeC.jokeD.comedy
小題6:
A.simplyB.inevitablyC.secretlyD.independently
小題7:
A.writeB.listen toC.speakD.read
小題8:
A.storyB.peopleC.languageD.radio
小題9:
A.Except forB.In spite ofC.As forD.Because of
小題10:
A.playB.workC.watchD.speak

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

We learned that fossil fuels were formed before and during the time of the dinosaurs(恐龍). We are using up the fuels. We can save fossil fuels by protecting and finding ways to use energy from “endless sources”, like the sun and the wind. Some people suggest that we should start using hydrogen(氫).
Hydrogen is a colorless, smell-less gas that takes up 75 percent of the whole universe. Hydrogen is found on earth only in mixture with other elements such as oxygen, carbon and nitrogen. To use hydrogen, we must separate it from these other elements.
Hydrogen can be used in NASA’s space program as fuel for the spaceships, and in fuel cells that provide heat, electricity and drinking water for astronauts. Fuel cells are devices that directly change hydrogen into electricity. In the future, hydrogen could be used to fuel vehicles and aircraft and provide power for our homes and offices.
Hydrogen can be made from natural gas. An electrical current can also be used to separate water into its elements of oxygen and hydrogen. Some plants in the sea and bacteria(細菌) give off hydrogen through sunlight under certain conditions.
Hydrogen as a fuel is high in energy. Yet a machine that burns pure hydrogen produces almost zero pollution. NASA has used liquid hydrogen since the 1970s to drive rockets and spacecraft into orbit. Hydrogen fuel cells power the spacecraft’s electrical systems, producing clean by-product-pure water, which the crew drinks.
56. We can get hydrogen from the following EXCEPT ______ according to the passage.
A. natural gas    B. water                    C. creature in the sea         D. bacteria
57. Why could the hydrogen be used widely in the future?
A. Because it is of high quality.               
B. Because it has no pollution. 
C. Because it is easy to get it from all kinds of ways.      
D. Because there are much hydrogen existing in the universe.
58. The passage mainly tells us ________.
A. the usage of a new energy source        B. the future energy sources
C. a new energy source -h(huán)ydrogen       D. how to get the energy source

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解


Pushy parents and teachers who “hothouse” the under-5s risk causing damage to the children’s long term development, a leading education expert said.
Lilian Katz, Professor of Education at the University of Illinois, said that four-year-olds engaged in reading and writing went on to perform worse academiclly than those engaged in imaginative learning. They scored higher in tests at the age of 5, but children whose first year at school was stimulating outstripped them four years later.
The findings suggest that the government's structured approach to early years' learning could be storing up problems for children. They also raise serious questions about the plan for all children to be able to read by the age of 6.
In many countries formal teaching does not start until children are 6 or 7 and have improved their social and manual skills. Children start learning to read and write at 6 in the United States. France and Germany , and at 7 in Finland and Sweden.
Professor Katz said that in many schools the courses were "boring children to tears". Much academic teaching required children to learn by memorizing pieces of information out of context, she said. Teaching in reception class should instead allow children to develop their intellect by exploring their environments and asking questions.
"Research suggests the benefits of formal academic insturction for four- and five-year-olds seem to be promising when they are tested early, but considerably less so in the long term. When these children are followed over a period of three or more years, those who had early experience in more intellectually engaging curricula were more likely to do well in school than their peers, who had received early academic instruction." She avocates teaching children through first-hand experience and play, in mixed-aged classes. This can include puppet shows, drawing or running a pretend shop in the classroom.
1.According to the passage, those who “hothouse” the under-5s would probably _________.
A. prefer a lot of interaction and stimulation while teaching
B. teach in a lively way to motivate kids’ interest
C. push the kids to memorize pieces of information
D. care about the kids’ physical development
2.What does the underlined word “ outstripped” in Paragraph 2 mean?
A. did better than                               B. looked down upon
C. caught up with                                      D. performed worse than
3.According to Lilian Katz, the government’s structured approach to early-years learning ______.
A. is necessary for improving children’s reading and writing ability
B. needs to be improved to develop children’s academicability
C. will cause problems to children in their future learning
D. has more advantages than disadvantages
4.The message the author wants to deliver through the passage is that formal teaching _______.
A. can start at different times in different countries.
B. should not be started too early
C. is best carried out in Finland and Sweden
D. should include teaching children social and manual skills
5.Which of the following is NOT the opinion of Lilian Katz?
A. Children should be taught through first-hand experience.
B. Learning in a mixed-age class is good for children.
C. Running a shop can help children get good marks.
D. Puppet shows and drawing are useful easy in teaching children.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解


It seems that some people go out of their way to get into trouble. That’s more or less what happened the night that Nashville Police Officer Floyd Hyde was on duty.
“I was on the way to a personal-injury accident in West Nashville. As I got onto Highway 40, blue lights and sirens(警笛)going, I fell in behind a gold Pontiac Firebird that suddenly seemed to take off quickly down the highway. The driver somehow panicked at the sight of me. He was going more than a hundred miles an hour and began passing cars on the shoulder.”
But Hyde couldn’t go after him. Taking care of injured people is always more important than worrying about speeders, so the officer had to stay on his way to the accident. But he did try to keep the Firebird in sight as he drove, hoping another nearby unit would be able to step in and stop the speeding car. As it turned out, keeping the Firebird in sight was not that difficult. Every turn the Pontiac made was the very turn the officer needed to get to the accident scene.
Hyde followed the Pontiac all the way to his destination (目的地). At that point he found another unit had already arrived at the accident scene. His help wasn’t needed. Now he was free to try to stop the driver of the Firebird, who by this time had developed something new to panic about.
“Just about that time,” Hyde says, “I saw fire coming out from under that car, with blue smoke and oil going everywhere. He’d blown his engine. Now he had to stop.”
“After I arrested him, I asked him why he was running. He told me he didn’t have a driver’s license(執(zhí)照).”
That accident cost the driver of the Firebird plenty - a thousand dollars for the new engine- not to mention the charges for driving without a license, attempting to run away, and dangerous driving.
63. The meaning of “panicked” in Paragraph 2 is related to _____.
A. shame B. hate    C. anger  D. fear
64. Why did the driver of the Firebird suddenly speed down the highway?
A. Because he was racing with another driver on the road.
B. Because he realized he had to hurry to the accident scene.
C. Because he thought the police officer wanted to stop him.
D. Because he wanted to overtake other cars on the shoulder.
65. Which of the following statements is true?
A. Someone else was taking care of the injured person.
B. The Pontiac reached its destination at the accident scene.
C. Hyde knew where he was going by following the right car.
D. The policeman was running after a speeder on Highway 40.
66. The driver of the Firebird ______.
A. took a wrong turn on the way
B. had some trouble with his car
C. was stopped by the police officer
D. paid for the expenses of the accident
67. What is probably the best title for the article?
A. Losing His Way?   B. Going My Way?
C. Fun All the Way?   D. Help on the Way?

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解


C
Our brains work in complex and strange ways.There are some people who can calculate the day of the week for any given date in 40,000 years, but who cannot add two plus two.Others can perform complex classical piano pieces after hearing them once, but they cannot read or write.
Dr.J.Langdon Down first described this condition in 1887.He called these people idiot savants.An idiot savant is a person who has significant mental impairment (損傷) , such as in autism or retardation.At the same time, the person also exhibits some extraordinary skills, which are unusual for most people.The skills of the savant may vary from being exceptionally gifted in music or in mathematics, or having a photographic memory.
One of the first descriptions of a human who could calculate quickly was written in 1789 by Dr.Benjamin Rush, an American doctor.His patient, Thomas Fuller, was brought to Virginia as a slave in 1724.It took Thomas only 90 seconds to work out that a man who has lived 70 years, 17 days, and 12 hours has lived 2,210,500,800 seconds.Despite this ability, he died in 1790 without ever learning to read or write.
Another idiot savant slave became famous as a pianist in the 1860s.Blind Tom had a vocabulary of only 100 words, but he played 5 ,000 musical pieces beautifully.
In the excellent movie Rain Man, made in 1988 and available on video cassette, Dustin Hoffman plays an idiot savant who amazes his brother played by Tom Cruise, with his ability to perform complex calculations very rapidly.
Today we more clearly recognize that the idiot savant is special because of brain impairment.Yet not all brain impairment leads to savant skills.Some studies have shown that people who have purposeful interruption of the left side of the brain can develop idiot savant skills.However few people wish to participate in such experiments.There are many excellent reasons for not undergoing unnecessary experimentation on one's brain.The term idiot savant is outdated and inappropriate.Virtually all savants have a high degree of intelligence and are thus not idiots.
63.What does the passage mainly talk about?
A.Idiot savants have areas of outstanding abilities.
B.Human Beings have complicated thinking process.
C.The brains of the idiot savants are partly impaired.
D.The reasons why people have wonderful skills vary.
64.Which of the following can be done by Rain Man?
A.He can play wonderful pieces of classical music.
B.He can guess out exactly the length of a man's life.
C.He can memorize the contents of the pictures fast.
D.He can count matches dropped on the floor quickly.
65.What can you infer from the passage?
A.Idiot savants have real talents for art and math.
B.Dr.Down is the first person who found idiot savants.
C.Few people wish to risk becoming savants by brain operations.
D.Intentional left brain impairments will surely lead to idiot savants.
66.Which of the following shows the structure of the passage?

1—5refer to paragraph 1—5.

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

A new college guide in the United States compares educational requirements in seven subjects. These include math, science, writing and United States history or government. The other subjects are economics, foreign language and literature.
The free online guide is from the American Council of Trustees and Alumni. The council is a nonprofit group that supports liberal arts education.
Its president, Anne Neal, says these areas of knowledge are needed to succeed in a twenty-first century society and an increasingly connected world. Yet she told VOA’s Faiza Elmasry it was surprising how many students can graduate with, in her words, a “thin education.”
Forty-two of the one hundred colleges and universities surveyed received the lowest marks. This meant they required two or fewer of the seven subjects. Five schools received a top grade for requiring six subjects. These were Brooklyn College in New York City, Texas A&M, the University of Texas-Austin, West Point and the University of Arkansas.
Robert Costrell is a professor of education reform and economics at the University of Arkansas. He says many, if not all, of the top American colleges once had a core curriculum —a set of courses required for all students.
But over the years, many have dropped these requirements. Or they have watered them down, Professor Costrell says, into what became known as distribution requirements. This system lets a student choose from a number of different courses to satisfy a requirement.
ROBERT COSTRELL: “And in many cases these courses went too far, I would say, towards the fluffy treatment of serious material, and students could satisfy their requirement by taking such courses.”
Professor Costrell says schools should not only re-examine what they teach. They should also measure what students have learned — for example, through some form of examinations or papers.
A new report this week from the College Board showed that college prices continue to rise. But Anne Neal from the American Council of Trustees and Alumni says higher prices do not guarantee a better general education. In fact, the group found that the higher the tuition, the more likely that students have to develop their own general education.
The college guide is on the Web at whatwilltheylearn.com. Anne Neal says her group is surveying more colleges. The hope, she says, is to discover what college graduates have really learned, and how ready they are to compete in the global marketplace.
67. Where does the passage probably come from?
A. A scientific fiction.                      B. A research newspaper.  
C. A fashion magazine.                     D. An entertainment newspaper.
68. The American Council of Trustees and Alumni does all the following EXCEPT _________.
A. support liberal arts education
B. concern itself with education in America
C. devote time to helping improve college education
D. make money by helping with college education
69. The words “watered them down” underlined in Paragraph 6 most likely mean “_______.”
A. reduced required courses                 B. improved required courses
C. increased required courses                D. developed required courses
70. In this passage, the new college guide mainly tells its readers that American colleges  should ______.
A. meet the requirements of the new century
B. reduce the number of required courses
C. have different standards on required courses
D. cut down on their tuitions

查看答案和解析>>

科目:高中英語 來源:不詳 題型:閱讀理解

A university math tutor has discovered the science behind “singledom”, finding that our chances of finding the perfect partner are just 1 in 285,000. Peter Backus, a tutor at the University of Warwick, published his “Why I Don’t Have a Girlfriend” paper after a three-year love drought.
His unconventional study uses a famous math formula called The Drake Equation(德雷克等式), which was first used to estimate the existence of extra-terrestrial(地球以外) life.
The results don't look promising for British singles. 30-year-old Mr. Backus found that out of the 30 million women in the UK, only 26 would be suitable girlfriends for him.
The dull equation takes into account the number of women aged 24 to 34, living in his home city of London, and who are single, meaning his chances of meeting his dream woman on a night out are slim.
The economics expert said: “There are 26 women in London with whom I might have a wonderful relationship. So, on a given night out in London there is a 0.0000034% chance of meeting one of these special people. That’s a 1 in 285,000 chance, so it’s not great.”
The puzzling Drake equation reads: N =" R*" x Fp x Ne x Fi x Fc x L, and helped pioneering scientist Professor Drake to predict that there could be 10,000 civilizations in our galaxy.
Mr. Backus simply replaced the original equation with his own criteria for a dream date, which included the percentage of women likely to find him attractive, and the number of girls aged 24-34 in London. He said: “The research may sound depressing to people looking for love, but the good news for singles is, it’s probably not your fault!”
56. Mr. Backus’ discovery in this passage is mainly concerned about ______.
A. whether there exists life out of our planet
B. the possibility of his being able to find love
C. how to get rid of singledom
D. what math can do to serve our daily life
57. What does Mr. Backus think of the result of his research?
A. Optimistic.     B. Depressing.      C. Unrealistic.     D. Exciting.
58. What can we learn from the first paragraph?
A. Mr. Backus’ major research field is “singledom”.
B. Mr. Backus found a girlfriend three years ago.
C. Mr. Backus’ new thesis will surely be well received.
D. Mr. Backus has been searching for love for long.
59. By “the good news for singles” in the last sentence, Mr. Backus probably mean _____.
A. you don’t have to blame yourself for remaining single  
B. maybe the discovery is not reliable at all
C. the result was based on his own criteria
D. there might be more dream date out of London
60. Which of the following statements is true?
A. This passage could be published in a scientific magazine.
B. The passage intends to prove there are other civilizations.
C. The passage writer doesn’t really understand the Drake equation.
D. Most women in London are not suitable for university teachers.

查看答案和解析>>

同步練習冊答案