They may be just passing your office, computer bag slung (悬挂) over one shoulder.
题型：不详难度：来源：
They may be just passing your office, computer bag slung (悬挂) over one shoulder. Or they may be sitting in a car outside it, causally tapping away at a laptop. They look like innocent passers-by. In fact, they are stealing your corporate secrets.
Drive-by hacking is the trendy term given to the practice of breaking into wireless computer networks from outside the buildings that house them. A recent study in the UK, sponsored by RSA Data Security, found that two-thirds of organizations with wireless networks were risking their data in this way. Security experts patrolled (巡逻) several streets in the City of London seeking evidence of wireless networks in operation.
Of 124 that they identified, 83 were sending data without encrypting（加密）them. Such data could readily be picked up by a passer-by armed only with a portable computer, a wireless modem and a few pieces of software that can be freely downloaded from the Internet.
The data could include sensitive company documents containing valuable information. Or they could be e-mail identities and passwords that could be used by hackers to log into corporate networks as if they were legal users.
Most companies using wireless networking technology do not take even the simplest of measures to protect their data. Nearly all wireless network technology comes with some basic security features that need only to be activated (激活) in order to give a minimum level of security, for example, by encrypting the data being passed over the network.
Raymon Kruck, business development manager at Check Point Software, a security technology specialist, believes this could be partly a psychological problem. People see the solid walls of their building as safeguards and forget that wireless networks can extend up to 200 meters beyond physical walls.
Companies without any security at all on their wireless networks make it ridiculously easy for hackers to break in. Switching on the security that comes with the network technology should be automatic. Then there are other basic steps a company can take, says Mr. Kruck, such as changing the passwords on the network from the default (默认) setting.
Companies can also install firewalls, which form a barrier between the internal network and the public Internet. They should also check their computer records regularly to spot any abnormal activity, which might betray the presence of a hacker.
小题1:According to the study sponsored by RSA Data Security, two thirds of the subjects _______.| A．had most of their company data stolen | | B．depended on wireless computer networks | | C．were exposed to drive-by hacking | | D．were unaware of the risk of wireless hacking |
小题2:Which of the following is NOT considered in the study?| A．The number of computer hacking incidents. | | B．The number of wireless computer networks identified. | | C．The way in which data are sent and received. | | D．The way in which data are hacked and stolen. |
小题3:Most wireless network technology has_________.| A．data encryption program | | B．password security programs | | C．illegal-user detection | | D．firewall |
小题4:Raymond Kruck most probably agrees that wireless network security involves ________.| A．wireless signal administration | | B．changes in user’s awareness | | C．users’ psychological health | | D．stronger physical walls |
小题5:The passage is most likely to be seen in a __________| A．book review | B．science fiction | C．textbook | D．computer magazine |
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答案
小题1:C
小题2:A
小题3:A
小题4:B
小题5:D |
解析
小题1:细节理解题。结合A recent study in the UK, sponsored by RSA Data Security, found that two-thirds of organizations with wireless networks were risking their data in this way.可知答案。此处in this way指的是drive-by hacking。
小题2:细节理解题。结合Of 124 that they identified可知B项在实验中提及；结合Such data could readily be picked up by a passer-by armed only with a portable computer, a wireless modem and a few pieces of software 可知C项在实验中提及；结合they could be e-mail identities and passwords that could be used by hackers to log into corporate networks as if they were legal users可知D项在实验中提及。
小题3:细节理解题。结合Nearly all wireless network technology comes with some basic security features that need only to be activated (激活) in order to give a minimum level of security, for example, by encrypting the data being passed over the network.
（几乎所有的无线网络技术都有基本的安全功能，只需要被激活就能提供最低级别的安全性，例如，通过把数据加密）可知答案。
小题4:细节理解题。结合this could be partly a psychological problem可知在Raymond Kruck看来这是个心理问题，需要电脑使用者从意识上改变。
小题5:文章出处题。文章介绍了使用无线网络时，人们的安全意识不够，易导致信息被盗及如何防范。所以可确定答案为D。 |
举一反三
From good reading we can derive pleasure, companionship, experience, and instruction. A good book may absorb our attention so completely that for the time being we forget our surroundings and even our identity. Reading good books is one of the greatest pleasures in life. It increases our contentment when we are cheerful, and lessens our troubles when we are sad. Whatever may be our main purpose in reading, our contact with good books should never fail to give us enjoyment and satisfaction.
With a good book in our hands we need never be lonely. Whether the characters portrayed are taken from real life or are purely imaginary, they may become our companions and friends. In the pages of books we can walk with the wise and the good of all lands and all times. The people we meet in books may delight us either because they resemble human friends whom we hold dear or because they present unfamiliar types whom we are glad to welcome as new acquaintances. Our human friends sometimes may bore us, but the friends we make in books need never weary us with their company. By turning the page we can dismiss them without any fear of hurting their feelings. When human friends desert us, good books are always ready to give us friendship, sympathy, and encouragement. One of the most valuable gifts bestowed by books is experience. Few of us can travel far from home or have a wide range of experiences, but all of us can lead varied lives through the pages of books. Whether we wish to escape from the seemingly dull realities of everyday life or whether we long to visit some far-off place, a book will help us when nothing else can. To travel by book we need no bank account to pay our way; no airship or ocean liner or stream-lined train to transport us; no passport to enter the land of our heart"s desire. Through books we may get the thrill of hazardous adventure without danger. We can climb lofty mountains, brave the perils of an Antarctic winter, or cross the scorching sands of the desert, all without hardship. In books we may visit the studios of Hollywood; we may mingle with the gay throngs of the Paris boulevards; we may join the picturesque peasants in an Alpine village or the kindly natives on a South Sea island. Indeed, through books the whole world is ours for the asking. The possibilities of our literary experiences are almost unlimited. The beauties of nature, the enjoyment of music, the treasures of art, the triumphs of architecture, the marvels of engineering, are all open to the wonder and enjoyment of those who read.
小题1:Why is it that we sometimes forget our surroundings and even our identity while reading?| A．No one has come to disturb you. | | B．Everything is so quiet and calm around you. | | C．The book you are reading is so interesting and attractive. | | D．Your book is overdue; you are finishing it at a very fast speed. |
小题2:How would you account for the fact that people like their acquaintances in books even more?| A．They resemble human friends exactly. | | B．They are unfamiliar types we like. | | C．They never desert us. | | D．They never hurt our feelings. |
小题3:Which of the following is true?| A．Your wish to visit some far-off place can be realized through the pages of the books. | | B．To escape from the dull realities of everyday life you should take up reading. | | C．Books can always help you to live a colorful life. | | D．You may obtain valuable experience from reading good books. |
小题4: The word “weary” means ______.| A．“to attract someone’s attention” | | B．“to distract someone’s attention” | | C．“to make someone very tired” | | D．“to make someone interested” |
小题5:“... the whole world is ours for the asking” implies that ____________.| A．in books the world is more accessible to us | | B．we can ask to go anywhere in the world | | C．we can make a claim to everything in this world | | D．we can make a round-the-world trip free of charge |
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Due to climate change, Arctic ice is breaking up earlier in the spring, and its area is decreasing. This is creating problems for polar bears that make their homes off northern Alaska and in Hudson Bay.
Polar bears off Alaska normally hunt and raise their young on ice sheets that float on the ocean. But as the ice has melted, the polar bears have been forced to spend more time on land. There, they have begun to frequent beaches, feeding on the remains of whales caught by native hunters. For polar bears, this food is less nutritious than seals that they normally catch on ice sheets. The shrinking（减少） ice has also forced more polar bears into the ocean. In the past, they only had to swim short distances between ice sheets. But as the ice has shrunk, polar bears have been forced to swim longer and longer distances in the open ocean. This poses a severe danger during rough weather, and an increasing number of drowned polar bears have been observed.
In Hudson Bay, the ice breaks up three weeks earlier in the spring now than it did 20 years ago. Polar bears on Hudson Bay fast（绝食） during the summer, waiting for ice to form in the fall to hunt. Every year, the summer gets longer, and the bears get skinnier. Over the past 25 years, the average weight of the female bears has dropped 68 kg. This loss affects their ability to reproduce, and already the number of births has dropped 15 percent. Unless the bears can learn to survive these climate changes, these giants of the ice may one day disappear.
小题1:What is Arctic ice doing earlier each year?| A．It’s freezing. | B．It’s hardening. | | C．It’s melting. | D．It’s expanding. |
小题2:What is true of polar bears that are spending more time on land in Alaska?| A．Their young are dying. | | B．Their diet is changing. | | C．Their health is improving. | | D．Their families are growing. |
小题3:What do polar bears in Hudson Bay do during the summer?| A．They claim territory(地域). | B．They protect mates. | | C．They hunt animals. | D．They stop feeding |
小题4:In which publication would you most likely find this passage?| A．Medical News | B．Society Today | C．Wildlife Journal | D．Design Magazine |
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Knowing the best way to study will help you to be a better student．By using your time properly，you can do your homework more quickly．Learning to stuady is not difficult．
The first thing to remember is that you must be willing to learn．It doesn’t mean that you must always like the subject．It does mean，however，that you must be willing to do whatever is necessary to learn．Try to understand why it is important and how it will help you now and later to do and learn other things．Knowing mathematics facts will be useful in your whole life．Knowing how to spell makes any kind of writing easier．Sometimes a subject that you think is going to be uninteresting will be exciting when you begin to work at it and understand it more clearly．Learning things can be fun if you are willing to work with them．
Here’s some advice for you：have a certain time each day and a quiet place with good lighting for study，so that you can concentrate(集中)on your study without interruptions(中断，打断)；have everything ready before you sit down to study—a dictionary，paper，a pen and books；be sure you understand what you should learn before you start；read carefully and pay special attention to the most important things；when memorizing(记忆), first find out the main parts and then recite(背诵)the whole thing；check your homework after you finish it：never forget the importance of review and preview．
小题1:The main idea of the text is ．| A．to prove that learning is not difficult | | B．to make the readers be interested in study | | C．to tell the importance of self-teaching | | D．to tell the students how to study well |
小题2:The first thing to remember in studying is that ．| A．you must like the subject | | B．you must follow the teacher | | C．you must enioy learning | | D．you must study hard |
小题3:What does the underlined word“preview”mean?| A．To go over． | | B．To review again． | | C．To view in advance． | | D．To discuss． |
小题4:Which of the following is NOT the advice given in the text?| A．To put a pen，paper and books beside you before study． | | B．To study at any possible time and place． | | C．To review and preview． | | D．To pay attention to the most important things。 |
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“If you talk to the plants, they will grow faster and the effect is even better if you’re a woman.” Researchers at Royal Horticultural Society carried out an experient to find that the voice of a woman gardener makes plants grow faster.
The experiment lasted a month and by the end of the study scientists managed to discover that tomato plants grew up two inches taller when women gardeners talked to them instead of male.
Sarah Darwin was the one making the plants registered the best growth. Her voice was the most “inspiring” for plants than those of nine other gardeners when reading a passage from The Origin of Species. The great-great-granddaughter of the famous botanist(植物学家) Charles Darwin found that her plant grew about two inches taller than the plant of the best male gardener.
Colin Crosbie, Garden Superintendent at RHS, said that the finding cannot yet be explained. He assumes that women have a greater range of pitch（音高） and tone（音调） which might have a certain effect on the sound waves that reach the plant. “Sound waves are an environmental effect just like rain or light ,”said Mr Grosbie.
The study began in April at RHS Garden Wisley in Survey. Scientists started with open auditions(听力) for the people who were asked to record passages from John Wyndham"s The Day of the Triffids, Shakespeare’s A Midsummer"s Night Dream and Darwin"s The Origin of Species.
Afterwards researchers selected a number of different voices and played them to 10 tomato plants during a period of a month. Each plant had headphones（耳机） connected to it. Through the headphones the sound waves could hit the plants. It was discovered that plants that “listened” to female voices on average grew taller by an inch in comparison to plants that heard male voices.
Miss Darwin said, “I think it is an honor to have a voice that can make tomatoes grow, and especially fitting because for a number of years I have been studying wild tomatoes from the Galapagos Island at the Natural History Museum in London.”
小题1:What does the passage talk about?| A．Plants enjoy men’s voices than women’s. | | B．A botanical experiment in a museum. | | C．Voice’s influence on plant growing. | | D．Strange phenomenon（现象） at Royal Horticultural Society. |
小题2:What does the underlined sentence in paragraph 4 mean?| A．Plants need sound as well as rain and light. | | B．Sound is basic for the plant to grow. | | C．Sound has a good effect as rain or light does. | | D．Plants can’t live without sound, rain or light. |
小题3:Sarah Darwin is most likely a (an)_____.| A．botanist | B．gardener | C．astronomer | D．environmentalist |
小题4:What can we learn from the passage?| A．The experiment ended in May. | | B．Scientist can explain the findings clearly. | | C．Plants enjoy listening to the passages from masterpieces. | | D．The findings are of great importance to human beings. |
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Kuss Middle School serves students in Fall River, Mass. , a former mill town that has struggled economically for decades. Students at Kuss have struggled, too, usually falling short of making the academic progress required under the No Child Left Behind law.
Then, last year, the school experimented with extending the school day. Teachers got paid at a higher hourly rate.
Students weren"t thrilled at first with leaving school at 4:15 p.m. instead of at 2:20 p.m. But the added hours gave them more time for physical education and let them select special interest classes. By the end of the year, student scores had risen by enough to enable Kuss to make the progress required under the federal No Child Left Behind law.
The only surprise is that more districts haven"t lengthened school schedules set decades ago to accommodate (适应) a farm economy rather the information economy of today.
School days
The USA ranks 36th of 40 industrialized nations in average weekly instructional time.
Selected countries:
1) Thailand--30.5 hours 2) Korea--30.3 hours 7) China--26.5 hours
14) France--24.6 hours 15 ) UK--24.6 hours
16) Mexico--24.2 hours 23 ) Japan--23.8 hours
26)Canada--23.6 hours 36)USA--22.2 hours 40)Brazil--19 hours
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New research suggests the time is ready for a change:
Matched against 39 other developed countries, the United States is near the bottom in the rankings of average weekly instructional time in school. Measured over 12 years, students in the top-scoring countries spend the equivalent of a full extra year in school.
US students perform poorly on math and science tests compared to their international peers, according to a US Education Department comparison released earlier this month. In math, American 15-year-old scored near the bottom among the study"s 30 developed countries.
Most countries that boost the number of minutes spent on math instruction find pay offs in improved math scores, according to a study released this month by the Brookings Institution. Small in creases in the school day are more effective than a longer school year, the report concluded.
The most encouraging news about the benefits of extending the school day comes from Massachusetts, where an experiment with 10 schools, including Kuss, appears to be working. Those 10 schools lengthened their instructional days by 25% and boosted their state scores in math, English and science at all grades.
Perhaps the concept won"t work everywhere. Certainly, it won"t instantly be popular. But it"s obvious that a problem exists or that adding class time seems to help.
小题1:What is the main idea of the above passage?| A．Experiments with extended school hours produce academic gains. | | B．Kuss Middle School sets a good example for US education. | | C．Academic progress has achieved under the No Child Left Behind law. | | D．Information age calls for more instructional lime at all schools. |
小题2:A longer school day is suggested for the following reasons except that _________.| A．students from many developed countries spend more time at school | | B．American students do a bad job at science subjects | | C．teachers are paid at a higher rate with time added | | D．a longer school day works better than a longer school year |
小题3:Which statement is true of Kuss Middle School?| A．Kuss Middle School lies in where a farm economy is changing to an information one. | | B．Kuss Middle school has joined the federal "No Child Left Behind" progrann | | C．Neither teachers nor students are happy with the longer school day. | | D．Adding class time functions at Kuss Middle School. |
小题4:The writer has expressed ____________.| A．a positive attitude towards adding school time | | B．a negative attitude towards adding school time | | C．a changing attitude towards adding school time | | D．a right attitude towards adding school time |
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