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更多“Computers can also help the po…”相关的问题
Laptop(便携式) computers are popular all over the world. People use them on trains and air planes, in airports and hotels. These laptops connect people to their workplace. In the United States today, laptops also connect students to their classrooms.
Westlake College in Virginia will start a laptop computer program that allows students to do schoolwork anywhere they want. Within five years, each of the 1,500 students at the college will receive a laptop. The laptops are part of a $ 10 million computer program at Westlake, a 100-year-old access to the Internet. In addition, they will be able to use E-mail to "speak" with their teachers, their classmates, and their families. However, the most important part of the laptop program is that students will be able to use computers without going to computer labs. They can work with it at home, in a fast food restaurant or under the tree -- anywhere at all!
Because of the many changes in computer technology, laptop use in higher education, such as, colleges and universities, is workable. As laptops become more powerful, they become more similar to desktop computers. In addition, the portable (可携带的) Internet, but also libraries and other re sources. State higher-education officials are studying how laptops can help students. States officials al so are testing laptop programs at other universities, too.
At Westlake College, more than 60 percent of the staff use computers. The laptops will allow all teachers to use computers in their lessons. As one Westlake teacher said, "Here we are in the middle of Virginia and we're giving students a window to the world. They can see everything and do every thing."
The main purpose of the laptop program is to give each student a laptop to ______.
A．use for their schoolwork
B．get access to the Internet
C．work at home
D．connect them to libraries
The computer lovers talk about how useful computers can be in business, in education and in the home—apart from all the games, you can do your accounts on them, use them to control your central heating, and in some places even do your shopping with them. Computers, they say, will also bring some leisure, as more and more unpleasant jobs are taken over by computerized robots.
The haters, on the other hand, argue that computers bring not leisure but unemployment. They worry, too, that people who spend all their time talking to computers will forget how to talk to each other. And anyway, they ask, what's wrong with going shopping and learning languages in a classroom with real teachers？ But their biggest fear is that computers may eventually take over from human beings altogether.
What does this passage mainly talk about？
A．Computers have become part of our daily lives.
B．Computers have advantages as well as disadvantages.
C．People have different attitudes to computers.
D．More and more families will own computers.
听力原文： Although the first computers were produced for use in government and industry, they have become common in other areas during the past 25 years.
In business, computers perform. many functions. They are used to perform. the data processing operations of recording, classifying, sorting, computing, storing, reporting, reproducing and communicating information. They have the advantage of being able to complete these processes at very high speeds. Computers also can process data in a size invisible in the human eye, making storage of materials a simpler task than it once was.
Universities utilize computers in several ways. Just as business stores statistical data, universities store statistics about students using computers. Registration also has been aided by the computer. By putting their programs of studies on the computer, students can find out immediately which classes are open for additional students and which already have the number that are allowed to register. Many professors use computers in their research, and experiments have been done on teaching by means of the computer.
Computers have also been affecting our daily lives more and more. Most large departments and grocery stores now have computerized cash registers. Almost everyone is familiar with the computerized hilling that is done on the large expressways. It is even possible today to buy your own computer and use it in your home.
(30)
A．In our daily life.
B．In business and universities.
C．In government and industry.
D．Both A and B.
根据材料，回答题。
Computers in Cars
You"re far from home on a lonely mad. Shadowy forests stretch away on both sides. A thick mist（雾） makes it difficult to see far beyond your car"s windshield （挡风玻璃）.
"Can this be route 90A？" you wonder. If it is， you should be near a town. Yet there"s no hint of one. Night is closing in. And you"re low on gasoline.
This is a situation where an in-car computer that can navigate would be a big help.
A car computer that navigates？ Yes! Such computers exist. Several experimental models are being tested by General Motors， Ford， Chrysler， and several foreign car makers. These computers vary in detail. But they all contain series of maps on videodiscs or videotapes. For example， one computer system contains 13，300 maps covering the continental US.
Before starting out on a trip， a driver can type in the code for the region he or she plans to drive through. The computer then shows a map of that region. At the same time， a tiny radio receiver linked to the computer goes to work. It picks up signals from navigation satellites such as the NAVSTAR network. Using these signals， the computer shows the car"s position at all times and displays this position on the map. The computer can also calculate and display the best route to follow.
A navigation computer may also receive and use data about road construction， weather conditions， and traffic jams. This information would be displayed to the driver and the computer would also use the information to work out alternate （交替的）routes。
Most cars nowadays also contain computers that help cars run more efficiently. Microprocessors （微处理机） control certain engine functions by regulating the mixing of fuel. Data on car speed， oil pressure， revolutions per minute， engine temperature， and fuel level can be displayed as digital data （numbers） or warning lights.
Some auto designers suggest that a central computer display be used to clearly present such timely information as car speed and fuel level. Warning lights would indicate a drop in oil pressure or a sudden rise in engine temperature. To get more information on these conditions， the driver could call it up on the computer display screen. When needed， the computer could be"asked" to provide navigation aid or information about the car"s condition.
By describing a typical situation of a lost driver on the road， the author intends to 查看材料
A.make us believe how complex the highway computer network is
B.let us know how in-car computers are linked to road signs
C.show us how helpful a navigation computer can be
D.tell us that NAVSTAR has come into use
阅读材料，回答题：
Computers in Cars
You&39;re far from home on alonely road. Shadowy forests stretch away on both sides. athickmist (雾) makes it difficult to see far beyond your car&39;s windshield (挡风玻璃).
"Can this B．e route 90A？" you wonder. If it is, you should be near atown. Yet there&39;s nohint of one. Night is closing in. And you&39;re low on gasoline.
This is asituation where an in-car computer that can navigate would be abig help.
A car computer that navigates？ Yes! Such computers exist. Several experimental models arebeing tested by General Motors, Ford, Chrysler, and several foreign car makers. These computersvary in detail. but they all contain series of maps on videodiscs or videotapes. For example, onecomputer system contains 13,300 maps covering the continental US.
before starting out on atrip, A．driver can type in the code for the region he or she plans todrive through. The computer then shows amap of that region. At the same time, atiny radio re-ceiver linked to the computer goes to work. It picks up signals from navigation satellites such asthe NAVSTAR network. Using these signals, the computer shows the car&39;s position at all timesand displays this position on the map. The computer can also calculate and display the best routeto follow.
Anavigation computer may also receive and use dataabout road construction, weather condi-tions, and trafficjams. This information would be displayed to the driver and the computer wouldalso use the information to work out alternate (交替的 ) routes.
Most cars nowadays also contain computers that help cars run more efficiently. Microproces-sors (微处理的) control certain engine functions B．y regulating the mixing of fuel. Dataon carspeed, oil pressure, revolutions per minute, engine temperature, and fuel level can be displayedas digital data(numbers) or warning lights.
Some auto designers suggest that acentral computer display be used to clearly present suchtimely information as car speed and fuel level. Warning lights would indicate adrop in oil pres-sure or asudden rise in engine temperature. To get more information on these conditions, thedriver could call it up on the computer display screen. When needed, the computer could be"asked" to provide navigation aid or information about the car&39;s condition.
by describing atypical situation of alost driver on the road， the author intends to__________. 查看材料
A.make us believe how complex the highway computer network is
B.let us know how in-car computers are linked to road signs
C.show us how helpful anavigation computer can be
D.tell us that NAVSTAR has come into use
听力原文： For good or bad, computers are now part of our daily lives. With the price of a small home computer now being lower, experts predict that before long all schools and businesses and most families in the rich parts of the world will own a computer of some kind. Among the general public, computers amuse strong feelings--people either love them or hate them.
The computer lovers talk about how useful computers can rein business, in education and in the home--apart from all the games, you can do your accounts on them, use them to control your control heating, and in some places even do your shopping with them. Computers, they say, will also bring some leisure, as more and more unpleasant jobs are taken over by computerized robots.
The haters, on the other hand, argue that computers bring not leisure but unemployment. They worry, too, that people who spend all their time talking to computers will forget how to talk to each other. And anyway, they ask, what's wrong with going shopping and learning languages in classroom with real teachers？ But their biggest fear is that computers may eventually take over human, beings altogether.
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A．Computers have become part of our daily lives.
B．Computers have advantages as well as disadvantages.
C．People have different attitudes to computers.
D．More and more families will own computers.
Not only ______ reading interesting stories but also he can even write some.
A) does he like B) he likes C) had he liked D) likes he
听力原文： Computers are being widely used in medicine. The most common use is for keeping hospital patient records. There may be access to these at several points—hospital patient rooms, offices, laboratories and even operating theatres. Computers are also used in the delicate task of looking after patients in the intensive care unit and in monitoring those undergoing surgery.
One of the latest developments is to use computers to assist diagnosis. A computer is programmed with information about a disease, using the accumulated knowledge of many specialists and textbooks. A doctor examining a patient may then be guided by the information given by the computer in what to look for and which questions to ask the patient. The information he gathers is fed into the computer. It may suggest further questions before finally providing a diagnosis.
This kind of procedure causes some people anxiety. They feel it increases the gap in the personal relationship between the doctor and patient. On the other hand, it makes widely available knowledge and skill which before belonged to only a small number of specialists, or which had to be found with difficulty in published material.
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A．Calculators.
B．Microwaves.
C．Computers.
D．Electroscopes (doctor's instrument).
听力原文： Computer users are advised to adopt good computing practices to keep their computer virus-free. "Protecting our computers against virus attacks is very important nowadays when computers are commonly and widely used in our home and offices." said a spokesman for the Information Technology Services Department (ITSD).
"Typical payload of computer virus can range from cresting annoyances such as affecting the mouse, keyboard or other computer functions, to more destuctive actions like modifying or deleting files, or exposing secret information from the hard disk of the victim's computer." Some computer virus may format the hard disk to corrupt all data stored inside the computer.
"Besides, there are also computer viruses that will create mass mailing or scanning traffic not only to turn infected computers into a platform. for launching further attacks to other computers, but also to consume mailbox storage and network bandwidth."
"As a result, the network and computer systems will be overloaded and the normal operation of the network and computer systems will be seriously affected." said the spokesman.
He noted that the impact was particularly singnificant due to the current highly interconnected computer notwork environment." To avoid such inconveniences and losses, we should take effective computing practices to prevent our computers from virus infections .In fact, such practices are simple and easy." said the spokesman.
(33)
A．Computers are commonly and widely used in home and offices nowadays.
B．Computers are easily to be attacked.
C．Adopting good computing practices is a good advice to protect the computer.
D．The viruses are too fearful, computer is not safe any more.
听力原文： The twenty-third Olympic Games were held in Los Angeles and, like every other Olympic Games, they represented a contest of mind, muscle, and athletic determination. The use of high technology, however, showed increasing significance in the staging of the event and helped set an example for staging future events.
Unlike the Olympics of the past, the Olympics are not just a race for gold anymore. They have also become a race for computer technology. Playing the massive event, as any host can tell you, requires a technology plan and organization that brings hundreds of countries together. In the twenty-third Games, for example, computers were used to keep track of schedules, accounts, transportation, and ticketing for more than 43,000 Olympic employees and volunteers. This was not an easy task.
A sophisticated electronic message system, moreover, helped keep the 12,000 or so journalists up-to-date on results. Due to this system, they were able to know about and broadcast to the world the judges' final decisions usually within a minute's time. This message system also allowed traffic controllers to convey traffic reports more efficiently, so that the usually confused Los Angeles highways became easy to navigate. Computers and other high-tech tools were also used to train American athletes by analyzing and evaluating performances. This- computer marvelously assisted the athletes in identifying weaknesses and suggesting ways to improve.
(30)
A．The use of high technology.
B．Being held in a big city in the U. $. A..
C．Earning a lot of money by advertising the goods.
D．Training all the athletes who were to participate in the game by using computers.
Preparing for Computer Disasters
Fires，power surges，and floods，they're all facts of life.We read about them in the morning paper and see them on the evening news．We sympathize with the victims and commiserate over their bad luck．We also shake our heads at the digital consequences-melted computers，system failures，destroyed data.Yet，somehow，many of us continue to live by that old mantra of denial：“It won't happen to me．”Well，the truth is，at some point you'll probably have to deal with at least one disaster．That's just how it goes，and in most aspects of our lives we do something about it．We buy insurance．We stow away provisions．We even make disaster plans and run drills．But for some reason，computer disaster recovery is a blind spot for many of us．It shouldn't be．Home computers contain some of our most important information，both business and personal，and making certain our data survives a disaster should be a priority．Moreover，even the smallest disaster can be a serious disruption．Personal computers have become an integral part of the smooth-running household. We use them to communicate, shop, and do homework, and they're even more vital to home office users. When home office computers go down, many small businesses grind to a halt. Fortunately, taking steps to recover from disasters and minimize their effects is quite straightforward. With a good offsite storage plan and the right tools, you can bounce back quickly and easily from minor computer disasters. And, should a major calamity strike, you can rest assured your data is safe.
Offsite Storage: Major Disasters
House fires and floods are among the most devastating causes of personal computer destruction. That's why a solid offsite backup and recovery plan is essential. Although many home users faithfully back up their hard drives, many would still lose all their data should their houses flood or burn. That's because they keep their backups in relatively close to their computers. Their backup disks might not be in the same room as their computers-tucked away in a closet or even the garage-but they're not nearly far enough away should a serious disaster strike. So, it's important to back up your system to a removable medium and to store it elsewhere.
There are many ways to approach offsite storage. It starts with choice of backup tools and storage medium. Disaster situations are stressful, and your recovery tools shouldn't add to that stress. They must be dependable and intuitive, making it easy to schedule regular backups and to retrieve files in a pinch. They must also be compatible with your choice of backup medium. Depending on your tools, you can back up to a variety of durable disk types--from CDs to Jaz drives to remote network servers. Although many of these storage media have high capacity, a backup tool with compression capabilities is a big plus, eliminating the inconvenience of multiple disks or large uploads.
Once you select your tools and a suitable medium, you need to find a remote place to store your backups. The options are endless. However, no matter where you choose, be sure the site is secure, easily accessible, and a good distance away from your home. You may also want to consider using an Internet-based backup service. More and more service providers are offering storage space on their servers, and uploading files to a remote location has become an attractive alternative to conventional offsite storage. Of course, before using one of these services, make certain you completely trust the service provider and its security methods. Whatever you do, schedule backups regularly and store them far away from your home.
Come What May: Handling the Garden Variety Computer Crisis
Not all home computer damage results from physical disaster. Many less menacing problems can also hobble your PC or destroy your information. Systems crash, kids "rearrange" data, ad
A．take steps to recover from them
B．call the computer company
C．buy insurance
D．stow away provision
