devices take information people can understand and convert them to a form the computer can processA.InputB.OutputC.I/OD.Disk
devices take information people can understand and convert them to a form the computer can process
A.Input
B.Output
C.I/O
D.Disk
相关考题：
Telecommunications stand for devices and systems that transmit electronic or optical signals across long distances. Telecommunications enables people around the world to contact one another, to access information instantly, and to communicate from remote areas. Telecommunications usually involves a sender of information and one or more recipients linked by a technology, such as a telephone system, that transmits information from one place to another. Telecommunications enables people to sand and receive personal messages across town, between countries, and to and from outer space. It also provides the key medium for delivering news, data, information, and entertainment.Telecommunications devices convert different types of information, such as sound and video, into electronic or optical signals. Electronic signals typically travel along a medium such as copper wire or are carried over the air as radio waves. Optical signals typically travel along a medium such as strands of glass fibers. When a signal reaches its destination, the device on the receiving end converts the signal back into an understandable message, such as sound over a telephone, moving images on a television, or words and pictures on a computer screen.Telecommunications messages can be sent in a variety of ways and by a wide range of devices. The messages can be seat from one sender to a single receiver (point-to-point) or from one sender to many receivers (point-to-multipoint). Personal communications, such as a telephone conversation between two people or a facsimile (fax) message (see Facsimile Transmission), usually involve point-to-point transmission. Point-to-multipoint telecommunications, often called broadcasts, provide the basis for commercial radio and television programming.Telecommunications begin with messages that are converted into electronic or optical signals. Some signals, such as those that carry voice or music, are created in an analog or wave format, but may be converted into a digital or mathematical format for faster and more efficient transmission. The signals are then sent over a medium to a receiver, where they are decoded back into a form. that the person receiving the message can understand. There are a variety of ways to create and decode signals, and many different ways to transmit signals.Individual people, businesses, and governments use many different types of telecommunications systems. Some systems, such as the telephone system, use a network of cables, wires, and switching stations for point-to-point communication. Other systems, such as radio and television, broadcast radio signals over the air that can be received by anyone who has a device to receive them. Some systems make use of several types of media to complete a transmission. For example, a telephone call may travel by means of copper wire, fiber-optic cable, and radio waves as the call is sent from sender to receiver. All telecommunications systems are constantly evolving as telecommunications technology improves. Many recent improvements, for example, offer high-speed broadband connections that are needed to send multimedia information over the Internet.Personal computers have pushed the limits of the telephone system as more and more complex computer messages are being sent over telephone lines, and at rapidly increasing speeds. This need for speed has encouraged the development of digital transmission technology. The growing use of personal computers for telecommunications has increased the need for innovations in fiber-optic technology.Telecommunications and information technologies are merging and converging. This means that many of the devices now associated with only one function may evolve into more versatile equipment. This convergence is already happening in various fields. Some telephones and pagers are able to store not only phone numbers but also names and personal information aboA．Current development.B．Transmission of message.C．Computer networking.D．Government regulation.
which descnption is NOT true?A．Personal computer has not the features of the larger system．B．Large systems offer higher processing speeds for user and return more data than PCs．C．Output devices take output results from the CPU in machine-coded form. and conven them into a form. that used by people.D．The input/output devices and auxiliary storage units of a computer system are called peripherals.
Having acknowledged receipt of the interview letter，you must prepare for the interview. Firms usually take a good deal of trouble over interviews，and there may be three or more people present，which can be a little frightening. Very often the personnel officer will begin by some words of welcome and an invitation to you to tell them a little about yourself. This is really inviting you to repeat the information you have already supplied on the application form，and which they have already read，but it does have some point. It will put you at your ease，because at least you know all about your own level of achievement and can speak about it confidently. It helps them assess your ability to communicate and your serf-esteem. Some people have too high an opinion of themselves，some take an unduly pessimistic view of their achievements，while others have a nicely balanced assessment of their own abilities.
People begin to understand the natural resources are not () , which can be used up without caution.A、numerousB、numerableC、inexhaustibleD、valuable
What was the use of having such high heels, when people seemed to _______ a blind eye to them. A.giveB.turnC.makeD.take
In the author’s opinion, ________.[A] advertising can seldom bring material benefit to man by providing information[B] advertising informs people of new ideas rather than wins them over[C] there is nothing wrong with advertising in persuading the buyer[D] the buyer is not interested in getting information from an advertisement
Passage FourMost people do not think of fishes and other sea animals as having voices, and of those who are aware of the fact that many of them can "speak", few understand that these "conversations" have significance. Actually, their talk may be as meaningful as much of our own. For example, some sea animals use their "voices" to locate their food in the ocean expanses (广阔的区域); others use their "voices" to let their fellows know of their locations; and still others, as a means of obtaining mates. Sometimes, "speaking" may even mean the difference between life and death to a sea animal. It appears in some cases that when a predator (食肉动物) approaches, the prey (被捕的动物) depends on no more than the sounds it makes to escape.Fish sounds are important to man, also. By listening to them, he can learn a great deal about he habits of creatures that make them, the size of the School they form, the patterns of their migrations, and the nature of the environments in which they live. He can also apply this nformation to the more effective utilization of the listening spots he has set up to detect enemy submarines (潜水艇). A knowledge of fish sounds can avoid confusion and unneeded effort when a "new" sound is picked up and the sound sentry (哨兵) must decide whether or not to call an alarm.46. Among the people who know that many sea animals have voices, few ______.A. know the meaning of their conversationsB. realize that they can communicate with each otherC. realize that they can make speechesD. could understand their conversations
It can be concluded from the passage that ______.A. we should try our best to prevent disablementB. we must take a proper attitude towards the disabledC. the able-bodied people will never fully understand the disabledD. both physical and mental barriers are hard to break down
共用题干第三篇No one knows exactly how many disabled people there are in the world,but estimates suggest the figure is over 450 million.The number of disabled people in India alone is probably more than double the total population of Canada.In the United Kingdom,about one in ten people have some disability. Disability is not just something that happens to other people.As we get older,many of us will become less mobile,hard of hearing or have failing eyesight.Disablement can take many forms and happen at any time of life.Some people are born with disabilities.Many others become disabled as they get older. There are many progressive disabling diseases.The longer time goes on,the worse they become.Some people are disabled in accidents. Many others may have disability in the form of a mental illness.All are affected by people's attitude towards them.Disabled people face many physical barriers.Next time you go shopping or to work or visit friends,imagine what would you do if you could not get up steps,or on to buses and trains?What would you do if you could not see where you were going or could not hear the traffic?But there are other barriers:prejudice（偏见）can be even harder to break down and ignorance represents by far the greatest barrier of all.It is almost impossible for the able-bodied to fully understand what the disabled go through,so it is important to draw attention to these barriers and show that it is the individual person and their ability,not their disability,which counts.It can be concluded from the passage that______.A:we should try our best to prevent disablementB:we must take a proper attitude towards the disabledC:the able-bodied people will never fully understand the disabledD:both physical and mental barriers are hard to break down
Elderly people respond best to a calm and unhurried environment. This is not always easy to provide as their behavior can sometimes be irritating. If they get excited or upset then they may become more confused and more difficult to look after. Although sometimes it can be extremely difficult, it is best to be patient and not to get upset yourself. You should always encourage old people to do as much as possible for themselves but be ready to lend a helping hand when necessary. Failing memory makes it difficult for the person to recall all the basic kinds of information we take for granted. The obvious way to help in this situation is to supply the information that is missing and help them make sense of what is going on. You must use every opportunity to provide information but remember to keep it simple and straight forward. "Good morning, Mum. This is Fiona, your daughter. It is eight o′clock, so if you get up now, we can have breakfast downstairs." When the elderly person makes confused statements, e.g. about going out to his or her old employment or visiting a dead relative, correct in a calm matter-of-fact fashion: "You don′t work in the office any more. You are retired now. Will you help me with the dishes?" We rely heavily on the information provided by signposts, clocks, calendars and newspapers. These assist us to organize and direct our behavior. Confused old people need these aids all the time to compensate for their poor memory. Encourage them to use reminder boards or diaries for important coming events and label the contents of different cupboards and drawers. Many other aids such as information cards, old photos, scrap books, addresses or shopping lists could help in individual case. The main subject of the passage about elderly people is ___________.A.their general care and welfareB.promoting their physical and mental healthC.how they can be helped to look after themselves as far as possibleD.assisting them with physical problems to live a normal life
Elderly people respond best to a calm and unhurried environment. This is not always easy to provide as their behavior can sometimes be irritating. If they get excited or upset then they may become more confused and more difficult to look after. Although sometimes it can be extremely difficult, it is best to be patient and not to get upset yourself. You should always encourage old people to do as much as possible for themselves but be ready to lend a helping hand when necessary. Failing memory makes it difficult for the person to recall all the basic kinds of information we take for granted. The obvious way to help in this situation is to supply the information that is missing and help them make sense of what is going on. You must use every opportunity to provide information but remember to keep it simple and straight forward. "Good morning, Mum. This is Fiona, your daughter. It is eight o′clock, so if you get up now, we can have breakfast downstairs." When the elderly person makes confused statements, e.g. about going out to his or her old employment or visiting a dead relative, correct in a calm matter-of-fact fashion: "You don′t work in the office any more. You are retired now. Will you help me with the dishes?" We rely heavily on the information provided by signposts, clocks, calendars and newspapers. These assist us to organize and direct our behavior. Confused old people need these aids all the time to compensate for their poor memory. Encourage them to use reminder boards or diaries for important coming events and label the contents of different cupboards and drawers. Many other aids such as information cards, old photos, scrap books, addresses or shopping lists could help in individual case. Visual aids can give practical help to elderly people by ___________.A.bringing back to mind various kinds of useful informationB.informing them about what has to be done nextC.helping them to revive old memoriesD.clearing up their mistakes and confusion
Elderly people respond best to a calm and unhurried environment. This is not always easy to provide as their behavior can sometimes be irritating. If they get excited or upset then they may become more confused and more difficult to look after. Although sometimes it can be extremely difficult, it is best to be patient and not to get upset yourself. You should always encourage old people to do as much as possible for themselves but be ready to lend a helping hand when necessary. Failing memory makes it difficult for the person to recall all the basic kinds of information we take for granted. The obvious way to help in this situation is to supply the information that is missing and help them make sense of what is going on. You must use every opportunity to provide information but remember to keep it simple and straight forward. "Good morning, Mum. This is Fiona, your daughter. It is eight o′clock, so if you get up now, we can have breakfast downstairs." When the elderly person makes confused statements, e.g. about going out to his or her old employment or visiting a dead relative, correct in a calm matter-of-fact fashion: "You don′t work in the office any more. You are retired now. Will you help me with the dishes?" We rely heavily on the information provided by signposts, clocks, calendars and newspapers. These assist us to organize and direct our behavior. Confused old people need these aids all the time to compensate for their poor memory. Encourage them to use reminder boards or diaries for important coming events and label the contents of different cupboards and drawers. Many other aids such as information cards, old photos, scrap books, addresses or shopping lists could help in individual case. A difficulty experienced by other people is that they may ___________.A.worry too much about the old person' s conditionB.find it difficult sometimes to deal with matters calmlyC.try to do too much for the person concernedD.fail to understand the old person' s problems
On television all over the world there are programmes about the work of the police．They are popular because they are usually very exciting．In London there is a television programme called"Police Five"--because it is on for five minutes once a week．A television reporter,Shaw Taylor,talks about crimes in the London area．He asks for public help．The police station needs the help of ordinary people because sometimes you or I have information that can be useful to the police.Shaw Taylor shows pictures of paintings,jewellery(珠宝)and other things which thieves stole during the week．Sometimes he shows the car that the thieves escaped in．When people see men or things on the television programme which they may remember,they can tell the police where they saw them．With their help the police may catch more criminals.Sometimes the police find a car or some money．Shaw Taylor shows them on television．The owners sometimes see them．Then they can telephone the police and say,"Thank you very much--that's mine!"The police station asks for public help because__.A.ordinary people like the television programmeB.ordinary people are interested in pictures of paintings,jewellery,etC.the policemen can not catch the thieves themselvesD.ordinary people may help the policemen get useful information about the criminals
资料：Anything that affects the smooth flow of information is known as noise. This might be, for example, the language used,an in appropriate use of technology or the different levels of skill and knowledge of the sender and receiver. For example, every day in the press and on TV, consumers are bombarded with often confusing or contradictory information about the health benefits or risks associated with different foods. Consumers may not have enough understanding or information to judge between conflicting messages. It is therefore not surprising that many people do not hear these messages and switch off.A company has to overcome a considerable amount of direct noise caused by the earlier negative press articles. By not responding to these immediately or correcting with facts, consumers are confused and the company loses credibility with the press and the public.To achieve its vision and encourage consumers to eat turkey all year round, BM Company needs to give people more information in a way they can easily understand. It has there closed to highlight key facts about the products as the foundation for many of its messages.Why don;t many people hear the message that the companies want them to know?A.because they may not have enough understanding or information.B.because the messages are spread on newspapers.C.because they care more about health risks associated with different foodsD.not mentioned
Management information systems form a bedrock ofIT use in the public sector.They are therefore found in all sections ofthe public sector and in all countries..Of course，different people use the term"management information system"differently:The term should therefore not form the basis for arguments about__（请作答此空）__an MIS is and is not.So long as one and those with whom one works understand and agree on a definition，that is good enough.Similarly，when dealing with written material，one needs to be able to__（ ）__and communicate，not get locked into doctrinal debate，Many public service providers have developed management information systems to morutor and control the services that they provide.Both the US__（ ）__UK Social Security agencies have developed MIS to report on the welfare payments and services that they provide.The British public healthcare system has also been a major investor in MIS as it 1ries to control healthcare costs and simultaneously improve delivery standards.Individual schools can also__（ ）__use ofMIS.Hobmoor Junior and Infant School，a public school in Birmingham，UK，introduced a computerised attendance system to produce MIS reports that monitor pupil attendance.This improved the Principal’s ability to understand and control absence patterns，resulting in a 2.5 per cent__（ ）__in attendance rates.A.whatB.thatC.whichD.this
Some people simply can't take it and they just go insane.A: reasonableB: sensibleC: crazyD: unbelievable
They already guide blind and disabled people; now dogs are to be trained to help people with dementia (痴呆). The duties of these "guide dogs for the mind" will include reminding their owners to take medication, as well as encouraging them to eat, drink and sleep at regular intervals.The dementia dogs will be trained to respond to sound triggers in the home that prompt them to perform tasks. These could include delivering a bite-proof bag of medicine with a note inside reminding the patient to take it, or waking them up in the morning.The idea was developed by design students at the Glasgow School of Art and will now be put into practice by Alzheimer"s Scotland and Dogs for the disabled.Joyce Gray of Alzheimer"s Scotland said, "People in the early stages of dementia are still able to live a relatively normal life, and dogs help to maintain routine."The other advantage of using the pets as companions is that conversation can be increasingly confusing for people with Alzheimer"s, but dogs can give them a sense of silent support and companionship. People light up when they see animals. They don"t need to communicate verbally but they can still interact. You can have a speechless bond.The dog would also encourage the owner to take them out for walks, ensuring they keep exercising and interacting with other people.The guide dogs helping the people with dementia will （）.A、respond to the owners" orderB、respond to a sound deviceC、act on the owners" instructionsD、act on the trainers" order
They already guide blind and disabled people; now dogs are to be trained to help people with dementia (痴呆). The duties of these "guide dogs for the mind" will include reminding their owners to take medication, as well as encouraging them to eat, drink and sleep at regular intervals.The dementia dogs will be trained to respond to sound triggers in the home that prompt them to perform tasks. These could include delivering a bite-proof bag of medicine with a note inside reminding the patient to take it, or waking them up in the morning.The idea was developed by design students at the Glasgow School of Art and will now be put into practice by Alzheimer"s Scotland and Dogs for the disabled.Joyce Gray of Alzheimer"s Scotland said, "People in the early stages of dementia are still able to live a relatively normal life, and dogs help to maintain routine."The other advantage of using the pets as companions is that conversation can be increasingly confusing for people with Alzheimer"s, but dogs can give them a sense of silent support and companionship. People light up when they see animals. They don"t need to communicate verbally but they can still interact. You can have a speechless bond.The dog would also encourage the owner to take them out for walks, ensuring they keep exercising and interacting with other people.Having a conversation with people with dementia will be （）.A、difficultB、interestingC、confusingD、encouraging
They already guide blind and disabled people; now dogs are to be trained to help people with dementia (痴呆). The duties of these "guide dogs for the mind" will include reminding their owners to take medication, as well as encouraging them to eat, drink and sleep at regular intervals.The dementia dogs will be trained to respond to sound triggers in the home that prompt them to perform tasks. These could include delivering a bite-proof bag of medicine with a note inside reminding the patient to take it, or waking them up in the morning.The idea was developed by design students at the Glasgow School of Art and will now be put into practice by Alzheimer"s Scotland and Dogs for the disabled.Joyce Gray of Alzheimer"s Scotland said, "People in the early stages of dementia are still able to live a relatively normal life, and dogs help to maintain routine."The other advantage of using the pets as companions is that conversation can be increasingly confusing for people with Alzheimer"s, but dogs can give them a sense of silent support and companionship. People light up when they see animals. They don"t need to communicate verbally but they can still interact. You can have a speechless bond.The dog would also encourage the owner to take them out for walks, ensuring they keep exercising and interacting with other people.Who will train the dogs to perform such tasksA、The students who developed the idea.B、The owners of the dogs.C、The experts in Alzheimer"s Scotland.D、It is not mentioned in the passage.
问答题Practice 11 Think carefully about the issue presented in the following excerpt and the assignment below. It is easy to make judgments about people and their actions when we do not know anything about their circumstances or what motivated them to take those actions. But we should look beyond a person’s actions. When people do things that we consider outrageous, inconsiderate, or harmful, we should try to understand why they acted as they did. Assignment: Is it important to try to understand people’s motivations before judging their actions? Plan and write an essay in which you develop your point of view on this issue. Support your position with reasoning and examples taken from your reading, studies, experience, or observation.
单选题They already guide blind and disabled people; now dogs are to be trained to help people with dementia (痴呆). The duties of these "guide dogs for the mind" will include reminding their owners to take medication, as well as encouraging them to eat, drink and sleep at regular intervals. The dementia dogs will be trained to respond to sound triggers in the home that prompt them to perform tasks. These could include delivering a bite-proof bag of medicine with a note inside reminding the patient to take it, or waking them up in the morning. The idea was developed by design students at the Glasgow School of Art and will now be put into practice by Alzheimer"s Scotland and Dogs for the disabled. Joyce Gray of Alzheimer"s Scotland said, "People in the early stages of dementia are still able to live a relatively normal life, and dogs help to maintain routine." The other advantage of using the pets as companions is that conversation can be increasingly confusing for people with Alzheimer"s, but dogs can give them a sense of silent support and companionship. People light up when they see animals. They don"t need to communicate verbally but they can still interact. You can have a speechless bond. The dog would also encourage the owner to take them out for walks, ensuring they keep exercising and interacting with other people.What is true about the people suffering from dementiaAThey would like to stay with other people.BThey can maintain routine.CThey will gradually lose the ability to live a normal life.DThey would like to talk in a different way.
单选题According to the passage sport is positive for young people in that _____.Ait can help them learn more about societyBit teaches them how to set realistic goals for themselvesCit enables them to find flaws in themselvesDit can provide them with valuable experiences
单选题Can your brother and sister understand the English teacher? No,______of them can.Anot eitherBnot oneCneitherDno one
单选题They already guide blind and disabled people; now dogs are to be trained to help people with dementia (痴呆). The duties of these "guide dogs for the mind" will include reminding their owners to take medication, as well as encouraging them to eat, drink and sleep at regular intervals.The dementia dogs will be trained to respond to sound triggers in the home that prompt them to perform tasks. These could include delivering a bite-proof bag of medicine with a note inside reminding the patient to take it, or waking them up in the morning.The idea was developed by design students at the Glasgow School of Art and will now be put into practice by Alzheimer"s Scotland and Dogs for the disabled.Joyce Gray of Alzheimer"s Scotland said, "People in the early stages of dementia are still able to live a relatively normal life, and dogs help to maintain routine."The other advantage of using the pets as companions is that conversation can be increasingly confusing for people with Alzheimer"s, but dogs can give them a sense of silent support and companionship. People light up when they see animals. They don"t need to communicate verbally but they can still interact. You can have a speechless bond.The dog would also encourage the owner to take them out for walks, ensuring they keep exercising and interacting with other people.As is mentioned in the passage, the guide dogs will do the following except for （）.Ahelping ensure the owner doing some exercisesBreminding the owner to take medicineCcommunicating with the owner in a non-verbal wayDhelping the owner recover from the illness
问答题We live in a society which there is a lot of talk about science, but I would 1．______say that there are not 5 percent of the people who are equipped with schooling,including college, to understand scientific reasoning. We are more ignorant ofscience than people with comparable education in Western Europe. ?2．______There are a lot of kids who know everything about computers — how tobuild them, how to take them apart, and how to write programs for games. So ? ? 3．______if you ask them to explain about the principles of physics that have gone into ? ?4．______creating the computer, you don’t have the faintest idea. ? ? 5．______ The failure to understand science leads to such things like the neglect of ? ?6．______human creative power. It also takes rise to blurring of the distinction between ? 7．______science and technology. Lots of people don’t differ between the two. Science is the 8．______production of new knowledge that can be applied or not, and technology is theapplication of knowledge to the production of some products, machinery or thelike. The two are really very different, and people who have the faculty for onevery seldom have a faculty for the others. ?9．______Science in itself is harmless, more or less. But as soon as it can providetechnology, it is not necessarily harmful. No society has yet learned to forecast 10．______the consequences of new technology, which can be enormous.
单选题Phrase structure rules allow us to better understand _____.Ahow people produce and recognize possible sentencesBwhat constitutes the grammaticality of strings of wordsChow words and phrases form sentencesDAll of the above