The dilemmas created by the use of internet may be about all

【名词&注释】

心电图(electrocardiogram)、有利于(beneficial to)、分析家(analyst)、外星人(extraterrestrial)、不同意(disagree)、月牙形(crescent)

[单选题]The dilemmas created by the use of internet may be about all of the following aspects，except__________．

阅读材料，回答下面的题目。The New Technology ApplicationOn a more mundane level, third-generation mobile telephones, despite all the delays and the billions squandered on 3G licenses by telecom firms, are still expected to offer consumers high-speed, always on mobile internet access, complete with video, in the next few years.Rapidly proliferating "WiFi" networks already offer wireless access on a local basis. Tiny tracking chips called radio-frequency identification devices are being used as pet passports.Soon they will be small, powerful and cheap enough to be implanted into everything form humans to milkcartons recording and transmitting real-time medical data, or serving as a form of inventory control.Sensors of every kind, including video cameras, should also become much smaller and cheaper.Forrester Research, a technology consultancy, predicts that 14 billion such devices will be connected to the internet by 2005.How rapidly such new technology is introduced will depend on a number of factors the state of the economy, the supply of investment capital and the appetite of consumers for new products or services ! Fortunes will be made and lost many times over.But whatever happens, the power of computing and communications look set to continue to grow, and its price to fall, at a steady rate for the next few decades.That will make it possible, at least in rich countries, to record most human interactions, wherever and whenever they take place, and to store and analyze this ocean of data at low cost.For the sake of argument, this survey will assume that we are heading towards a networked society of ubiquitous, mobile Communication capable of constant monitoring.Whether this arrives in 20,30 or 40 years does not really matter.The point is that the destination seems not merely possible, but probable, so it is not toosoon to ask: What do we want this technology to do?The internet has already thrown up a host of legal and political conundrums, but, these are only a small foretaste of the dilemmas about privacy, security, intellectual property and the nature of government itself that will have to be faced over the coming decades.The debate has already begun. This survey will outline some of main issues, and speculate on the way they are likely to go. Radio-frequency identification devices__________.

A. B

查看答案&解析 查看所有试题

学习资料：

[单选题]I tried very hard to persuade him to join our groups but I met with flat refusal.

A. disapproval
B. rejection
C. refusal
D. decline

[单选题]

回答下面的题目:The American FamilyIn the American family the husband and wife usually share important decision making. When the children are old enough, they take part_________(51). Foreigners are often surprised by the permissiveness of American parents. The old rule that "children should be seen and not heard" is rarely_________(52), and children are often allowed to do what they wish without strict parental_________(53). The father seldom expects his children to obey him_________(54) question, and children are encouraged to be independent_________(55) an early age. Some people believe that American parents carry this freedom_________(56) far. Others think that a strong father image would not_________(57) the American values of equality and independence. Because Americans emphasize the importance of independence, young people are expected to break_________(58) their parental families by the time they have_________(59) their late teens or early twenties. (60), not to do so is often regarded as a failure, a kind of weak dependence.This pattern of independence often results in serious_________(61) for the aging parents of a small family. The average American is expected to live(62) the age of 70. The job-retirement age is _________(63) 65. The children have left home, married, and_________(64) their own households. At least 20 percent of all people over 65 do not have enough retirement incomes. _________(65) the major problem of many elderly couples is not economic. They feel useless and lonely with neither an occupation nor a close family group.

A. But
B. Therefore
C. In contrast
D. Even if

[单选题]回答{TSE}题：ArchitectureArchitecture is to building as literature is to the printed word. The best buildings are often so well constructed that they outlast their original use. They then survive not only as beautiful objects， but as documents of the history of cultures. These achievements are never wholly the work of individuals. Architecture is a social art.The renaissance brought about an entirely new age， not only in philosophy and literature but in the visual arts as well. In architecture， the principles and styles of ancient Greece and Rome were brought back to life and reinterpreted. They remain dominant until the 20th century.Many kinds of stone are used as building materials. Stone and marble were chosen for important monuments because they are not burnable and can be expected to endure. Stone architecture was often blended with stone sculpture. The use of stone has declined， however， because a number of other materials are more adaptable to industrial use.The complexity of modern life calls for a variety of building. More people live in mass housing and go to work in large office buildings; they spend their income in large shopping centers， send their children to many different kinds of schools， and when they are sick they go to specialized hospitals and clinics. All theses different types of buildings accumulated experiences needed by their designers.By the middle of the 20th century， modern architecture， which was influenced by new technology and mass production， was dealing with increasingly complex social needs. Important characteristics of modern architectural works are expanses of glass and the use of reinforced concrete. Advances in elevator technology， air conditioning， and electric lighting have all had important effects.{TS}Paragraph 2_____________.

A. C

[单选题]According to the passage, the recent growth in air travel has meant that__________

根据以下材料回答下面的题目：Academic MobilityScholars and students have always been great travelers. "Academic mobility" is now often stated as a fundamental necessity for economic and social progress in the world, but it is certainly nothing new. Serious students were always ready to go abroad in search of the most stimulating teachers and the most famous academies; in search of the purest philosophy, the most effective medicine, the likeliest road to gold.Mobility of this kind means also mobility of ideas, their transference across frontiers, their simultaneous impact upon many groups of people. The point of learning is to share it, whether with students or with colleagues; one presumes that only eccentrics have an interest in being credited with a startling discovery, or a new technique. It must also have been reassured to know that other people in other parts of the world were about to make the same discovery or were thinking along the same lines, and that one was not quite alone, confronted by inquisition, ridicule or neglect.In the twentieth century, and particularly in the last twenty years, the old footpaths of the wandering scholars have become vast highways. The vehicle which has made this possible has of course been the aero plane, making contact between scholars even in most distant places immediately feasible, and providing for the very rapid transmission of knowledge. Apart from the vehicle itself, it is fairly easy to identify the main factors which have brought about the recent explosion in academic movement. Some of these are purely quantitative and require no further mention: there are far more centers of leaming, and a far greater number of scholars and students.In addition, one must recognize the very considerable multiplication of disciplines, particularly in the sciences, which by widening the total area of advanced studies has produced an enormous number of specialists whose particular interests ale precisely defined. These people would work in some isolation if they were not able to keep in touch with similar isolated groups in other countries.It can be concluded from the passage that "academic mobility"__________

A. travel around the world becomes realistic and affordable
B. more students from remote areas can attend universities
C. all kinds of information can be shared by more people
D. scholars can meet each other more easily

[单选题]第55题应选：

回答下面的题目:Exercise Being Good or BadCan exercise be a bad thing? Sudden death during or soon after strenuous exertion on the squash court or on the army training grounds, is not unheard of. 51 trained marathon runners are not immune to fatal heart attacks. But no one knows just 52 common these sudden deaths linked to exercise are. The registration andinvestigation of such 53 is very patchy; only a national survey could determine the true 54 of sudden deaths in sports. But the climate of medical opinion is shifting in 55 of exercise, for the person recovering from a heart attack as 56 as the average lazy individual. Training can help the victim of a heart attack bylowering the 57 of oxygen the heart needs at any given level of work 58 the patient can do more before reaching the point where chest pains indicate a heart starved of oxygen. The question is, should middle-aged people, 59 .particular, be screened for signs of heart disease before 60 vigorous exercise?Most cases of sudden death in sport are caused by lethal arrhythmias in the beating of the heart, often in people 61 undiagnosed coronary heart disease. In North America 62 over 35 is advised to have a physical check-up and even an exercise electrocardiogram. The British, on the whole, think all this testing isunnecessary. Not many people die from exercise, 63 , and ECGs ( 心电图 ) are notoriously inaccurate. However, two medical cardiologists at the Victoria Infirmary in Glasgow, advocate screening by exercise ECG for people over 40, or younger people 64 at risk of developing coronary heart disease. Individuals showing a particular abnormality in their ECGs 65 , they say, a 10 to 20 times greater risk of subsequently developing signs of coronary heart disease, or of sudden death.第51题应选：

A. favor
B. positive
C. inclination
D. indication

[单选题]请在第__57__处填上正确答案。

根据材料，完成下面的题目。UFOS       Sixty years ago, a. man named Kenneth Arnold saw something that we can still (51) today -- something that changed popular culture for ever.Flying his plane over mountains in the U. S. state of Washington, he saw a,line of strange objects, either crescent-shaped (月牙形^(crescent)的) or disc-like, flying (52) the motion of a saucer (碟) skimming (飞速掠过) on water.       The media soon picked up on the story -- the Flying Saucers were here] Was the earth being (53) by creatures from another planet? Soon, So many sightings were made that the U. S. military began to (54) It called these strange Objects UFOs – Unidentified Flying Objects, and that is how they are (55) today.       Military investigations found no evidence of visitors from outer space. But that did not stop the true (56) The military were (57) up, they said. Or maybe it was because the travelers from space were of such superior intelligence (58) they could hide from military analysts (分析家).People have always seen strange lights in the sky. In the past these were explained in (59) ways. In a world where religion was less influential and science fiction was popular, signs from God were replaced by visitors from other (60).       The date of the first UFO sightings was also significant. In 1947, World War II had just ended and the (61) War was just .beginning. Humanity seemed locked in endless conflicts. Like generations before them, people looked (62) the skies for help. But instead of seeking God, they looked for help from super-intelligent aliens (外星人) with (63) technology. Belief in UFOs became the first religion of science.However, even people who believe in UFOs are not quite sure why they visit the earth.The universe is a big place and it is (64) to assume that there is life somewhere out there. It is possible that aliens have worked out how to travel through space. Yet some people report that they have been taken by aliens and have had experiments (65) on them. Why would anyone travel across half the universe to conduct medical experiments on people living in small towns in the United States?请在第__51__处填上正确答案。

A. putting
B. covering
C. cheating
D. tricking

[单选题]It can be felt from the description in the 2nd paragraph that the author

根据以下资料，回答下面的题目。Snowflakes What does Professor Libbrecht believe to be true?

A. admires the beauty of the snowflakes．
B. dislikes the changing growth history of the snowflakes．
C. has a particular feeling for those flower—like crystals．
D. Iikes to compare snowflakes to the stars in the sky．

[单选题]请在第____处填上正确答案。

根据以下资料，回答下面的题目。 请在第____处填上正确答案。

A. D

[单选题]What can he inferred about completely normally fed mice mentioned in the passage?

根据以下资料，回答下面的题目。 According to the passage，which of the following is NOT true?

A. They will not experience free radical production．
B. They will experience more genetic rejuvenation in their lifetime．
C. They have more old liver genes to behave like young genes．
D. They are more likely to suffer from inflammation．

本文链接：https://www.51bdks.net/show/d8eed4.html