单选题The house was very quiet,______as it was on the side of a mountain.(中国矿业大学2010年试题)

单选题Since the energy crisis, these big cars have become a real liability .Thev cost too much to run.(2004年秋季电子科技大学考博试题)

单选题 I've heard many students and professionals express a desire to take a speed reading course so they can increase their knowledge at a faster rate. But the information I've {{U}} {{U}} 1 {{/U}} {{/U}}over the last few years {{U}} {{U}} 2 {{/U}} {{/U}}me to believe that "speed reading" may be less useful than most people think. Don't push yourself to read at a(n){{U}} {{U}} 3 {{/U}} {{/U}}pace. The claim that you can read and fully {{U}} {{U}} 4 {{/U}} {{/U}}2,000 or 3,000 words per minute is a(n){{U}} {{U}} 5 {{/U}} {{/U}}exaggeration. One researcher proved this in a study in which irrelevant and {{U}} {{U}} 6 {{/U}} {{/U}} sentences were added to a passage of writing. The "speed readers" who were tested didn't notice the irrelevant lines-the non-speed readers {{U}} {{U}} 7 {{/U}} {{/U}}them immediately. It was said that President Kennedy read three or four major daffy newspapers each morning in just a few minutes. But he {{U}} {{U}} 8 {{/U}} {{/U}}obtained all the information he needed from the headlines and topic paragraphs. I wish I could have {{U}} {{U}} 9 {{/U}} {{/U}}him after he completed his daily newspaper reading. I'm willing to {{U}} {{U}} 10 {{/U}} {{/U}}he would not have known most details revealed in the body of the articles-{{U}} {{U}} 11 {{/U}} {{/U}}those in stories he read completely. I suspect that's also true {{U}} {{U}} 12 {{/U}} {{/U}}most persons who make {{U}} {{U}} 13 {{/U}} {{/U}}to great reading speeds. I've never taken one of the reading courses that {{U}} {{U}} 14 {{/U}} {{/U}}to increase your reading pace astronomically, but I've spoken {{U}} {{U}} 15 {{/U}} {{/U}}to many persons who have. Virtually all of them felt the courses had been helpful but, {{U}} {{U}} 16 {{/U}} {{/U}}, didn't make them faster readers. My secretary used to teach a speed reading course for the personnel department of a large utility company. She told me the follow-up {{U}} {{U}} 17 {{/U}} {{/U}}indicated that employees who attended all 12 classes showed no {{U}} {{U}} 18 {{/U}} {{/U}}long-term improvement in their reading speed. She did add, {{U}} {{U}} 19 {{/U}} {{/U}}, that many company employees took the course to enhance their promotion opportunities, and it may well have {{U}} {{U}} 20 {{/U}} {{/U}}that purpose.

单选题Half the profits are______in a corporate account that can be drawn on only with stockholder consent.

单选题Samantha is just as rich ______ David.

单选题Since you've repaired my TV set, ______ is no need for me to buy a new one.A. thereB. itC. thisD. that

单选题Many theories concerning the causes of juvenile delinquency (crimes committed by young people) focus either on the individual or on society as the major contributing influence. Theories (51) on the individual suggest that children engage in criminal behavior (52) they were not sufficiently penalized for previous misdeeds or that they have learned criminal behavior through (53) with others. Theories focusing on the role of society suggest that children commit crimes in response to their failure to rise above their socioeconomic status, (54) as a rejection of middle-class values. Most theories of juvenile delinquency have focused on children from disadvantaged families, ignoring the fact that children from wealthy homes also commit crimes. The latter may commit crimes (55) lack of adequate parental control. All theories, however, are tentative and are (56) to criticism. Changes in the social structure may indirectly (57) juvenile crime rates. For example, changes in the economy that lead to fewer job opportunities for youth and rising unemployment (58) make gainful employment increasingly difficult to obtain. The resulting discontent may in turn lead more youths into criminal behavior. Families have also (59) changes these years. More families consist of one-parent households or two working parents; consequently, children are likely to have less supervision at home (60) was common in the traditional family structure. This lack of parental supervision is thought to be an influence on juvenile crime rates.

单选题Arrogance and pride are similar in meaning, but there is a(n)______difference between them. A. submerged B. indecisive C. indistinct D. subtle

单选题Very soon a computer will be able to teach you English. It will also be able to translate any language for you too. It"s just one more incredible result of the development of microprocessors-those tiny parts of a computer commonly known as "silicon chips". So give up going to classes, stop buying more textbooks and relax. In a couple of years you won"t need the international language of English. Already Texas instruments in the United States are developing an electronic translation machine. Imagine a Spanish secretary, for example, who wants to type a letter from the boss to a business man in Sweden. All he or she will have to do is this: first type the letter will appear on another television screen in Stockholm in perfect Swedish. And that"s not all. Soon a computer will be able to teach you English, if you really want to learn the language. You"ll sit in front of a television screen and practice endless structures. The computer will tell you when you are correct and when you are wrong. It will even talk to you because the silicon chips can change electrical impulses into sounds. And clever programmers can predict the responses you, the learner, are likely to make. So think of it. You will be able to teach yourself at your own pace. You will waste very little time, and you can work at home. And if after all that, you still can"t speak English you can always use the translating machine. In a few years, therefore, perhaps there will be no need for BBC Modern English, or BBC English by Radio programs—no more textbooks or teachers of English. Instead of buying an exciting new textbook, the computer will ask you to replace it with microprocessor one thousand nine hundred and eighty-four. Fast, reliable and efficient language learning and translating facilities will be available to you. Think of that no more tears or embarrassing moments. One little problem is that a computer can"t laugh yet-but the scientists are working on it. Happy learning!

单选题Sally (must have called) her sister last night, but she (arrived) home (too late) to call (her).

单选题What's the chance______five heads when you toss a coin five times?

单选题Like many of my generation, I have a weakness for hero worship. At some point, however, we aU to question our heroes and our need for them. This leads us to ask: What is a hero? Despite immense differences in cultures, heroes around the world generally share a number of characteristics that instruct and inspire people. A hero does something worth talking about. A hero has a story of adventure to tell and community who will listen. But a few heroes beyond mere fame. Heroes serve powers or principles larger than themselves. Like high-voltage transformers, heroes take the energy of higher powers and step it down so that it can be used by ordinary The hero lives a life worthy of imitation. Those who imitate a genuine, hero experience life with new depth, enthusiasm, and meaning. A sure test for would-be heroes is what or whom do they serve? What are they willing to live and die for? If the answer or evidence suggests they serve only their own fame, they may be famous persons but not heroes. Madonna and Michael Jackson are famous, but who would claim that their fans find life more abundant? Heroes are catalysts (催化剂) for change. They have a vision from the mountaintop. They have the skill and the charm to move the masses. They create new possibilities. Without Gandhi, India might still be part of the British Empire. Without Rosa Parks and Martin Luther King, Jr., we might still have segregated (隔离的) buses, restaurants, and parks: It may be possible for largescale change to occur without leaders with magnetic personalities, but the pace of change would be slow, the vision uncertain, and the committee meetings endless.

单选题He took her hand and felt the scar on her thumb, ______of an accident with a kitchen knife in the early days of their marriage.

单选题The sign reads "in case of ______ fire, break the glass and push red button." A. /, a B. /, the C. the, the D. a, a

单选题Recently I stood in front of my class, observing an all-too-familiar scene. Most of my students were secretly—or so they thought—looking at their smart phones under their desks. As I called their attention, students" heads slowly lifted, their eyes reluctantly glancing forward. I then cheerfully explained that their next project would practice a skill they all desperately needed: holding a conversation. Several students looked confused. Others moved uneasily in their seats, waiting for me to stop watching the class so they could return to their phones. Even with plenty of practice, most kids were unable to converse effectively. They looked down at their hands. Some even reached for their phone—the last thing they should be doing. As I watched my class struggle, I came to realize that conversational competence might be the single-most overlooked skill we fail to teach students. Kids spend hours each day engaging with ideas and one another through screens--but rarely do they have an opportunity to truly practice their interpersonal communication skills. Admittedly, teenage awkwardness and nerves play a role in difficult conversations. But students, reliance on screens for communication is affecting their engagement in real-time talk. It might sound like a funny question, but we need to ask ourselves: Is there any 21st century skill more important than being able to hold a confident, coherent (连贯的) conversation? When students apply for colleges and jobs, they won"t conduct interviews through their smart phones. When they negotiate pay raises and discuss projects with employers, they should demonstrate a thoughtful presence and the ability to think on their feet. But in our rush to meet 21st—century demands，we aren’t asking students to think and communicate in real time. Online discussion boards and Twitter are useful tools for exchanging ideas. But they often encourage a "read, reflect, forget about it" response that doesn"t truly engage students in extended critical thinking or conversation. As Sherry Turkle writes, "We are tempted to think that our little "sips" of online connection add up to a big gulp (大口) of real conversation. But they don"t."

单选题Wealthy nations have fallen far behind on their aid ______ to the world's poor. A. commitments B. engagements C. responsibilities D. applications

单选题 Experts predict that China's healthcare market will have an annual growth of 6 to 8 per cent in the next few years, making it one of the potentially most prosperous. In Shanghai, annual medical expenditure is estimated to be 16 billion yuan (U. S. 93 billion). With an increasingly{{U}} (31) {{/U}}population, the growing consumption power and longer life{{U}} (32) {{/U}}of local residents, the medical market has great opportunities. However, limited medical resources cannot meet people's needs{{U}} (33) {{/U}}financial deficits in State-owned hospitals. {{U}}(34) {{/U}}, there is room for a range of different medical organizations. As is the case with many State-owned enterprises, public hospitals in the past half century have learned a lot of bad habits: {{U}}(35) {{/U}}management, over-staffing and bureaucratic operating procedures. Being a member of World Trade Organization (WTO), China has to{{U}} (36) {{/U}}its promise to open the health industry to foreign capital in coming years. By then, public hospitals will be facing fierce competition from Western giants they have never prepared for. So it's quite urgent{{U}} (37) {{/U}}them to learn how to operate as an enterprise and how to survive in the competitive market economy of the future. As a{{U}} (38) {{/U}}, the healthcare sector was first opened to domestic private investors. Since the first private hospital opened in 1999, private investors from Shenzhen, Sichuan and Zhejiang provinces have been scrambling to enter Shanghai. {{U}}(39) {{/U}}show that about 20 private hospitals have been set up in the city, although this number, {{U}}(40) {{/U}}with more than 500 public hospitals, is still quite low.