单选题In the ______of the hurricane, many people's homes were destroyed.

单选题Living with a roommate ______ constraint on her, she couldn't play her trumpet or have parties late at night. A. imposing B. illustrating C. impressing D. leaving

单选题I wish that you ______ such a bad headache because I'm sure that you would have enjoyed the concert．A．hadn'tB．didn't have hadC．hadn't hadD．hadn't have

单选题I" m in the unusual position of being both a computer scientist and a professional musician. On the computer side, I" m best known for my work in virtual reality, a term I coined in the early 1980s. As a musician I write, perform, and record my own work. Canons for Wroclaw, a concerto I created for virtual instruments, was performed last December by the Chamber Orchestra of Wroclaw, Poland. All of this means that I have a few deeply felt ideas about Napster, the free software millions of people use to share their music collections over the Internet. Big media companies see Napster as theft because they can" t collect royalties when people use it. So they have asked the courts to kill it. As I write this, a settlement seems to be emerging. Napster will probably begin to charge for its services and pay royalties to at least some record companies. Whatever happens, the legal decisions surrounding Napster are important for reasons that transcend the music business and extend to our basic concepts of what it means to be free in a democracy. I believe the anti-Napster forces have failed to foresee dangerous implications of their course of action. They aren" t thinking about the harsh logic at the core of this technology. They do not understand what I call the Law of the Excluded Digital Middle; Digital tools can be either open or closed but resist being anything in between. An open digital tool is one that can be used in unforeseen ways. A tool like e-mail, meant to send text, might also—surprisingly—be used to send music. A closed tool is one in which there are technical restrictions that prevent unforeseen uses. The advantage of open tools is that more people can create new things with them; consequently, they tend to be more innovative. Closed tools are usually created because it is thought they will be more profitable; An owner can control them well enough to enforce bill collection. Of course, the open software movement energetically promotes the idea that innovation ends up generating more money than control does.

单选题The list of famous companies founded during economic downturns is long and varied. A 2009 study found that over half of Fortune 500 companies got their start during a downturn or a bear market. A recession, it seems, may not be an entirely bad time to start a company. Indeed, busts (and booms) cast a longer shadow on the business landscape than is commonly realised, because they influence both the rate of business formation and how existing firms are run. Some argue that recessions speed up the process of economic restructuring—what Joseph Schumpeter called " creative destruction ". The destruction part is easy to see: downturns kill businesses, leaving boarded-up windows on the high street as their gravestones. But recessions may also spur the creation of new businesses. When people suddenly have less money to spend, clever entrepreneurs may see an opportunity to set up businesses that give them what they want more cheaply or efficiently. Downturns may also swell the ranks of potential firm creators, because many who might otherwise have sought a stable salary will reinvent themselves as entrepreneurs. Tough times do not suddenly prompt everyone to start a business. The vast majority of people who reach working age during a downturn still look for a job. But research also suggests that recessions have lasting effects on how executives manage businesses. Antoinette Schoar and Luo Zuo of the Massachusetts Institute of Technology found that those who began their management careers during a bust were substantially more risk-averse, took on less debt and generally were more conservative managers than the rest of the sample, even many decades later. That will strike critics of the over-leveraged company as thoroughly good news, but it is hard to say whether this effect is entirely benign. Bosses whose careers began in a recession also tend to be so concerned about cost-effectiveness that the companies they go on to run spend less on research and development. They may thus be too conservative: firms with bosses whose professional baptism came in a weak economy have lower returns on assets than those run by other managers. Why should this be? One plausible explanation is that recessions affect the way people take decisions. Whether they were set up during a boom or a bust, today"s firms are deeply affected by the economic fluctuations of the past.

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单选题How many cities had a temperature below 0° sometimes during the day?

单选题Sometimes this ______ understanding may lead to more practical solutions. A. worked B. shared C. cut D. joined

单选题Wre sent a telegram yesterday as we______any letter from him for a long time.

单选题Energy will be one of the defining issues of this century. One thing is clear: the era of (1) oil is over. What we all do next will determine how well we meet the energy needs of the entire world in this century and (2) . Demand is soaring like (3) before. As populations grow and economies (4) , millions in the developing world are enjoying the benefits of a lifestyle that (5) increasing amounts of energy. In fact, some say that in 20 years the world will (6) 40% more oil than it does today. At the same time, many of the world's oil and gas fields are (7) . And new energy discoveries are mainly occurring in places where resources are difficult to (8) , physically, economically and even politically. When growing demand meets (9) supplies, the result is more (10) for the same resources. We can wait until a crisis forces us to do something. (11) we can (12) to working together, and start by asking the (13) questions: How do we meet the energy needs of the developing world and those of industrialized nations? What role will renewables and (14) energies play? What is the best way to protect our environment? How do we accelerate our conservation efforts? (15) actions we take, we must look not just to next year, (16) to the next 50 years. At Chevron, we believe that innovation, collaboration and conservation are the (17) on which to build this new world. We cannot do this alone. Corporations, governments and every citizen of this planet must be part of the solution as (18) as they are part of the problem. We (19) scientists and educators, politicians and policy-makers, environmentalists, leaders of industry and each one of you to be part of (20) the next era of energy.

单选题Professor: First of all, allow me to introduce Professor John, Brown from Cambridge. Student: ______

单选题As photographic techniques have become more sophisticated, the scope of their application has expanded______.

单选题In some countries where racial prejudice is acute, violence has so come to be taken for granted as a means of solving differences, that it is not even questioned. There are countries where the white man imposes his rule by brute force; there are countries where the black man protests by setting fire to cities and by looting and pillaging. Important people on both sides who would in other respects appear to be reasonable men, get up and calmly argue in favor of violence—as if it were a legitimate solution, like any other. What is really frightening, what really fills you with despair, is the realization that when it comes to the crunch, we have made no actual progress at all. We may wear collars and ties instead of war-paint, but our instincts remain basically unchanged. The whole of the recorded history of the human race, that tedious documentation of violence, has taught us absolutely nothing. We have still not learnt that violence never solves a problem but makes it more acute. The sheer horror, the bloodshed and the suffering mean nothing. No solution ever comes to light the morning after when we dismally contemplate the smoking ruins and wonder what hit us. The truly reasonable men who know where the solutions lie are finding it harder and harder to get a hearing. They are despised, mistrusted and even persecuted by their own kind because they advocate such apparently outrageous things as law enforcement. If half the energy that goes into violent acts were put to good use, if our efforts were directed at cleaning up the slums and ghettos, at improving living-standards and providing education and employment for all, we would have gone a long way to arriving at a solution. Our strength is undermined by having to mop up the mess that violence leaves in its wake. In a well-directed effort, it would not be impossible to fulfill the ideals of a stable social program. The benefits that can be derived from constructive solutions are everywhere apparent in the world around us. Genuine and lasting solutions are always possible, providing we work within the framework of the law. Before we can even begin to contemplate peaceful co-existence between the races, we must appreciate each other"s problems. And to do this, we must learn about them: it is a simple exercise in communication, in exchanging information. "Talk, talk, talk," the advocates of violence say, "all you ever do is talk, and we are none the wiser." It"s rather like the story of the famous barrister who painstakingly explained his case to the judge. After listening to a lengthy argument the judge complained that after all this talk, he was none the wiser. "Possible, my lord," the barrister replied, "none the wiser, but surely far better informed." Knowledge is the necessary prerequisite to wisdom; the knowledge that violence creates the evils it pretends to solve.

单选题After graduation, I was assigned to teach a writing class. Teaching was a profession I had never seriously considered, though several of my stories had been published. I accepted the job without hesitation, as it would allow me to wear a tie and go by the name of Mr. Davis. My father went by the same name, and I liked to imagine people getting the two of us confused. "Wait a minute" someone might say, "are you talking about Mr. Davis the retired man, or Mr. Davis the respectable scholar?" The position was offered at the last minute, and I was given two weeks to prepare, a period I spent searching for briefcase and standing before my full-length mirror, repeating the words, "Hello, class. I"m Mr. Davis." Sometimes I would give myself an aggressive voice. Sometimes I would sound experienced. But when the day eventually came, my nerves kicked in and the true Mr. Davis was there. I sounded not like a thoughtful professor, but rather a 12-year-old boy. I arrived in the classroom with paper cards designed in the shape of maple leaves. I had cut them myself out of orange construction paper. I saw nine students along a long table. I handed out the cards, and the students wrote down their names and fastened them to their breast pockets as I required. "All right then," I said. "Okay, here we go." Then I opened my briefcase and realized that I had never thought beyond this moment. I had been thinking that the students would be the first to talk, offering their thoughts and opinions on the events of the day. I had imagined that I would sit at the edge of the desk, overlooking a forest of hands. Every student would yell. "Calm down, you"ll all get your turn. One at a time, one at a time!" A terrible silence ruled the room, and seeing no other opinions, I inspected the students to pull out their notebooks and write a brief essay related to the theme of deep disappointment.

单选题Man: Anne, it's good to see you back. Do you remember when we were kids, we used to go swimming together?Woman: Yeah. I sure do. I really love this town and I have a lot good memories from here.Man: I want to tell you that we take a lot of pride in the gold medal you won and we are behind you one hundred percent.Question: What does the man think of the woman?

单选题Salesman: Good morning. Planning to buy a new Car today?Customer: ______.Salesman: What kind of car are you looking for?Customer: Something that has enough room for my family.

单选题She didn't watch the film last night, ______ ?

单选题Cillian Shephard is to announce a review of examination standards today as controversy surrounding university entrance procedures brings criticism over Britain's educational performance. The Education and Employment Secretary is worried that continuing uncertainty over a levels in particular will undermine the Government's drive to meet ambitious targets for improvement. She postponed an announcement until this year's candidates had received their results, but is now determined to clear the air. Mrs. Shepard's main advisers on schools have already asked her to sanction a 100,000 research project, comparing papers over the past 20 years. But she is expected to go further. Reports of universities admitting A-level failures to foundation courses will be referred to officials carrying out a review of higher education. Further research will focus on school examinations. Mrs. Shepard returned mm holiday last week to find critics chiming that a seventh successive rise in pass rates indicated falling standards at A level, while new vocational equivalents had an alarming drop-out rate. Since then, she has become embroiled in controversy over higher education admissions, insisting that it was not the role of universities to prepare students for degree courses. Yesterday a retired mathematics lecturer said he had been ordered to admit students to a foundation course after rejecting: them for a degree, David Srnalley, who teaches part-time at Brunel University in west London, said many of the students who were accepted subsequently would never be capable of degree-level mathematics. Mr. Smalley said a course for those without the necessary grades to study science had been set up earlier than planned when undergraduate recruitment dried up. He had been told to approach potential students from a pile of rejected applications. A university spokeswoman said students entering Brunel's foundation courses in science and engineering had an average of two Cs at A level, enough to win a place on many degree courses. Half of the first in take in engineering secured upper second class degrees alter passing the foundation year. But Mr. Smalley said he was convinced standards had plummeted since the introduction of pre-degree courses. "We have had one or two success stories on them, but others could not add fractions. Some of the work would make your hair curl." Ian Wood, who set up Brunel' s first foundation course, m engineering, said some older lecturers found it difficult to adapt to teaching less able students. He added: "This year 26 students out of 60 got through a foundation year and one ended up with a first-class degree. I am sure there are spurious courses elsewhere put on just to bump up numbers, but our standards are high." The Higher Education Funding Council for England said it had no reason to question standards on foundation courses.