单选题 Although the top men in smuggling business must work together, most of a syndicate's small fry, specially the mules, know only their immediate contacts. If caught there is little they can give away. A mule probably will not even know the name of the person who gives him his instructions, nor how to get in touch with him. Usually he even does not know the person to whom he has to make delivery. He will be told just to sit tight in a certain hotel or bar until someone contacts him. In this way if he is blown, coming through airport customs he cannot unwittingly lead agents to the next link in the chain. All that the person at the receiving end do is to hang around the airport among the waiting crowd, and see that the mule comes through safely. If he does not, he is dimply written off as a loss. To make identification of mules easier, several syndicates have devised their own 'club ties' so that a mule wearing one can immediately be picked out. Mules often receive careful training before embarking on their first journey. One Beirut organization, for example, uses a room with three airline seats in it. There the trainee mules sit for hours on end wearing weighted smuggling vests beneath their clothes, so that they become accustomed to standing up after a long flight in a natural way, and without revealing what they are carrying. An outfit in Brussels maintained a comfortable apartment where the mules could relax and get a firm grip on themselves on the night before their first journey; they were helped to dress before setting out for the airport in the morning. More often than not a courier will not know precisely where he is going or what flight number is until he is actually handed his tickets at the airport. This prevents the careless boast in some bar or to a girl friend the night before. Mules occasionally run off with the goods to keep the profit themselves. As insurance against this, a syndicate often sends a high-up on the same plane to keep a wary eye on couriers, particularly new ones. Even then things can go badly wrong. One international currency smuggler who was having trouble getting money out of Britain was offered help by a group of men who said they were in a position to 'fix thing'—for a fee of course. Foolishly, the smuggler agreed to accept their help. When he got to London's Heathrow Airport, he handed over to one of the men a black suitcase containing nearly $90,000 in cash, destined for Frankfurt. Just to keep an eye on things, the smuggler went along on the same plane. When they landed at Frankfurt he was handed back his suitcase. He beat a straight path to the men's toilet, opened the case, and found only old clothes. The courier had switched suitcase en route, but the smuggler could hardly run to the police and complain that 'the man who was smuggling money out of England for me has stolen it.'

单选题 自驾游 自驾游(self-driving tour)属于自助旅游的一种，是近年来我国新兴的旅游方式。自驾游在选择目的地、参与程序和体验自由等方面给旅游者提供了伸缩自如的空间，与传统的参团旅游(group tour)相比具有本身的特点和魅力。随着自驾车旅游者的增多，自驾游市场已具规模，越来越多的旅行社、汽车俱乐部、汽车租赁(car rentals)公司看好并涉足这一市场的开发。

单选题Directions:Forthispart,youareallowed30minutestowriteashortessay.YoushouldstartyouressaywithabriefdescriptionofthepictureandthenwriteacompositiononGratitude.Youshouldwriteatleast120wordsbutnomorethan180words.WriteyouressayonAnswerSheet1.

单选题 In the Sierra Madre mountain range of west central Mexico, the native Huichol people live much the way their ancestors did—without electricity. That's because it's too expensive to string power lines to the remote mountain areas where they live. To help support themselves, the Huichol create beautiful artwork. They sell their art in cities hundreds of miles away from their villages. And without electricity—at home or on the road, they can only work during daylight hours. When it gets dark, they must stop whatever they're doing. Now, a team of scientists, designers, and architects is using new technologies to provide the Huichol with light after the sun sets. The scientists' technique involves weaving tiny electronic crystals into fabrics that can be made into clothes, bags, or other items. By collecting the sun's energy during the day, these lightweight fabrics provide bright white light at night. Their inventors have named the fabrics 'Portable Lights'. Portable Lights have the potential to transform the lives of people without electricity around the world, says project leader Sheila Kennedy. 'Our invention,' Kennedy says, 'came from seeing how we could transform technology we saw every day in the United States and move it into new markets for people who didn't have a lot of money.' At the core of Portable Light technology are devices called high-brightness light-emitting diodes, or HB LEDs. These tiny lights appear in digital clocks, televisions, and streetlights. LEDs are completely different from the light bulbs. Most of those glass bulbs belong to a type called incandescent lights. Inside, electricity heats a metal coil to about 2,200 degrees Celsius. At that temperature, bulbs give off light we can see. Ninety percent of energy produced by incandescent lights, however, is heat—and invisible. With all that wasted energy, bulbs burn out quickly. They are also easily broken. LEDs, on the other hand, are like tiny pieces of rock made up of molecules that are arranged in a crystal structure. When an electric current passes through an LED, the crystal structure produces light. Unlike incandescent bulbs, they can produce light of various colors. Within an LED, the type of molecules and their particular arrangement determine what color is produced.

单选题 Directions: For this part, you are allowed 30 minutes to write a campaign speech in support of your election to the post of chairman of the Student Union. You should write at least 120 words following the outline given below in Chinese. 1.人们随时都会面临挑战； 2.每个人对待挑战的方式不同； 3.你认为该如何应对挑战。

单选题 Educators today are more and more often heard to say that computer literacy is absolutely necessary for college students. Many even argue that each incoming freshman should have permanent access to his or her own microcomputer. What advantages do computers offer the college students? Any student who has used a word processor will know one compelling reason to use a computer: to write papers. Although not all students feel comfortable composing on a word processor, most find revising and editing much easier on it. One can alter, insert, or delete just by pressing a few keys, thus eliminating the need to rewrite or re-type. Furthermore, since the revision process is less burdensome, students are more likely to revise as often as is necessary to end up with the best paper possible. For these reasons, many freshman English courses require the use of a word processor. Computers are also useful in the context of language courses, where they are used to drill students in basic skills. Software programs reinforce ESL(English as a Second Language) instruction, as well as instruction in French, German, Spanish, and other languages. By using these programs on a regular basis, students can improve their proficiency in a language while proceeding at their own pace. Science students take advantage of computers in many ways. Using computer graphic capabilities, for example, botany students can represent and analyze different plant growth patterns. Medical students can learn to interpret computerized images of internal body structures. Physics students can complete complex calculations far more quickly than they could without the use of computer. Similarly, business and accounting students find that computer spreadsheet programs are all but indispensable to many aspects of their work, while students pursuing careers in graphic arts, marketing, and public relations find that knowledge of computer graphic is important. Education majors learn to develop grading systems using computers, while social science students use computers for analyzing and graphically displacing their research results. It is no wonder, then, that educators support the purchase and use of microcomputers by students. A versatile tool, the computer can help students learn. And that is, after all, the reason for going to college.

单选题 A decade ago, the idea that the planet was warming up as a result of human activity was largely theoretical. We knew that since the Industrial Revolution began in the 18th century, factories and power plants and automobiles and farms have been loading the atmosphere with heat-trapping gases, including carbon dioxide and methane (甲烷). But evidence that the climate was actually getting hotter was still murky. Not anymore. As an authoritative report issued a few weeks ago by the United Nations-sponsored Intergovernmental Panel on Climate Change makes plain, the trend toward a warmer world has unquestionably begun. Worldwide temperatures have climbed more than 0.5℃ over the past century, and the 1990s were the hottest decade on record. After analyzing data going back at least two decades on everything from air and ocean temperatures to the spread and retreat of wildlife, the IPCC asserts that this slow but steady warming has had an impact on no fewer than 420 physical processes and animals and plant species in all countries. Glaciers (冰川), including the legendary snows of Kilimanjaro, are disappearing from mountaintops around the globe. Coral reefs are dying off as the seas get too warm for comfort. Drought is the norm in parts of Asian and Africa. El Nino (厄尔尼诺) events, which trigger devastating weather in the eastern Pacific, are more frequent. The Arctic permafrost (永久冻土带) is starting to melt. Lakes and rivers in colder climates are freezing later and thawing earlier each year. Plants and animals are shifting their ranges pole-ward and to higher altitudes, and migration patterns for animals as diverse as polar bears, butterflies and beluga whales are being disrupted.