单选题The governor gave a rather {{U}}vague{{/U}} outline of his tax plan. A. unclear B. firm C. short D. neat

单选题The best olive oil is obtained from olives that are harvested just after they ripen.

单选题The town is notable for its beautiful scenery in winter. A. similar B. prompt C. profound D. famous

单选题Why does the author put "neutron star" in quotation marks?

单选题 阅读下面这篇短文，短文后列出了7个句子，请根据短文的内容对每个句子作出判断。如果该句提供的是正确信息，请选择A项：如果该句提供的是错误信息，清选择B项；如果该句的信息文章中没有提及，请选择C项。 {{B}}Rescue Platform{{/B}} In the aftermath of the terrorist attacks on the World Trade Center, security experts are trying to develop new ways of rescuing people from buming skysrapers. One idea is a platform capable of flying vertically and hovering in the air like a helicopter. The platform would rise up and down alongside a skyscraper and pick up people trapped in high stories. The idea for the vertical takeoff platform was hatched more than ten years ago by a Russian aerospace engineer, David Metreveli, who has since moved to Israel. Metreveli's dedsign, called the Eagle, calls for two jet engines that turn four large horizontal propellers. The spinning of the propellers generates the necessary lift, or upward force, to raise the platform. The more power is supplied to the propellers, the higher the platform rises. Moving the platform sideways involves applying differing amounts of power to each propeller. Helicopters are now used in some cases to get people out of buming buildings, Escape baskets slung from them dangle beside the building for people to climb into. Unfortunately, the baskets cannot reach every floor of a building because the ropes from which they hang become unstable beyond a certain length. So far, Metreveli has built a small-scale model of the Eagle to test his idea. In the wake of September 11, he has been able to secure enough funding to start building a larger, 4-meter by 4-meter prototype, which he calls the Eaglet.

单选题Media and Current Events The media can impact current events. As a graduate student at Berkeley in the 1960s, I remember experiencing the events related to the People"s Park that were occurring on campus. Some of these events were given national media coverage in the press and on TV. I found it interesting to compare my impressions of what was going on with perceptions obtained from the news media. I could begin to see events of that time feed on news coverage. This also provided me with some healthy insights into the distinctions between these realities. Electronic media are having a greater impact on the people"s lives every day. People gather more and more of their impressions from representations. Television and telephone communications are linking people to a global village, or what one writer calls the electronic city. Consider the information that television brings into your home every day. Consider also the contact you have with others simply by using telephone. These media extend your consciousness and your contact. For example, the video coverage of the 1989 San Francisco earthquake focused on "live action" such as the fires or the rescue efforts. This gave the viewer the impression of total disaster. Television coverage of the Iraqi War also developed an immediacy. CNN reported events as they happened. This coverage was distributed worldwide. Although most people were far away from these events, they developed some perception of these realities. In 1992, many people watched in horror as riots broke out on a sad Wednesday evening in Los Angeles, seemingly fed by video coverage from helicopters. This event was triggered by the verdict (裁定) in the Rodney King beating. We are now in an age where the public can have access to information that enables it to make its own judgments, and most people, who had seen the video of this beating, could not understand how the jury (陪审团) was able to acquit (宣布无罪) the policemen involved. Media coverage of events as they occur also provides powerful feedback that influences events. This can have harmful results, as it seemed on that Wednesday night in Los Angeles. By Friday night the public got to see Rodney King on television pleading, "Can we all get along?" By Saturday, television seemed to provide positive feedback as the Los Angeles riot turned out into a rally for peace. The television showed thousands of people marching with banners and cleaning tools. Because of that, many more people turned out to join the peaceful event they saw unfolding (展开) on television. The real healing, of course, will take much longer, but electronic media will continue to be a part of that process.

单选题Faster Effective Reading A higher reading rate, with no loss of comprehension, will help you in other subjects as well as in English, and the general principles apply to any language. Naturally, you will not read every book at the same speed. You would expect to read a newspaper, for example, much more rapidly than a physics or economics textbookbut you can raise your average reading speed over the whole range of materials you wish to cover so that the percentage (百分比) gained will be the same whatever kind of reading you are concerned with. The reading passages which follow are all of an average level of difficulty for your stage of instruction. They are all about five hundred words long. They are about topics of general interest which do not require a great deal of specialized knowledge. Thus they fall between the kind of reading you might find in your textbooks and the much less demanding kind you will find in a newspaper or light novel. If you read this kind of English, with understanding at, say, four hundred words per minute, you might drop to two hundred or two hundred and fifty. Perhaps you would like to know what reading speeds are common among native Englishspeaking university students and how those speeds can be improved. Tests in Minnesota, U. S. A, for example, have shown that students without special training can read English of average difficulty, for example, Tolstoy's War and Peace in translation, at speeds of between 240 and 250 words per minute with about seventy percent comprehension. Students in Minnesota claim that after twelve halfhour lessons, once a week, the reading speed can be increased, with no loss of comprehension, to around five hundred words per minute.

单选题An example of the endangered species that people often talk is the panda.A. worriedB. neglectedC. reducedD. mentioned

单选题These factors interact intimately and cannot be separated.

单选题Recycling Around the World Recycling is one of the best environmental success stories of the late 20th century. But we could do more. People must not see recycling .as fashionable, but essential. The Japanese are very good at recycling because they live in a crowded country. They do not have much space. They do not want to share their limited space with rubbish. But even so, Tokyo area alone is estimated to have three million tons of leftover rubbish at present. In 1996, the United States recycled and composted (制成肥料)57 million tons of waste (27% of the nation's solid waste). This is 57 million tons of waste which did not go into landfills and incinerators (焚化炉). In doing this, 7,000 rubbish collection programmes and recycling centres helped the authorities. In Rockford, a city in Illinois, US, its officials choose one house each week and check its garbage (废物). If the garbage does not contain any newspapers or aluminium (铝) cans, then the resident of the house gets a prize of at least $1,000. In Japan, certain cities give children weekly supplies of tissue paper and toilet paper in exchange for a weekly collection of newspapers. In one year Britain recycles: · 1 out of every 3 newspapers. · 1 out of every 4 glass bottles and jars (罐子). · 1 out of every 4 items of clothing. · 1 out of every 3 aluminium drink cans. In 1999, Hong Kong transported 1.3 million tons of waste to mainland China for recycling. Around 535,000 tons of waste were recycled in Hong Kong itself. Over half the things we throw away could be recycled. That means we could recycle 10 times as much as we do now. However, recycling needs a lot of organisation and special equipment. Also, there is not much use for some recycled material.

单选题The system is designed to be used in conjunction with a word processing program.

单选题Benjamin Franklin was not the first to {{U}}suggest{{/U}} the relationship between lightning and electricity, but his experiment with a kite was original.

单选题Which of the following does NOT fit the definition of the black hole?

单选题Many scientists have been probing psychological problems.

单选题Did anyone Ucall/U me when I was out?

单选题My piano playing has improved {{U}}significantly{{/U}} since I had a new teacher.

单选题Because of the popularity of the region, it is {{U}}advisable{{/U}} to book hotels in advance. A. possible B. profitable C. easy D. wise

单选题Fortified medieval towns were often {{U}}surrounded{{/U}} by two water moats.

单选题{{B}}第三篇{{/B}} Archaeology has long been an accepted tool for studying prehistoric cultures. Relatively recently the same techniques have been systematically applied to studies of the more immediate past. This has been called "historical archaeology", a term that is used in the United States to refer to any archaeological investigation into North American sites that postdate the arrival of Europeans. Back in the 1930's and 1940's, when building restoration was popular, historical archaeology was primarily a tool of architectural reconstruction. The role of archaeologists was to find the foundations of historic buildings and then take a back seat to architects. The mania for reconstruction had largely subsided by the 1950's and 1960's. Most people entering historical archaeology during this period came out of university anthropology departments where they had studied prehistoric cultures. They were, by training, social scientists, not historians, and their work tended to reflect this bias. The questions they framed and the techniques they used were designed to help them understand, as scientists, how people behaved. But because they were treading(踩,踏) on historical ground for which there was often extensive written documentation and because their own knowledge of these periods was usually limited, their contributions to American history remained circumscribed. Their reports, highly technical and sometimes poorly written, went unread. More recently, professional archaeologists have taken over. These researchers have sought to demonstrate that their work can be a valuable tool not only of science but also of history, providing fresh insights into the daily lives of ordinary people whose existences might nt otherwise be so well documented. This newer emphasis on archaeology as social history has shown great promise, and indeed work done in this area has led to a reinterpretation of the United States' past. In Kingston, New York, for example, evidence has been uncovered that indicates that English goods were being smuggled into that city at a time when the Dutch supposedly controlled trading in the area. And in Sacramento an excavation at the site of a fashionable nineteenth-century hotel revealed that garbage had been stashed(存放) in the building' s basement despite sanitation laws to the contrary.

单选题It was Uobvious/U that she was not going home.