单选题A: I'm exhausted. I had to work until 2 o'clock this morning.B: ______.

单选题All the key words in the article are printed in ______ type so as to attract readers" attention.

单选题Speaker A: Excuse me, Mr. Brown, but can I speak to you for a moment?Speaker B: ______

单选题St. Patrick's Day is celebrated on March 17, his religious feast day and the anniversary of his death in the fifth century. Legend has it that this patron saint had given a sermon from a hilltop that drove all the snakes from Ireland. He also used the three-leafed shamrock to represent the Trinity how the Father, the Son, and the Holy Spirit could all exist as separate elements of the same entity—and converted the pagans to Christianity. The Irish have observed this day as a religious holiday for hundreds of years. People wear green in memory of the Emerald Isle and wear shamrocks. The first St. Patrick's Day parade, however, took place not in Ireland, but in the United States. Irish soldiers serving in the English military marched through New York City on March 17, 1762. Along with their music, the parade helped the soldiers, as well as fellow Irishmen serving in the English army, to reconnect with their Irish roots. Over the next thirty-five years, Irish patriotism among American immigrants flourished, prompting the rise of so-called "Irish Aid" societies, like the Friendly Sons of Saint Patrick and the Hibernian Society. Each group would hold annual parades featuring bagpipes (which actually first became popular in the Scottish and English armies) and drums. Up until the mid-nineteenth century, most Irish immigrants in America were members of the Protestant middle class. When the Great Potato Famine hit Ireland in 1845, close to a million poor, uneducated, Catholic Irish began to pour into America to escape starvation. Despised for their religious beliefs and funny accents by the American Protestant majority, the immigrants had trouble finding even menial jobs. When Irish Americans in the country's cities took to the streets on St. Patrick's Day to celebrate their heritage, newspapers portrayed them in cartoons as drunk, violent monkeys. However, the Irish soon began to realize that their great numbers endowed them with a political power that had yet to be exploited. They started to organize, and their voting block, known as the "green machine," became an important swing vote for political hopefuls. Suddenly, annual St. Patrick's Day parades became a show of strength for Irish Americans, as well as a must-attend event for a slew of political candidates. In 1948, President Truman attended New York City's St. Patrick's Day parade, a proud moment for the many Irish whose ancestors had to fight stereotypes and racial prejudice to find acceptance in America.

单选题The man was wrongly arrested by the police mainly because they ______ the names given by the witness. A. perplexed B. puzzled C. confused D. combined

单选题US. researchers suggest sleeping call help us remember things we have just learnt. A team from Northwestern University 31 that a 90-minute nap(小睡)can help people learn a new skill. The 32 on their research is published in the June edition of the journal Nature. The scientists say:"Information acquired during waking can be reactivated (重新激活) during sleep, 33 memory stabilization." Test volunteers practiced musical tunes before and after a short sleep. 34 the nap, the researchers played one of the tunes the volunteers had practiced. The team found that the participants made 35 errors when playing the tune that had been played while they slept. Study co-author Dr. Pau J. Reuber points out the research might not work 36 learning a foreign language while you sleep. He said: "The critical 37 is that our research shows that memory is strengthened for something you"ve already learned." He added:"Rather than learning something 38 in your sleep, we"re talking about enhancing an existing memory by reactivating information recently acquired." 39 , Dr. Reuber did say there were possibilities for language learners: "If you were learning 40 to speak in a foreign language during the day, for example, and then tried to reactivate those memories during sleep, perhaps you might enhance your learning," he said.

单选题Dear Sirs, Your shipment of twelve thousand 'Smart' watches was received by our company this morning. However, we wish to make a number of complaints concerning the serious delay in delivery and your failure to carry out our specific instructions with regard to this order. It was stressed from the beginning that the delivery date had to be less than six weeks from the initial order in order to meet our own customers' requirements. While we understand that delays in production are occasionally inevitable, we must point out that the major reason why the order was placed with your company was because we were assured by you of its speed of delivery, and that your existing stocks were sufficiently high to ensure immediate shipment. Late delivery of the goods has caused US to disappoint several of our most valued customers, and is bound to have a negative effect on potential future orders. The second complaint concerns the difference in color between the watches we ordered and those delivered. It was stated clearly in the original order that watches in combinations of green/purple and orange/purple only were required. However, only half the watches in the delivery received are of the colors specified. Our Hong Kong agent assures US that she stressed to you the importance of following our instructions precisely, since we consider there to be only a limited market in this country for watches of other colors at the present time. Any watches that are not of the specified colors will, of course, be returned to you. We are also somewhat concerned about the rather poor quality of the goods received, since it is apparent that the watches that finally arrived have been produced from inferior materials and have been manufactured to a lower standard than those in the sample. We have also found that a number of the watches do not appear to be functioning. Whether the latter problem is due to poor manufacture, damage during transportation or bad batteries is not yet clear, but we should like to point out that we feel this matter to be entirely your responsibility. As a result of the above problems, therefore, we feel that the most suitable course of action is to return to you unpaid any of the goods considered unsatisfactory, and to subtract any resultant costs from our final settlement. We shall also, of course, be forced to reconsider whether any further orders should be placed with your company. We look forward to your prompt reply. Yours sincerely, John Smith

单选题She got very angry and ______ her clothes about in the room. A. flung B. flew C. clamped D. clashed

单选题As NASA prepares to set twin robots loose on the Martian surface and makes plans to send another in 2007, the agency's long term goal is clear: determine whether the red planet does or ever did harbor life. But the current search for life is necessarily limited to life as we know it, organisms dependent on liquid water. A SPACE. corn reader recently suggested that "We as humans are arrogant, simply believing that any other form of life will be just like us. " Researchers devoted to the search for extraterrestrial (ET) have a similar view. "Scientists' approach to finding life is very Earth-centric," says Kenneth Nealson, a geobiologist at the University of Southern California. "Based on what we know about life on Earth, we set the limits for where we might look on other planets," Nealson said. Within that framework, however, there are extreme cases of life on Earth that suggest the range of places to look on frigid Mars. Nealson and his colleagues recently found the most extreme sort of organism in a salty liquid lake under the permafrost of Siberia. The organism, named cryopegella, can exist at colder temperatures than any previously discovered. Nealson's team figures that if the ice at the polar caps of Mars warmed to liquid water, organisms like cryopegella could have awakened and repaired any damage that might have occurred to their various cellular components. That does not mean there are necessarily dormant microbes within the ice caps of Mars. But it does suggest a broader range of potential cradles for life. Other researchers agree, and a host of so-called "extremophile" discoveries on Earth in recent years indicate the polar regions of Mars might be prime hunting grounds. As on Earth, organisms there might be slathered in natural antifreeze or be able to go dormant for tens of thousands of years, waiting for a brief thaw, their moment in the Sun. Meanwhile, scientists recognize that there could indeed be life elsewhere in the universe that does not require water. And some astrobiologists are trying to explore the possibilities. But it is a tough problem to approach. In looking for "life as we don't know it," it's hard to even imagine what to expect. Life might or might not exist on Mars. If there are critters there, they might or might not be like bacteria on Earth. In laboratory conditions, scientists in 2001 were able to get one-celled organisms to incorporate an amino acid—a fundamental building block of life—that no other known life uses. The discovery borders on the creation of artificial life, experts said. It also suggests that ET might operate by entirely different rules than those we're used to. If life on Mars is fundamentally different from what scientists understand life to be, then current spacecraft and others in the works may well not recognize what's right under their mechanical noses.

单选题Speaker A: Thank you for everything you've done for me during my stay here. Speaker B:______

单选题A: ______.B: My head aches and I've got a sore throat, too. A. How are you today? B. How is every thing going? C. What's happening? D. What seems to be the trouble?

单选题Woman: Hi, Michael. I can hardly recognize you. Why are you dressed up today? Are you going to the theatre?Man: No. Actually, I just had an interview at a photo studio this morning.Question: What do we learn about Michael from this conversation?

单选题The annual flooding is caused by melting snows on the high Ethiopian Plateau, from which the Nile ______.

单选题M: More and more youngsters are interested in the cause of public good. W: I think the government should keep the pot boiling. Q: According to the woman, what should the government do?

单选题______, a man who expresses himself effectively is sure to succeed more rapidly than a man whose command of language is poor. A. Other things being equal B. To be equal in other things C. Were other things equal D. Other things to be equal

单选题A man's shopping can be and often is completed in five minutes, which is only less than a quarter______

单选题England is not a big country., from north to south and from east to west it is only about three hundred miles across. But for a small country it has a surprising range of climate. People who have never visited England, or who have visited only one part of it, often make the mistake of thinking that it is a cold and wet country. Except for the summer months of June to Septem-ber, this is probably true of the north of England and the Midlands. In the south, however, the climate is much more pleasant. One result is that when people retire from a job in the north they often prefer to move down to the milder south. Perhaps the warmest part of the country is the southwest, which consists of the counties of Devon and Cornwall. The warm Gulf Stream flows across the North Atlantic Ocean from the Gulf of Mexico and makes the coastal regions of the southwest quite warm. Palm trees, bamboo (竹) and many semitropical (亚热带的) plants grow well in the southwest of England. Flowers and vegetables ripen (成熟) as much as a month earlier than those elsewhere. Farmers in the area obtain a higher price for their vegetables and flowers because they are ready earlier. In winter there may be several feet of snow in other parts of England but there will probably be no snow at all in the southwest. This may be one of the reasons why the southwest is one of England"s most popular holiday areas.

单选题Woman: I can't stand him any more. So picky and fussy! Man: What can you say? He pays for your bread. Question: What does the man mean? A. The woman can make a suggestion. B. The woman have to tolerate her boss. C. The woman needs to pay for her own bread. D. The woman doesn't understand the situation.

单选题I have been offered the appointment, ______ to my passing a medical examination. A. dependent B. conditional C. provisional D. subject

单选题As ordinary people, scientists are by no means more honest or ______ than other people, but as scientist, they attach special value to honest while they are in their working sphere. A. ethical B. ethnic C. aesthetic D. esthetic