单选题{{I}}Questions 14 to 17 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions. Now listen to the passage.{{/I}}

单选题"Despite proving their grit in the two-month Ranger course, the two women are still unable to join infantry, armor and special forces units, but that could change after the Pentagon makes its recommendations." The modal auxiliary verb "could" in the sentence expresses ______.

单选题For some serious coin collectors, a coin with a different date, mintmark, and even a little ______ in design is counted as a different coin.[A] contrast[B] diversity[C] variation[D] variety

单选题 Questions 18 to 20 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions. Now, listen to the passage.

单选题Somehow California is always at the cutting edge, be it in the flower-power days of the 1960s or the dotcom boom of the 1990s. As Kevin Starr points out in his History of the State, California has long been "one of the prisms through which the American people, for better and for worse, could glimpse their future". Mr. Starr is too good a historian to offer any pat explanation; instead, he concentrates on the extraordinary array of people and events that have led from the mythical land of Queen Calafia, through the rule of Spain and Mexico, and on to the governorship of Arnold Schwarzenegger, an iron-pumping film star with an Austrian accent. Moreover, he does so with such elegance and humor that his book is a joy to read. What emerges is not all Californian sunshine and light. Think back to the savage violence that accompanied the 1849 Gold Rush; or to the exclusion orders against the Chinese; or to the riots that regularly marked industrial and social relations in San Francisco. California was very much the Wild West, having to wait until 1850 before it could force its way to statehood. So what tamed it? Mr. Starr's answer is a combination of great men, great ideas and great projects. He emphasizes the development of California's infrastructure, the development of agriculture; the spread of the railroads and freeways; and, perhaps the most important factor for today's hi-tech California, the creation of a superb set of public universities. All this, he writes, "began with water, the sine qua non of any civilization." He goes on cheerfully to note the "monumental damage to the environment" caused by irrigation projects that were "plagued by claims of deception, double-dealing and conflict of interest". One virtue of this book is its structure. Mr. Start is never trapped by his chronological framework. In-stead, when the subject demands it, he manages deftly to flit back and forth among the decades. Less satisfying is his account of California's cultural progress in the 19th and 20th centuries: does he really need to invoke so many long-forgotten writers to accompany such names as Jack London, Frank Norris, Mark Twain or Raymond Chandler? But that is a minor criticism for a book that will become a California classic. The regret is that Mr. Starr, doubtless pressed for space, leaves so little room--just a brief final chapter--for the implications of the past for California's future. He poses the question that most Americans prefer to gloss over: is California governable? "For all its impressive growth, there remains a volatility in the politics and governance of California, which became perfectly clear to the rest of the nation in the fall of 2003 when the voters of California recalled one governor and elected another." Indeed so, and Mr. Start wisely avoids making any premature judgment on their choice. Ills such as soaring house prices, grid locked freeways and "embattled" public schools, combined with the budgetary problems that stem from the tax revolt of 1978 would test to the limit any governor, even the Terminator. As Mr. Starr notes, no one should cite California as an unambiguous triumph: "There has al-ways been something slightly bipolar about California. It was either utopia or dystopia, a dream or a night-mare, a hope or a broken promise--and too infrequently anything in between./

单选题When she graduates from the university this summer, Mary ________ here for four years.A. will be studyingB. will have studiedC. will studyD. studies

单选题Older people are generally advised to______.

单选题Which of the following can be used to answer "Who called this morning"?

单选题Why was Towne's early work with stimulated emission done with microwaves?

单选题The author seems to Write his passage in a(n)______manner.

单选题Actually, how many new jobs will be needed during the next ten years to help support the world's workforce?

单选题I am one of the many city people who are always saying that given the choice we would prefer to live in the country away from the dirt and noise of a large city. I have managed to convince myself that if it weren"t for my job I would immediately head out for the open spaces and go back to nature in some sleepy village buried in the country. But how realistic is the dream? Cities can be frightening places. The majority of the population live in massive tower blocks, noisy, dirty and impersonal. The sense of belonging to a community tends to disappear when you live fifteen floors up. All you can see from your window is sky, or other blocks of flats. Children become aggressive and nervous—cooped up at home all day, with nowhere to play; their mothers feel isolated from the rest of the world. Strangely enough, whereas in the past the inhabitants of one street all knew each other, nowadays people on the same floor in tower blocks don"t even say hello to each other. Country life, on the other hand, differs from this kind of isolated existence in that a sense of community generally binds the inhabitants of small villages together. People have the advantage of knowing that there is always someone to turn to when they need help. But country life has disadvantages too. While it is true that you may be among friends in a village, it is also true that you are cut off from the exciting and important events that take place in cities. There"s little possibility of going to a new show or the latest movie. Shopping becomes a major problem, and for anything slightly out of the ordinary you have to go on an expedition to the nearest large town. The city-dweller who leaves for the country is often oppressed by a sense of unbearable stillness and quiet. What, then, is the answer? The country has the advantage of peace and quiet, but suffers from the disadvantage of being cut off; the city breeds a feeling of isolation, and constant noise batters the senses. But one of its main advantages is that you are at the centre of things, and that life doesn"t come to an end at half-past nine at night. Some people have found (or rather bought) a compromise between the two: they have expressed preference for the "quiet life" by leaving the suburbs and moving to villages within commuting distance of cities. They generally have about as much sensitivity as the plastic flowers they leave behind—they are polluted with strange ideas about change and improvement which they force on to the unwilling original inhabitants of the villages. What then of my dreams of leaning on a cottage gate and murmuring "morning" to the locals as they pass by. I"m keen on the idea, but you see there"s my cat, Toby. I"m not at all sure that he would take to all that fresh air and exercise in the long grass. I mean, can you see him mixing with all those hearty males down the farm? No, he would rather have the electric imitation-coal fire any evening.

单选题The layout can be finished the day after tomorrow at a ______, but that would mean I must lose my weekend.

单选题The task was very dangerous. But ______, we would be very famous.

单选题The old farmer was run down by a car. He was taken to the hospital and ______ on by the chief surgeon right now.

单选题What was the rule implied by the trail of the commander of the guards?

单选题We hadn't met for 8 years, but I recognized her ______ I saw her. A. the moment B. for the moment C. the moment when D. at the moment when