单选题He told me to follow him with a gesture.

单选题I thought your mother ______ like something interesting to listen to, so I have brought her some newly-released records. [A] may [B] could [C] must [D] might

单选题In general, the amount that a student spends for housing should be held to one-fifth of the total available for living expenses.

单选题I"d take into account his reputation with other farmers and business people in the community, and then make a decision about whether or not to approve a loan.

单选题The mother was distressed by her son"s illness.

单选题—She was in class on Friday afternoon, but no one has seen her since.—She ______ an accident. A. might have B. might have had C. may have D. ought to have had

单选题I have lived near the railway for so long now that I"ve grown ______ to the noise of the trains.

单选题adventure

单选题What do you think of when you hear the word motherhood? If you are like most people, you associate motherhood with a number of positive characteristics, such as warmth, selflessness, dutifulness, and tolerance. And though most women expect that motherhood will be happy and fulfilling, the reality is that motherhood had been accorded relatively low prestige in our society. When stacked up against money, power, and achievement, motherhood unfortunately doesn't fare too well, and mothers rarely receive the appreciation they warrant. When children don't succeed or develop problems, our society has had a tendency to attribute the lack of success of the development of problems to a single source — mothers. One of psychology's most important lessons is that behavior is multiply determined. So it is with children's development; when development goes awry, mothers are not the single cause of the problems even though our society stereotypes them in this way. The reality of motherhood in the 1990s is that although fathers have increased their child-rearing responsibilities somewhat, the main responsibility for child-rearing still falls on the mother's shoulders. Mothers do far more family work than fathers do — two to three times more. A few "exceptional" men do as much family work as their wives; in one study the figure was 10 percent of the men. Not only do women do more family work than men, the family work most women do is unrelenting, repetitive, and routine, often involving cleaning, cooking, child care, shopping, laundry, and straightening up. The family work most men do is infrequent, irregular, and non-routine, often involving household repairs, taking out the garbage, and yard work. Women report that they often have to do several tasks at once, which helps to explain why they find domestic work less relaxing and more stressful than men do. Because family work is intertwined with love and embedded in family relations, it has complex and contradictory meanings. Most women feel that family tasks are mindless but essential. They usually enjoy tending to the needs of their loved ones and keeping the family going, even if they do not find the activities themselves enjoyable and fulfilling. Family work is both positive and negative for women. They are unsupervised and rarely criticized, they plan and control their own work, and they have only their own standards to meet. However, women's family work is often worrisome, tiresome, menial, repetitive, isolating, unfinished, inescapable, and often unappreciated. It is not surprising that more men than women report that they are satisfied with their marriage. In sum, the role of the mother brings with it benefits as well as limitations. Although motherhood is not enough to fill most women's entire lives, for most mothers, it is one of the most meaningful experiences in their lives. Father-mother cooperation and mutual respect helps the child to develop positive attitudes toward both males and females. It is much easier for working parents to cope with changing family circumstances and day-care issues then the father and mother equitably share child-rearing responsibilities. Mothers feel less stress and have more positive attitudes toward their husbands when they are supportive partners.

单选题The Planning Commission asserts that the needed reduction in acute care hospital beds can best be accomplished by closing the smaller hospitals, mainly voluntary and proprietary. This strategy follows from the argument that closing entire institutions saves more money than closing the equivalent number of beds scattered throughout the health system. The issue is not that simple. Larger hospitals generally are designed to provide more complex care. Routine care at large hospitals costs more than the same care given at smaller hospitals. Therefore, closure of all the small hospitals would commit the city to paying considerably more for in-patient care delivered at acute care hospitals than would be the case with a mixture of large and small institutions. Since reimbursement rates at the large hospitals are now based on total costs, paying the large institutions a lower rate for routine care would simply raise the rates for complex care by a comparable amount. Such a reimbursement rate adjustment might make the charges for each individual case more accurately reflect the actual costs, but there would be no reduction in total costs. There is some evidence that giant hospitals are not the most efficient. Service organizations and medical care remains largely a service industry — frequently find that savings of scale have an upper limit. Similarly, the quality of routine care in the very largest hospitals appears to be less than optimum. Also, the concentration of all hospital beds in a few locations may affect the access to care. Thus, simply closing the smaller hospitals will not necessarily save money or improve the quality of care. Since the fact remains that there are too many acute care hospital beds in the city, the problem is to devise a proper strategy for selecting and urging the closure of the excess beds. However many it may turn out to be. The closing of whole buildings within large medical centers has many of the cost advantages of closing the whole of smaller institutions, because the fixed costs can also be reduced in such cases. Unfortunately, many of the separate buildings at medical centers are special-use facilities. The relocation of which is extremely costly. Still a search should be made for such opportunities. The current lack of adequate ambulatory care facilities raises another possibility. Some floors or other large compact areas of hospital could be transferred from in-patient to ambulatory uses. Reimbursement of ambulatory services is chaotic, but the problem is being addressed. The overhead associated with the entire hospital should not be charged even pro rate to the ambulatory facilities. Even if it were, the total cost would probably be less than that of building a new facility. Many other issues would also need study, especially the potential overcentralization of ambulatory services. The Planning Commission language seems to imply that one reason for closing smaller hospitals is that they are "mainly voluntary and proprietary". Thus, preserving the public hospital system by making the rest of the hospital system absorb the needed cuts. It is important and not hidden behind arguments about hospital size. If indeed that was the meaning.

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单选题Look at the ten statements for this part. You will hear a passage about "Credit Cards History ". You will listen to it twice. Decide whether you think each statement is right(R), wrong(W)or not mentioned(NM). Mark your answers on the Answer Sheet.

单选题Self-consciousness and loneliness are signs of computer addiction.

单选题Read the following article and answer questions 19-25. For questions 19-25, choose the correct answer A, B, C or D. Mark your answer on your Answer Sheet To Tweet or Not to Tweet The economy may be troubled, but one area is thriving: social media. They begin with Facebook and extend through a dizzying array of companies that barely existed five years ago: Twitter, LinkedIn, Groupon, Yammer, Yelp, Flickr, Ning, Digg — and the list goes on. These companies are mostly private but have attracted the ardent attention of Wall Street and investors, with Facebook now worth a purported $75 billion and Groupon valued at close to $25 billion. There can be little doubt than these companies enrich their founders as well as some investors. But do they add anything to overall economic activity? While jobs in social media are growing fast, there were only about 21,000 listings last spring, a tiny fraction of the 150 million-member U.S. workforce. So do social-media tools enhance productivity or help us bridge the wealth divide? Or are they simply social-entertaining and diverting us but a wash when it comes to national economic health? The answers are vital, because billions of dollars in investment capital are being spent on these ventures, and if we are to have a productive future economy, that capital needs to grow the economic pie — and not just among the elite of Silicon Valley and Wall Street. The U.S. retains a competitive advantage because of its ability to innovate, but if that innovation creates services that don't turn into jobs, growth and prosperity, then it does us only marginal good. The problem is that these tools are so new that it is extremely difficult to answer the questions definitively. Flash back nearly 20 years and the same questions were being asked about the first Internet wave. Were Netscape and the Web enhancing our economy, or were people just spending more time at work checking out ESPN.com? Official statistics weren't designed to capture the benefits, and didn't — until statistics mavens at the Federal Reserve, urged on by Alan Greenspan, refined the way they measured productivity. As a result of these somewhat controversial innovations, the late 1990s became a period of substantial technology-driven gains. It is possible that the same gap exists today, that social-media tools are indeed laying the groundwork for new industries and jobs but aren't yet registering on the statistical radar. Many companies believe social media make them more competitive. Ford and Zappos, for instance, use Twitter to market their products and address consumer complaints. Countless corporations have created internal Facebook pages and Yammer accounts for employees to communicate across divisions and regions. Industry groups for engineers, doctors and human-resources professionals have done the same to share new ideas and solutions on a constant basis rather than episodically at conferences. Staffing companies have been especially keen on social media; a senior executive at Manpower told me we should think of social-media tools as today's version of the telephone. One big question is what proportion of that benefit will be captured economically by consumers vs. corporations. Sure, social media allow people to compare prices and quality and assess which companies are good to work for and where jobs might be. They also may enhance education and idea sharing, but the caveat is that the people who use these tools are the ones with higher education and income to spend on technology, not the tens of millions whose position in today's world has eroded so sharply. According to a recent Pew Foundation study, only 45% of adults making less than $30,000 have access to broadband, which is an essential component of using content-rich social media effectively. And that is the rub. Like so many things these days, social media contribute to economic bifurcation. Dynamic companies are benefiting from these tools, even if the gains are tough to nail down in specific figures. Many individuals are benefiting too, using Linkedln to find jobs and Groupon to find deals. Bui for now, the irony is that social media widen the social divide, making it even harder for the have-nots to navigate. They allow those with jobs to do them more effectively and companies that are profiting to profit more. But so far. they have done little to_aid those who are being left behind. They are, in short, business as usual.

单选题What might driving on an automated highway be like? The answer depends on what kind of system is ultimately adopted. Two distinct types are on the drawing board. The first is a special purpose lane system, in which certain lanes are reserved for automated vehicles. The second is a mixed traffic system: fully automated vehicles would share the road with partially automated or manual driven cars. A special purpose lane system would require more extensive physical modifications to existing highways, but it promises the greatest gains in freeway capacity. Under either scheme, the driver would specify the desired destination, furnishing this information to a computer in the car at the beginning of the trip or perhaps just before reaching the automated highway. If a mixed traffic system was in place, automated driving could begin whenever the driver was on suitably equipped roads. If special purpose lanes were available, the car could enter them and join existing traffic in two different ways. One method would use a special on-ramp. As the driver approached the point of entry for the highway, devices installed on the roadside would electronically check the vehicle to determine its destination and to ascertain that it had the proper automation equipment in good working order. Assuming it passed such tests, the driver would then be guided through a gate and toward an automated lane. In this case, the transition from manual to automated control would take place on the entrance ramp. An alternative technique could employ conventional lanes, which would be shared by automated and regular vehicles. The driver would steer onto the highway and move in normal fashion to a "transition" lane. The vehicle would then shift under computer control onto a lane reserved for automated traffic.(The limitation of these lanes to automated traffic would, presumably, be well respected, because all trespassers could be swiftly identified by authorities.) Either approach to joining a lane of automated traffic would harmonize the movement of newly entering vehicles with those already traveling. Automatic control here should allow for smooth merging without the usual uncertainties and potential for accidents. And once a vehicle had settled into automated travel, the driver would be free to release the wheel, open the morning paper or just relax.

单选题alive

单选题Asimoispoweredbysolarenergy.

单选题There are many different reasons why fashion is such a powerful cultural and economic influence in developed societies at the beginning of the 21st millennium and why it has been so powerful during the twentieth century. The economic interest of manufacturers and advertisers has certainly been important but it is highly unlikely that these would have been successful unless their message met a receptive audience within the mind of the culture. Just as men compete with one another so do women, women want to stand out and be noticed. To wear something beautiful, if not outrageous, does just this. It gives a woman a competitive advantage with regard to other women. The most brightly colored and scented flowers in the otherwise verdant green of a tropical jungle tend to attract the most visits from potential insect pollinators. How many women, when they ask another woman what she is wearing to a function, do so because they want to make sure they are wearing the same thing? To be fashionable is also an indication of status because, initially in any case, designer wear is expensive and beyond the reach of most. It indicates status, power, and access to resources. Fashion, initially outrageous, is then copied by other women so that by definition it becomes less outrageous and more the norm. The boundary keeps moving further back so that the outrageous has to become even more extreme. However, equally important is to wear something "new". Women do not like to always look the same. This, for many of them, is a psychological preference which probably evolved in response to the Coolidge effect in men. To wear something different, to have a different make-up, a different style is to bring an element of "newness" into the equation and to appeal to men's(or her man's)innate desire for novelty. Of course, the risk in the new look or the new hairstyle is that it will not be found to be attractive, hence the significant anxiety which women often find themselves experiencing when they make such a change.

单选题Questions 14-23 ·Look at the ten statements for this part. · You will hear a passage about "Inflation" You will listen to it twice. ·Decide whetheryou think each statement is right(R), wrong(W) or not mentioned(NM). ·Markyour answers on the Answer Sheet.

单选题Read the following text and decide which answer best fits each space. For questions 26-45, mark one letter A, B, C or D on your Answer Sheet. Museum Science When deadly virus outbreaks occur, scientists want to know where the disease is coming from and how to stop it. In their search for【C1】______, some will pay a visit to their local museum. They are not trying to take their minds off the outbreak.【C2】______. they come to sift through the museum's historic collections, looking for【C3】______that might help them save lives. For instance, in the 1990s, there was an【C4】______of hantavirus in New Mexico and nearby states. The sometimes-deadly disease【C5】______flulike symptoms and difficulty breathing. At the time, no one knew the【C6】______of the outbreak. Some people even suspected terrorists might have【C7】______the germs as a biological weapon. But Robert Baker and his coworkers wondered if a rodent might be to【C8】______This biologist is a director at the Natural Science Research Laboratory at the Museum of Texas Tech University in Lubbock. Baker knew mice and rats can【C9】______viruses to humans. So he turned to the lab's stores of dried and frozen tissues for help. Those【C10】______included some collected decades earlier from New Mexico rodents. His team analyzed deer-mouse lung samples that had been【C11】______in a freezer since the 1980s. Some indeed【C12】______hantavirus. This showed the germ existed in New Mexico long【C13】______the state's human outbreak developed. The finding suggested biological weaponry was not outbreak's source. Most【C14】______. it pointed to how people could limit infection with the【C15】______virus: Keep deer-mice out of their garages and homes. Robert Bradley now works【C16】______the museum's curator of mammals. He says the episode taught him an important【C17】______Collections like the one he manages let scientists travel back in【C18】______to answer important questions. "One hundred years from now,【C19】______knows the questions that will be asked?" But, he notes, if samples from the past are【C20】______, they can help future scientists answer their questions.