单选题So absorbed in the book ______ that he didnt notice me. A．he was B．he is C．was he D．is he

单选题The Mona Lisa is the portrait of a woman with a very enticing smile.

单选题The Hero in Romance is usually the

单选题Directions: Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D on the ANSWER SHEET. For many parents, summer is oppressive not mostly because of the heat but because of scheduling. The lengthening days are a hint of the specter of more than 50 million school-age {{U}} {{U}} 1 {{/U}} {{/U}}with six more hours of {{U}} {{U}} 2 {{/U}} {{/U}}time than usual. It's a child-care chasm that I usually end up crossing by building an emergency bridge made of cash: for more baby-sitting, more late {{U}} {{U}} 3 {{/U}} {{/U}}, more hastily put-together sort of activities. {{U}} {{U}} 4 {{/U}} {{/U}}no matter how unprepared I am, I'll never be arrested for my choices. That's what {{U}} {{U}} 5 {{/U}} {{/U}}to Deborah Harrell, who was taken into custody earlier this month, officially for unlawful conduct toward a child, also known as {{U}} {{U}} 6 {{/U}} {{/U}}her 9-year-old daughter in a park in North Augusta, S.C., for several hours {{U}} {{U}} 7 {{/U}} {{/U}}she was at work. Her kid had a cell phone, and the McDonald's Harrell works at was {{U}} {{U}} 8 {{/U}} {{/U}}, but the girl was there without adult {{U}} {{U}} 9 {{/U}} {{/U}}for much of the day, a {{U}} {{U}} 10 {{/U}} {{/U}}said. The mom's {{U}} {{U}} 11 {{/U}} {{/U}}led to a round of national hair pulling about "How a person could even do that" {{U}} {{U}} 12 {{/U}} {{/U}}"How a person could even report that". {{U}} {{U}} 13 {{/U}} {{/U}}, about 40% of parents leave their kids on their own, at least for a while, {{U}} {{U}} 14 {{/U}} {{/U}}the American Academy of Child and Adolescent Psychiatry. Three states have even {{U}} {{U}} 15 {{/U}} {{/U}}a minimum age for being home alone, {{U}} {{U}} 16 {{/U}} {{/U}}from 8 years old in Maryland to 14 in Illinois. Kids have raced around outside by themselves since the dawn of time. That's why those on the free-range end of the child-raising spectrum blamed the busybody who {{U}} {{U}} 17 {{/U}} {{/U}}Harrell. {{U}} {{U}} 18 {{/U}} {{/U}}she was doing exactly what child-protective-service agencies have asked U.S. citizens to do, especially since data {{U}} {{U}} 19 {{/U}} {{/U}}that child-abuse reports {{U}} {{U}} 20 {{/U}} {{/U}}to go down over summer but child-abuse incidents do not.

单选题There is scientific evidence to support our ______ that being surrounded by plants is good for health.

单选题从供选择的答案中，选出最确切的解答。 (1) data effectively is crucial for success in todays competitive environment. Managers must know how to use a variety of tools. Integrated data takes information from different sources and puts it together in a meaningful and useful way. One of the difficulties of this is the (2) in hardware and software. (3) integration uses a base document that contains copies of other objects. (4) integration uses a base document that contains the current or most recent version of the source document it contains. (5) provides an overview of the program written in plain English, without the computer syntax.

单选题______ she couldnt understand was ______ fewer and fewer students showed interest in her lessons A．What; why B．That; what C．What; because D．Why; that

单选题The manager didn't have time to read the report word for word: he just ______ it.

单选题Since the situation is changing, let's take some ______ measures to deal with it. A. available B. changeable C. flexible D. considerable

单选题In the summer of 999, Leif Erikson voyaged to Norway and spent the following winter with King Olaf Tryggvason. Substantially the same account is given by both the Saga of Eric the Red and the Flat Island Book. The latter says nothing about Leif's return voyage to Greenland, but according to the former it was during this return voyage that Leif discovered America. The Flat Island Book, however, tells of another and earlier landfall by Biarni, the son of a prominent man named Heriulf, and makes that the inspiration for the voyage to the new land by Leif. In brief, like Leif, Biarni and his companion sight three countries in succession before reaching Greenland, and to come upon each new land takes 1 "doegr" more than the last until Biarni comes to land directly in front of his father's house in the last- mentioned country. This narrative has been rejected by most later writers, and they may be justified. Possibly, Biarni was a companion of Leif when he voyaged from Norway to Greenland via America, or it may he that the entire tale is But a garbled account of that voyage and Biarni another name for Leif. It should be noted, however, that the stories of Leif's visit to King Olaf and Biarni's to that king's predecessor are in the same narrative in the Flat Island Book, so there is less likelihood of duplication than if they were from different sources. Also, Biarni landed on none of the lands he passed, but Leif apparently landed on one, for he brought back specimens of wheat, vines, and timber. Nor is there any good reason to believe that the first land visited by Biarni was Wineland. The first land was "level and covered with woods", and "there were small hillocks upon it'. Of forests, later writers do not emphasize them particularly in connection with Wineland, though they are often noted incidentally. And of hills, the Saga says of Wineland only that "wherever there was hilly ground, there were vines". Additionally, if the two narratives were taken from the same source we should expect a closer resemblance of Helluland. The Saga says of it: "They found there hellus (large flat stones)." According to the Biarni narrative, however, "this land was high and mountainous." The intervals of 1, 2, 3, and 4 "doegr" in both narratives are suggestive, but mythic formulas of this kind may be introduced into narratives without altogether destroying their historicity. It is also held against the Biarni narrative that its hero is made to come upon the coast of Greenland exactly in front of his father's home. But it should be recalled that Heriufsness lay below two high mountains which served as landmarks for navigators. I would give up Biarni more readily were it not that the story of Leif's voyage contained in the supposedly more reliable Saga is almost as amazing. But Leif's voyage across the entire width of the North Atlantic is said to be "probable" because it is incorporated into the narrative of a preferred authority, while Biarni's is "improbable" or even "impossible" because the document containing it has been condemned.

单选题{{B}}Text 1{{/B}} Menorca or Majorca? It is that time of the year again. The brochures are piling up in travel agents while newspapers and magazines bulge with advice about where to go. But the traditional packaged holiday, a British innovation that provided many timid natives with their first experience of warm sand, is not what it was. Indeed, the industry is anxiously awaiting a High Court ruling to find out exactly what it now is. Two things have changed the way Britons research and book their holidays: low-cost airlines and the internet. Instead of buying a ready made package consisting of a flight, hotel, car hire and assorted entertainment from a tour operator's brochure, it is now easy to put together a trip using an online travel agent like Expedia or Travelocity, which last July bought Lastminute. com for ￡577m (＄1 billion), or from the proliferating websites of airlines, hotels and car-rental firms. This has led some to sound the death knell for high street travel agents and tour operators. There have been upheavals and closures, but the traditional firms are starting to fight back, in part by moving more of their business online. First Choice Holidays, for instance, saw its pre tax profit rise by 16% to ￡114m ( ＄196m) in the year to the end of October. Although the overall number of holidays booked has fallen, the company is concentrating on more valuable long-haul and adventure trips. First Choice now sells more than half its trips directly, either via the internet, over the telephone or from its own travel shops. It wants that to reach 75% within a few years. Other tour operators are showing similar hustle. MyTravel managed to cut its loss by almost half in 2005. Thomas Cook and Thomson Holidays, now both German owned, are also bullish about the coming holiday season. Highstreet travel agents are having a tougher time, though, not least because many leading tour operations have cut the commissions they pay. Some high-street travel agents are also learning to live with the internet, helping people book complicated trips that they have researched online, providing advice and tacking on other services: This is seen as a growth area. But if an agent puts together separate flights and hotel accommodation, is that a package, too? The Civil Aviation Authority (CAA) says it is and the agent should hold an Air Travel Organisers- Licence, which provides financial guarantees to repatriate people and provide refunds. The scheme dates from the early 1970s, when some large British travel firms went bust, stranding customers on the Costas. Although such failures are less common these days, the CAA had to help out some 30,000 people last year. The Association of British Travel Agents went to the High Court in November to argue such bookings are not traditional packages and so do not require agents to acquire the costly licences. While the court decides, millions of Britons will happily click away buying online holidays, unaware of the difference.

单选题{{B}}Passage 2{{/B}} Women are, on the whole, more verbal than men. They are good at language and verbal reasoning, while men tend to be skilled at tasks demanding visual—spatial(视空)abilities. In fact, along with aggression, these are the most commonly accepted difference between these sexes. Words are tools for communicating with other people, especially information about people. They are mainly social tools. Visual and spatial abilities are good for imagining and manipulating objects and for communicating information about them. Are these talents programmed into the brain? In some of the newest and most controversial research in neurophysiology(神经生理学), it has been suggested that when it comes to the brain, males are specialists while women are generalists. But one knows that, if anything, this means in terms of the abilities of the two sexes. Engineering is both Visual and spatial, and it's true that there are relatively few women engineers. But women become just as skilled as men at shooting a rifle or driving a car, task that involve visual-spatial skills. They also do equally well at programming a computer, which is neither visual nor spatial. Women do, however, seem less likely to fall in love with the objects themselves. We all know men for whom machines seem to be extensions of their identity. {{U}}A woman is more likely to see her car, rifle, or computer as a useful tool but not in itself fascinating.{{/U}}

单选题The energy contained in rock within the earth"s crust represents a nearly unlimited energy source, but until recently commercial retrieval has been limited to underground hot water and/or steam recovery systems. These systems have been developed in areas of recent volcanic activity, where high rates of heat flow cause visible eruption of water in the form of geysers and hot springs. In other areas, however, hot rock also exists near the surface but there is insufficient water present to produce eruptive phenomena. Thus a potential hot dry rock (HDR) reservoir exists whenever the amount of spontaneously produced geothermal fluid has been judged inadequate for existing commercial systems. As a result of recent energy crisis, new concepts for creating HDR recovery systems—which involve drilling holes and connecting them to artificial reservoirs placed deep within the crest—are being developed. In all attempts to retrieve energy from HDRs, artificial stimulation will be required to create either sufficient permeability or bounded flow paths to facilitate the removal of heat by circulation of a fluid over the surface of the rock. The HDR resource base is generally defined to include crustal rock that is hotter than 150℃, is at depths less than ten kilometers, and can be drilled with presently available equipment. Although wells deeper than ten kilometers are technically feasible, prevailing economic factors will obviously determine the commercial feasibility of wells at such depths. Rock temperatures as low as 100℃ may be useful for space heating; however, for producing electricity, temperatures greater than 200℃ are desirable. The geothermal gradient, which specifically determines the depth of drilling required to reach a desired temperature, is a major factor in the recoverability of geothermal resources. Temperature gradient maps generated from oil and gas well temperature-depth records kept by the American Association of Petroleum Geologists suggest that tappable high-temperature gradients are distributed all across the United States. (There are many areas, however, for which no temperature gradient records exist.) Indications are that the HDR resource base is very large. If an average geothermal temperature gradient of 22℃ per kilometer of depth is used, a staggering 13,000,000 quadrillion B.T.U. "s of total energy are calculated to be contained in crustal rock to a ten-kilometer depth in the United States. If we conservatively estimate that only about 0.2 percent is recoverable, we find a total of all the coal remaining in the United States. The remaining problem is to balance the economics of deeper, hotter, more costly wells and shallower, cooler, less expensive wells against the value of the final product, electricity and/or heat.

单选题Though pundits were quick to declare that the election of Barack Obama represented the emergence of a "post- racial" America, the macroeconomy has provided a corrective. During the American economy"s last deep recession, in the early 1980s, black unemployment soared to twice the level among whites, passing 21% in 1983. And according to the latest data from the Bureau of Labour Statistics, time has changed little. The current unemployment rate among black Americans is almost 16%; among whites the figure is under 10%. The yawning gap between blacks and whites persists across demographic lines. The current "mancession" has hit male-dominated professions hardest. But white men face a relatively mild unemployment rate of just over 10% compared with over 18% among black men. For the worst-off, the data are catastrophic. Among young black men without a high-school diploma, nearly half have no jobs. These rates are based on a labour-force number which excludes those in prison; if there were not five times as many blacks behind bars as whites, the figures would look even worse. There is no shortage of explanations for the gap. States with weaker labour markets, like South Carolina and Michigan, also tend to have larger black populations than low-unemployment states like Iowa and Montana. Predominantly black neighbourhoods are often a long way from where jobs are concentrated, in largely white suburbs, so those without cars cannot get to them. Blacks are also at a disadvantage when it comes to relying on friends and family connections to find jobs; there is not the same network of family businesses that whites and Latinos have. Some studies have found that this factor may explain as much as 70% of the difference in black and white unemployment rates, and may also explain the difference between black and Latino jobless rates. Among young men, for instance, the near-20% Hispanic unemployment rate is much closer to that for whites (17%) than blacks (30%). And discrimination, too, plays a part. What is clear is that the unemployment problem in black communities will not end with the recession. The employment-to-population ratio among black adults is only just above 50%, and it is closer to a shocking 40% for young black men; for adult whites it is 59%. Black workers are also unemployed for about five weeks longer, on average, than the rest of the population. Some 45% of unemployed blacks have been out of work for 27 weeks or longer, compared with just 36% of unemployed whites. That means continued loss of skills, and a longer and harder road back into the workforce.

单选题And you find that you're not to be ______ with a position of real responsibility. A. offered B. trusted C. furnished D. equipped