单选题Another factor in the display of art objects (concerns their continued preservation). Because of the sensitivity of some of the materials (used in their creation), it is necessary to control (within narrow limits) the temperature, humidity, and lighting (which) they are exposed.

单选题Although there arc many predictions about the future, no one knows for sure ______the world would be like in 50 years.

单选题Speaker A: Are you feeling better now?Speaker B: ______.

单选题American linguist Noah Webster was among the first to __________ the growing difference between American and British usages of English.

单选题All the students in this class passed the English exam ______ the exception of Li Ming.

单选题I wonder if you realize just how many others share your problem. It is so common for people to distort the truth about themselves. Sometimes it"s just an invented excuse when you"re late for something or a pretence that you like someone you don"t. These white lies don"t usually harm anyone and indeed often help smooth over difficult social situations. They certainly are embarrassing if exposed but, on the whole, they"re easily forgiven. What you describe is a habit of lying that is more serious than this. I suspect that the lies you tell are ways of defending an idea you have of your own worth. People who have doubts about their own self-esteem often worry that others will judge them as harshly as they feel they deserve because of a secret idea that they are pretty worthless. In other words, they create a false picture of themselves, a picture of someone who meets all the expectations they think others have of them, and as you say, that causes problems—since they have to keep living up to that image. At the same time, they have to tell further lie to cover the stories they have already told. According to some authorities, this is particularly among women especially those who have few opportunities to develop an adequate sense of self-worth. I suggest you give yourself one day during which you stick solidly to the truth about yourself. Give yourself a small treat at the end of the day if you have managed to keep it up. Wait a week and then try it again. Once you have achieved three separate lie-free days, see if you can cope with three days running, then extend it to a whole week. Don"t make a promise to yourself that you will never lie again because almost certainly you will—it"s too much to take on at once. Try to change things little by little, by setting yourself manageable targets. After a while, you"ll wonder why you ever had the problem at all.

单选题Living in poverty, John sold for 500 dollars the ______ of his mother's first work which made her famous. A. document B. file C. duplicate D. manuscript

单选题Although ______ happened in that developed country sounds like science fiction, it could occur elsewhere in the world.A. whichB. whatC. howD. it

单选题People who use their desk-top computers for writing can become almost hypnotized by the unbroken succession of letters and text; in such cases, a computer video game can supply a welcome ______.

单选题Internet (has made possible) (for people to know) what (is going) on (all over) the world.

单选题According to a paper to be published in Psychological Science this has an interesting psychological effect. A group of researchers, led by Eugene Caruso of the University of Chicago, found that people judge the distance of events 24 , depending on whether they are in the past or future. The paper calls this the 'Temporal Doppler Effect'. In physics, the Doppler effect describes the way that waves change frequency depending on whether their 25 is traveling towards or away from you. Mr. Caruso argues that something similar happens with people's perception of time. Because future events are associated with diminishing distance, while those in the past are thought of as 26 , something happening in one month feels psychologically 27 than something that happened a month ago. This idea was tested in a series of experiments. In one, researchers asked 323 28 and divided them into two groups. A week before Valentine's day, members of the first were asked how they planned to celebrate it. A week after February 14th the second group reported how they had celebrated it. Both groups also had to describe how near the day felt on a 29 of one to seven. Those describing forthcoming plans were more likely to report it as feeling 'a short time from now', while those who had already 30 it tended to cluster at the 'a long time from now' end of the scale. To account for the risk that recalling actual events requires different cognitive functions than imagining ones that have not yet happened, they also asked participants to 31 the distance of hypothetical events a month in the past or future. The asymmetry (不对称) remained. Mr. Caruso speculates that his research has 32 for psychological well-being. He suspects that people who do not show this bias—those who feel the past as being closer—might be more 33 to rumination (沉思) or depression, because they are more likely to dwell on past events. A. advancing B. apparently C. available D. closer E. differently F. evaluate G. experienced H. implications I. prospect J. rate K. receding L. scale M. source N. subject O. volunteers

单选题During the rainy season the Mississippi River may carry away hundreds of acres of valuable topsoil from one area and Uarbitrarily/U deposit it in another.

单选题The Huntington Library has an ______ collection of rare books and manuscripts of British and American history and literature.

单选题Most computer users are_________threat from computer viruses.

单选题I often thought of my childhood, ______ I lived on a farm.

单选题Which is NOT one of the reasons why city life is not preferable?

单选题All the useful energy at the surface of the earth comes from the activity of the sun. The sun heats and feeds creatures and mankind. Each year it provides men with two hundred million tons of grain and nearly ten million tons of wood, coal, oil, natural gas, and all other fuels are stored energy from the sun. (80) Some was collected by this season' s plants as carbon compounds. Some was stored by plants and trees ages ago. Even waterpower derives from the sun. Water turned into vapor by the sun fails as rain. It courses down the mountains and is converted to electric power. Light transmits only the energy that comes from the sun' s outer layer, and much of this energy that is directed towards the earth never arrives. About nine tenths of it is absorbed by the atmosphere of the earth. In fact, the earth itself gets only one half millionth of the sun's entire output of radiant energy.

单选题This road is ______ to flood in summer, so it is necessary for us to build a reservoir during the drought.

单选题States are considering major changes in prepaid college tuition programs——raising prices, restricting participation or canceling them——as they grapple with financial woes. Nationwide, families will likely have to pay more to participate, or accept that they might not cover tuition when children go to college. Colorado has closed its prepaid plan to new investors and told existing ones that it may not cover future tuition increases. Wisconsin stopped selling its plan Dec. 20. Maryland and Illinois are among states hiking prices by 20% or more. Prepaid plans let parents lock in tuition by paying for it now, protecting them against rising costs. But the bear market has hurt investment returns, leaving the plans unable to keep up with big increases in tuition. So far, Colorado is the only state that has told participants their investments may not cover tuition, and no plan has missed a payment. Other states have said they will fulfill obligations, even if it requires a legislative bailout. Still, the financial problems have forced thousands to grapple with uncertainty——something prepaid plans were designed to avoid. More than 1 million families have an estimated $8 billion invested in the plans, says ＜SavingforCollege.com＞. Some states, including Colorado, may replace the prepaid plan with a guaranteed investment con tract, a CD-like investment that's backed by an insurance company. Investors get a minimum rate of re mm, but no guarantee that it will cover tuition. Wisconsin's EdVest program is encouraging investment in a stable value fund, which is similar to a guaranteed investment contract, in its investment plan. Wisconsin's prepaid plan never guaranteed to cover tuition inflation. It also never get a lot of investors, possibly because it lacked that guarantee. In Florida, a task force is considering limiting the state's prepaid program to low-income families. Ohio officials are also looking at limiting participation, but it's a measure they hope to avoid. "Program administrators are looking for alternatives, "says Andrea Feirstein, a state-plan consultant. Maryland recently boosted its prices by up to 30%; Illinois by up to 23%. The increases have made some prepaid plans uneconomical for parents of older children. In Ohio, the price of one year's tuition for a child over 12 months old is $8,000, more than 40% above current tuition at Ohio State. So it may not be a good deal for children starting college in three or four years because tuition may not jump that much that fast.