单选题Constance Hale says "email has been an incredible boon to communication". What does she mean by this?

单选题A. committee B. employee C. guarantee D. disagree

单选题John's mindless ______ concealed a warm and kindhearted nature. A. appearance B. personality C. outlook D. temper

单选题In what condition does one need to stop after an accident?

单选题All of the students ______ interest in the case share in working out the problem.

单选题The foolish gift doesn't know ______ but eating.

单选题 Manufacturers of everything from running shoes to deodorants, a substance to remove unpleasant odors, design products specifically for women. One of the latest entries: the first artificial joint created for-and heavily advertised to-females. Doctors say it's too soon to tell whether the Gender Knee represents a giant leap for womankind or if it gives its maker, Zimmer Holdings Inc., a leg up in the market. In the case of the knees, according to Zimmer, here's how men and women are different: First, the kneecap, is thinner in women. Also, women's wider hips create a different angle between the knee and pelvis-the wide, curved group of bones at the level of hips, which can mean the kneecap gets pulled to the side when the muscles contract. And the end of the thighbone is typically narrower in men. Most artificial knees were modeled on the male anatomy-which may explain why knee replacements in women aren't as successful when measured by reported pain and do-over rates. But will the new (and more expensive) replacement actually serve women better? "In theory, yes, but the evidence isn't there," says Kimberly Templeton, an associate professor of orthopedic surgery (prevention or correction of disorders of the bones and associated muscles and joints) at the University of Kansas Medical Center and a spokesperson for the American Academy of Orthopedic Surgeons. Sheryl Conley, Zimmer's chief marketing officer, says seven studies now underway will look at patient satisfaction and range of motion. Preliminary data will be available in a year or so. Anatomical differences aside, Templeton says, replacement knees may not perform well in women in part because females tend to delay surgery-sometimes until they're bound to the house by disability. In addition, it's not clear that the manufacturer's specialized design will translate to less pain, says Steven Haas, an orthopedic surgeon and chief of the knee service at the Hospital for Special Surgery in New York. For example, making the front of the replacement knee thinner by one twenty-fifth of an inch won't necessarily make a noticeable difference to recipients. Having a correctly fitted device is clearly important, says Haas, who notes that other companies have modified their smaller knees to account for gender differences in anatomy. (Haas has consulted with Smith & Nephew, a rival to Zimmer.) More important, says Haas, is to find a skillful surgeon. Differences between implants, he argues, are relatively minor compared to the technique of the surgeon putting them in.

单选题The flood in 1941 was so severe that many people in these villages were made______.

单选题A New Zealand man was recently______to life imprisonment for the murder of an English tourist, Monica Cantwell.

单选题Foxes and farmers have never got on well. These small dog-like animals have long been accused of killing farm animals. They are officially classified as harmful and farmers try to keep their numbers down by shooting or poisoning them. Farmers can also call on the services of their local hunt to control the fox population. Hunting consists of pursuing a fox across the countryside, with a group of specially trained dogs, followed by men and women riding horses. When the dogs eventually catch the fox they kill it or a hunter shoots it. People who take part in hunting think of it as a sport; they wear a special uniform of red coats and white trousers, and follow strict codes of behavior. But owning a horse and hunting regularly is expensive, so most hunters are wealthy. It is estimated that up to 100,000 people watch or take part in fox hunting. But over the last couple of decades the number of people opposed to fox hunting, because they think it is brutal (残酷的)， has risen sharply. Nowadays it is rare for a hunt to pass off without some kind of confrontation (冲突) between hunters and hunt saboteurs (阻拦者). Sometimes these incidents lead to violence, but mostly saboteurs interfere with the hunt by misleading riders and disturbing the trail of the fox"s smell, which the dogs follow. Noisy confrontations between hunters and saboteurs have become so common that they are almost as much a part of hunting as the pursuit of foxes itself. But this year supporters of fox hunting face a much bigger threat to their sport. A Labour Party Member of the Parliament, Mike Foster, is trying to get Parliament to approve a new law which will make the hunting of wild animals with dogs illegal. If the law is passed, wild animals like foxes will be protected under the ban in Britain. (324 words)

单选题______ a lot of exercises for us to do. A．It seems B．There seems C．It has D．There seem to be

单选题You can’t imagine __________ foolishly he behaved at the party.

单选题{{B}}Text 3{{/B}} Something big is happening to the human race--something that could be called The Great Transformation. The Transformation consists of all the changes that are occurring m human life due to advancing technology. For thousands of years such progress occurred slowly. Now, everything is changing so fast that you may find yourself wondering where all this progress is really leading. Nobody knows what all these changes really will mean in the long run. But this mysterious Transformation is the biggest story of all time. It is the story of the human race itself. Some people worry about what will happen when the deposits of petroleum are gone, but already researchers are finding all kinds of new ways to obtain energy. Someday, solar power collected by satellites circling the earth of fission power manufactured by mankind may give us all the energy we need for an expanding civilization. Space exploration promises to open up many new territories for human settlement, as well as leading to the harvest of mineral resources like the asteroids. Scientific research continues to open up previously undreamed-of possibilities. Fifty years ago, few people could even imagine things like computers, lasers, and holography. Today, a host of newly emerging technologies such as artificial intelligence and genetic engineering are opening up all kinds of new paths for technologists. Like it or not, our advancing technology has made us masters of the earth. We not only dominate all the other animals, but we are reshaping the world' s plant life and even its soil and rocks, its waters and surrounding air. Mountains are being dug up to provide minerals and stone for buildings. The very ground under our feet is washing away as we chop down the forests, plow up the fields, and excavate foundations for our buildings. Human junk is cluttering up not only the land but even the bottom of the sea. And so many chemicals are being released into the air by human activities that scientists worry that the entire globe may warm, causing the polar icecaps to melt and ocean waters to flood vast areas of the land. During the twentieth century, advancing technology has enabled man to reach thousands of feet into the ocean depths and to climb the highest mountains. Mount Everest, the highest mountain of all, resisted all climbers until the 1950's: Now man is reaching beyond Earth to the moon, Mars, and the stars. No one knows what the Great Transformation means or where it will ultimately lead. But one thing is sure: Human life 50 years from now will be very different from what it is today. It's also worth noting that our wondrous technology is posing an increasingly insistent question: When we can do so many things, how can we possibly decide what we really should do? When humans were relatively powerless, they didn't have to make the choices they have to make today. Technology gives us the power to build a magnificent new civilization—if we can just agree on what we want it to be. But today, there is little global agreement on goals and how we should achieve them. So it remains to be seen what will happen as a result of our technology. Pessimists worry that we will use the technology eventually to blow ourselves up. But they have been saying that for decades, and so far we have escaped. Whether we will continue to do so remains unknown--but we can continue to hope.

单选题Directions: there are twenty blanks in the following passage. For each blank there are four choices marked A, B, C and D, You should choose the ONE that best fits into the passage. Then mark the corresponding letter on the Answer Sheet. There are three separate sources of hazard {{U}} {{U}} 1 {{/U}} {{/U}}to the use of nuclear reaction to supply us with energy Firstly, the radioactive material must travel from its place of manufacture to the power station {{U}} {{U}} 2 {{/U}} {{/U}}the power stations themselves are solidly built, the container used for transport of the material are not. Unfortunately, there are {{U}} {{U}} 3 {{/U}} {{/U}}only two methods of transport available, {{U}} {{U}} 4 {{/U}} {{/U}}road or rail, and both of these {{U}} {{U}} 5 {{/U}} {{/U}}close contact with the general public, {{U}} {{U}} 6 {{/U}} {{/U}}the routes are {{U}} {{U}} 7 {{/U}} {{/U}}to pass near, or even through, {{U}} {{U}} 8 {{/U}} {{/U}}populated areas. Secondly, there is a problem of wastes. All nuclear power stations produce wastes which {{U}} {{U}} 9 {{/U}} {{/U}}will remain radioactive for thousands of years. It is {{U}} {{U}} 10 {{/U}} {{/U}}to deactive these wastes, and so they must be stored {{U}} {{U}} 11 {{/U}} {{/U}}one of the ingenious but cumbersome ways that scientists have invented, For example, they must be buried under the ground {{U}} {{U}} 12 {{/U}} {{/U}}sunk in the sea. However, these {{U}} {{U}} 13 {{/U}} {{/U}}do not solve the problem completely, they merely store it, since an earth-quake could {{U}} {{U}} 14 {{/U}} {{/U}}open the containers like nuts. Thirdly, there is the problem of accidental exposure {{U}} {{U}} 15 {{/U}} {{/U}}to a leak or an explosion at the power station. {{U}} {{U}} 16 {{/U}} {{/U}}with the other two hazards, this is not very likely and does not provide a serious {{U}} {{U}} 17 {{/U}} {{/U}}to the nuclear program, {{U}} {{U}} 18 {{/U}} {{/U}}it call happen, as the inhabitants of Harrisburg will tell you. Separately, and during short periods, these three types of risk are no great cause for concern. {{U}} {{U}} 19 {{/U}} {{/U}}, though, and especially {{U}} {{U}} 20 {{/U}} {{/U}}much longer periods, the probability of a disaster is extremely high.

单选题Isn't it ________ when you learn something you've never known before?

单选题Playing organized sports is such a common experience in the United States that many children and teenagers take them for granted. This is especially true 1 children from families and communities that have the resources needed to organize and 2 sports programs and make sure that there is easy access to participation opportunities. Children in low-income families and poor communities are 3 likely to take organized youth sports for granted because they often 4 the resources needed to pay for participation 5 , equipment, and transportation to practices and games 6 their communities do not have resources to build and maintain sports fields and facilities. Organized youth sports 7 appeared during the early 20th century in the United States and other wealthy nations. They were originally developed 8 some educators and developmental experts 9 that the behavior and character of children were strongly influenced by their social surroundings and everyday experiences. This 10 many people to believe that if you could organize the experiences of children in 11 ways, you could influence the kinds of adults that those children would become. This belief that the social 12 influenced a person"s overall development was very encouraging to people interested in progress and reform in the United States 13 the beginning of the 20th century. It caused them to think about how they might control the experiences of children to 14 responsible and productive adults. They believed strongly that democracy depended on responsibility and that a 15 capitalist economy depended on the productivity of workers.