单选题The light in this lab is too ______to be used for close work.

单选题Once they had fame, fortune, and secure futures; ______ is utter poverty. A. now that all is left B. now all that is left C. now all which is left D. now all what is left

单选题He is a man of respectable ______.

单选题Julie wanted to become a friend of ______ shares her interests. A. anyone B. whomever C. whoever D. no matter who

单选题I promised to look ______ the matter as soon as I got there.

单选题Why does cream go bad faster than butter? Some researchers think they have the answer, and it comes down to the structure of the food, not its chemical composition—a finding that could help rid some processed foods of chemical preservatives. Cream and butter contain pretty much the same substances, so why cream should sour much faster has been a mystery. Both are emulsions—tiny globules (小球体) of one liquid evenly distributed throughout another. The difference lies in what"s in the globules and what"s in the surrounding liquid, says Brocklehurst, who led the investigation. In cream, fatty globules drift about in a sea of water. In butter, globules of a watery solution are locked away in a sea of fat. The bacteria which make the food go bad prefer to live in the watery regions of the mixture. "This means that in cream, the bacteria are free to grow throughout the mixture," he says. When the situation is reversed, the bacteria are locked away in compartments (隔仓 室) buried deep in the sea of fat. Trapped in this way, individual colonies cannot spread and rapidly run out of nutrients (养料). They also slowly poison themselves with their waste products. "In butter, you get a self-limiting system which stops the bacteria growing," says Brocklehurst. The researchers are already working with food companies keen to see if their products can be made resistant to bacterial attack through alterations to the food"s structure. Brocklehurst believes it will be possible to make the emulsions used in salad cream, for instance, more like that in butter. The key will be to do this while keeping the salad cream liquid and not turning it into a solid lump. (292 words)

单选题Opinion polls are now beginning to show an unwilling general agreement that, whoever is to blame and whatever happens from now on, high unemployment is probably here to stay. This means we shall have to find ways of sharing the available employment widely. But we need to go further. We must ask some fundamental questions about the future work. Should we continue to treat employment as the norm? Should we not rather encourage many other ways for self-respecting people to work? Should we not create conditions in which many of us can work for ourselves, rather than for an employer? Should we not aim to revive the household and the neighborhood, as well as the factory and the office as centers of production and work? The industrial age has been the only period of human history in which most people's work has taken the form of jobs. The industrial age may now be coming to an end, and some of the changes in work patterns which it brought may have to be reversed. This seems a discouraging thought. But, in fact, it could offer the prospect of a better future for work. Universal employment, as its history shows has not meant economic freedom. Employment became widespread when the 17th and 18th centuries made many people dependent on paid work by depriving them of the use of the land, and thus of the means to provide a living for themselves. Then the factory system destroyed the cottage industries and removed work from people's homes. Later, as transport improved, first by rail and then by road, people traveled longer distances to their places of employment until, eventually, many people's work lost all connection with their home lives and the places in which they lived. Meanwhile, employment put women at a disadvantage. It became customary for the husband to go out to paid employment, leaving the unpaid work of the home and family to his wife. All this may now have to change. The time has certainly come to switch some effort and resources away from the impractical goal of creating jobs for all, to the urgent practical task of helping many people to manage without full-time jobs.

单选题______, I wrote a letter to Henry Ford Ⅱ and told him what happened.

单选题A Poster Just as the sun is starting to shine and the days are getting longer, the examination period begins! I'd like to wish all students the very best luck in your exams and with your dissertations. For those of you who will be leaving us this summer, I hope that you will take with you fond memories of Birmingham and that you keep in touch. If you are staying in Birmingham over the summer, do try to come along to our summer garden party on 18 June. Spouses and children are very welcome to join us too. Summer Garden Party Wednesday 18, June 2007 From 2 p. m.—5 p. m. Celebrate the end of exams and the end of term with a summer garden party in the beautiful grounds of Westmere on Edgbaston Park Road. All international students, their spouses and children are welcome to join us. We'll have lots of party games as well as food and drink. What better way to mark the end of the academic year? If you would like to come along, please contact Mal Graham, international Student Assistant: 0121 414 2894 M. M. Graham@bham. ac. uk. We look forward to seeing many of you there. Have a great summer.

单选题The bus broke down, so all the passengers were ______ to another bus.

单选题The economy in the United States is heavily dependent on aluminum, a material widely used in the construction of buildings and in making such diverse things as cars, airplanes, and food containers. In 1979 Americans used over five million tons of new aluminum, and one and a half million tons of recycled aluminum. Some ninety percent of the bauxite (矾土) ore from which new aluminum is normally derived had to be imported, to meet the demand. Poorer ores are abundant in the United States, however, and researchers at Purdue University may recently have found a way to obtain aluminum magnetically from these. Although aluminum is not attracted by ordinary magnets, under special conditions it becomes temporarily "paramagnetic", or very weakly responsive to a magnetic field. This is achieved by immersing ore particles in water to which certain salts have been added and then filtering the ore through steel wool in the presence of a strong magnetic field. It is hoped that this technique will reduce the amount of high-grade aluminum the United States must import.

单选题New technology links the world as never before. Our planet has shrunk. It"s now a "global village" where countries are only seconds away by fax or phone or satellite link. And, of course, our ability to benefit from this high-tech communications equipment is greatly enhanced by foreign language skills. Deeply involved with this new technology is a breed of modern businesspeople who have a growing respect for the economic value of doing business abroad. In modern markets, success overseas often helps support domestic business efforts. Overseas assignments are becoming increasingly important to advancement within executive ranks. The executive stationed in another country no longer need fear being "out of sight and out of mind". He or she can be sure that the overseas effort is central to the company"s plan for success, and that promotions often follow or accompany an assignment abroad. If an employee can succeed in a difficult assignment overseas, superiors will have greater confidence in his or her ability to cope back in the United States where cross-cultural considerations and foreign language issues are becoming more and more prevalent (普遍的). Thanks to a variety of relatively inexpensive communications devices with business applications, even small businesses in the United States are able to get into international markets. English is still the international language of business. But there is an ever-growing need for people who can speak another language. A second language isn"t generally required to get a job in business, but having language skills gives a candidate the edge when other qualifications appear to be equal. The employee posted abroad who speaks the country"s principal language has an opportunity to fast-forward certain negotiations, and can have the cultural insight to know when it is better to move more slowly. The employee at the home office who can communicate well with foreign clients over the telephone or by fax machine is an obvious asset to the firm. (322 words)

单选题 The night is not what it was. Once, the Earth was cast half in shadow. Then came fire, candle, and light bulb, gradually drawing back the curtain of darkness. But a brighter world has its drawbacks. An estimated 30 percent of outdoor lighting--plus even some indoor lighting--is wasted. Inefficient lighting costs U. S. about ＄10.4 billion a year, according to Bob Gent of the International Dark-Sky Association, a nonprofit that aims to control light pollution. Last year in Sydney, an estimated 2.2 million Australians switched off their lights during "Earth Hour", briefly reducing that city's energy use by more than 10 percent. Motivated by such trends, more than two dozen cities worldwide went dim on March 29 this year in an hour-long demonstration. A number of groups are trying to measure light pollution and assess its effects on the environment in the hope that people will reduce their own contribution to the problem. Scientists aye trying to report how many stars we can see. In dark rural areas, about 2,000 stars are typically visible at night, compared with "maybe five" in a bright city square--and about 5,000 in centuries past. People who are working while others are star-gazing may face the greatest risks. Nighttime exposure to white light can cause the growth of tumors (肿瘤), experiments show. Two decades of research indicate that women who work night shifts have unusually high rates of breast cancer.

单选题Social etiquette in the United States allows people to ______.

单选题 Besides active foreign enterprises and a{{U}} (31) {{/U}} number of private employers, a consequential new development was the development of employment in state-owned enterprises (guanying or guanshang ). Started by some {{U}}(32) {{/U}} Qing officials, the yangwupai, in the late nineteenth century, sizable state-owned enterprises developed primarily {{U}}(33) {{/U}} enhancing China's national defense. Famous industrial giants of today's China such as the shipyards in Shanghai and heavy industries in cities like Wuhan, Nanjing, and Chongqing were built by the Qing or the Republic governments. Some of them later began to {{U}}(34) {{/U}} considerable private investment. After World War Ⅱ, this type of stateowned employment became very important. Labor in those enterprises consisted basically {{U}}(35) {{/U}} two tiers: a largely market-oriented allocation of blue-collar and some white-collar workers, and a mostly state allocation of most of the white-collar workers including managerial and technical personnel. The latter was a distorted labor market that featured strong {{U}}(36) {{/U}} considerations in allocating and managing labor. Personal and kinship connections, the so-called "petticoat influence," and political {{U}}(37) {{/U}} were the norm for this type of labor allocation pattern. In a way, it was midway between a rather crude market-oriented labor allocation pattern and the centuries-old, warm, family-based traditional labor allocation pattern. It covered a very small but important portion of the Chinese labor force, and thus {{U}}(38) {{/U}} our attention. Later, it apparently provided the historical precedent {{U}}(39) {{/U}} state-owned enterprises to allocate their administrative and technical cadres, even its entire industrial labor force, {{U}}(40) {{/U}} state employees.

单选题 Where you save your money often depends on what you are saving for. If you are saving to buy a dictionary or to go to a concert, then probably keep your money somewhere in your room. If you are saving for a big purchase like a mountain bike or a school trip, where would you save your money? One place to save money is the bank. Putting your money in a savings account will help your money earn more money. If you put your money in a piggy bank (猪形储蓄罐), one year later you'll still have the same amount of money you put in. If you put your money in a savings account, one year later, you'll have more money than you put in. Why? When you keep your money in a bank, your money earns interest. Interest is the amount of money a bank pays you to use your money. The bank uses your money ( and the money of other people, too) to loan money to people and businesses. The bank will send you a statement several times a year. A bank statement tells you how much money there is in your account, It also tells you how much interest you have earned, ff you leave your money in the bank, you can watch it grow! Another way you can save money is to buy a certificate of deposit or CD. If you have some money that you don't need to use for a long time, this is a good way to make your money grow. You can buy a CD at a bank. You agree not to use the money for a certain period of time. That period might be from six months to five years. You can't touch your money during that time. ff you do, you must pay a penalty, or fee. Since the bank is using your money for that time period, it will pay you interest. You will earn more interest with a CD than in a savings account. Can you guess why? It's because you promise to leave your money in the bank for a certain period of time. Banks pay different rates of interest. So, you may want to compare rates in newspaper ads before buying a CD.

单选题Pupn: Sorry, Mr. Wang. I'm late. My alarm clock didn't ring. Teacher: ______. A. It doesn't matter. These mings happen B. Excuse me, sir. I never accept any apologies at all C. Thank you. You' re welcome D. Never mind. You don't have to be so police

单选题How many people will be looking for jobs this year?

单选题 Many people think there is no need to take special care over home security. "I' m all right, I' m insured." Maybe--if you're fully insured. Even then you can never recover the real value you placeupon your possessions. But you can't insure against the upset and unhappiness that we all feel ifour homes are seriously damaged by some stranger, our windows and doors smashed, ourprecious possessions ruined. "It won't happen to me." Won't it? A home is broken into almost every minute of the day. Thefts of all kinds,including cars and property stolen, happen twice as frequently. "I' ve nothing worth stealing." You may think not. But in fact every one has something worth a thief's attention. And we allhave things of special value to us even if they' re worth little or nothing in cash terms. "I' m only a tenant here." The thief doesn' t care whether you' re a tenant or an owner-occupier. You' re just as likely tobe robbed. Have a word with the owner of the house if you think extra locks and fastenings arenecessary. "They' ll get in any way." Most thieves are always looking for easy jobs. They are soon discouraged by houses they can' tget into quickly and easily. So it' s worth taking care. This booklet will help you. It's based on the practical experience of police forces throughout the country. Most of thesuggestions will cost you only a few minutes extra time and thought. A few may involve someexpense, but this is small compared with the loss and unhappiness you might otherwise suffer. Ifyou are in doubt, ask for free advice from the Crime Prevention Officer at your local police station.