单选题Americans are disturbed by generalizations others make about them because

单选题Make sure the table is securely anchored .

单选题The great changes of the city {{U}}astonished{{/U}} every visitor to that city. A. attacked B. surprised C. attracted D. interested

单选题It is a complicated problem.

单选题The {{U}}predominant{{/U}} activities in rural societies are those that involve the production of food and raw materials.

单选题You will be meeting her presently .

单选题 {{B}}International community{{/B}} Some people say the international community is only a fiction. Others say it is too elastic a concept to have any real meaning. Some say there are no internationally recognized norms, goals or fears on which to base such a community. Oped pages refer routinely to the "so called" international community. I believe these skepties are wrong. The international community does exist. It has an address. It has achievements to its credit. When governments, urged along by civil society, come together to adopt a statute for the creation of an International Criminal Court, that is the international community at work for the rule of law. When we see an outpouring of international aid to the victims of earthquakes in Turkey and Greece, witch is the international community following its humanitarian impulse. When people come together to ress governments to relieve the world's poorest countries from crushing debt burdens, that is the international community throwing its weight behind the cause of development. When the popular conscience, outraged at the carnage caused by land mines, obliges governments to adopt a convention banning those deadly weapons, that, too, is the international community in action. There are many more examples of the international community at work, from east Timor to Kosovo, but there are important caveats. Too often the international community fails to do what is needed. It failed to prevent the genocide in Rwanda. In East Timor, it acted too late to save many hundreds of lives and thousands of homes from wanlon destruction. The international community has not done enough to help Africa at a time when Africa needs it most and most stands to benefit, And it allows nearly 3 billion people—almost half of all humanity to subsist on $2 or less a day in a world of unprecedented wealth. The international system for much of our century has been based on division and hard calculations of realpolitik. In the new century, we can and must do better. I do not mean to suggest that an ear of complete harmony is within our reach. Of course, interests and ideas will always conflict. But we can improve on this century's dismal record. The international community is a "work in progress". Many strands of cooperation have asserted themselves over the years. We must now stitch them into a strong fabric of international community for an international era.

单选题阅读下面的短文，文中有15处空白，每处空白给出4个选项，请根据短文的内容从4个选项中选择1个最佳答案。 How a Terrible Battle Helped to Change Europe Ninety years ago on a sunny morning in Northern France, something happened that changed Britain and Europe for ever. At half past seven on the morning of July 1, 1916, whistles(哨子) blew and thousands of British soldiers left their positions to attack their German enemies. By the end of the day, 20,000 of them were dead, and another 30,000 wounded or missing. The Battle of the Somme, {{U}}(51) {{/U}} it is called, lasted for six months. When it ended, 125,000 British soldiers were dead. They had gained five kilometers of ground. This was one of a series of great battles during WWI. The attack on the Somme was staged to relieve {{U}}(52) {{/U}} on the French, who were engaged in a great battle of their own at a place called Verdun. By the time the battle ended, over a million French and German troops had been killed. About 17 million people were killed in WWI. There have been wars with greater numbers of dead. But there has never been one in {{U}}(53) {{/U}} most of the dead were concentrated in such a small area. On the Somme battlefield, two men died for every meter of space. Local farmers working in the land still {{U}}(54) {{/U}} the bodies of those who died in that battle. The dead of all nations were buried in a series of giant graveyards along the line of the border {{U}} (55) {{/U}} France and Belgium. Relatives and descendants(子孙) of those who died still visit these graveyards today. What the French call the "tourism of death" {{U}}(56) {{/U}} an important contribution to the local economy. It took a second great conflict before Europe was to turn {{U}}(57) {{/U}} war itself. Twenty-eight years after the Somme battle, a liberating army of British, American and Canadian troops took back {{U}}(58) {{/U}} from another German invasion. More than 500,000 people were killed. New {{U}}(59) {{/U}} were built. Two great conflicts across two generations helped to change the European mind about war. Germany, once the most warlike country in Europe, is now probably more in {{U}}(60) {{/U}} of peace than any other. One major cause of war in Europe was rivalry(竞争) between France and Germany. The European Union was specifically formed to end that {{U}}(61) {{/U}}. According to US commentator William Pfaff, "Europeans are interested in a slow development of civilized and tolerant international relations, {{U}}(62) {{/U}} on problems while avoiding catastrophes(灾难) along the way. They have themselves only recently {{U}}(63) {{/U}} from the catastrophes of WW Ⅰ and WW Ⅱ , when tens of millions of people were destroyed. They don't want {{U}}(64) {{/U}}." The last British veteran of the Somme battle died in 2005, aged 108．And WWI is passing out of memory and into history. But for anyone who wants to understand how Europeans {{U}}(65) {{/U}}, it is still important to know a little about the terrible events of July 1, 1916.

单选题I can't {{U}}put up with{{/U}} her endless complaint noise a moment longer.

单选题Silva issued a statement denying all knowledge of the affair.

单选题 A Sunshade for the Planet Even with the best will in the world, reducing our carbon emissions is not going to prevent global warming. It has become clear that even if we take the most strong measures to control emissions, the uncertainties in our climate models still leave open the possibility of extreme warming and rises in sea level. At the same time, resistance by governments and special interest groups makes it quite possible that the actions suggested by climate scientists might not be implemented soon enough. Fortunately, if the worst comes to the worst, scientists still have a few tricks up their sleeves. For the most part they have strongly resisted discussing these options for fear of inviting a sense of complacency that might thwart efforts to tackle the root of the problem. Until now, that is. A growing number of researchers are taking a fresh look at large-scale "geoengineering projects that might be used to counteract global warming. "I use the analogy of methadone," says Stephen Schneider, a climate researcher at Stanford University in California who was among the first to draw attention to global warming. "If you have a heroin addict, the correct treatment is hospitalization, and a long rehab. But if they absolutely refuse, methadone is better than heroin." Basically the idea is to apply "sunscreen" to the whole planet. One astronomer has come up with a radical plan to cool Earth; launch trillions of feather-light discs into space, where they would form a vast cloud that would block the sun's rays. It's controversial, but recent studies suggest there are ways to deflect just enough of the sunlight reaching the Earth's surface to counteract the warming produced by the greenhouse effect. Global climate models show that blocking just 1.8 percent of the incident energy in the sun's rays would cancel out the warming effects produced by a doubling of greenhouse gases in the atmosphere. That could be crucial, because even the most severe emissions-control measures being proposed would leave us with a doubling of carbon dioxide by the end of this century, and that would last for at least a century more.

单选题The desk was a chaos of papers and unopened letters.A. dileB. messC. chainD. mass

单选题Health or Profit Although there is no direct evidence that salt is the cause of high Mood pressure or "hypertension", there are studies which indicate that reducing salt intake lowers blood pressure. Some scientists are also concerned that excessive use of salt may cause asthma and kidney disease. Therefore most doctors would welcome a decision by food manufacturers to decrease the amount of salt in food. Many food manufacturers, however, are reluctant to reduce tile amount of salt. Salt is art important flavor enhancer and preservative. British Salt points out that salt is an essential nutrient and regular intake is required to maintain bodily functions. Moreover, according to British Salt, there are greater risk factors in hypertension, such as obesity (肥胖), lack of exercise, alcohol intake and smoking. Another reason why food producers are not keen on lowering the amount of salt is probably that they fear that less salt will mean lower sales. Not only will the sale of processed food containing salt decease but also the sale of soft drinks. A recent study, published in The Lancet of April 1999, proves that if manufacturers cut the salt content of food it will not necessarily affect the taste of the product. Anthony Rodgers and Bruce Neal conducted a study to examine the difference in taste between bread with standard and reduced salt content. Three types of whole-meal bread were prepared, identical in all respects except for salt content. One loaf contained the standard quantity, one loaf 10% reduced and one 20% reduced. Sixty participants, who did not know the salt content were asked to rate the taste on a scale from zero to ten. They also had to guess which loaf contained the standard, 10% reduced and 20% reduced quantity. Of the 180 guesses of salt content, 63 were correct, which is not different from what would be expected by chance. The study by Rodgers and Neal indicates that small reductions in salt content will not necessarily affect sales. If food manufacturers decide to diminish the amount of salt in food, blood pressure of the entire population will shift downwards, which may result in considerable health benefits. One of Britain"s largest supermarkets, Asda, has already decided to decrease the amount of salt in its products. The Asda products will contain up to 25% less salt.

单选题When Fear Takes Control of the Mind A panic attack is a sudden feeling of terror. Usually it does not last long, but it may feel like forever. The cause can be something as normally uneventful as driving over a bridge or flying in an airplane. And it can happen even if the person has driven over many bridges or flown many times before. A fast heartbeat, sweaty hands, difficulty breathing, a lightheaded feeling. At first a person may have no idea what is wrong. But these can all be signs of what is known as panic disorder. The first appearance usually is between the ages of 18 and 25. In some cases it develops after a tragedy, like the death of a loved one, or some other difficult situation. In the United States, the National Institute of Mental Health says more than two million people are affected in any one-year period. The American Psychological Association says panic disorder is two times more likely in women than men. And it can last anywhere from a few months to a lifetime. Panic attacks can be dangerous—for example, if a person is driving at the time. The Chesapeake Bay Bridge in the state of Maryland is so long and so high over the water, it is famous for scaring motorists. There is even a driver assistance program to help people get across. Some people who suffer a panic attack develop a phobia, a deep fear of ever repeating the activity that brought on the attack. But experts say panic disorder can be treated. Doctors might suggest anti-anxiety or an tidepressant medicines. Talking to a counselor could help a person learn to deal with or avoid a panic attack. There are breathing methods, for example, that might help a person calm down. Panic disorder is included among what mental health professionals call anxiety disorders. A study published last week reported a link between anxiety disorders and several physical diseases. It says these include thyroid disease, lung and stomach problems, arthritis, migraine headaches and allergic conditions. Researchers at the University of Manitoba in Canada say that in most cases the physical condition followed the anxiety disorder. But, they say, exactly how the two are connected remains unknown. The report in the Archives of Internal Medicine came from a German health study of more than 4,000 adults.

单选题 Excessive Demands on Young People Being able to multitask is hailed by most people as a welcome skill, but not according to a recent study which claims that young people between the ages of eight and eighteen of the so-called Generation M are spending a considerable amount of their time in fruitless efforts as they multitask. It argues that, in fact, these young people are frittering (浪费) away as much as half of their time as they would if they performed the very same tasks one after the other. Some young people are using an ever larger number of electronic devices as they study. At the same time they are working, young adults are also surfing on the Internet, or sending out emails to their friends, or answering the telephone and listening to music on their iPods or on another computer. As some new device comes along, it is also added to the list rather than replacing one of the existing devices. Other research has indicated that this multitasking is even affecting the way families themselves function as young people are too wrapped up in (沉湎于) their own isolated worlds to interact with the other people around them. They can no longer greet family members when they enter the house nor can they eat at the family table. All this electronic wizardry (魔力) is supposedly also seriously affecting young people's performance at university and in the workplace. When asked about their opinions of the impact of modern gadgets (小装置) on their performance of tasks, the great majority of young people gave a favourable response. The response from the academic and business worlds was not quite as positive. The former feel that multitasking with electronic gadgets by children affects later development of study skills, resulting in a decline in the quality of writing, for example, because of the lack of concentration on task completion. They feel that many undergraduates now urgently need remedial (补救的) help with study skills. Similarly, employers feel that young people entering the workforce need to be taught all over again, as they have become deskilled. While all this may be true, it must be borne in mind that more and more is expected of young people nowadays; in fact, too much Praise rather than criticism is due in respect of the way today's youth are able to cope despite what the older generation throw at them.

单选题You must shine your shoes.

单选题I {{U}}recommend{{/U}} you buy a computer. A. force B. advise C. ask D. require

单选题Eleven states, including the adjoining states of North and South Carolina, seceded from the United States in the 1860's and formed a southern confederacy. A．separated B．neighboring C．colonial D．competing

单选题A great deal has been done to better the situation.A. changeB. improveC. assessD. harm

单选题Charges for local telephone calls are outrageous .______