单选题Shy felt frustrated when nobody understood what she was trying to say.A. boringB. upsetC. angryD. dull

单选题Natural Medicines Since earliest days, humans have used some kinds of medicines. We know this because humans have survived. Ancient treatments for injury and disease were successful enough to keep humans from dying out completely. They were successful long before the time of modern medicine. Before the time of doctors with white coats and shiny (发亮的) instruments. Before the time of big hospitals with strange and wonderful equipment. Many parts of the world still do not have university-educated doctors. Nor do they have expensive hospitals. Yet injuries are treated. And diseases are often cured. How? By ancient methods. By medicines that might seem mysterious, even magical (有魔力的). Traditional medicines are neither mysterious nor magical, however. Through the centuries, tribal (部落的) medicine men experimented with plants. They found many useful chemicals in the plants. And scientists believe many of these traditional medicines may provide the cure for some of today"s most serious diseases. Experts say almost 80% of the people in the world use plants for health care. These natural medicines are used not just because people have no other form of treatment. They are used because people trust them. In developed areas, few people think about the source of the medicines they buy in a store. Yet many widely-used medicines are from ancient sources, especially plants. Some experts say more than 25% of modem medicines come, in one way or another, from nature. Scientists have long known that nature is really a chemical factory. All living things contain chemicals that help them survive. So scientists" interest in traditional medicine is not new. But it has become an urgent concern. This is because the earth"s supply of natural medicines may be dropping rapidly.

单选题Common-cold Sense You can"t beat it, but you don"t have to join it. Maybe it got the name "common cold" because it"s more common in winter. The fact is, though, being cold doesn"t have anything to do with getting one. Colds are caused by the spread of rhinoviruses, and, at least so far, medical science is better at telling you how to avoid getting one than how to get rid of one. Children are the most common way cold viruses are spread to adults, because they have more colds than adults—an average of about eight per year. Why do kids seem so much more easily to get colds than their parents? Simple. They haven"t had the opportunity to become immune to many cold viruses. There are more than 150 different cold viruses, and you never have the same one twice. Being infected by one makes you immune to it—but only it. Colds are usually spread by direct contact, not sneezing or coughing. From another person"s hand to your hand and then to your nose or eyes is the most common route. The highest concentration of cold viruses anywhere is found under the thumbnails of a boy, although the viruses can survive for hours on skin or other smooth surfaces. Hygiene is your best defense. Wash your hands frequently, preferably with a disinfectant soap, especially when children in your household have colds. But even careful hygiene won"t ward off every cold. So, what works when a coughing, sneezing, runny nose strikes? The old prescription of two aspirins, lots of water, and bed rest is a good place to start. But you"ll also find some of the folk remedies worth trying. Hot mixtures of sugar (or honey), lemon, and water have real benefits.

单选题下面的短文后列出7个句子，请根据短文的内容对每个句子做出判断：如果该句提供的是正确信息，请选择A；如果该句提供 的是错误信息，请选择B；如果该句的信息文中没有提及，请选择C。 Some sleep drugs do more than make you sleep The United States Food and Drug Administration(美国食品及药品管理局) has ordered com panies to place strong new warnings on thirteen drugs that treat sleep disorders. It also ordered the makers of the sleeping pills to provide information for patients explaining how to safely use the drugs. Last Wednesday, the FDA announced that some of these drugs can have unexpected and dangerous effects. These include the risk of life-threatening allergic(过敏性的) reactions. They also include rare incidents of strange behavior. These include people cooking food, eating and even driving while asleep. The patients later had no memory of doing these activities while asleep. Last year, a member of the United States Congress said he had a sleep-driving incident. Patrick Kennedy, a representative from Rhode Island, crashed his car into a security barrier near the building where lawmakers meet. The accident happened in the middle of the night and no one was hurt. Mr. Kennedy said he had earlier taken a sleep medicine. He said he was also being treated with stomach sickness drug that can cause sleepiness. The Food and Drug Administration did not say in its announcement how many cases of sleep driving it has documented. However, the New York Times reported last year about people who said they had strange sleep events after taking the drug Ambien. Some reported sleep-driving and sleep walking. Others said they found evidence after waking in the morning that they had cooked food or eaten in their sleep. But they had no memory of carrying out the activities. A Food and Drug Administration official says that these serious side effects of sleep disorder drugs appear to be rare. But, he also said there are probably more cases than are reported. He said the agency believes the risk of such behaviors could be reduced if people take the drugs as directed and do not drink alcohol while taking the drugs. The Food and Drug Administration has advised drug companies to carry out studies to investigate the problem.

单选题The expedition reached the summit at 10:30 that morning. A. top of the mountain B. bottom of the mountain C. starting point D. site

单选题Look After Your Voice Often speakers at a meeting experience dry mouths and ask for a glass of water. You can solve the problem by activating the saliva in you mouth. First gently bite the edges of your tongue with your teeth. Or, press your entire tongue to the bottom of your mouth and hold it there until the saliva flow. Or you can imagine that you are slicing a big juicy lemon and sucking the juice. Before you begin your talk, be kind to your voice. Avoid milk or creamy drinks which coat your throat. Keen your throat wet by drinking a little sweetened warm tea or diluted fruit juice. If you sense that you are losing your voice, stop talking completely. Save your voice for your speech. You may feel foolish using paper to write notes, but the best thing you can do is to rest your voice. If you need to see a doctor, perhaps you can get some advice from a professional singer. In the meantime, do not even talk in a low voice. What about drinking alcohol to wet your throat? I advice you not to touch alcohol before speaking. The problem with alcohol is that one drink gives you a little confidence. The second drink gives you even more confidence. Finally you will feel all-powerful and you will feel you can do everything, but in fact your brain and your mouth do not work together properly. Save the alcohol until you finish speaking. Perhaps you want to accept the advice, but you may wonder if you can ever change the habits of a lifetime. Of course you can. Goethe, who lived before indoor skating rinks or swimming pools, said, "We learn to skate in the summer and swim in the winter." Take this message to heart and give yourself time to develop your new habits. If you are willing to change, you will soon be able to say that you will never forget these techniques because they became a part of your body.

单选题She was unwilling to go but she had no choice．

单选题The river widens considerably as it begins to turn east. A. extends B. stretches C. broadens D. traverses

单选题Which of the following words is closest in meaning to "awkward" in paragraph 4?

单选题Following the success of chewing gum, schools handed out gum to school children.

单选题Mother Nature Shows Her Strength Tornadoes(龙卷风)and heavy thunderstorms moved across the Great Lakes and into Trumbull County on Saturday evening: The storms were dramatic and dangerous. George Snyder was driving the fire truck down Route 88 when he first noticed that a funnel (漏斗状的)cloud was behind him. "I stopped the truck and watched the funnel cloud. It was about 100 feet off the ground and I saw it go up and down for a while. It was moving toward Bradley Road and then suddenly it disappeared," Snyder said. Snyder only saw one of the funnel clouds that passed through northeastern Ohio on Saturday. In Trumbull County, a tornado turned trees onto their sides. Some trees feel onto houses and cars. Other trees fell into telephone and electrical wires as they went down. Amanda Symcheck was having a party when the storm began. "I knew something was wrong," she said. "I saw the sky go green and pink(粉红色). Then it sounded like a train rushing toward the house. I started crying and told everyone to go to the basement for protection. " The tornado caused a lot of damage to cars and houses in the area. It will take a long time and much money to repair everything. There was also serious water damage from the thunderstorms. The heavy rains and high wind caused the power to go out in many homes. The storms caused serious flooding in areas near the river. More than four inches of rain fell in parts of Trumbull County. The river was so hight that the water ran into streets and houses. Many streets had to be closed to cars and trucks because of the high water. This made it difficult for fire trucks, police cars, and other rescue vehicles to help people who were in trouble. Many people who live near the river had to leave their homes for their own safety. Some people reported five feet of water in their homes. Local and state officials opened emergency shelters for the people who were evacuated(撤走). The Red Cross served meals to them. "This was a really intense storm," said Snyder. "People were afraid. Mother Nature call be fierce. We were lucky this time. No one was killed. "

单选题I was most surprised to hear Susan's marriage.A. veryB. reallyC. moreD. least

单选题What {{U}}influenced{{/U}} you to do it?

单选题 下面的短文有5处空白，短文后有6个句子，其中5个取自短文，请根据短文内容将其分别放回原有位置，以恢复文章原貌。 {{B}}Passive Smoking Is Workplace Killer{{/B}} Pressure mounted on Britain on Monday to take action on{{U}} (51) {{/U}}smoking with new research showing second - hand smoke{{U}} (52) {{/U}}about one worker each week in the hospitality industry (服务行业). Professor Knorad Jamrozik, of Imperial (帝国的) College in London, told a conference on environmental tobacco that second – hand{{U}} (53) {{/U}}kills 49 employees in pubs, bars, restaurants and hotels each year and contributes to 700 deaths from lung cancer, heart{{U}} (54) {{/U}}and stroke across the total national work force. "Exposure in the hospitality{{U}} (55) {{/U}}at work outweighs (超过) the consequences of exposure of living{{U}} (56) {{/U}}a smoker for those staff," Jamrozik said in an interview. Other{{U}} (57) {{/U}}have measured the levels of exposure to passive smoking but Jamrozik calculated how it would translate into avoidable deaths. His findings are{{U}} (58) {{/U}}on the number of people working in the hospitality industry in Britain, their exposure to second - hand smoke and their{{U}} (59) {{/U}}of dying from it. Jamrozik said the findings would apply to{{U}} (60) {{/U}}countries in Europe because, to a greater or{{U}} (61) {{/U}}extent, levels of smoking in the community are similar. Professor Carol Black, president of the Royal College of Physicians, which sponsored the meeting, said the research is proof of the need for a ban on smoking in{{U}} (62) {{/U}}places. "Environmental tobacco smoke in pubs, bars, restaurants and other public places is{{U}} (63) {{/U}}damaging to the health of employees as well as the general public," she said in a statement. "Making these places smoke - free not only protects vulnerable (易受伤害的) staff and the public, it will{{U}} (64) {{/U}}help over 300,000 people in Britain to stop smoking completely," she added. Ireland recently became the first country to introduce a national ban on smoking in public{{U}} (65) {{/U}}. New York and parts of Australia have taken similar measures.

单选题It is (out of the question) that the inspector will come tomorrow.

单选题Diabetes (糖尿病) and Eye Damage Over 2 million Canadians have diabetes. It is the leading cause of blindness in North Americans under 65 years of age. Diabetes is a condition where the body either cannot produce enough insulin (胰岛素) or cannot respond properly to insulin. Insulin is important because it moves glucose (葡萄糖), a simple sugar, to the body"s cells from the blood. The food people eat provides the body with glucose, which is used by the cells as a source of energy. If insulin isn"t available or doesn"t work correctly to move glucose from the blood into the cells, glucose will stay in the blood, leading to high blood sugar levels. High blood sugar levels damage the blood vessels, including the tiny blood vessels in the eye. This leads to an eye disease known as diabetic retinopathy (糖尿病型视网膜病). The retina (视网膜) is an area at the back of the eye that changes light into nerve signals. With diabetic retinopathy, some blood vessels in the retina are lost, and some of the other blood vessels begin to "leak" blood. This causes the retina to swell, and gradually cuts off its supply of oxygen and nutrients (滋养物). Eventually, the retina starts to grow new blood vessels to replace the damaged ones. Unfortunately, these new vessels are not as strong as the old ones. They are more likely to break, causing bleeding in the eye. At first, people with diabetic retinopathy will not notice any symptoms. As the disease gets worse, they may notice blurred (模糊的) vision, black spots or flashing lights. As time goes on, it can progress to blindness. Everyone with diabetes is at risk for diabetic retinopathy, and the risk increases the longer you"ve had diabetes. Fortunately, you can reduce your risk. If you do not have diabetes, but think you may be at risk for this condition, visit your doctor to be screened for diabetes. If you do have diabetes: ·Have frequent eye check-ups. ·Make sure that you monitor your blood sugar frequently and use your medications as recommended by your doctor. There is evidence to show that keeping your blood sugar under tight control can slow down eye damage. ·If you have high blood pressure, follow your recommended diet and medications to keep it under control. If you are not sure whether you have high blood pressure, or whether your blood pressure is under control, discuss this with your doctor.

单选题The methods of communication used during the war were （primitive）.

单选题Unlike the common cold, flu tends to start abruptly.A. mysteriouslyB. seasonallyC. repeatedlyD. suddenly

单选题Below 600 feet ocean waters range from dimly lit to completely dark.

单选题High Percentage of Accidents Placing a human being behind the wheel of an automobile often has the same curios effect as cutting certain fibres in the brain. The result in either case is more primitive behaviour. Hostile feelings are apt to be expressed in an aggressive way. The same man who will step aside for a stranger at a doorway will, when behind the wheel, risk an accident trying to beat another motorist through an intersection. The importance of emotional factors in automobile accidents is gaining recognition. Doctors and other scientists have concluded that the highway death toll resembles a disease epidemic and should be investigated as such. Dr Ross A. McFarland, Associate Professor of industrial Hygiene at the Harvard University School of Public Health, aid that accidents "now constitute a greater threat to the safety of large segments of the population than diseases do. " Accidents are the leading cause of death between the ages of 1 and 35. About one third of all accidental deaths and one seventh of all accidental injuries are caused by motor vehicles. Based on the present rate of vehicle registration, unless the accident rate is cut in half, one of every 10 persons in the country will be killed or injured in a traffic accident in the next 15 years. Research to find the underlying causes of accidents and to develop ways to detect drivers who are apt to cause them is being conducted at universities and medical centres. Here are some of their findings so far: A man drives as he lives. If he is often in trouble with collection agencies, the courts, and police, he will have repeated automobile accidents. Accident repeaters usually are egocentric, exhibitionistic, resentful of authority, impulsive, and lacking in social responsibility. As group, they can be classified as borderline psychopathic personalities, according to Dr. McFarland. The suspicion, however, that accident repeaters could be detected in advance by screening out persons with more hostile impulses is false. A study at the University of Colorado showed that there were just as many overly hostile persons among those who had no accidents as among those with repeated accidents. Psychologists currently are studying Denver high school pupils to test the validity of this concept. They are making psychological evaluations of the pupils to see whether subsequent driving records will bear out their thesis.