单选题The story that my grandpa told me was very {{U}}touching{{/U}}. A. inspiring B. boring C. moving D. frightening

单选题The leaves have been swept into huge heaps.

单选题She will be very pleased to meet you. A. angry B. happy C. sad D. unwilling

单选题"Sorry, there are no tickets ______ for tomorrow' s performance, "the ticket officer said.A. preferableB. considerableC. accessibleD. available

单选题 The American Family In the American family the husband and wife usually share important decision making. When the children are old enough, they take part {{U}} {{U}} 1 {{/U}} {{/U}}. Foreigners are often surprised by the permissiveness of American parents. The old rule that "children should be seen and not heard" is rarely {{U}} {{U}} 2 {{/U}} {{/U}}, and children are often allowed to do what they wish without strict parental {{U}} {{U}} 3 {{/U}} {{/U}}. The father seldom expects his children to obey him {{U}} {{U}} 4 {{/U}} {{/U}}question, and children are encouraged to be independent {{U}} {{U}} 5 {{/U}} {{/U}}an early age. Some people believe that American parents carry this freedom {{U}} {{U}} 6 {{/U}} {{/U}}far. Others think that a strong father image would not {{U}} {{U}} 7 {{/U}} {{/U}}the American values of equality and independence. Because Americans emphasize the importance of independence, young people are expected to break {{U}} {{U}} 8 {{/U}} {{/U}}their parental families by the time they have {{U}} {{U}} 9 {{/U}} {{/U}}their late teens or early twenties. {{U}} {{U}} 10 {{/U}} {{/U}}, not to do so is often regarded as a failure, a kind of weak dependence. This pattern of independence often results in serious {{U}} {{U}} 11 {{/U}} {{/U}}for the aging parents of a small family. The average American is expected to live {{U}} {{U}} 12 {{/U}} {{/U}}the age of 70. The job-retirement age is {{U}} {{U}} 13 {{/U}} {{/U}}65. The children have left home, married, and {{U}} {{U}} 14 {{/U}} {{/U}}their own households. At least 20% of all people over 65 do not have enough retirement incomes. {{U}} {{U}} 15 {{/U}} {{/U}}the major problem of many elderly couples is not economic. They feel useless and lonely with neither an occupation nor a close family group.

单选题The Place too Effect When scientists want to test a new drug，they usually divide a large number of people 16 two groups. One group takes the medicine and the other takes a substance 17 as a placebo (安慰剂). It may contain nothing more than sugar. The people do not know which pill they are taking, the active one or the inactive one. In this kind of experiment, the medicine must perform 18 than the placebo to prove it is effective. Yet, people who take a placebo sometimes experience improvements in their health. This is known as "the placebo effect" —the effect of something 19 is not supposed to have any effect. Some doctors even use the placebo effect in their treatments. They might tell patients that a new drug will stop their pain. The patient does not know that the pills are 20 . The patient 21 the pills and later tells the doctor that the pain is gone. Now research in Sweden suggests that placebo treatments can also 22 the emotional effects of unpleasant experiences. The effects in the brain were similar to those seen when placebos have been used to ease pain. The researchers say that in both cases expectations of improvement are a major 23 on the effectiveness of placebos. The new study involved a group of people who looked at unpleasant pictures, 24 images of dead bodies. Predrag Petrovic of the Karolinska Institute in Stockholm led the study. The findings appeared in the publication Neuron (神经元). An influential study on placebos appeared in 1955. It said treatment with a placebo 25 patients feel better 35% of the time. But in 2001, Danish researchers reported that they had examined more than 100 studies. They found 26 evidence of healing as a result of placebos. Some researchers think a good relationship between a doctor and patient can increase the effectiveness of real medicines. In any case, some medical researchers are against the use of 27 . They think it is 28 to give some people inactive substances when testing new medicines. They say it would be better to 29 new drugs with existing drugs. That way, a study would show 30 the new drug is more effective.

单选题There was ample time to get to the airport.

单选题Norman Blamey is an artist of deep Uconvictions/U.

单选题Japanese Car Keeps Watch for Drunk Drivers A concept car developed by Japanese company Nissan has a breathalyzer-like detection system and other instruments that could help keep drunk or over tired drivers off the road. The car's sensors check odors inside the car and monitor a driver's sweat for traces of alcohol. An in-car computer system can issue an alert or even lock up the ignition system if the driver seems over-the-limit. The air odor sensors are fixed firmly and deeply in the driver and passenger seats, while a detector in the gear-shift knob measures perspiration from the driver's palm. Other carmakers have developed similar detection systems. For example, Sweden's Volvo has developed a breathalyzer attached to a car's seat belt that drivers must blow into before the engine will start. Nissan's new concept vehicle also includes a dashboard-mounted camera that tracks a drivers alertness by monitoring their eyes. It will sound an alarm and issue a spoken warning in Japanese or English if it judges that the driver needs to pull over and rest. The car technology is still in development, but general manager Kazuhiro Doi says the combination of different detection systems should improve the overall effectiveness of the technology. "For example, if the gear-shift sensor was bypassed by a passenger using it instead of the driver, the facial recognition system would still be used," Doi says. Nissan has no specific timetable for marketing the system, but aims to use technology to cut the number of fatalities involving its vehicles to half 1995 levels by 2015. The car's seat belt can also tighten if drowsiness is detected, while an external camera checks that the car is keeping to its lane properly. However, Doi admits that some of the technology, such as the alcohol odor sensor, should be improved. "If you drink one beer, it's going to register, so we need to study what's the appropriate level for the system to activate," he says. In the UK, some research groups are using similar advanced techniques to understand driver behavior and the effectiveness of different road designs.

单选题Food and Cancer Medical experts have suspected for many years that there is a strong link between what a person eats and cancer. They say a new study provides the first evidence that vitamins could reduce a person"s chance of developing cancer. A team of Chinese and American scientists did the study. They are from American National Cancer Institute and the Cancer Institute of the Chinese Academy of Medical Sciences in Beijing. The Journal of the National Cancer Institute published the results of the study. About thirty thousand people between the ages of 40 to 69 took part in the study. They were from the Northern Central Chinese area of Linxian. Most of them took vitamins and minerals every day for five years. Linxian was chosen because the people there have an extremely high rate of cancer of stomach and esophagus. Researchers believe that fungus and molds in local foods may be partly responsible for the high cancer rate. Researchers divided those into eight groups. Seven of the groups received different mixtures of vitamins and minerals daily. The amounts of the vitamins and minerals were 1 to 2 times greater than what American health officials say is needed. The eighth group received sugar pills that had no effect. Those who seemed to gain the most received a mixture of a form of vitamin A called D-carotene, vitamin E and the mineral selenium. The vitamin and mineral are believed to prevent damage to cells caused by cancer-causing substances. Researchers reported a 13 percent drop in cancer rates in those who took D-carotene, vitamin E and selenium. They also found a 10 percent drop in the number of deaths caused by strokes from bursting blood vessels. Scientists warn that it is too soon to know if the effect would be the same among people in other countries. They note that the people in Linxian eat foods that lack necessary vitamins and minerals. Chinese officials will continue to record the health records of the people in Linxian for many years. For now officials reportedly are considering using the results of the study. They want to find a way to improve the health of people in Linxian and other small towns in China.

单选题Can you follow the plot?

单选题We have never seen such Ugorgeous /U hills.

单选题He seems bizarre these days.

单选题They are concerned for the fate of the forest and the Indians who dwell in it.A. liveB. sleepC. hideD. gather

单选题Medicine Award Kicks off Nobel Prize Announcements Two scientists who have won praise for research into the growth of cancer cells could be candidates for the Nobel Prize in medicine when the 2008 winners are presented on Monday, kicking off six days of Nobel announcements. Australian-born U. S. citizen Elizabeth Blackburn and American Carol Greider have already won a series of medical honors for their enzyme research and experts say they could be among the front-runners for a Nobel. Only seven women have won' the medicine prize since the first Nobel Prizes were handed out in 1901. The last female winner was U. S. researcher Linda Buck in 2004, who shared the prize with Richard Axel. Among the pair's possible rivals are Frenchman Pierre Chambon and Americans Ronald Evans and Elwood Jensen, who opened up the field of studying proteins called nuclear hormone receptors. As usual, the award committee is giving no hints about who is in the running before presenting its decision in a news conference at Stockholm's Karolinska Institute. Alfred Nobel, the Swede who invented dynamite, established the prizes in his will in the categories of medicine, physics, chemistry, literature and peace. The economics prize is technically not a Nobel but a 1968 creation of Sweden's central bank. Nobel left few instructions on how to select winners, but medicine winners are typically awarded for a specific breakthrough rather than a body of research. Hans Jornvall, secretary of the medicine prize committee, said the 10 million kronor (U.S. $1.3 million) prize encourages groundbreaking research but he did not think winning it was the primary goal for scientists. "Individual researchers probably don't look at themselves as potential Nobel Prize winners when they're at work," Jornvall told The Associated Press. "They get their kicks from their research and their interest in how life functions." In 2006, Blackburn, of the University of California, San Francisco, and Greider, of Johns Hopkins University in Baltimore, shared the Lasker prize for basic medical research with Jack Szostak of Harvard Medical School. Their work set the stage for research suggesting that cancer cells use telomerase to sustain their uncontrolled growth.

单选题People from many places were drawn to the city by its growing economy.

单选题Mary just told us a very fascinating story.

单选题下面有3篇短文，每篇短文后有5道题。请根据短文内容，为每题确定1个最佳选项。 {{B}}第一篇{{/B}} U.S. Eats Too Much Salt People in the United States consume more than twice the recommended amount of salt, raising their risk for high blood pressure, heart attacks and strokes, government health experts said on Thursday. They found nearly 70 percent of U. S. adults are in high-risk groups that would benefit from a lower-salt diet of no more than 1,500 mg per day, yet most consume closer to 3,500 mg per day. "It's important for people to eat less salt. People who adopt a heart-healthy eating pattern that includes a diet low in sodium (钠) and rich in potassium (钾) and calcium (钙) can improve their blood pressure," Dr. Darwin Labarthe of the Centers for Disease Control and Prevention (CDC) said in a statement. "People need to know their recommended daily sodium limit and take action to reduce sodium intake (摄入量) ," Labarthe said. The study in the CDC's weekly report on death and disease used national survey data to show that two out of three adults should be consuming no more than 1,500 mg of sodium per day because they are black or over the age of 40 -- which are considered high-risk groups. Yet studies show most people in the United States eat 3,436 mg of sodium per day, according to a 2005-2006 CDC estimate. Most of the sodium eaten comes from packaged, processed and restaurant foods. The CDC said it will join other agencies in the Health and Human Services Department in working with major food manufacturers and chain restaurants to reduce sodium levels in the food supply. Nationwide, 16 million men and women have heart disease and 5.8 million are estimated to have had a stroke. Cutting salt consumption can reduce these risks, the CDC said.

单选题The river widens considerably as it begins to turn east.

单选题 下面有3篇短文，每篇短文后有5道题，每道题后面有4个选项。请根据文章的内容，从每题所给的4个选项中选择1个最佳答案。{{B}}第一篇{{/B}} {{B}}U.S. Blacks Hard-hit by Cancer{{/B}} Death rates for cancer are falling for all Americans, but black Americans are still more likely to die of cancer than whites, the American Cancer Society said Monday. In a special report on cancer and blacks, the organization said blacks are usually diagnosed with cancer later than whites, and they are more likely to die of the disease. This could be because of unequal (不平等的) access to medical care, because blacks are more likely to have other diseases as well, and perhaps because of differences in the biology (生物学) of the cancer itself, the report added. "In general, black Americans have less hope of surviving five years after diagnosis than whites for all cancer sites and all stages of diagnosis," the report said. "In describing cancer statistics for black Americans, this report recognizes that many of the differences associated with race may be caused by unfair social and economic differences and unequal access to medical care." The cancer society said blacks should be encouraged to get check-ups (体格检查) earlier, when cancer is more treatable, and it said more research is needed to see if biological differences play a role. "The new statistics emphasize the continuing importance of wiping out these unfair social differences through public policy and education efforts," the organization said in a statement. But it also noted a drop in cancer death rates. "Cancer death rates in both sexes for all sites Combined have dropped greatly among black Americans since 1992, as have incidence rates (发生率)," said the report.