单选题The director often says it is difficult to design a program that will meet the diverse needs of all our users.A. variousB. differentC. versatileD. distinguished

单选题One day last week he came to my house with a gloomy face.A. happyB. sadC. shiningD. angry

单选题The room is small but cozy.

单选题This book {{U}}embraces{{/U}} many subjects. A. adopts B. covers C: presses D. accepts

单选题His sole motive was to make her happy.

单选题California Gives Green Light to Space Solar Power Energy beamed down from space is one step closer to reality, now that California has given the green light to an agreement that would see the Pacific Gas and Electric Company buy 200 megawatt (兆瓦) of power beamed down from solar-power satellites beginning in 2016. But some major challenges will have to be overcome if the technology is to be used widely. A start-up company called Solaren is designing the satellites, which it says will use radio waves to beam energy down to a receiving station on Earth. The attraction of collecting solar power in space is the almost uninterrupted sunshine available in geosynchronous (与地球同步的) orbit. Earth-based solar cells, by contrast, can only collect sun light during daytime and when skies are clear. "But space-based solar power must grapple (努力克服) with the high cost per kilogram of launching things into space," says Richard Schwartz of Purdue University in West Lafayette, Indiana. "If you"re talking about it being economically viable or power of the Earth, it"s a tough go." he says. Cal Boer Man, Solaren"s director of energy services, says the company designed its satellites with a view to keeping launch costs down. "We knew we had to come up with a different, revolutionary design," he says. A patent the company has won describes ways to reduce the system"s weight, including using inflatable minors to focus sunlight on solar cells, so a smaller number can collect the same amount of energy. "But using minors introduces other challenges, including keeping the solar cells from overheating," says Schwartz. "You have to take care of heat dissipation (散发) because you"re now concentrating a lot of energy in one place," he says. According to the company"s patent, Solaren"s solar cells will be connected to radiators to help keep them cool. Though Boer Man says the company believes it can make space-based solar power work, it is not expecting to crowd out other forms of renewable energy. Laws in California and other states require increasing use of renewable energy in coming years, he points out. "To meet those needs, we"re going to need all types of renewable energy sources," he says.

单选题Old and Active It is well-known that life expectancy is longer in Japan than in most other countries. A 1 report also shows that Japan has the longest health expectancy in the world. A healthy long life is the result of the 2 in social environment. Scientists are trying to work 3 exactly what keeps elderly Japanese people so healthy, and whether there is a lesson to be 4 from their lifestyles for the rest of us. Should we 5 any changes to our eating habits, for instance, or go jogging each day before breakfast? Is there some secret 6 in the Japanese diet that is particularly 7 to the human body? Another factor 8 to the rapid population aging in Japan is a decline in birthrate. Although longer life should be celebrated, it is 9 considered a social problem. The number of older people had 10 in the last half century and that has increased pension and medical costs. The country could soon be 11 an economic problem, if there are so many old people to be looked 12 , and relatively few younger people working and paying taxes to support them. 13 the retirement age from 65 to 70 could be one solution to the problem. Work can give the elderly a 14 of responsibility and mission in life. It"s important that the elderly play active 15 in the society and live in harmony with all generations.

单选题{{B}}第三篇{{/B}} Acceptance of Chronic Illness For chronically ill patients, giving up the hope that they will get better may actually lead to more happiness, U.S. researchers suggest. "Hope is an important part of happiness, but there's a dark side of hope. Sometimes, if hope makes people put off getting on with their life, it can get in the way of happiness," Dr. Peter A. Ubel from the University of Michigan Health System said in a university news release. He and his colleagues studied patients who'd just had a colostomy (结肠造口术), which means their colons (结肠) were removed and they had to have howe1 (肠) movements in a pouch (小袋) outside the body. At the time of the surgery, some patients were told the procedure was reversible and they'd have a second operation in a few months to reconnect their bowels. Other patients were told the colostomy was permanent. The patients were followed for six months, and the researchers found that those without hope of regaining normal bowel function were happier than those with reversible colostomies. "We think they were happier because they got on with their life. They realized the cards they were dealt, and recognized that they had no choice but to play with those cards," Ubel said. "The other group was waiting for their colostomy to be reversed. They contrasted their current life with the life they hoped to lead, and didn't make the best of their current situation. " The study, published in the November edition of Health Psychology, also may explain why people whose spouse dies often recover better emotionally over time than those who get divorced, the researchers said. That's because people whose husband or wife dies have closure (结束), while those who get divorced may still have hope for some chance of making up, they explained.

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。请仔细阅读短文并根据短文内容回答其后面的问题，从4个选项中选择1个最佳答案。{{B}}第一篇{{/B}} {{B}} New Foods and the New World{{/B}} In the last 500 years, nothing about people--not their clothes, ideas, or languages--has changed as much as what they eat. The original chocolate drink was made from the seeds of the cocoa tree (可可树) by South American Indians. The Spanish introduced it to the rest of the world during the 1500's. And although it was very expensive, it quickly became fashionable. In London, shops where chocolate drinks were served became important meeting places. Some still exist today. The potato is also from the New World. Around 1600, the Spanish brought it from Peru to Europe, where it soon was widely grown. Ireland became so dependent on it that thousands of Irish people starved when the crop failed during the "Potato Famine (饥荒)" of 1845--1846, and thousands more were forced to leave their homeland and move to America. There are many other foods that have traveled from South America to the Old World. But some others went in the opposite direction. Brazil is now the world's largest grower of coffee, and coffee is an important crop in Colombia and other South American countries. But it is native to Ethiopia, a country in Africa. It was first made into a drink by Arabs during the 1400's. According to an Arabic legend, coffee was discovered when a person named Kaldi noticed that his goats were attracted to the red berries on a coffee bush. He tried one and experienced the "wide-awake" feeling that one-third of the world's population now starts the day with.

单选题What is most obvious in this book are all those details of daily living which make Mrs. Richard anything but common.

单选题He was beginning to feel uneasy about their visit.

单选题The government is debating the education laws.

单选题Reading the job ad, he wondered whether he was eligible to apply for it.

单选题It was a magic night unitil the Uspell/U was broken.

单选题He is but a child. A. probably B. not C. hardly D. only

单选题Many scientists have been probing psychological problems.

单选题In 1860 Andrew Johnson often risked his life by telling crowds of people that secession from the Union would be harmful.A. theftB. withdrawalC. educationD. judgement

单选题Most of the participants slept for 7 hours a night during the study.

单选题Diabetes Diabetes is a condition where blood glucose (sugar)levels are poorly controlled. Latest figures show that over 2 million people in the UK have diabetes, and an estimated 1 million people are undiagnosed and don't realize they have diabetes. If you' re living with diabetes you need to reduce your risk of developing associated diseases such as coronary heart disease, kidney and eye disease. This means losing weight, keeping your blood pressure and blood glucose as near normal as possible and having your cholesterol and tri - glycerides checked regularly. By choosing to eat a healthy balanced diet you'll already have started to manage diabetes by helping to control your blood glucose levels, blood fats and blood pressure. It will also help to regulate your weight. Even small weight losses lead to surprisingly big reductions in the risk of diabetes and will also reduce your risk of heart disease, high blood pressure and stroke. Finding the balance between the amount of carbohydrates and fat is important. Cut down on the amount of fat you eat - particularly saturated (animal)fats, as this type of fat is linked to heart disease. Choose monounsaturated fats, e. g. olive oil and rapeseed oil. Aim to eat a portion of oily fish at least twice a week. Eat regular meals based on starchy carbohydrate foods - such as bread, pasta, chapattis, potatoes, yam, noodles, rice and cereals. Include plenty of fresh fruits and vegetables. Whatever your weight, being fit and active reduces your risk of diabetes. Physical activity, when combined with a healthy balanced diet, will help you to manage your diabetes and prevent long - term complications. In recent years great strides have been made in the treatment of diabetes, but no one can deny the impact a diagnosis of diabetes can have on individuals. It' s important that you begin to make these changes to your diet as soon as you' re diagnosed. Managing diabetes is a daily challenge and carries its own health risks, especially the increased likelihood of heart disease.

单选题He has got a ______ period of three months to study abroad.A. slightB. shortC. delicateD. long