单选题{{B}}Passage One{{/B}} If those "mad moments"--when you can't remember what your friend has told you or where you left your keys--are becoming more frequent, mental exercises and a healthy brain diet may help. Just as bodies require more maintenance with the passing years, so do brains, which scientists now know show signs of aging as early as the 20s and 30s. "Brain aging starts at a very young age, younger than any of us had imagined and these processes continue gradually over the years," said Dr. Gary Small, the director of the Center on Aging at the University of California, Los Angeles. 'Tin convinced that it is never too early to get started on a mental or brain-fitness program," he added. In his book, The Memory Bible, the 51-year-old neuroscientist (神经学家) lists what he refers to as the 10 suggestions for keeping the brain young. They include training memory, building skills, reducing stress, mental exercises, brain food and a healthy lifestyle. "Misplacing your keys a couple of times don't mean you should start labeling your cabinets. Memory loss is not an inevitable consequence of aging. Our brains can fight back," he said. Small provides the weapons for a full-scale attack. Simple memory tests give an indication of what you are up against and tools such as "look" and "connect" are designed to make sure that important things such as names and dates are never forgotten. "So if you wanted to learn names and faces, for example, you meet Mrs. Beatty and you notice a distinguishing facial feature, maybe a high eyebrow," said Small. "You associate the first thing that comes to your mind. I think of the actor Warren Beatty, so I create a mental picture of Warren Beatty kissing her brow." Small admits it may sound a bit strange but he says it works. "Mental exercises could be anything from doing crossword puzzles and writing with your left hand if you are right handed or learning a language. It could be anything that is fun that people enjoy doing," he added.

单选题We are sometimes ______ of selfishness in our lives. A. miserable B. greedy C. guilty D. sorry

单选题For generations, the Nganyi people of western Kenya have served as rainmakers, helping local communities decide when best to prepare their land and sow their seeds. By observing subtle changes in nature that would be unnoticeable to most people—in air currents, the flowering and shedding of leaves of certain trees, the behaviour of ants, bird songs, etc—they have been able to interpret weather patterns and provide valuable advice. But the irregular weather patterns brought by climate change mean the rainmakers can no longer use those signs to make their predictions. And they don't have access to the technologies available to meteorologists(气象学家). "Climate change has come on so fast. People don't know how to adapt or what to plant," says Obedi Osore, a traditional Nganyi weatherman. "Our traditional crops are disappearing because they cannot handle the new conditions. We need new strategies to handle climate change. " Now a British-Canadian project is doing just that, linking the rainmakers with government meteorologists. The two groups get together each season and produce an agreed forecast to be spread using a variety of methods suited to communities where many cannot read or write—through ceremonies, public meetings and person -to-person communication. Both parties are pleased with the collaboration. "I think the two sciences are equally valid. We are marrying our energies to help people better," says Mr. Onunga, a Nganyi community elder involved in the project. "The results have been surprisingly good—the community agreed that the forecast was accurate," says Gilbert Ouma, a lecturer at the University of Nairobi. "Through this project we hope to learn what it is that we can share together to live today and to adapt to tomorrow," says Professor Laban Ogallo, leader of the Nganyi project.

单选题{{B}}Questions 21-25 are based on the following passage:{{/B}} I hear many parents complaining that their teenage children are rebelling. I wish it were so. At your age you ought to be growing away from your parents. You should be learning to stand on your own two feet. But take a good look at the present rebellion. It seems that teenagers are all taking the same way of showing that they disagree with their parents. Instead of striking out boldly on their own, most of them are clutching at one another's hands for courage. They claim they want to dress as they please. But they all wear the same clothes. They set off in new directions in music. But somehow they all end up just by listening to the same record. Their reason for thinking or acting in this way is that the crowd is doing it. It has become harder and harder for a teenager to stand up against the popularity wave and to go his or her own way. Industry has firmly carved out a teenage market. These days every teenager can learn from the advertisements what a teenager should have and be. And many of today's parents have come to award high marks for the popularity of their children. All this adds up to a greater barrier for the teenager who wants to find his or her own path. But the barrier is worth climbing over. The path is worth following. Find yourself. Be yourself. Popularity will come--with the people who respect you for whom you are. That's the only kind of popularity that really counts.

单选题Opponents of the retirement policy say

单选题Mark the novelist whose major works are characterized by the elements of the "grotesque"?

单选题The number of teachers in our college ______ greatly increased last term. A number of teachers in this school ______ from the countryside. A) was; is B) was; are C) were; are D) were; is

单选题Each and every difference ______contradiction． A．have B．contain C．contains D．will contain

单选题Theprogramoneducationis __________ watching.

单选题Todey this city is a highly skilled society without the urban sprawl and rural poverty that ______ larger nations.

单选题The next night, the blackest he ______ , the sea became so rough that the boat almost turned over. A．had ever known B．has ever known C．knew D．known

单选题He is so kind and easy-going that the kids go______him in a big way.

单选题There are many factors which may have an influence on adults and children being able to lead a healthy life. Nowadays, people are very busy. Often, both parents work outside the home. Children are expected to take on more responsibility at home to help their parents. They also have sporting and leisure activities as well as school expectations. The business also adds another factor: the need to use cars to get from one place to another quickly. Today, society places a lot of emphasis on technology. Computers, DVDs, CDs, television, Play Stations and Xboxes have become major leisure activities, rather than traditional more active pursuits. This has led to a more sedentary lifestyle. The media provide entertainment and information. Unfortunately, they also promote fast food which fits easily into busy lifestyles. It is much more convenient at times to buy a quick takeaway rather than prepare a meal. The media constantly bombard (轰炸) their audience with "perfect" body images, the need to buy the most fashionable clothes, the most up-to-date computer games, the best places to visit and the best things to do. Environments vary. We may be exposed to pollution, such as cigarette smoke. This can be harmful to people who suffer from breathing difficulties. Environments where passive smoking is unavoidable make it difficult to lead a healthy life. An important factor influencing healthy lifestyles is motivation or the desire to be healthy. Any person who wants to be healthy will find a way to be healthy —if he/she is motivated enough!

单选题A: Let"s meet again some time early next week and see what each of us comes up with. B: ______

单选题By the time you have completed the essential training, you ______ exposed to virtually every new feature of the course. A. will have been B. will be C. would have been D. would be

单选题It was the first time she ______ to a European country. A．was B．has been C．had been D．is

单选题Speaker A: I think women are much better drivers than men.Speaker B: ______