单选题 (B) The way in which memory takes place is not known. Some psychologists (心理学家) think that there is a physical change in the brain ceils or nerves when learning takes place. Psychologists are also unable to say what makes people forget. Some things are forgotten quickly while others are always remembered. Sometimes a person seems to have forgotten certain material completely, yet is able to relearn the material more quickly than when he first learned it. In trying to understand memory, psychologists have done a lot of experiments. Psychologists have found that the conditions under which something is learned have an effect on how well it is remembered. When a great deal of material is to be learned, for example, to learn one thing at a time is better than to learn many things at a time. A person then learns more quickly and remembers better. Learning two similar things one after the other seems to have a bad effect on memory. When a person memorizes two sets of historical dates, one after the other, for example, he may mix up the two--the learning of new material prevents the remembering of the already learned material. Most forgetting takes place in the first day or so after learning. After that, forgetting happens more slowly. Material that is understood--such as ideas or riddles (谜语)--is not so easily forgotten. Very little forgetting takes place in time if an idea is well understood. The more meaningful the learned material is, the better it will be remembered.

单选题Liquid water changes to vapor, ______ is called evaporation.

单选题In the theatre the actors are very ______ to the reaction of the audience. A. sensible B. sensitive C. emotional D. positive

单选题The dentist ______ his decayed tooth again.

单选题Just as the clothes a person wears, the food he eats and the friends with whom he spends his time, his house ______ his personality.

单选题Foreign investment is expanding rapidly all over the world. Most of the foreign companies that have invested in the US are Japanese and European. An example of the Japanese company in the US is Toyota Motor Company, which produces cars. An example of a European company is Nestle of Switzerland. Nestle is a European company, but 99 percent of its investments are in other countries. In Europe, there are many examples of foreign investment. Many American companies have invested in Europe, and many Japanese companies have also invested in Europe. In recent years, much foreign investment has shifted from the US and Europe to Asia. Many companies from Japan, the US and Europe are investing heavily in China. Other parts of Asia, such as India and the countries of Southeast Asia, are attracting a lot of American, Japanese and European investment as well.

单选题A budget is a spending plan. It can help you spend money wisely. It can do this by cutting out wasteful spending. Of course, preparing a budget takes planning, and following a budget takes willpower (自制力). Your budget should meet your family"s needs and income. The first step in creating a budget is to set your goals. What does your family need and want? You must know all that to work out the details of the budget. Never spend more than you can. Then decide which goals are the most important. The next step is to estimate family income. Before you can plan wisely, you need to know how much money you have to spend! Write down all the money you expect to receive, such as wages, saving, interest, etc., during the planned budget period. After you have calculated how much money will be available, it is time to estimate expenses. List all your family expenses. Look carefully at your spending. Studying your records will show where overspending has occurred. It is also a good idea to set aside a small amount of money for emergencies. Every family has small emergencies.

单选题He will go to America next month, if he ______ ready then.

单选题"Mice says Jack may be here all next week. " "If so, he'd be able to go to the football game with us on Saturday, ______?" A. won't be B. hadn't he C. wouldn't he D. couldn't he

单选题He decided to go for a holiday by ship ______ the fact that he was usually seasick.

单选题The doctor is skilled at treating heart trouble and never accepts any gift from his patients, so he has a very good ______.

单选题______ you are leaving tomorrow, we can eat dinner together tonight.

单选题Many university courses are not really ______ to the needs of students or their future employers.

单选题Not until the visitors came to Hainan ______ how great the city is.

单选题The writer was so ______ in her work that she didn"t notice him enter the room.

单选题The message ______ Mr. Black was elected chairman of the committee arrived just in time.

单选题Kenya"s Tsavo Game Park ______ Susan of the wildlife park she had visited in New Jersey.

单选题—Don"t eat ice cream after dinner if you want to lose weight. —Don"t worry. I ______.

单选题Would you mind keeping a(n) ______ on our house for us while we're away? A. eye B. look C. hand D. view

单选题There are many older people in the world and there will be many more. A well-known fact is that over 60 percent of the older people live in developing countries. According to the World Health Organization, by 2020 there will be 1 billion, with over 700 million living in developing countries. It is a surprising fact that the population ageing is particularly rapid in developing countries. For example, it took France 115 years for the proportion of older people to double from 7 percent to 14 percent. It is estimated to take China a mere 27 years to achieve this same increase. What are the implications of these increased numbers of older folk? One of the biggest worries for governments is that the longer people live, the more likelihood there is for diseases and for disability (残疾). Attention is being paid to the need to keep people as healthy as possible, including during old age, to lessen the financial burden on the state. Another significant problem is the need for the younger generations to understand and value the older people in their society. In some Arican countries, certainly in Asia, older people are respected and regarded as the ones with special knowledge. Yet traditions are fading away daily, which does not ensure the continued high regard of older people. As society changes, attitudes will change. Much needs to be done to get rid of age discrimination(歧视) in employment. Life-long learning programs need to be provided to enable older people to be active members in a country"s development. Social security policies need to be established to provide adequate income protection for older people. Both public and private schemes are vital in order to, build a suitable safety net. To achieve equality in such matters will take considerable time and effort. One thing is sure: there is no time to be lost.