阅读下面短文，掌握其大意，然后从各题所给的四个选项（A、B、C和D）中，选出最佳选项。

BDU?????? www.chinadaily.com.cn/bdu

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??????????????????? BUSINESS?? DAILY???? UPDATE

Want to keep abreast of (了解…的最新情况) the dynamic pulse (有力的脉搏) of China’s economy?

Get a glimpse of the most important business activities taking place here every day???????????????????????????????????????????????????????????? through Business Daily Update, a service offered by China Daily information via the World Wide Web.

Placed under 10 categories, over 25 news items appear each day with the top three events highlighted all in English. Business Daily Update is just a few mouse clicks away.

Subscribe to BDU for an annual fee of US $240. Email and fax services are also Available upon request.

??? For more information, please contact Business Daily Update:

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1.If you get into BDU, you can _____________.

A. know more than what you expect in China?

B. get the most important business information in the world

C. get the information of the latest business activities taking place in China

D. get all the information in China Daily

2.This ad will be very helpful to ___________.

A. foreign business people??????????????? B. foreign travelers

C. Chinese people??????????????????????? D. China Daily reporters

3.To get the information from BDU every day, you must ____________.

A. understand Chinese???????????????????

B. know something about the mouse

C. know how to operate a computer?????????

D. how to use a fax machine

Directions; Complete the following passage by using the words in the box．Each word can only be used once Note that there is one word more than you need．

    A．actually    B．suddenly    C．impact     D．fitness    E．memories

    F．imaging    G．responsible     H．implications   I．boost     J．encouraging

If you want to 1._ your child's results at school, you could do a lot worse than ensuring that they do plenty of exercise．Scientists have already shown that physical activity can make you cleverer．A team in America has used scans to show that an important part of the brain _2._ grows in children who are fit．These youngsters tend to be more intelligent and have better _3._ than those who are inactive．

Scientists also found that one of the most important parts of their brains was 12 per cent larger than those of unfit youngsters．They believe that _4._ children to take exercise from a very young age could help them do better at school later．Researchers from the University of Illinois, in the U．S．, studied the brains of 49 children aged nine and ten using a magnetic resonance _5._ scan, a technique which provides very detailed pictures of organs and tissues in the body．

They also tested the _6._ levels of the children by making them run on a treadmill．The scientists found that the hippocampus（海马体）, a part of the brain _7._ for memory and learning, was around 12 per cent larger in the fitter youngsters．

Professor Art Kramer, who led the study published in the journal Brain Research, said the findings had important _8._ for encouraging individuals to take part in sport from a young age．"We knew that experience and environmental factors and socioeconomic status all _9._ brain development," he said．"If you get some lousy（坏的） genes from your parents, you can't really fix that, and it's not easy to do something about your economic status．But here's something that we can do something about．

Have you ever thought of taking a train and having an adventure？Riding the train can be a real adventure. That is how I feel every time I take Amtrak. I often take a four-hour trip to visit my children. Every time I take this trip I never know what will happen.

Last week when I was on the train, there was a man sitting by himself in the back of the train carrying on a mobile phone conversation—in another language. It was loud and disturbed most of the people on the train. I think it was annoying.

Fortunately I sat next to a wonderful old lady who was taking a two-day trip by train. She said her two daughters were worried at the thought of driving for three days to reach her home, although she had no trouble driving. The train ride was the only choice for her. She loved to look out of the window and watch the world go by on the train.

She was fun to talk to and asked me when my children started being parents. That is a very good question. Both of us are old and have children. She asked that same question from time to time.

There are always many people on the train from all walks of life, different countries, and many languages. Riding the train is a great way to increase your knowledge and learn all kinds of cultures. If you get hungry, you can buy food in the food car at any time. If you need to use the restroom, there is always one for you.

It surely beats driving the car, which has to stop for food and restrooms. And it is better than taking the bus.

1.According to the passage, the purpose of the author’s train ride was ______.

A．to do business                          B．to see her children

C．to visit places of interest                  D．to see her old friends

2.In the author’s opinion, on the train Amtrak ______.

A．the services are quite good                B．the food is terribly expensive

C．all the passengers are polite               D．all the passengers are American

3.What is the best title for this passage?

A．A painful experience on the train           B．A wonderful lady

C．Train ride—a cultural experience           D．The history of Amtrak

Autumn and winter are cold and flu seasons. Will the old advice about dressing warmly help prevent a cold, or if you get sick, should you follow the old saying, “feed a cold and starve a fever?” And what about that fever? Should you take medicine to reduce your temperature, or is it better to let the body treat the fever itself? Everyone seems to have an answer. But is popular wisdom valuable?
Doctor Nelson knows a lot about cold and flu seasons. Nelson says research may be just starting to provide proofs for long-held beliefs. For example, scientists for years were against the idea that getting cold and wet might cause colds or flu. But recent studies have shown that cold temperatures cause stress on the body, and that stress can create conditions more inviting to viruses. So maybe it does make sense to wrap up warmly before going outside.
And what about feeding a cold and starving a fever? Nelson says if you have a cold and are hungry, you should eat. But a fever, especially a high one, suggests a more serious problem. He says people are usually not hungry when they have a high fever. Eating might even make a person sick. But drinking enough water is important. A fever easily makes the body lose water.
Finally, when should you treat a fever? Nelson says a fever should be treated if it stays at
40℃ or above for a day or more. A high temperature can damage brain cells. The doctor also believes in treating a fever if it prevents a person from sleeping.
Medicine like aspirin, for example, can be used to reduce pain and fever. But aspirin should not be given to children because it can cause serious problems.
【小题1】We can learn from the passage that Doctor Nelson________.