It is a cold and dry winter morning. When you wake up, you feel that your throat hurts. You begin to sneeze and later you may cough. You must have a cold! Wait a moment. Could it just be a common cold or the flu (流感) that’s been going around?
A cold gives you a runny nose and cough. But it’s usually easy to deal with. Some take medicine while others drink herbal tea or chicken soup. Usually you feel better after a week.
On the other hand, the flu can be much more dangerous. It usually gives you fever. Sometimes it can cause death. According to an American magazine, the worst flu killed about 50 million people from 1918 to 1919.
Don’t worry. If you get a flu vaccine (疫苗), it can stop you from getting the virus (病毒). Flu vaccines work by giving the body a small amount of flu viruses. This causes your body to develop antibodies (抗体). So next time you get the flu, the antibodies should help you.
The flu virus changes every few years. Therefore, there are so many types of flu, such as H1N1 and H5N1. The antibodies for one type of flu can’t help us against all types of flu. That’s why we need to get the vaccine every year.
However, good health habits may also help stop you developing a cold or flu. Washing your hands often helps stop you from getting viruses. It is also important to get regular exercise and eat healthy food. All these can help you strengthen your immune system (增强免疫系统).
【小题1】If you have a common cold, usually you’ll feel better after ________.

During the day we work and play and at night we sleep．Our bodies rest while we sleep．In the morning we are ready to work and play again．It is while we are asleep that our bodies grow most．When children feel tired and angry，they usually need more sleep．We can get our lessons better，and we feel better，too，when we have had plenty of rest．Boys and girls，eight or nine years old，need ten hours of sleep every night．Our bodies need plenty of air when we sleep．If we do not get enough fresh air we wake up feeling tired．While in bed we must not cover our heads．If we do，our lungs（肺）will not get enough flesh air．If we open our windows at night we can have plenty of flesh air．Cool air is better than warm air．Boys and gifts must get plenty of sleep if they want to grow and be strong．

（    ）1．Our bodies grow most while we are ________．

    A．eating                  B．playing                 C．sleeping          D．exercising

（    ）2．Which is the best air for us? __________air．

    A．Hot                     B．Cool                    C．Warm             D．Dry

（    ）3．What often makes us feel tired in the morning?

    A．Too much air．                                       B．Not enough fresh air．

    C．Too much cold air．                                   D．Too much sleep．

（    ）4．How call you get plenty of flesh air at night? You can __________．

    A．open your windows                                 B．not sleep in bed

    C．sleep ten hours                                          D．go to bed late

（    ）5．The writer is trying to tell boys and girls _________．

    A．to get their lessons better                          B．not to cover their heads

    C．how to go to bed                                       D．to get plenty of sleep

You either have it, or you don’t－a sense of direction. But why is it that some people could find their way across the Sahara without a map while others can lose themselves in the next street?

Scientists say we’re all born with a sense of direction, but it is not properly understood how it works. One theory is that people with a good sense of direction have simply worked harder at developing it. Research being carried out at Liverpool University supports this idea and suggests that if we don’t use it, we lose it.

“Children as young as seven have the ability to find their way around,” says Jim Martland, research director of the project. “However, if they are not allowed out alone or are taken everywhere by car, they never develop the skills.”

Jim Martland also emphasizes that young people should be taught certain skills to improve their sense of direction. He makes the following suggestions:

If you are using a map, turn it so that it relates to(与……有联系) the way you are facing.

If you leave your bike in a strange place, put it near something like a big stone or a tree－something easy to recognize. Note landmarks on the route as you go away from your bike. When you return, go back along the same route.

Simplify(简化) the way for finding your direction by using lines such as streets in a town, streams, or wells in the countryside to guide you. Count your steps so that you know how far you have gone and note any landmarks such as towerblocks or hills which can help to find out where you are.

Now you will never get lost again!

1.Children have the ability to find the way around when they are ______ years old.

A．5                B．6                C．7                D．8

2.Which of the following things cannot be used as landmarks?

A．Tower blocks.      B．Hills.             C．Wells.            D．Bikes.

3.What does the underlined word “emphasize” mean in the passage?

A．To give special importance to something.

B．To express thanks for somebody.

C．To understand or become aware of a fact.

D．To admire somebody.

4.Scientists believe that __________.

A．some babies are born with a sense of direction

B．people learn a sense of direction as they grow older

C．people never lose their sense of direction

D．everybody has a sense of direction from birth

5.What may be the best title of the passage?

A．A research on direction.

B．A sense of direction.

C．People’s ability of finding the way.

D．Scientists’ research on skills.

---So you were in the supermarket __________ you heard a strange sound, right?

---That’s true. I ran out as quickly as possible.