( B )

    Do you have a beautiful dream? What are you going to be when you grow up? Almost everyone has their own dreams in their life. The dreams are very important to them. The dreams can make them work harder.

    Wu Jun is studying in a school now. His dream is to be a teacher in West China. Many children there want to go to school but they can't. Their families are very poor and their parents don't have enough money to send their children to school. But going to school and studying is the only way to change their life. Teachers are greatly needed there, so he wants to be a teacher to help them. He will be kind to his students and make friends with them. He will give them love and teach them how to be a useful person. He thinks it is the greatest job in the world.

根据短文内容，回答下列问题。

Dear Henry,

    I'm glad to know you are coming to my house next Sunday. But it is a little difficult to find my house. Go out of the train station, and go down West Street to the north. Don't turn left at the crossing, and just walk straight on. You can see a bus stop near a movie theatre on your left. Take the No. 2 bus there and get off at the fifth stop. Then you are on Garden Street. Go down the street and walk until you see a park. Walk across the park and you can find a bank on your right. My house is opposite the bank. I will meet you at the gate of my house. See you then.

Your friend,

Tom

    Have you ever counted the number of digits (数字) in your mobile phone number? Your number has 11 digits. You may sometimes find it hard to remember your number. {#blank#}1{#/blank#} Why is that?

    The 11 digits can be divided into three parts. {#blank#}2{#/blank#} The first three numbers tell you which mobile phone service provider you are using. For example, 135 is for the China Mobile Communication Corporation and 188 is for China Unicom. The fourth to the seventh digits tell you which area the number is recorded in. And the last four digits are random (随机的).

    {#blank#}3{#/blank#} We once had 10 numbers. But as our population grew, there were not enough numbers for us to use. So we began to use 11 digits starting from 1999.

    Eleven digits can be used to make tens of billions of mobile phone numbers, according to the Xinhua News Agency. That's enough for each person to have seven or eight phone numbers to use in China. {#blank#}4{#/blank#} Usually, the service provider will reuse a canceled number after three to six months. If you call a number that you haven't contacted (联络) for a long time, you may find that its owner has changed.

    Besides China, Britain and Japan also use 11-digit mobile phone numbers. But their numbers always start with. {#blank#}5{#/blank#} Countries like the United States, Australia and India use phone numbers with 10 digits. Canada's mobile phone numbers are perhaps the world's shortest: they use seven digits.

    Can you imagine astronauts' everyday life in space? {#blank#}1{#/blank#}They do the same things as us, but they do them differently.

    {#blank#}2{#/blank#} Gravity(重力) holds the food down and keeps the water in the glass. But there is almost no gravity in space, so food can float(漂浮)away, and astronauts must eat and drink carefully.

    Sleeping is very different in space. {#blank#}3{#/blank#} They tie the bag to a wall so that they won't float away, and astronauts must eat and drink carefully.

    Exercise is very important in space. On earth, your legs carry your body, but in space, astronauts float. {#blank#}4{#/blank#} This is very bad for their legs, so they must exercise for thirty minutes every day.

    After a day's work, astronauts relax. They may listen to music, read, watch films, play games, or talk to their friends and families by radio.{#blank#}5{#/blank#}

A. So they do not use their legs often.

B It's very expensive to take food into space.

C. Sometimes they just enjoy floating in the air.

D. They also need to eat, sleep, exercise and relax.

E. On earth, we put food on a plate and water in a glass.

F. Astronauts have already visited the Moon and lived on space stations.

G. Some astronauts like to float in the air, but most like to be in a sleeping bag.