What is the sky? How high is it? What color is it? What birds can live above it? These questions are difficult to answer, aren't they? In fact, the sky has no color. Then why does the sky look blue?

    We know that there is air around the world. When planes fly, they need air to lift their wings. Planes can't fly very high. That is because the air gets thinner when they go higher. The same will happen to us if we go high enough. If we go up about 1,200 kilometers from the earth, we'll find no air there. Some birds can fly into the sky as high as a plane, but they cannot fly or live without air.

    Looking up above us, you will see the blue sky with white clouds. It is usually light blue. The color would be bluer when you see on the top of a high mountain. And you will see fewer clouds in the sky between you and the sun. Sometimes the sky doesn't look blue. When the sun rises and falls, you will see red, orange and other colors in the sky, such are the most beautiful moments of the day.

    Who can see the colors of the sky high above the earth? The astronauts! They can see those beautiful colors of the sky from the outer space. However, before flying into the outer space, they sit in a spaceship high above the earth and there is no air at all. The sky would be that dark and its color would be black.

    Now you may understand that we see colors because the air scatters (使散射) the sunlight. Light travels through the air. Without air there would be no colors.

In China，there are many different kinds of food.Some of them are very popular.Dumplings are the real Chinese food.Now let's talk about them，OK？

Everyone in China likes dumplings very much，and there are many different kinds of dumpling—s.Some have meat and vegetables in them，others have sugar（糖）

Usually people make dumplings at home.If you have no time to make them，you can buy them in any supermarkets.Then you take them home and eat them with vinegar（醋）.

The Spring Festival is very important in China.When it comes，we make dumplings，usually we put a coin（硬币），he will be lucky in the year.

Now tell me，do you like dumplings？

Welcome to China，we'll ask you to eat the real Chinese food：dumplings.

A lot of people play sports, but very few people become sports professionals(专家). If sports aren't going to be your future, then why should you play them? Why should you train every day? Why should you work hard and feel sore(酸痛的) the next day? Wouldn't it be better to forget sports and only pay attention to your lessons? In fact, there are a lot of reasons to play sports.

First of all, sports are a great way to exercise. Exercising keeps you health y and strong. It also helps you stay in a good condition. When you exercise, your body makes endorphins(安多芬) which give you more energy and make you feel happier.

Also, sports teach young people how to communicate and work as a team. They teach young people to respect(尊重) their coaches, teammates and players from the other team. Many reports say that sports help young people stay out of trouble. If a young person plays sports, he or she may have fewer problems. This is because sports teach people about rules. They also teach people that if they work hard, they might succeed.

Another good way of sports is that they make people leave their houses. These days, a lot of people spend too much time watching television and playing video games. When you play sports, you go outside and exercise in the sun. You take in fresh air. All of these things are important.

All in all, maybe you' re not going to become a sports professional, but that doesn't matter, sports will help you become a better and happier person.

① Do you have a tidy desk or an untidy desk at home? Do you want to keep your desk clean and tidy for a long time? A tidy desk helps you find things easily and do things well. It is also helpful for your study. Doing these can help you with it.

② Only put things you need on your desk. For old books, you can put them in the bookcase. Get a box for small things you don't need. You can put your pens and pencils in a pencil box.

③ Don't put food or drinks on your desk.Food or drinks can make your desk dirty. Go to the kitchen when you want to eat.

④ Put important things next to you. Then it is easy for you to get them. If you have a drawer under your desk, you can put things there every day.

⑤ Clean your desk every day.If you do it every day, you can have a new day with a tidy room the next morning.

⑥ If you do the things, you can have a tidy and clean desk. Why not have a try now?

注意：（1）短文必须包括表格中的所有要点， 并适当发挥；（2）文中不得出现真实的人名和校名；（3）词数: 80—100: 短文开头已给出, 不计入总次数。

In the past, the food at our middle school dining hall was