English Tutor（家教）Wanted

    Do you like kids? Are you outgoing（开朗的）? Do you have three years' experience（经验）as an English teacher? Do you have free time on Saturday or Sunday? We need a woman teacher for our daughter. She is twelve and she is not good at English.

    For the job, you will:

    Teach from 3:00 p.m.to 6:00 p.m.

    Play with our daughter.

    Tell her stories in English.

    You will work at our house. We live in Xinyuan Road, Garden District.

    The pay is $40 each hour

    If you want to know more information, please call Mrs.Yang at 82569876.

    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.

    You either have it, or you don't—a sense of1that is. But2is it that some people could find their way across the Sahara without a map, while others can3themselves in the next street?

    Scientists say were all4with 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 worked hard at5it. 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 way6,"says Jim Martland, Research Director of the project. "However,7they are not allowed out alone or are taken everywhere by car, they will8develop the skills. ”

    Jim Martland also emphasizes that young people should be taught certain9to improve their sense of direction. He makes the following suggestions:

    If you are using a map, turn it so that it10to the way you are facing

    If you leave your bike in a strange place, put it near11like a big stone or a tree. Note landmarks on the route as you go away from your bike. When you return, go back along the12route.

    Simplify the way of finding your direction by using lines such as streets in a town, streams, or walls in the countryside to guide you. 13your steps 14you know how far you have gone and note any landmarks such as tower blocks or hills which can help to find out were you are.

    Now you will never get lost15!