Want to save the environment? You probably can't fix everything on your own, but by taking small steps and keeping the environment in mind every day, you can make a difference.

Think Green. Challenge yourself to think about the environment as you live your life. If you shut off lights when you leave the room and turn off your TV when you're not watching it, you'll save energy. If you take shorter showers, you'll save water.

Shop Green. Shopping is fun, but buying things you don't need is wasteful and bad for the earth. Before you buy something, ask yourself how much you'll really use it. Keep yourself away from buying products with unnecessary packaging, and whenever possible, buy things that were locally made instead of those shipped from far away.

Dress Green. Wear green trousers and T-shirts if you want. But what really matters isn't the color; it's how the clothes were made. If you want to help the environment, the best place to find clothes is at a vintage store, but you might not want to buy everything used. No matter where you shop, keep an eye out for products made from environmentally friendly materials like organic cotton, which is grown without the use of pesticides(杀虫剂).

Study Green. What's better than learning about the environment? Save it while you learn. It can be as simple as using both sides of a piece of paper before you recycle it, or reusing an old text book instead of buying a new one. If you want to do more, join an environmental group at your school, and encourage your friends to join, too.

The topic of this program is environmental protection. We human beings (do) a lot of things at the cost of the environment to develop economy quickly in the past few years. I do think it is time for us to understand the (important) of protecting the environment and do something about it. And today l would like(introduce) some simple but useful ways that we can follow (easy) in our daily life. Firstly, turn lights if they are unnecessary. Then, go out in environment-friendly ways such as by bus, by subway or by bike. We can even walk to school when possible, it is really helpful for both our budget and health. Thirdly, try our best to reuse things  books, paper and magazines. And we can also take a cloth bag when we go (shop). Please don't use plastic ones. Of course, the public should raise environmental awareness and realize it is(everyone) duty to protect the environment.

Last not least, the government should make laws to guide people's behavior.

If you are writing or studying, where the light comes from makes much difference. People who use1and pens every day have to be very careful about the2of the light shines on their work.

Every3gets its light either from daylight4 the window or from the lamps, 5no matter what kind of light it is, the way it shines is very important to the eyes.

Take a book and sit with your6 towards the window, and try to read. Your shadow(影子)falls all over the page and makes it7for your eyes as if you were in a8room. Now turnaround and face the window. The page is in shadow again, 9 the bright light is in your eyes. Try sitting with your10side towards the window. This is very good for reading, but if you were writing, the shadow of your hand11fall across the page and trouble you12. There is another way-sit 13your left side to the window. Now everything is perfect for reading and for14as well.

Whatever kind of light is in the room, the rule about the right way to sit is15the same. So you see different ways to sit make much difference to writing or studying.