Stress is the feeling you get when you're really worried about something. This is the kind of worry that troubles you for hours, or 1 days. It makes you feel blue, scared or angry. You may find it 2 to eat and sleep, or you might eat and sleep much more than usual.
Too much stress is bad for you. Stressing out can lead to serious 3 like heart illnesses. But a moderate (适度的) amount of stress keeps your body and 4 alert (警觉的) and can make your performance better, like when you are doing a presentation to your class or 5 to the finishing line.
    But, if you are seriously stressed out, look at these quick and easy ways to 6. Firstly, you can go for a run, play tennis or ride your bike for a while 7  exercise produces more beta-endorphin(B-内腓) that controls stress. Secondly, having a good 8 is very important. You should try to get at least eight hours of sleep every night. Thirdly, eating a healthy, balanced diet that 9 all the food groups will help. Also, you can talk to the people you trust . Keeping your feelings inside may make the situation10 while talking to a person you trust may make you feel better. They may be able to give you advice and help you solve your problem.

    Some students from Thailand write an article on the website(网页). They ask us to save the elephants in Thailand. They tell us that the elephant is one of Thailand's symbols. Their first flag had a white elephant on it. This is a symbol of good 1.

    Elephants are 2 animals. They can play soccer or music. They can also draw very 3. People say that “ An elephant never forgets.” Elephants can walk for a long time and 4 get lost. They can also remember places 5 food and water. This helps 6 to live.

    But elephants are in great danger. Elephants are losing their homes 7 people cut down many trees. People also kill elephants for their ivory. Today there 8 only about 3,000 elephants (over 100,000 before). We must save the trees and not buy things made of ivory. Don't forget that Thai Elephant Day is 9 March 13^th . Let's work together and 10 the elephants!

    In real life, robots are mainly used in factories. They do many different jobs. Usually these jobs are too 1, difficult or boring for humans.

Robots also help disabled people and people who cannot look after 2. For example, scientists are making a robot to help 3 people. Now many of them have a dog to help them. The dog is called a guide dog. In the future, guide dogs might be robot dogs.

One robot dog is called Meldog. It has wheels. It usually "walks" 4 its owner. It is very clever. It knows the speed of its owner's walk. Meldog talks to its owner by 5. The owner wears a special belt. This belt 6 instructions to the owner from Meldog such as "Stop here", "Turn left" and "Turn right".

    In the United States, another 7 of robot helps disabled workers. This robot, called Kilroy, helps disabled computer operators. The robot 8 the sound of its owner's voice. It follows instructions such as "Turn the page" and "Make a cup of coffee".

    Robots are also used in American 9. They can do simple jobs. For example, they shave (刮脸) patients and brush their teeth and take meals from the kitchen to patients' rooms. It never gets lost 10 this robot has a map of the hospital in its computer memory.