We always regard dogs as man’s best friends. But what about cats?
Cats can also do us a favor sometimes.
Here is a comparison of the two animals.
A Friend Helps You When You’re Sick.
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Dogs | When Catherine lay down on the sofa, Pepe stared(盯) into her eyes and kept sniffing(嗅). After being pushed away, he suddenly jumped onto her chest. That’s when Catherine felt a pain that made her visit a doctor, and a fast-growing cancer was found. Months later, however, Pepe started staring and sniffing again. It seemed strange, but sure enough, Catherine’s cancer had spread. |
Cats | Alana immediately finds a chair when Tee sits and stares directly into her face. That’s because Tee is warning her that she is about to faint(昏倒), which can happen as often as three times a day. But Alana won’t get hurt if she sits down. Not only does Tee warn Alana, but also her husband. Then the cat stays with Alana until she recovers. |
A Friend Saves Your Life
Dogs | Ryan fell into the water by accident. The river was full of ice, and Ryan was very cold and his body temperature was dropping dangerously low. Luckily, he was found by Chelsea, who was playing with her dog, Zion. “Zion knew the boy was in trouble,” says Chelsea. “Ryan grabbed onto the dog’s collar, and Zion just turned around and came back to the bank.” |
Cats | Bernice says: “I was sleeping in my bedroom, and then I was woken by Joey screaming and running”. Then she found smoke around her. With Joey helping her, she managed to get out of the door. “I found him in a mailbox when he was young and now I feel very lucky. Without him, I’d have probably died in the smoke.” |
1.When Alana is about to faint, Tee will ________.
A. stare at her and keep sniffingB. jump onto her chest suddenly
C. sit and stare directly into her faceD. scream and run
2.What can we learn about Ryan?
A. He likes swimming in rivers.
B. He has a lovely dog, Zion.
C. Chelsea helped him swim back to the bank.
D. He was in danger when he was found by Chelsea.
3.What happened when Bernice was sleeping?
A. She was badly hurt in a big fire.
B. She found the brave cat in a mailbox.
C. A fire broke out when she was sleeping.
D. She ran out of the burning house with the help of firemen.
Computers can injure(伤害)you. Most other injuries happen suddenly.For example,if you fall off a bike and break your arms, it happens very quickly. But computer injuries happen slowly.You probably know how to ride a bike safely. Now learn some ways of keeping you away from computer injuries.
Your eyes
Too much light can injure your eyes, so never sit too close to a computer screen. Your eyes should be more than 50 centimeters from the screen. Don’t forget to look away from it sometimes. This gives your eyes a rest.
When you use a computer, the window should be on your left or your right. If it is behind you, the light will reflect on(反射)the screen. If the window is in front of you,the sun and the screen will both shine into your eyes.
Your hands and wrists(手腕)
Hand and wrist injuries can happen because you move the hands and wrists in the same way hundreds of times. If you use a keyboard for a long time, follow these three rules:
Rest your wrists on something.
Keep your elbows(肘)as high as the keyboard.
Stop sometimes and exercise your hands, wrists and fingers in a different way.
Your back
Some people sit for many hours before a computer. If you sit in the wrong way, you can injure your back or your neck. So you should keep your back straight when you sit. The top part of the screen should be in front of your eyes. Your forearms, wrists, hands and the upper part of your legs should all be parallel(平行)to the floor. If you are sitting for a long time, get up every half an hour and exercise your arms, legs and neck.
Enjoy your computer, but use it safely.
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Title: How to use a computer safely | ||
Different 1. of your body | Causes of the injuries | Some2. of keeping you away from computer injuries |
Your eyes | ◆Too much light can injure your eyes | ◆Don’t sit too close to a computer screen. ◆Your eyes should be3. 50 centimeters from the screen. ◆4. to look away from the screen sometimes. |
Your5. and wrists
| ◆You6. them in the same way hundreds of times. ◆You use a keyboard for a long time. | ◆7. your wrists on something. ◆Keep your elbows as 8. as the keyboard. ◆Exercise your hands, wrists and fingers in different ways. |
Your back
| ◆You sit for many hours 9. a computer. ◆ You sit in the wrong way. | ◆You should keep your back 10. when you sit. ◆Get up every half an hour if you are sitting for a long time. |