public to help them find the owner.

A couple of hours later, the dog's owner was informed and quickly rushed to the police station. The owner said that his 2-year-old golden retriever had a habit of hunting for mice and must have wandered far from home and got lost. He said that his dog was trained for a short while at a Nanning police base.

1. What happened to the dog?

A. It couldn't find its owner. B. It was driven away by its owner.

C. It escaped from hunters. D. It was terribly frightened.

2. What finally caused the policemen to help the dog?

A. The trouble brought by the dog. B. The pressure from the public.

C. The dog's friendly behavior. D. The dog's strange behavior.

3. Which description about the dog is correct?

A. It stayed at the station for over a day.

B. B. It didn't want to go home.

C. It likes eating mice.

C. It was once trained by the police.

　　Many of us don't pay much attention to the importance of eye care．It is said that if you take care of your body，then you can surely be healthy．That is why our eyes should be given a lot of care．Natural eye care should be put in a number one place．

There are several causes leading to poor eyesight like having not enough food，genes（基因）and aging（老化）．Televisions，computers and reading are also the causes of having poor eyesight．If you happen to work in front of the computer，it is best to take a break every once in a while．Something dirty can cause redness and they will make you feel uncomfortable．It is bad for your eyes，too．If this happens，the best way is to clean your eyes by using cold water．You must also try your best to protect your eyes from harmful things．For example，sunglasses are not just for fashion but they can also serve as a great way to protect your eyesight from UV rays．

Eating healthy food will do good to your eyesight．Remember that vitamins A，C and E are good for eyes．Try to eat food groups that have these vitamins．And you should do eye exercises which can protect your eyesight，too．If a person exercises regularly（定期地）and eats the right kind of food，his eyes will stay in good condition for a long time．

All above are natural ways of eye care that help us to keep healthy eyes．Being happy all the time can be helpful to a person's eyesight，too．In a word，eye care is very important，no matter how old a person is．

4. ______ is the most important way to protect our eyes．

A. Natural eye care　　　 B. Taking medicine

C. Seeing the doctor D. Being happy all the time

5. All the following causes can lead to bad eyesight EXCEPT ______ ．

A. aging B. height C. reading D. computers

What should you do if you have to work in front of the computer？ ______