A Many of us don't pay attention to the impor?tance of eye care. It's said that if you take care of your body,then you can 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 eye?sight like not enough food,gene (基因) and aging

(年龄增长) ，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 rest every once in a while. Some?thing 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 thing. For example,sunglasses are not just fashion but they can also serve as a great way to protect your eyesight from UV rays.

Eating healthy foods will do good to your eye?sight. Remember that vitamins (维生素) A、C and E are good for eyes. Try to eat food groups that have these vitamins. And you should do eye exercises be?cause exercise protects your eyesight too. If a person exercises regularly (规律地) 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 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.

(   ) 26. 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

(   ) 27. All the following causes can lead to bad eyesight except         .

   A. age   B. height

   C. reading   D. computer

(   ) 28. What should you do if you have to work in front of the computer?

   A. Eat healthy foods.

   B. Clean the eyes by using cold water.

   C. Wear a pair of sunglasses.

   D. Have a rest after working for a while.

(   ) 29. What do the underlined words  " UV rays" mean?

   A. 沙土   B. 闪电   C. 紫外线   D. 超声波

(   ) 30. Which is the best title of the passage?

   A. Ways of Eye Care

   B. Ways of Eye Exercises

   C. Ways of Being Happy

   D. Ways of Being Healthy

Up to two thirds of children don't get as much sleep as they should do,and this can make them nervous and slower at school,researchers say.

So 16        should young people sleep each night? The answer is between 8 and 10 hours. If you don't get enough sleep at night,you'll have 17        energy the next day.

But the researchers say many children have missed out on 4,500 hours of sleep 18        the time they are 7 years old. They say that children miss sleep because they have TVs and computers in their rooms and 19        parents don't read to their younger children at night any more. The traditional "bedtime story" helps children to relax and fall asleep 20       . Children with TVs and computers in their bedrooms are more likely to sleep badly,and to get less than 8 hours' sleep. Even losing one hour's sleep a night can mean that children do less well at school.

German scientists think that your 21        keeps working while you are asleep. To show that they were 22      ,they gave two groups of people a problem to work out. One group went to sleep and the other group stayed 23       . The result? The people who slept worked out the answer more quick?ly,suggesting that their brains had been trying to 24        the answer while the people were asleep. So,make sure you get enough sleep tonight,25        you'll be at your best tomorrow.

(   ) 16. A. how much   B. how many

   C. how long   D. how often

(   ) 17. A. more   B. less   C. few   D. little

(   ) 18. A. by   B. at   C. on   D. during

(   ) 19. A. proud   B. free   C. poor   D. busy

(   ) 20. A. peacefully   B. carefully

   C. happily   D. sadly

(   ) 21. A. head   B. brain

   C. heart   D. thought

(   ) 22. A. perfect   B. bright

   C. right   D. great

(   ) 23. A. awake   B. alive

   C. asleep   D. absent

(   ) 24. A. think over   B. open up

   C. find out   D. put down

(   ) 25. A. or   B. but   C. if   D. and

(   ) 15. He died      an earthquake six years ago.

   A. of   B. from   C. to   D. for

(   ) 14. His mother is ill. He has to       her at home.

   A. look down   B. look up   C. look after   D. look in

(   ) 13. ―Where's your mother,Tom?

―In the kitchen. She      in it.

   A. cooks   B. is cooking

   C. cooked   D. has cooked

(   ) 12. The movie is well worth      . It's      moving that I've seen it twice.

   A. to see;enough   B. seeing;so

   C. to see;such   D. see;too

(   ) 11. -Excuse me. Could you tell me the way       the nearest supermarket?

―Go down the street and turn left. Then you'll see it.

   A. to   B. of   C. in   D. at

(   ) 10. ―When       the boy      his right arm?

―Two days ago.

   A. has;broken   B. is;broken

   C. did;break   D. was;broken

(   ) 9. ―Do you take exercise every day?

―Yes. I always        thirty minutes after supper.

   A. spend   B. cost

   C. take   D. pay

(   ) 8,Mike went to the library       some books yesterday.

   A. borrow   B. to borrow

   C. borrows   D. borrowed