Computers can injure(伤害) you. Most other injuries happen suddenly. For example, if you a bike and break your arms, it happens very . But computer injuries slowly.You probably know how to ride a bike safely. Now learn to a computer safely.

Your eyes

light can injure your eyes, never sit too close to a computer screen. Your eyes should be 50 centimeters(厘米) the screen(平幕), Remember to look away from it sometimes. This gives your eyes a rest.

When you use a computer, the window 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 shine into your eyes.

Your hands and wrists (手腕)

Hand and wrist injuries can happen because the hands and wrists are moved in the same way times. If you use a keyboard for a long time, these three rules: 1) Rest your wrists on something. 2) Keep your elbows at the same height as the keyboard. 3) Stop something and exercise your hands, wrists and fingers in a different way.

Your back

Some people sit for many hours in front of a computer. If you sit in the wrong way, you can injure your back or your neck. So you should sit with your back straight. The top part of the screen should all 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 30 minutes and your arms, legs and necks.

your computer, but use it safely.

1.A. fall overB. fall downC. fall offD. fall onto

2.A. carefullyB. luckilyC. slowlyD. quickly

3.A. fixB. runC. rideD. drive

4.A. Too manyB. Too muchC. Much too D. Many more

5.A. so B. becauseC. but D. when

6.A. at last B. at mostC. at leastD. less than

7.A. toB. fromC. on D. away

8.A. sometimeB. some timeC. some timesD. sometimes

9.A. canB. mayC. must D. should

10.A. bothB. neverC. allD. none

11.A. hundred ofB. hundredsC. hundreds ofD. two hundreds

12.A. follow B. work C. copy(复制)D. write

13.A. oneB. everyC. both D. once

14.A. needB. exerciseC. moveD. climb

15.A. Enjoy B. Use C. Protect(保护)D. Keep

 

Newspapers are very important in our daily life. Many people begin their day by reading the paper. In this way they learn what is going on in the world. Sometimes, however, they didn't have the time to read the news carefully and must be pleased with a quick look at the front page. At other times they may be in such a hurry that they have time only to have a quick look at the headlines(标题).

There are newspapers to please every reader. In big cities there are many types with several different editions every day. In some towns there are fewer newspapers and perhaps only one edition each day. In some places the paper is printed weekly.

Most papers have several editions(版本), especially on Sundays when the edition is larger than usual. There are, besides the front page with the most important news, the sports news, the amusement(娱乐)page, a business page and so on.

1.People read newspaper to ____.

A. learn about the most important news   B. be pleased

C. learn about whatever they want   D. get some information

2. Reading the headlines, people can know ____.

A. what the passages are about      B. what is going on

C. learn about the most important news   D. about  sports

3.In big cities newspapers are usually printed ____.

A. daily    B. weekly   

C. monthly    D. yearly

4. Most papers have ____ on Sundays than usual.

A. more types  B. more pages  

C. less types  D. less pages

5.If you want to see a film, you’d better read ____ in a newspaper.

A. the business page     B. the front page    

C. the sports page       D. the amusement page

 

March 25 is the 17th National Day of Education on the Safety of Elementary and Middle School Students. The theme (主题)of the day this year is to give students more knowledge(知识) about how to keep safe.

   How can you keep yourselves safe? Here are some suggestions(建议).

When there is a fire: Shout out “Fire”! Call 119! Try to find a safe exit(出口) and get away quickly. Don’t use a lift(电梯). Use a piece of cloth to cover your mouth and nose.

When there is an earthquake(地震) at school: Stay calm(冷静的). Follow the teachers’ instructions(指导). Quickly move under the desk. Don’t jump out of windows or run out.

When you are on the street: Wait for the green traffic light. Look left and right before crossing the street. Don’t run across the street.

When you are eating: Wash fruits and vegetables carefully before eating them. Check the expiration dates(保质期) of the food. Don’t eat the food if it looks or smells bad.

When you are at school: Take care not to fall down or hurt yourself. Don’t run, jump or push while going upstairs(上楼) or downstairs. Take care of yourself all the time.

 

Suggestions on      1.

Situations

What you should do

What you shouldn’t do

Be on 2.

Shout out “fire”!     3.     119! Find a safe exit. Get away quickly. Use a piece of cloth to cover your mouth and nose.

 

Take a lift.

 

Have an earthquake

Stay calm. Follow the teachers’ instructions.

Move     4.    under the desk.

Jump 5. windows.

Run out.

Be on the street

Wait for the green traffic light. Look left and right before

6. the street.

Run across the street.

While 7.

Wash fruits and vegetables 8. . Check the expiration dates.

Eat 9. food.

While at school

Look 10.   yourself at any time.

Jump, run or push while going upstairs or downstairs.

 

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