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PROTECTING EYES FROM COMPUTER SCREENS
Many of us spend the bulk of the day looking at computer screens. Reading this article means there’s a good chance you’re looking at one right now.
But does looking at computer screens damage your eyes? Professor Nathan Efron does not consider computer screens “harmful” to our eyes.
But he admits if you use one a lot, you increase your risk of becoming slightly more short-sighted –where your eyes focus well only on close objects while more distant objects appear blurreD.This is especially the case for children and young adults, whose eyes are still developing.
In the shorter term, prolonged viewing of a computer screen can make any slight existing vision defects more noticeablE.It can also give you what is sometimes known as “computer vision syndrome” – eye strain, headaches, gritty eyes and blurry vision. But this is only temporary and can be minimized by:
Adjusting the screen display so the contrast is high and the brightness feels comfortablE.
Having lighting that does not produce glare on the screen.
Giving your eyes regular rests from looking at the screen (The Optometrists Association of Australia recommends you do this for five to ten minutes every one to two hours of computer usE.It's a good time to make phone calls or do other tasks.)
1. Many of us spend much time looking at computer screens. {T; F}
2. Looking at computer screens for long time doesn’t damage children and young adults’ eyesight. {T; F}
3. Computer vision syndrome cannot be weakeneD.{T; F}
4. It’s good taking breaks during screen watching. {T; F}
5. Proper lighting is important to protect our eyes. {T; F}

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SURVEY ON NEW EMPLOYEESALEX: {A.Are you kidding?; B.Tell me, did anything else influence your decision?; C.Yes, there has been a lot of research into RSI’s.; D.that’s a benefit in the long run.; E.Welcome to the company.} We are conducting a survey of new employees to find out what made you to choose our company.SIMON: That’s easy to answer. It was your office ergonomics that convinced mE.ALEX: {A.Are you kidding?; B.Tell me, did anything else influence your decision?; C.Yes, there has been a lot of research into RSI’s.; D.that’s a benefit in the long run.; E.Welcome to the company.} Something as simple as that?SIMON: Yes. It is very important to mE.My mother worked in offices for twenty years, and she finally suffered from carpal tunnel syndromE.I have been reading about repetitive stress injuries (RSI’s), and I know that the office set-up is very important.ALEX: {A.Are you kidding?; B.Tell me, did anything else influence your decision?; C.Yes, there has been a lot of research into RSI’s.; D.that’s a benefit in the long run.; E.Welcome to the company.} Something so simple as proper chair height can prevent injuries.SIMON: Your company pays attention to the staff’s health. In my opinion, {A.Are you kidding?; B.Tell me, did anything else influence your decision?; C.Yes, there has been a lot of research into RSI’s.; D.that’s a benefit in the long run.; E.Welcome to the company.}ALEX: Thank you. We do value our staff and have an awareness of health carE.{A.Are you kidding?; B.Tell me, did anything else influence your decision?; C.Yes, there has been a lot of research into RSI’s.; D.that’s a benefit in the long run.; E.Welcome to the company.}SIMON: Yes, I noticed that you have professional training and team-building days. I like the idea of working for a company that invests in its stafF.ALEX: Well, welcome to the team.

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The computer plays an important part in our everyday lifE.It is one of the great inventions in the world in the {A.twenty; B.twenties; C.twentieth} century. It works for us not only at home, in the offices, in big shops,{A.Also; B.But also; C.Too} at schools. Today it is used in many ways. It really brings the world large wealth (财富) and happiness.The first computer in the world was called EniD.It was built in America in 1946. It was large and heavy. {A.For; B.Until; C.Since} it was born, it has been developing very fast. Until now it has gone through four periods and changed a lot. There’re many kinds of computers. Computers are getting smaller and smaller and computing faster and faster. It becomes more and more helpful.The computer can do most of the things {A.for; B.to; C.at} the peoplE.It can help us to know about the real world more quickly, to learn {A.what; B.that; C.which} we want to learn and to think for ourselves. As a student in the twenty-first century, you must work hard at it.

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