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As more students begin to use computers for a long time,more of them are feeling eyestrain(视疲劳).Just a few hours in front of a computer screen can make a person's eyes feel tired and painful.A number of doctors have studied this growing problem and have found ways to deal with it.Following their advice will help keef computer users more comfortable.Here is some advice.

The light in a room shouldn't be brighter than the computer screen itself.In many classrooms,however,the lights are far brighter than they should be.Students can prevent some of this light by wearing baseball caps if they are allowed at school.

A special computer screen should be used to cut down on bright light because it is especially tiring to the eyes Another problem to avoid is the wrong kind of contrast(对比).It is best to have dark letters on a light hackground.This causes less eyestrain than light letters on a dark background.

Students should he seated so that they are looking down at the computer screen rather than straight a head,which is a far more tiring angle(角度).The top of the screen should be a little lower than the top of the head.

The length(长度) of time students spend in front of a computer screen leads greatly to eyestrain.Students should rest a while by looking away from the screen every fifteen to twenty minutes.During that time they should either close their eyes or look at something at a distance.Long-term computer use can dry out the eyes,so students shouht remember to blink(眨眼)often while in front of the screen.

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Students’ life in America

Students in America always have a busy but wonderful school day.

They have classes for five days each week. From ________ to Friday students usually get up at seven. Then they wash their faces and have ________ . They usually have eggs, bacon(熏猪肉), bread, fruit and a glass of milk. After that they go to school on foot or by yellow school ________ .Some students ride bikes. They get to school at about half past eight. Then they put their ________ in their lockers and ________ only one book, a notebook and a pencil to each class. In a middle school, students have ________ for six hours. Their classes are English, Writing, Maths, Music, ________ and so on(等等).

At noon students don’t go home for lunch. They ________ have lunch at school. They often have meat, fruit, ________ , bread and a drink. ________ most students like pizza, hot dogs and hamburgers better. Students don’t have a short ________ .They go back to have classes ________ lunch until three o’clock. Then they go home.

Students don’t do their homework after they get home. They usually play or watch TV before ________. They have _______ at six in the evening. The supper usually has soup, meat, vegetables, rice or pasta(面食). After supper they do their ________ . Sometimes they play or talk with their parents at home.

1.A. Monday B. Tuesday C. Wednesday D. Thursday

2.A. dinner B.breakfast C. lunch D. supper

3.A. car B. bike C. bus D. plane

4.A. school bags B. clothes C. pencil boxes D. money

5.A. lend B.carry C. borrow D.take

6.A. meals B. a rest C. a talk D. classes

7.A. Chatting B. Sleeping C. Drawing D. Eating

8.A. really B.seldom C.usually D. never

9.A. vegetables B. games C. books D. competitions

10.A. So B. And C. Because D. But

11.A. sleep B. talk C. drink D. holiday

12.A. at B. before C. after D. in

13.A. midnight B. supper C. rest D. work

14.A.supper B.lunch C.breakfast D.nothing

15.A. homework B. housework C. cleaning D. washing

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