1、Unit 2Fit for life教材背景链接名言佳句名言佳句Cheerfulness is the promoter of health.Joseph Addison心情愉快是健康的增进剂。英国作家阿狄生丁Happiness lies，first of all，in health.G.W.Curis幸福首先在于健康。美国作家寇第斯G.W.如何让眼睛保持健康，缓解眼部疲劳呢？让我们一起做眼部运动吧！5 tips on how to exercise your eyes类文欣赏类文欣赏We all know how important it is to keep our bodies fit
2、by doing things like going to the gym，jogging，and swimming.But do you know that you can exercise your eyes as well？Eye exercising will keep your eyes healthy and help reduce eyestrain.Note that these steps are not meant to improve your vision，but to maintain it.Exercise 1：Movement.Sit and relax.Roll
3、 your eyes clockwise，then counterclockwise.Repeat 5 times，blinking in between each time.Exercise 3：Watch the time with your eyes.Imagine that you are standing in front of a really big clock.Look at the middle of the clock.Then look at any hour mark，without turning your head.Look back at the center.T
4、hen look at another hour mark.Do this at least 12 times.You can also do this exercise with your eyes closed.Exercise 4：Follow a pencil.Hold a pencil in front of you at an arms distance.Move your arm slowly to your nose.Follow the pencil with your eyes until you can keep it in focus.Repeat 10 times.E
5、xercise 5：Writing on the wall.Look at the wall in front of you and pretend that you are writing with your eyes.Dont move your head.This may seem difficult at first，but with a bit of practice it is really fun.The bigger the letters，the better the effect.Find the words in the passage that match the following explanations.1_ ntired or painful eyes as a result of too much reading，looking at a computer screen，etc.eyestrain(in Para.1)2_nability to see(in Para.1)3_ vto shut and open your eyes quickly(in Para.2)visionblink
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