Ⅷ.56.keep your eyes closed 57.seven to nine hours' sleep 58. coffee, tea and soda 59.eating / having a big meal 60. reading or listening to quiet music
Ⅸ.61.ran out of 62.To my surprise 63.in control of 64. Thanks to 65.to take a risk / to take risks Ⅹ.66.useful 67.called 68.are 69.eighth 70.minutes 71. from 72.to help 73.difference 74.activities 75.takes Ⅺ.76.What's the matter / the problem / the trouble / wrong (with you) / up 77. you have a fever / you have a cold / you are ill 78. What should I do
79. I hope you'll feel better soon
80. Thanks / Thank you (very much / a lot) Ⅻ.One possible version：
Quite a few students are short-sighted now. This is because some students watch TV for too long without breaks, and some keep their eyes too close to books when they read. Also, some even use smart phones to watch films, play games, read news too long. Poor eyesight causes problems in our life and makes study difficult. For example, we can't swim without glasses. We can't become pilots. So it's important to protect our eyesight. What should we do? First, we should relax after studying for hours. Second, we should keep doing eye exercises every day. Third, we must stay away from TVs, computers and smart phones. We shouldn't spend too much time on them. If we can do the above, I believe we will have good eyesight.
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