"Eyes are windows of the soul." Everyone knows the 36 of the eyes. 37 more and more students are becoming near-sighted(近视). So how to protect the eyes is still a serious problem. Here is some advice on 38 protect your eyesight(视力).
You should not keep your eyes 39 for a long time. When reading, you should keep the books about a foot away from you. After reading for an hour 40 two, you 'd better have a 41 by looking into the distance(远处).
You must remember not to read in dark light or in 42, not to read on a moving bus or in bed. Doing eye exercises will help 43 to protect your eyesight.
In a 44 , to keep 45 eyesight, we must have good studying habits.
B. experience |
C. difference |
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B. Because |
C. But |
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B. how to |
C. when to |
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B. walking |
C. waking |
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B. or |
C. as |
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B. rest |
C. by |
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B. the star |
C. the sun |
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B. us |
C. you |
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B. sentence |
C. letter |
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B. good |
C. weak |