"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.
| 36. A. importance | B. experience | C. difference |
| 37. A. So | B. Because | C. But |
| 38. A. what to | B. how to | C. when to |
| 39. A. working | B. walking | C. waking |
| 40. A. and | B. or | C. as |
| 41. A. talk | B. rest | C. by |
| 42. A. the earth | B. the star | C. the sun |
| 43. A. him | B. us | C. you |
| 44. A. word | B. sentence | C. letter |
| 45. A. bad | B. good | C. weak |