'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. 小题1:A.importance B. experience C. difference 小题2:A. So B. Because C. But 小题3: A. what to B. how to C. when to 小题4: A. working B. walking C. waking 小题5:A. and B. or C. as 小题6:A. talk B. rest C. by 小题7:A. the earth B. the star C. the sun 小题8:A. him B. us C. you 小题9:A. word B. sentence C. letter 小题10: A. bad B. good C. weak