题目

什么叫光的反射？ 答案：光碰到镜面改变了传播方向，被反射回来，这种现象叫做光的反射，也叫反光阅读理解。     It was reported that over 300 million people in China were suffering from short-sightedness (近视眼).      As more children suffer from eye trouble, their parents hope to cure the disease with medicine equipment by correcting the way children eat and sit. But in fact the cure given to one's eyes shouldstart with the exercise on one's feet. Three methods to protect eyes are as follows.     Firstly, don't fasten your shoes too tightly. Try wearing loose socks or walking bare-footed (赤脚)at home. When traveling, try wearing cloth shoes.      Secondly, walking on tiptoes (踮着脚) can help improve one's eyesight and prevent short-sightedness.It's said that few ballet performers are short-sighted.      Thirdly, rope skipping is good for one's eyesight. When skipping, one has to react quickly, whichexcites the brain as well as the eyes. It may also help make one grow taller.      Besides foot exercise, it is good to pull one's ears. Pulling the ear 20 times is a good way to reduce the pressure on one's eyes. 1. What's the best way to protect one's eyes? [     ]A. Curing the disease with medicine. B. Using the equipment to correct the way children read and sit. C. Starting with the exercise on one's feet. D. Taking showers very often. 2. The undeline word "tightly" means ______ in Chinese. [     ] A. 松地 B. 紧地 C. 长的 D. 短的 3. Fom the passage we know ______ aren't often suffeing from short-sightedness. [     ]A. people taking the medicine B. people using the equipment C. people wearing tight socks D. people performing ballet 4. Rope skipping can help one ______. [     ]A. grow taller B. react slowly C. sleep well D. walk fast 5. What's the best title for the passage? [     ]A. How to cue shot-sightednessB. Ways to protect eyes C. Foot exercise D. Pulling one's ears