Question

11．How to Improve Eyesight Naturally
Eyes are important for everybody．You must take care and try everything in your hand to keep them in good condition．Here are some of the tips to improve your eyesight naturally．
（46）AStrain is known to be a factor in many health conditions and eyestrain is no exception．Try meditation，yoga or other methods of stress relief to improve your vision and overall health．
Try palming．
Sit upright in a comfortable chair．（47）FCup your hands so that there is no pressure on your eyes．Let your fingers rest across your forehead．There should be no light entering your eyes．Palming should be done for a period of 5 to 10 minutes to start．Palming should be relaxing．It may help to do palming in a darkened room．
Avoid sugar as much as possible．
 （48）CIt will unpleasantly affect your eyesight，which affects the eyes by producing a larger amount of insulin （胰岛素） in the blood．Therefore you shouldn't be having much fruit juice or something that contains a lot of sugar．
Exercise your eyes．
The only exercise most eyes get is that daily rubbing we give them when we're tired or suffering from eyestrain．But eye exercises are actually good for your eyes and can improve your vision．（49）D Blink as fast as you can for a few seconds then close your eyes tightly，open and repeat．Do this exercise 3 to 4 times daily．
Eat healthy．
You probably hear that statement all the time but eating the right foods are necessary to good health．（50）EFoods that are high in fiber，vitamin C，D and beta carotene as well as other vitamins and minerals can help improve your vision．Here are a few foods that can be beneficial to good vision：carrots，eggs，blueberr ies，spinach，kale，grapes，and fresh garlic．

A．Reduce eyestrain．
B．Keep your eyes moist．
C．Sugar is your eye's worst enemy．
D．Give your eyes a workout with the following exercise．
E．You may not be aware that your diet affects your vision but it does．
F．Close eyes and cover them with the palms of your hands．
G．Be sure to get plenty of sleep so your eyes don't strain to stay open during the day．

Answer 1

分析 本文属于说明文阅读，作者通过这篇文章向我们介绍了如何提高自然视力．

解答 46．A．细节理解题，根据上文的句子"Strain is known to be a factor in many health conditions and eyestrain is no exception．"可知这里是：减少眼压．故选A．
47．F．细节理解题，根据下文的句子"Cup your hands so that there is no pressure on your eyes．"可知这里是告诉我们要闭上眼，用手掌覆盖在眼睛上．故选F．
48．C．细节理解题，根据这段的标题"Avoid sugar as much as possible．"可知这里是说：糖是眼睛最大的敌人．故选C．
49．D．细节理解题，根据下文的句子"Blink as fast as you can for a few seconds then close your eyes tightly，open and repeat．Do this exercise 3 to 4 times daily．"可知这里是：用下面的方法给你的眼睛锻炼．故选D．
50．E．细节理解题，根据上文的句子"You probably hear that statement all the time but eating the right foods are necessary to good health．"可知这里是：你可能没有意识到饮食会影响你的视力，但是它确实会．故选E．

点评 考查学生的细节理解和推理判断能力．做细节理解题时一定要找到文章中的原句，和题干进行比较，再做出正确选择．在做推理判断题时不要以个人的主观想象代替文章的事实，要根据文章事实进行合乎逻辑的推理判断．