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  3. If you are writing or studying , it makes very much difference where the ligh...

If you are writing or studying , it makes very much difference where the ligh...

admin2020-12-24  33
问题 If you are writing or studying , it makes very much difference where the light comes from. People use books and pens every day have to be especially careful about the way the light shines on their work.
Every house gets its light either from daylight through the windows-which is the best to use-or from lamps or electricity；but whichever kind of light it is, the way it shines toward our book or work is a matter of great importance to the eyes.
Take a book , sit with your back toward the window and to read. Your shadow( 影子) falls all over the page and makes it almost as bad for your eyes if you were in a dark room.
Now tum around and face the window. page is in the shadow again , while the bright light in your eyes.
Try sitting with your right side toward the window. This is very well for reading , but you were writing ,the shadow of your hand would fall across the and bother(打搅)you a little.
There is just one other way: sit with your left side to the window. Now everything is perfect for reading and for writing ,too.
Whatever kind of light is in the room , the rule about the right to sit is always the same.
48. Which of the following is true?
选项 A.How the light shines on our work is of much importance.
B.The way the light shines on your work makes no difference.
C.We needn't care about where the light comes from.
D. People can write or study under a light that comes from any direction.
答案A
解析从第二段最后一句可知，不论是什么样的光，它照射在我们的书本上或者工作所需材料上的方式对我们的眼睛很重要。
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