If you are writing or studyin9，it makes ver．v much difference where the light comes from．People who 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 try to read． Your shadow（影子） falls all
over the page and makes it almost as bad for your eyes as if you were in a dark room．
Now turn around and face the window． The page is in the shadow again， while the bright light is
in your eyes．
Try sitting with your right side toward the window． This is very well for reading， but if you were writing， the shadow of your hand would fall across the page 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．
Which of the following is true? 查看材料
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．
A number of famous people have copied cats by taking cat naps during the day． The naps would usually last from 15 to 30 minutes． Winston Churchill took cat naps． So did Presidents Harry Truman，John F． Kennedy and Lyndon B．Johns
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