3．
If you want to see a thing well，touching can help you to"see"it better．
Your eyes can tell you that a glass ball is round．But by holding it in your hands，you can feel how smooth and cool the ball is．You can feel how heavy the glass ball is．When you learn all these about the ball，you really see it well．
With your skin，you can feel better．For example，your fingers can tell the difference between two different coins in your pockets．You can feel a little drop of water on the back of your hand，too．You can even feel sounds against your skin．Have you ever wanted to know why some people like very loud music？They must like to feel the sounds of music．
All children soon learn what"Don't touch!"means．They hear it often．Yet most of us keep on touching things as we grow up．In shops，we touch things that we might buy．To see something well，we have to touch it．The bottoms of our feet can feel things，too．You know this when you walk on warm sand，cool grass or a hard floor．All feel different under your feet．
Most museums are just for looking．But today some museums have some things to touch．Their signs say，"Do touch!"There you can feel everything on show．
There are ways of learning to see well by feeling．One way is to close your eyes and try to feel everything that is touching your skin．Feel the shoes on your feet，the clothes on your body，the air on your skip．
If you want to see better，reach out and touch it．Then you will really see!
51．The underlined word"these"in Paragraph 2refers to（指代）D．
A．a(chǎn) glass ball is round
B．a(chǎn) glass ball is smooth and cool
C．a(chǎn) glass ball is smooth，cool and heavy
D．a(chǎn) glass ball is round，smooth，cool and heavy
52．From Paragraphs（段落）4and 5，we can know thatA．
A．we have to touch something in order to see it well
B．we never touch things that we might buy in shops
C．the bottoms of our feet can't feel cool grass
D．we can see"Do touch!"in all museums
53．By touching things，you canC．
A．have a strange feeling B．know how to reach our your hand
C．learn more about them D．tell what colors they really are
54．Which of the following is NOT true？C
A．Touching is helping us to see better．
B．Our skin may help us enjoy music．
C．People don't have to learn to feel．
D．Most people touch things to see them well．
55．Dcan be the best title of the passage．
A．Feeling by Seeing B．To See or to Feel
C．Ways of Touching D．To See Better-Touch．
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