(B)

   Wearing the wrong type of glasses will do harm to your eyes. Incorrect glasses may not be good for the children under 10. You may see better with glasses that are specially made for you.

   Watching too much television may be bad for your eyes. This is not true for everyone. People with easily affected eyes may find they get red and achy (痛) from watching TV for long. Carrots will help you see in the dark. Carrots are rich in beta-carotene (β胡萝卜素). The body can change beta-carotene into vitamin A, and too little beta-carotene can cause night blindness. However, a lot of research shows that night blindness is more likely to be connected with some other vision problems.

34 Night blindness can be caused by _____.

  A. wearing incorrect glasses        B. watching TV for long  

  C. too little beta-carotene         D. too much vitamin A  

35 Watching TV for a long time may cause _______.

  A. night blindness            B. easily affected eyes 

  C. no eye trouble for some people      D. vision problems for everyone 

36 The purpose of this passage is to tell people _______ .

A. to have more carrots          B. how to protect their eyes

C. of the importance of their eyes      D. something more about their eyes

37 According to the passage, which of the following is TRUE?

  A. Eating too many carrots can cause night blindness. 

  B. Watching too much TV may do harm to everyone.

  C. Wearing wrong glasses may do harm to children's eyes.

  D. The human body is unable to change beta-carotene into vitamin

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