阅读短文，然后根据其内容选择正确答案。
Vision-phones
Radio , telephone and television are widely used in the world. When you turn on the radio , you can
listen. When you use the telephone, you can listen to others and chat with them , but you can't see anything
at all. Television is much better than both of them.People can watch TV and listen to it, but they can't take
part in what they see.
Today, some people are using a type of telephone, vision-phone. Two people can see each other
with it.
Vision-phones can be very useful when you have something to show the person. It may also have
other uses in the future.Some day you may phone a library and ask to read a book on your vision-phone,
you can do some shopping through it , too. Perhaps in the near future , vision-phone will be widely used in
our everyday life.
1. When you use the telephone, you can____.
A. listen to others
B. chat with others
C. see each other
D. A and B
2. Which one is NOT widely used in the world?
A. Radio
B. Telephone
C. Vision-phones
D. Television
3. When you are talking ,you can see each other from ____.
A. vision-phones
B. television
C. radio
D. telephone
4. What can we do with vision-phones?
A. Just listen to others.
B. Just chat with others.
C. Just watch.
D. Show something to others.
5. What will people do with vision-phones in the future?
A. Call up a library to read books and do some shopping.
B. Listen to others and chat with them.
C. See each other.
D. Watch and listen to.
材料三：右表为2003—2005年上海每天各种矿物能源消费量的平均值。 
