Reading 1
We all want the best for our children: the best clothes and toys, the best schools, the best friends, the best life possible. As parents, we watch our kids` homework and the games they play, and we are careful to watch for alcohol, drugs, or violence in their lives. When we hear a car crash we make sure that our kids are not hurt. But we do not take them into the street to see the glass and the blood and the people hurt in the accident. So why do we let our children watch the TV shows that they choose. There are excellent programs on television for children. These programs are made for children, with valuable lessons for children about good and bad things, and about positive and negative actions. There are also terrible, upsetting programs on TV that are not made for children. These shows are made with violence, sex, or horror as the main subject. And now, because of VCRs, we can also bring movies like "Jaws" or "Halloween’s" home from video store to show on television. Children who watch television everyday on TV will begin to think that violence is normal. And one day, these children will become violent, too. Parents must be careful. What children watch on TV will change the way they think about the world. Their television education should be a valuable and positive education.
1. We don`t want our children to see car crashes because ____ .
A. they may be very frightened.
B.the children cry when they see them.
C.they can cause accidents later.
D.children are afraid of blood.
2. What does the writer say about good television programs?
A.They are good for children.
B.They are all about good things.
C.They are made only for children.
D.Children like to watch them a lot.
3. What happens to children who watch violence on television?
A. They like watching a lot.
B. They ask their parents to buy violent tapes.
C. They will become violent some day.
D. They don`t watch other programs any more.
4. The most important idea in the text is ____.
A.The writer thinks too much TV is bad for the kids.
B.It is the fact that too much TV is bad for the kids.
C.It is the fact that TV is not bad for the kids.
D.We all want the best for our children.
5. What kind of education can children get from TV?
A.negative B.positive
C.positive and valuable D.negative and valuable.

Reading 2
Have you ever shouted inside a large empty building? If so, you may have heard your voice come back to you. The sound of your voice hits the walls and bounces back. What you hear is the echo of your voice. You hear echo after you have shouted. This is because it takes time for the sound to travel to the walls and back to your ear again. Sound travels very fast, even faster than a speeding aero plane. In a thunderstorm, you see lightning first. Then a few seconds later, you hear the thunder. You can tell how near or how far the storm is by the length of time it takes for you to hear the thunder. If you hear it very soon after you see the lightning, the storm is very close. Many animals you their eyes to find their way. However, some animals such as bats, cannot see very well. Their ears are much better than their eyes, so they use their hearing to find their way. Since insect-eating bats are almost blind, they send out high sounds as they fly. These sounds bounce off anything in the bat`s way. The bat`s ears then pick up the echo. The echo tells the bat the safest direction to fly in. The echoes also bounce off insects in the air, so the bat knows where to find its food.
31. An echo is _____.
A. sound that large buildings make. B. time that sound takes to travel.
C. sound sent back from a surface. D. sound of a person`s voice.
32. During a thunderstorm, we_____.
A. see the thunder first. B. hear the lightning first.
C. see the lightning first. D. hear the thunder first.
33. It takes time for the sound of thunder to travel to our _____.
A. ears B. eyes C. nose D. mouth
34. Bats use echoes to _____.
A