---Huangyan Island belongs to China.
---Surely it does! We Chinese will never__________it up.

Have you ever heard an echo of your voice?
An echo is a reflected(反射)sound. Stand in a very large, empty hall with nothing on the walls. Then shout. The sounds you make will hit the walls and come back to you. The walls reflect the sounds. These reflected sounds are called “echoes”.
We can use reflected sound to make sound travel farther. Hold a watch about fifty centimeters from your ear. You cannot hear it. The sound of the watch travels a short way in all directions. It does not travel as far as your ear. You can make it travel to your ear by using a roll of cardboard(纸板筒).
Make the roll of cardboard about fifty centimeters long. Put one end over your ear and hold the watch at the other. Now you can hear the watch because the sound has not gone in all directions. It is reflected down the roll to your ear.
A megaphone(喇叭筒)works in the same way. It makes sound travel farther. It reflects the sound into a beam which can travel a long way. In the ship, the sailor uses the megaphone to make his voice travel. Without the megaphone, his voice cannot travel far.
We use reflected sound in many ways. We use it to measure the depth of the sea, for example. Among the animals, bats and whales use reflected sound to tell them where they are and what things are near them.
【小题1】 Which is the right order of hearing our echo in a very large, empty hall?
a. We hear the reflected sound       b. The sound returns to us  
c. The sound hits the walls          d. We make a sound

Long long ago, a king had a big rock placed in the middle of a very busy road. Then he hid nearby to see if anyone would move the rock out of the way to make it convenient for others. Some of the king’s wealthiest supporters came past and simply walked around it. Many others complained about the rock and some blamed the king for the problem. To the king’s surprise, no one did anything about moving it out of the way.

Finally, a poor farmer came along, carrying a load of old vegetables. When he saw the rock, he put down his load, and tried to move the heavy rock to the side of the road. No one stopped to help him. Many laughed at him and made jokes as they walked past. Finally, after much pushing and straining, and with no help , the farmer managed(设法) to get the rock to the side of the road. As he bent down to pick up his vegetables, he noticed a small bag lying in the road, exactly where the rock had been. There was a lot of money and a note in the bag. The note was from the king saying that the money was for the person who moved the rock out of the way.

Taking responsibility(责任) is about solving hard problems. The farmer takes responsibility when no one else is prepared to. It does not always mean that you will get an instant reward, but it is a value that builds up a community, and makes life better for all of us.

1.The word “convenient” in Paragraph1 means        in Chinese.

A．重要的           B．方便的           C．必要的           D．有用的

2.Why did the king put a big rock in the middle of the road?

A．To see if anyone would move the rock away.

B．To see who was the most powerful.

C．To find out who was the most poorest.

D．To see how people walked around it.

3.Who moved the rock away？

A．The king                              B．The king’s supporters.

C．The wealthy                           D．A poor farmer

4.The story mainly tells us that           .

A．everyone should learn to take responsibility

B．nobody likes to solve hard problems

C．taking responsibility always means getting a reward

D．the poor always take more responsibility than the rich