(C)                                  
The Romans built great "aqueducts" to carry fresh water from the mountains to the cities. Many of these aqueducts are still standing today. The Romans also built great pipes under the ground to carry away the sewage. In Rome, one of these sewage pipes (sewers) is still used today; it is 2,000 years old. The Roman Emperors even set up a government health service. They built the first great public hospitals in Europe, and they paid doctors to look after poor people.                    
Then the Roman Empire fell to pieces, these civilized methods of treatment disappeared from most of Europe, for more than a thousand years. People went back to the old ways. They lived in dirty conditions which helped to cause diseases（疾病）; and they asked God to cure the disease. They shut mentally sick people in prisons. Or they  burnt them alive because they were supposed to have magic powers.                
But the work of the Greek and Roman doctors was not lost. Over a thousand years
ago, they Arabs moved into many of the Mediterranean countries. They took big parts of the old Roman lands. They translated the Greek and Roman medical books into Arabic. Arab doctors themselves make many new discoveries.
When civilization(文明) at last came back to Europe, men once again translated the Greek and Roman works on medicine into Latin. Slowly－very slowly －European doctors discovered again the things that the Greeks and Romans had known so long ago. Slowly, they began to make new discoveries. They found out more about the way the body works--the way our blood goes round our bodies, the way our nerves（神经） send messages from our brains to our muscles, the way these muscles move our bodies.
1.     The word "aqueduct" probably means _______.                                 A. something which was built long ago  
B. something invented by a Roman Emperor
C. a big pipe under the ground        
D. something built to supply clean water for the citizens
2. Which of the following is true?
A. The sewage pipes built by the Roman are no longer in use now.                  B. Sewage pipes in Arabia were built by the Romans.                           C. A sewage pipe still being used today in Rome was built 2,000 .years ago.          D. The ancient Romans got their drinking water from underground pipes.
3. Which of the following is NOT true?
A. A government health service was set up in ancient Rome.
B. The first public hospital in Europe was built in Rome.
C. m ancient Rome doctors were paid by the government.
D. Those who were mentally sick were all burnt alive in the Roman Empire.
4. In this article, "civilized methods of treatment" refers to _______.
A. advanced forms of health care
B. the way they burnt the bodies of the dead
C. imprisonment of the mentally sick
D. what was called magic power's