I’ll make a call to you when she ________the airport.（到达）
Many ________ of animals lost their lives in the big forest fire in Australia last year.（百万）
My parents often buy me something nice, but nothing for ________.（他们）
We have a PE lesson on ________ afternoon.（星期三）
Programming Pain
Robots are useful and taking place of humans in some areas because they never get tired and can't feel pain. However, some researchers believe it's a good idea to program robots to feel pain.
Researchers from Leibniz University of Hannover in Germany are working to develop an artificial（人造的）robot nervous system to teach robots how to feel pain. "Pain is a system that protects us," said Johannes Kuehn, one of the researchers. "When we try to avoid the pain, it helps us not get hurt.”
Think about how many injuries you would receive if you couldn't feel pain. Even though pain hurts, it helps us avoid danger and treat our wounds. The same will be true for robots. As a great number of people work closely with robots, the robots must behave in a safer manner. Kuehn believes that by protecting robots from damage（伤害），they'll be protecting people as well. Damage,to robots if left unseen could lead to workplace accidents.
Rather than feel pain, some robots are designed to show pain or see it in others. Asada, an engineer at Osaka University in Japan, and his workmates have made sensors （传感器）that pick up many types of touch signals（信号）.These touch and pain signals can turn into emotions and expressions on a robot’s face. Asada believes that these systems could finally lead to robots seeing the pain on human faces, an important skill for robots designed to care for elderly people, for example.
Antonio Damasio, a professor at the University of Southern California, argues that programming robots with a sense of pain may cause an artificial sense of feeling to develop. But he says that this communication is not the same thing as a robot truly feeling and expressing emotions or pain. If one day, robots could actually feel as humans do, Damasio has a suggestion for the number one rule for robots: Feel good.
1.What does the word in Paragraph 3 refer to?
A.The feeling of pain. B.The injury we receive.
C.An artificial system. D.A new kind of robot.
2.Which is the right process to show and see the pain?
① Turn signals into expressions.
② Notice pain on human faces.
③ Make some sensors.
④ Pick up touch signals.
A.③④①② B.③①②④ C.②③①④ D.②④①③
3.What can express Antonio Damasio's attitude（态度）about the program?
A.Hopeless B.Opposite C.Expected D.Worried
4.The aim of programming robots to feel pain is ________
A.to take place of humans B.to avoid human accidents
C.to control robots completely D.to serve humans better
The distance between ancient Rome and ancient China was about 4,000 miles by land. There were terrible deserts and high mountains on the way. It was a very dangerous trip.
For a very long time, the ancient Romans did not know who was making this wonderful cloth called silk. The Romans first discovered pieces of silk in the goods they took from some of dead people they had conquered （征服）. But those people did not know where the silk was made. They only traded for the silk.
The Romans tried to find more traders as they came into villages to trade silk for other goods. But the traders did not know who made the silk either. In fact, the trading along the Silk Road was a relay （接力）system. One trader would travel for a while, stop and trade, and return home. The next trader would continue, stop and trade, and return home. And so it went. No trader made the whole trip because the trip was too dangerous.
As silk was becoming more and more popular, the demand for it in ancient Rome had grown. Ancient Rome had treasure. They hoped to find “The Silk People” to trade for more silk. But most never returned because they could not make it through the desert. They had to turn around and come back.
This went on for a very long time.
As the years went by along the Silk Road, temples appeared. There were even cities built on the oases （绿洲）. It was never easy to travel by land from ancient China to ancient Rome. But it was worth it. Ancient Rome traded treasure for ancient China’s silk and spices. In fact, more things travelled along the Silk Road than traders and goods. Ideas travelled along the Silk Road as well. The ideas changed the world.
1.Why was it difficult for the ancient Romans to know the silk maker?
A.Because the silk makers didn’t want to be conquered.
B.Because the silk makers wanted to make more money.
C.Because the traders never saw the silk makers.
D.Because the method of making silk was a secret.
2.Which of the words has the similar meaning to “demand” in paragraph 4?
A.Interest B.Price C.Need D.Value
3.What does the passage mainly tell us?
A.The discovery of ancient Rome. B.The importance of the Silk Road.
C.The history and value of the Silk Road. D.The international trade in ancient times.
4.According to the passage, which of the following statements is TRUE?
A.The Silk Road made a great difference to the world.
B.The ancient Romans wanted to conquer the traders.
C.Silk was the only thing that people traded along the Silk Road.
D.After building the temples, the travel was much easier than before.
