Runners in a relay（接力） race pass a stick in one direction．However, merchants passed silk, gold, fruit, and glass along the Silk Road in more than one direction．They earned their living by traveling the famous Silk Road．
The Silk Road was not a simple trading network．It passed through thousands of cities and towns．It started from eastern China, across Central Asia and the Middle East, and ended in the Mediterranean Sea．It was used from about 200 B．C．to about 1300 A．D．, when sea travel offered new routes（路线）．It was sometimes called the world’s longest highway．However, the Silk Road was made up of many routes, not one smooth path．They passed through what are now 18 countries．The routes crossed mountains and deserts and had many dangers of hot sun, deep snow and even battles．Only experienced traders could return safe．
The Silk Road got its name from its most prized product．Silk could be used like money to pay taxes or buy goods．But the traders carried more than just silk．Gold, silver, and glass from Europe were much found in the Middle East and Asia．Horses traded from other areas changed farming practices in China．Indian merchants traded salt and other valuable goods．Chinese merchants traded paper, which produced an immediate effect on the West．Apples traveled from central Asia to Rome．The Chinese had learned to graft（嫁接） different trees together to make new kinds of fruit．They passed this science on to others, including the Romans．The Romans used grafting to grow the apple．Trading along the Silk Road led to world-wide business 2,000 years before the World Wide Web．
The people along the Silk Road did not share just goods．They also shared their beliefs．The Silk Road provided pathways for learning, diplomacy（外交）, and religion （宗教）．
61．It’s probable that traders along the Silk Road needed ．
A．to remember the entire trade route     B．to know the making of products
C．to receive certain special training       D．to deal with a lot of difficulties
62．The Silk Road became less important because         ．
A．it was made up of different routes      B．silk trading became less popular
C．sea travel provided easier routes        D．people needed fewer foreign goods
63．What does the underlined part in Paragraph 3 refer to?
A．Silk．                            B．A trading network．
C．The world’s longest highway．      D．Goods．k.s.5.u
64．New technologies could travel along the Silk Road because people         ．
A．learned from one another             B．shared each other’s beliefs
C．traded goods along the route           D．earned their living by traveling
65．What is the best title for the passage?
A．The Silk Road: Past and Present       B．The Silk Road: East Meets West
C．The Silk Road: Routes Full of Dangers D．The Silk Road: Pathways for Learning

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