But the new discoveries show that Chinese silk was apparently present in the West long before the Han emperor started organized trade over the Silk Road.The research could change thinking about the early history of world trade and provide insights into the mystery of just how and when Europe and the Mediterranean lands first became aware of the glorious culture at the other end of Eurasia.

　　1．The word “coupled” in the first paragraph could best be replaced by ________.

　　A．produced

　　B．continued

　　C．doubled

　　D．combined

　　2．The silk thread found in the hair of an Egyptian mummy suggests that ________.

　　A．Egyptians had probably travelled to China to buy silk

　　B．trade along the Silk Road began earlier than once thought

　　C．historical research often achieves fascinating results

　　D．new light can now be thrown on ancient trading practices

　　3．Until recently most historians believed that trade along the Silk Road ________.

　　A．originated in the 2nd century BC

　　B．extended human migration into eastern Asia

　　C．began a million years ago

　　D．primarily benefited the Egyptians

　　4．Historians have always considered Zhang Qian's mission important because they believe ________.

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