51 A realize B suggest C hope D prove

【名词&注释】

太阳辐射(solar radiation)、中山站、生活史(life history)、降雪量(snowfall)、鼠尾草(sage)、花粉囊(pollen sac)

[填空题]51 A realize B suggest C hope D prove

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[单选题]与中山站相比，昆仑站所在的地点

A. 年降雪量较大 B．气压较高
B. 年太阳辐射较强
C. 年均风力较小

[单选题]25_______

A. if
B. though
C. because
D. while

[单选题]ENew archaeological discovers suggest that trade between Europe and Asia along the Silk Road probably began in some form. many countries earlier than once thought. The findings, coupled with a widening range of scientific and historical research could add a fascinating new page to the epic of the Silk Road.

A. The farest and most surprising discovery is pieces of silk found in the hair of and Egyptian mummy from about 1000 BC, long before regular traffic on the Silk Road and at least one thousand years before silk was previously thought to be used in Egypt. Other research may extend human activity along this route back even further, perhaps a million years to the migration of human ancestors into eastern Asia.
B. The official origin of East-West commerce along the road is usually placed in the late 2nd century BC which was the agent of the Chinese Emperor Wu-di returned from a dangerous secret mission（使命）across the desert into the remote high country of Central Asia. The agent, Zhang Qian, travelled as far as Afghanistan back knowledge of even more distant lands such as Persia, Syria and a place known as Lijion,. Histerents have called this one of the most important journeys in ancient times. His journey opened the way for what have been thought to be the first indirect contacts between the ancient world’s two superpowers, China and Rome. Chinese silk, first traded to central Asian tribes for war horses and to the Parthians of old Pet la lu exchange for acrobats and ostrich eggs, was soon finding its way through a network of merchants to the luxury markets in Rome.
C. 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.
D. 72. The word “coupled” in the first paragraph could best be replaced by .
E. produced
F. contributed
G. doubled
H. combined

[单选题]鼠尾草^(sage)花的杠杆雄蕊(杠杆系统)中的杠杆是( )的变态。

A. 花丝
B. 花药
C. 药隔
D. 花粉囊^{(pollen sac)}

[多选题]在紫菜生活史中，产生的孢子有( )。

A. 外生孢子
B. 单孢子
C. 壳孢子
D. 果孢子

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