题目

【A】Finally, we arrived in Loulan after several days of travelling. This (71) c            city was busy and (72) w            about 2,000 years ago. It was a stopping point on the famous Silk Road between the East and the West. It is (73) b            to have been gradually covered over by sandstorms from AD 200 to AD 400. I am so excited to be here! 【B】These are some of the Olympic athletes who have brought (74) j            to people across the world with their attempts to push the (75) b            of human achievement. We are looking forward to seeing more of them in future Olympic Games. Join me in wishing the Olympic Movement a successful future to (76) m            its past glory. 【C】Besides this, VR can be used to practise skills in a secure environment that (77) o            would be quite dangerous. For example, firefighters could use RealCine to train safely, without the risk of getting (78) i            in a burning building. It could be used in class as well. Teachers could bring history (79) a            by placing students in an ancient town, or they could teach biology by (80) a            students to experience the world as a whale or a squirrel. 答案：71. commercial      72. wealthy            73. believed           74. joy                  75. boundaries        76. match                     77. otherwise         78. injured             79. alive                80. allowing

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