Unit 7 【单元测试 · 提升卷】 一、完形填空(共10小题；每小题1分，满分 10分) It is interesting how NASA (National Aeronautics and Space Administration) chose their astronauts for landing them on the moon. They chose men between the ages of 20 and 35. Altogether there were 50 of them. Many were 1 pilots. Others were scientists with two or more 2 . NASA telephoned each man they were going to choose, told him about the plans and the 3 they might get in. Then they asked him whether he was 4 to be trained as an astronaut. “How could any man 5 such an extremely exciting job ” One of them said. “Dangerous Of course. It is dangerous, but most exciting.” The health and physical condition of the pilots was terribly 6 , of course. 7 those in good health and physical condition would be chosen in the end. While being trained to be astronauts, they went through many courses. They 8 the stars and the moon, and they also studied geology, the science of rocks. This was necessary 9 astronauts would have to look for rocks on the moon. They would try to find rocks which might help tell the 10 of the moon. 1．A．experienced B．old C．excited D．unknown 2．A．marks B．degrees C．difficulties D．choices 3．A．dangers B．sadness C．hardship D．exploration 4．A．satisfied B．scary C．willing D．peaceful 5．A．accept B．receive C．refuse D．reach 6．A．popular B．important C．responsible D．certain 7．A．All B．Only C．If D．Neither 8．A．watched B．looked at C．studied D．recommend 9．A．since B．because C．so D．why 10．A．age B．story C．background D．technology 阅读理解（每空1.5分，共22.5分） A A computer program that could help catch and even translate messages from aliens in outer space has been started by a British scientist. If aliens are discovered one day, scientists fear their language may make it impossible to understand them. But John Elliott of Leeds Metropolitan University in Britain has come up with a program that can figure out the structure of their language. He thinks that’s the first step in understanding what they are saying. Dr. Elliott’s program would compare an alien language to a database of 60 different languages in the world to look for a similar structure. He believes that even an alien language will have its own structure. Language has to be structured in a certain way, or it will be harder to use, he told New Scientist magazine. Research has shown that it is possible to know if a signal carries a language rather than a picture or music. Dr. Elliott has gone a step further by finding a way to pick out what might be words and sentences. Because languages have different word orders, Dr. Elliott has set up a library of the sentence structures of 60 human languages. If a message is received from outer space, it could be compared against this database. Scientist would then be able to see if it’s similar to any human language, or a mix of the languages. However, Dr. Elliott also said that in order to translate what the aliens are actually sayin ... ...
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