题目内容
3.A scientist responsible for finding signs of life on other planets has warned that human beings should probably think twice before making contact with aliens(外星人).Professor Matthew Bailes is based at Swinburne University and is leading Australia's efforts to find signs of extra-terrestrial (外星的)life.But he warned that making contact with aliens capable of transmitting powerful signals to earth over tens of thousands of light years could lead humans into disaster,because they're likely to be so much advanced."The history of weak civilizations contacting more advanced civilizations is not a happy one!"he said.
Prof Bailes was recently put in charge of the Breakthrough Prize Foundation's﹩100m to search for alien life,which is being financed by Russian billionaire Yuri Milner and is backed by Professor Stephen Hawking.The team working on the project will use the Parkes radio telescope,one of the largest in the world,to scan the universe.
Prof Bailes told the news media that accurate computers would have to be installed at Parkes to sort through as many as a billion samples a second to try to detect patterns or likely signals."There is no manual(指南) on how to find aliens.We'll have to imagine the sort of transmissions an alien race might send."
The computers,he warned,would take a year to build,and the project has five years to run.But he said that the signal,if and when it arrives,would likely be quite weak after travelling across such vast distances.He said that scientists hope that aliens will send a pattern human beings would be able to recognize,such as prime numbers.But he warned that we might all be"long dead and buried"before we could work out how to reply and the aliens could get an answer.
32.What did the scientist warn humans?B
A.Don't send any signal to the aliens.
B.Don't contact with aliens casually.
C.Don't reply to any signal the aliens sent.
D.Don't receive the powerful signals from aliens.
33.What can we learn from Paragraph 2?D
A.The history of weak civilizations should never be forgotten.
B.The aliens are more intelligent than humans.
C.Human civilization needs to be developed urgently.
D.The aliens'civilizations may be more advanced than humans'.
34.What can we infer about the equipments at Parkes?C
A.They have scanned the universe for years.
B.They are the best equipments in the world.
C.They haven't been installed then.
D.They are capable of detecting the exact target signals.
35.Bailes'attitude of communicating with the aliens isD.
A.encouraging B.indifferent C.hopeful D.negative.
分析 短文主要讲了科学家提醒人类跟外星人联系要三思.
解答 32.B,推理判断题,根据文章第一句A scientist responsible for finding signs of life on other planets has warned that human beings should probably think twice before making contact with aliens可知,科学家提醒人们在跟外星人联系前要三思,可以推测不要未经考虑就跟外星人联系,故答案为B.
33.D,推理判断题,根据句子The history of weak civilizations contacting more advanced civilizations is not a happy one!可以推测,外星人的文明社会可能比人类的文明社会更先进,故答案为D.
34.C,推理判断题,根据句子accurate computers would have to be installed at Parkes 可知,精确的计算机将不得不安装在Parkes,也就是说那时还没有安装精确的计算机,故答案为C.
35.D,主旨大意题,短文主要讲了科学家提醒人类跟外星人联系要三思,并说明了有可能与外星人的接触会造成灾难,因此可推测Bailes对于跟外星人联系的态度是否定的,故答案为D.
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