Since NASA’s Viking Task tested Martian soil back in the 1970s, we’ve known that Mars ( 火星 ) is covered with a desert—harmful to life as we know it. But since tasks to Mars paid attention to what lies under the desert, a different picture has started to appear.
This discovery of water under the Mars’ South Pole is the result of radar echoes ( 雷达回波 ) that were picked up by an instrument on a spaceship that’s been moving around Mars for 15 years. To stay liquid ( 液体 ) under the long-frozen desert of Mars, the researchers say this lake must have a lot of salts mixed in it.
It is very cold and saltiness would make it a very hard environment for any living thing. But the lead researcher, Professor Roberto Orosei from the Italian National Institute for Astrophysics, said it was not impossible for things to live there.
To search for life in this newly discovered lake, scientists will need to send a robot that’s able to make a hole through the mile of ice covering it. But at least the teams looking for life on Mars will now know where to start their search.
正确的写 “T”, 错误的写 “F” 。
1 . NASA’s Viking Task found water in the 1970s.
2 . The researchers believe there must be lots of salts in the underground lake.
3 . It’s possible that there are living things in the newly discovered lake.
4 . In order to find where water is, scientists must use a robot to make a hole through the mile of ice.
1 . F
2 . T
3 . T
4 . F
【分析】
文章介绍了人类对火星的探索,主要讲在火星上发现了液态水体。
1 .
细节理解题。根据 “Since NASA’s Viking Task tested Martian soil back in the 1970s, we’ve known that Mars is covered with a desert—harmful to life as we know it.” 可知 1970 年题干中美国宇航局的海盗任务测试了火星的土壤,而不是发现了水。陈述是错误的,故填 F 。
2 .
细节理解题。根据 “To stay liquid under the long-frozen desert of Mars, the researchers say this lake must have a lot of salts mixed in it.” 可知研究人员认为,地下湖泊中一定有大量的盐。题干中陈述是正确的,故填 T 。
3 .
细节理解题。根据 “But the lead researcher, Professor Roberto Orosei from the Italian National Institute for Astrophysics, said it was not impossible for things to live there.” 可知在这个新发现的湖里可能有生物。题干中陈述是正确的,故填 T 。
4 .
细节理解题。根据 “To search for life in this newly discovered lake, scientists will need to send a robot that’s able to make a hole through the mile of ice covering it.” 可知科学家们必须用机器人在长达一英里的冰层上挖一个洞,是为了在这个新发现的湖里寻找生命。题干中陈述是错误的,故填 F 。