問題詳情:
NASA is moving ahead with plans to put a long-armed Lander on Mars’ icy North Pole to search for clues for water and possible signs of life.
The $386 million Phoenix Mars is planned to touch down in the Martian arctic in 2008. The stationary probe will use its robotic arm to dig into the icy land and pick up soil samples to analyze. In 2002, the Mars Odyssey orbiter spotted evidence of ice-rich soil near the arctic surface.
Scientists hope the <?xml:namespace prefix = st1 />
True to its name,
The Phoenix probe had been in storage at a Lockheed Martin clean room in
46. The passage mainly tells readers that _________.
A. clues of water will be found in
B.
C. August 2007 will see
D. the Mars Scout program will be carried out
47. The underlined word “prematurely” (paragraph 5) means _________.
A. on time B. behind the time C. out of work D. ahead of time
48. According to the passage, we know
A. in May 2008 B. in August 2007
C. in August 2008 D. in September 2008
49. According to the passage, the name “
A. rebirth B. death C. energy D. hope
50. After
A. find soil samples and send them to the earth B. look for the icy land to dig for the soil samples
C. take photos and send them to the earth D. find the remains of the Mars Polar Lander
【回答】
本文主要是講美國國家航空和航天管理局計劃2008年將Phoenix送到火星探索水源的線索和存在生命的可能*。
46. B 主旨大意題。由第一段可知。
47. D 猜測詞義題。由該詞所處語境和常識可知,是火箭引擎“提前”關閉,才會失去聯繫。
48. A 細節理解題。由最後一段的最後一句可推算出。
49. A 推理判斷題。由第五段第一句推知。
50. B 推理判斷題。由第二段第二句可知。
知識點:科普環保類閲讀
題型:未分類