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The five-hundred-meter Aperture Spherical Telescope (FAST) - the only significant instrument of its kind after the fall of the American Arecibo telescope in Puerto Rico in December,2020 - officially opened its door for foreign astronomers to use on March 31st this year,hoping to attract the world's top scientific talents.The world's largest radio telescope signals China's ambition as a global center for scientific research.
   The FAST in Pingtang,Guizhou Province,travels twice as fast as the US-owned one,and up to three times more sensitive.The FAST is also superior to Arecibo for it can deform and rotate (變形和轉(zhuǎn)動).Work on the FAST began in 2011 and started full operations in January,2020.The data being collected by FAST should allow for a better understanding of the origins of the universe and aid in searching for alien life.
   China has been rapidly strengthening its development of science and technology to rely less on foreign technology.In the past two decades,China has built the largest high-speed train network in the world,finalised its Beidou geolocation (地理位置定位)system and is now in the process of bringing lunar samples back to Earth.
   Denis Simon,an expert on Chinese science policy,said,"China was viewed to be slow in innovation only a few years ago.Improvements in scientific innovation have been rapid recently.With more and more freedom given to the scientific and engineering community to explore new ideas and take bigger risks in the research environment,the risk-off culture in the past has given way to a more enterprise-starting culture."

(1)What can be learned about FAST?
A
A

A.It is ready to greet international scientists.
B.It has been running for two decades.
C.It is the only telescope to study outer space.
D.It keeps our contact with aliens.
(2)How does the writer highlight the advantages of FAST?
D
D

A.By example.
B.By explanation
C.By analysis.
D.By comparison.
(3)What is Paragraph 3 mainly about?
B
B

A.China's dependence on foreign technology.
B.Some achievements of China in science and technology.
C.The joint efforts of scientists at home and abroad.
D.The significant role of FAST.
(4)What is the key to the scientific innovations according to the text?
C
C

A.The urgent call for policy flexibility.
B.The traditional culture of avoiding risks.
C.The less limitation on exploration.
D.The strong desire to develop technology.

【考點】國家地理說明文
【答案】A;D;B;C
【解答】
【點評】
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發(fā)布:2024/5/27 14:0:0組卷:1引用:1難度:0.5
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