第二节（共10小题；每小题1.5分，满分15分）
阅读下面短文，在空白处填入适当的单词或括号内单词的正确形式。
The 500-meter Aperture Spherical Radio Telescope（FAST）, also known as China's Tianyan or "Sky Eye", has ____41____（official）opened to global scientists since April, 2021.
As we know, radio telescopes____42____（design）to "listen" or "receive" signals emitted from the universe. With specialized antennas（天线）and radio receivers, these telescopes can detect radio waves from stars, galaxies and black holes. The data collected in turn help scientists____43____（good）explore the universe. It will also be used occasionally to search for alien life.
The giant radio telescope will also help find more pulsars（脉冲星）, which send out steady signals and waves in a regular rhythm. Scientists use pulsars____44____（study）the extreme states of matter, measure cosmic（宇宙的）distances and track time in an ultra-precise（超精密）way. So far, it____45____（discover）more than 240 pulsars.
____46____（locate）in southwest China' s Guizhou Province,____47____largest single-dish radio telescope of the world was completed in 2016. It was put to use____48____January 11, 2020. FAST is now the only "Sky Eye"____49____humans can use to observe cosmic waves. It has immense potential to detect fast radio bursts and gravitational waves, ____50____（provide）data support for research into the physical process of the Big Bang, according to experts at the NAO.
【答案】41. officially
42. are designed
43. better 44. to study
45. has discovered
46. Located
47. the 48. on
49. that 50. providing
阅读下面短文，在空白处填入适当的单词或括号内单词的正确形式。
The 500-meter Aperture Spherical Radio Telescope（FAST）, also known as China's Tianyan or "Sky Eye", has ____41____（official）opened to global scientists since April, 2021.
As we know, radio telescopes____42____（design）to "listen" or "receive" signals emitted from the universe. With specialized antennas（天线）and radio receivers, these telescopes can detect radio waves from stars, galaxies and black holes. The data collected in turn help scientists____43____（good）explore the universe. It will also be used occasionally to search for alien life.
The giant radio telescope will also help find more pulsars（脉冲星）, which send out steady signals and waves in a regular rhythm. Scientists use pulsars____44____（study）the extreme states of matter, measure cosmic（宇宙的）distances and track time in an ultra-precise（超精密）way. So far, it____45____（discover）more than 240 pulsars.
____46____（locate）in southwest China' s Guizhou Province,____47____largest single-dish radio telescope of the world was completed in 2016. It was put to use____48____January 11, 2020. FAST is now the only "Sky Eye"____49____humans can use to observe cosmic waves. It has immense potential to detect fast radio bursts and gravitational waves, ____50____（provide）data support for research into the physical process of the Big Bang, according to experts at the NAO.
【答案】41. officially
42. are designed
43. better 44. to study
45. has discovered
46. Located
47. the 48. on
49. that 50. providing
