题型：语法填空（语篇） 题类：常考题 难易度：困难
新人教版2020-2021学年高中英语必修第三册Unit 4 Section C同步习题
Located in a natural depression in Guizhou, China's Five-hundred-metre Aperture Spherical Radio Telescope, (know) as FAST, has identified six pulsars (脉冲星) after one year of trial operation. It is the first time Chinese scientists have discovered pulsars using a radio telescope independently developed by Chinese scientists, thus (open) a "new era of Chinese original space discovery".
It is truly encouraging for China to have achieved such results in just one year. Since the first pulsar (discover), over 2, 700 pulsars have been identified. But almost all of them are the scope of the Milky Way. Being the world's largest radio telescope, FAST is expected to capture pulsars outside the galaxy. Apart from the massive size, it also has unmatched accuracy and sensitivity, allowing scientists (find) previously hidden stars. Moreover, FAST is capable of surveying the night sky for multiple (science) data at once, enables astronomers to jump-start many science goals. Its innovative engineering concept and design pave new road to realize a huge single dish in the most effective way.
China's FAST science impact on astronomy will be extraordinary, and has the potential to revolutionize other (area) of the natural sciences. It (remain) the global leader for the next 10 to 20 years.
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