笔译二级综合能力（完形填空）模拟试卷18
填空完型
Since its discovery by astronomers in 2015, the exoplanet K2-18b has【C1】________much excitement. Swirling around a red-dwarf star about 110 light-years away from Earth, the distant world sits in a so-called Goldilocks zone—not close enough to its host star to be too hot and not far enough away to be too cold—that could allow liquid water to flow across its surface. And liquid water is a【C2】________condition for any sort of remotely Earthlike life.
Now astronomers have cranked up the speculation. Follow-up【C3】________taken by the Hubble Space Telescope suggest K2-18b (artist\’s impression below) has an atmosphere containing large amounts of water vapour—the first exoplanet in a【C4】________zone to have this confirmed. Most exoplanets previously found with【C5】________have been gas giants, similar to Neptune or Jupiter. K2-18b【C6】________looks like it could be a rocky planet with between two and three times the diameter of Earth, perhaps covered in vast ice-covered seas.
To make the discovery of atmospheric water, Angelos Tsiaras, an astronomer at University College London, and his colleagues looked at how light filtered【C7】________the atmosphere of K2-18b as it passed in front of its star between 2015 and 2017. This spectroscopic technique is a common way to analyse the atmospheric【C8】________of exoplanets, based on which wavelengths of light make it through and which are【C9】________. But it is difficult—especially for the relatively small and cold rocky worlds that could hold the【C10】________for life.
Writing this week in Nature Astronomy, Dr. Tsiaras describes how his team wrote software that could analyse the data collected by Hubble to try to do the same job—up to a point. They were not able to【C11】________the exact form and amounts of the water they found. Instead they used computer models to【C12】________the most likely scenarios, and concluded that as much as half of the atmosphere of K2-18b could be water vapour. They also found【C13】________of large amounts of hydrogen and helium gas.
This is just the start of such study of planets【C14】________our solar system. Astronomers plan to【C15】________two new orbiting telescopes in the next decade—the American James Webb Space Telescope and the European ariel survey—that will be powerful enough to【C16】________into the atmospheres of exoplanets more closely. Powerful enough, perhaps, to【C17】________telltale molecular signatures of life.
With Dr. Tsiaras\’s analysis, K2-18b is now the best【C18】________for a life-supporting exoplanet out there. The temperature on the surface could be about the same as Earth and there could be similar clouds hanging in the sky. However, the planet\’s【C19】________to the star—it whizzes around once every 33 days—could produce intense space weather from the stellar activity. And it would be advisable to pack sun cream: the ultraviolet radiation would be【C20】________.
1.【C1】(C)
A. solaced
B. educed
C. elicited
D. solicited
解析：elicited引起。本题考查的是词义辨析。选项A．solaced安抚；选项B．educed推断、演绎；选项D．solicited征集。
2.【C2】(A)
A. crucial
B. critical
C. definitive
D. dominative
解析：crucial重要的、决定性的。本题考查的是近义词辨析。对任何类地星球上的生物来说，水都是重要的条件。选项B．critical评论的、爱挑剔的、关键的，比如critical condition危急时刻；选项C．definitive最后的、最佳的，比如definitive answer最佳答案；选项D．dominative统治的、支配的
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