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Waters may be flowing on the surface of an enormous planet that lies about 120
light-years from Earth,according to new evidence 1.
(uncover)by the
James Webb Space Telescope.
The investigation with the space-based observatory,one of the 2.
(advanced)astronomy instruments in operation,revealed that the
exoplanet K2-18b may have some key features of a planet 3.
could
support bodies of water -and life.
Closely orbiting the cool dwarf star K2-18,the exoplanet lies within the star's
habitable,or Goldilocks,zone and is 8.6 4.(time)as massive as Earth.
An 5.(analyse)of Webb's observations found the planet has huge
quantities of methane()and carbon dioxide in its atmosphere.
The Webb telescope,which can detect infrared()light invisible to the
human eye,searched for 6.
(exact)what elements are featured in the
planet's atmosphere.
And 7.
latest observations of the planet also hint that a very special
substance,called dimethyl sulfide,could be 8.(presence)on K2-18b.
On Earth,dimethyl sulfide "is only produced by life,according to NASA.
Researchers are not outright suggesting that K2-18b is crawling with alien life.
Further research is needed 9.
(confirm)the presence of dimethyl sulfide.
And even if scientists confirm the chemical compound's presence,that doesn'
t guarantee life-forms exist there.
But this new evidence does expand scientists'understanding of exoplanets
similar
10.
K2-18b.
答案:
1.uncovered 2.most advanced 3.which/that4.times5.analysis 6.exactly7.the 8.
present9.to confirm 10.to
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Holding a "zero-tolerance (stance on crimes 1.children,Beijing
prosecutors (have attached greater importance to dealing with cases in
2._perpetrators(犯罪分子)take advantage of the internet to lead juveniles
to commit crimes or even sexually abuse them,a report said.
Last year,449 adults were prosecuted in the capital on suspicion of harming
children's legitimate rights,of whom 295 3.(charge)with sex crimes
against minors,according to the report 4.(issue)by Beijing People's
Procur