A Cosmic Directory - Test 3
C2 Proficiency · Multiple Choice Cloze · Cambridge English Proficiency 2, Cambridge University Press
For questions 1–8, read the text below and decide which answer (A, B, C or D) best fits each gap.
shield
protect
harbour
safeguard
eyes
logs
tabs
check
principles
criteria
concepts
scales
uphold
maintain
preserve
sustain
lurk
loiter
hide
hover
potentially
plausibly
predictably
prospectively
levels
notes
totals
scores
situation
destination
location
orientation
Scientists at Puerto Rico University in Arecibo have recently (0) ___ a cosmic directory that lists the planets and moons most likely to (1) ___ alien life. They created the catalogue to make sense of the ever-increasing number of distant worlds that are visible with modern telescopes. They believe it will help astronomers, and others with an interest, to compare faraway worlds and keep (2) ___ on the most habitable ones as researchers discover them. The catalogue ranks the habitability of planets and moons according to three (3) ___ : their surface temperature, their similarity to Earth and their capacity to (4) ___ organisms that (5) ___ at the bottom of the food chain. It suggests that among hundreds of candidates, only a few planets are (6) ___ habitable, and gives high (7) ___ for habitability to even fewer. The database also holds information on the (8) ___ of the planets, their probable mass and the type and age of the stars they orbit.
A Cosmic Directory
despatched
launched
commenced
embarked
Available as a free printable PDF worksheet with an optional answer key.
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