우리는 밤하늘에서 별과 달을 봅니다. 이곳을 ( )이라고 부릅니다.
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정답: B. 우주
How to solve: The stem describes the night sky with stars and the moon. The Korean word for the place where stars and the moon exist, 'space', is '우주'. Therefore, '우주' is the correct word to fill in the blank.
Choice analysis (EN):
A — '바다' means 'sea'. The sea is on Earth, not where stars and the moon are.
B — '우주' means 'space' or 'universe'. This is the correct term for the place containing stars and the moon.
C — '땅' means 'land' or 'ground'. This is the surface of the Earth.
D — '강' means 'river'. A river is a body of water on land.
나사(NASA)는 새로운 혜성을 ( ).
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정답: C. 발견했습니다
How to solve: The subject is NASA, a space agency, and the object is 'a new comet'. The most logical action NASA would perform on a new comet is to discover it. The Korean word for 'discovered' is '발견했습니다'.
Choice analysis (EN):
A — '먹었습니다' means 'ate'. People or organizations do not eat comets.
B — '읽었습니다' means 'read'. A comet cannot be read like a book.
C — '발견했습니다' means 'discovered'. It is the appropriate verb for finding something new like a comet.
D — '만들었습니다' means 'made'. NASA explores space; it does not create comets.
우리는 망원경으로 멀리 있는 별을 ( ).
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정답: C. 봅니다
How to solve: The sentence mentions using a '망원경' (telescope) to look at a distant '별' (star). A telescope is a tool for seeing or observing things. The Korean verb for 'to see' or 'to watch' is '봅니다'.
Choice analysis (EN):
A — '줍니다' means 'give'. You cannot give a star with a telescope.
B — '삽니다' means 'buy'. You cannot buy a star with a telescope.
C — '봅니다' means 'see' or 'watch'. This is the correct action performed with a telescope.
D — '잡니다' means 'sleep'. A telescope is not used for sleeping.
혜성은 우리 지구에서 아주 ( ) 있습니다.
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정답: A. 멀리
How to solve: The stem describes the position of a comet relative to Earth. Comets are known to be very distant from Earth. The adverb that means 'far' is '멀리'.
Choice analysis (EN):
A — '멀리' means 'far'. This correctly describes the distance between a comet and Earth.
B — '빨리' means 'fast'. While comets move fast, the context here is about location ('있습니다' – is located), not speed.
C — '같이' means 'together'. A comet is not located together with Earth.
D — '많이' means 'a lot' or 'many'. This adverb does not fit the context of describing a location.
이것은 우리가 처음 보는 ( ) 혜성입니다.
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정답: C. 새
How to solve: The phrase '처음 보는' means 'seeing for the first time'. This implies that the comet is new to the observer. The Korean adjective for 'new' is '새'.
Choice analysis (EN):
A — '헌' means 'old' or 'used', usually for things like clothes or books. It is the opposite of new.
B — '낡은' means 'old' or 'worn out'. This is not suitable for describing a newly seen comet.
C — '새' means 'new'. This word perfectly fits the context of seeing something for the first time.
D — '비싼' means 'expensive'. A comet does not have a price.
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