내용의 흐름상 적절하지 못한 문장을 고르시오Most of us who … | [9급 지방직 영어] 15년 1회차 기출문제 상세 페이지

내용의 흐름상 적절하지 못한 문장을 고르시오
Most of us who have ever cleaned a house would be much happier if there were less dust. ① However, without dust there would be less rainfall and sunsets would be less beautiful. Rain is formed when water molecules in the air collect around particles of dust. When the collected water becomes heavy enough, the water droplets fall to the earth as rain. ② This could decrease the amount of carbon dioxide in the atmosphere, alleviating the threat of global warming. Thus, water vapor could be much less likely to turn to rain without the dust particles. ③ The water vapor and dust particles also reflect the rays of the sun. At sunrise and sunset, when the sun is below the horizon, the dust and water vapor molecules reflect the longer, red wavelengths of light such that we can see them for more time than any of the other wavelengths. ④ The more dust particles in the air, the more colorful the sunrise or sunset.

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흐름상 어색한 문장은 "This could decrease the amount of carbon dioxide in the atmosphere, alleviating the threat of global warming."(이산화탄소를 줄여 지구온난화 위협을 완화할 수 있다)이다.
글은 먼지가 비의 형성과 노을의 색에 기여한다는 내용인데, 이산화탄소·지구온난화는 이 논지와 무관하다.
"without dust there would be less rainfall and sunsets would be less beautiful"은 글 전체의 주제를 제시한다.
"The water vapor and dust particles also reflect the rays of the sun."은 노을 설명으로 넘어가는 연결 문장이다.
"The more dust particles in the air, the more colorful the sunrise or sunset."은 노을 설명의 결론이다.