must의 추론 vs may의 추측 · 차이와 구분

01 · 이해하기

핵심 기준으로 비교해요.

비교표 근거: 출처: 인사혁신처, 2026 9급 공개경쟁채용시험 영어 가책형 20번 (새 탭) ↗ 출처: 인사혁신처, 2023 9급 공개경쟁채용시험 영어 나책형 20번 (새 탭) ↗ 출처: 인사혁신처, 2025 9급 공개경쟁채용시험 영어 나책형 20번 (새 탭) ↗ 출처: 인사혁신처, 2025 9급 공개경쟁채용시험 영어 나책형 3번 (새 탭) ↗ 출처: 인사혁신처, 2021 9급 공개경쟁채용시험 영어 나책형 7번 (새 탭) ↗ 출처: 인사혁신처, 2026 9급 공개경쟁채용시험 영어 가책형 16번 (새 탭) ↗

03 · 실제 출제 확인

기출 지문과 표현에서 확인해요.

관련 기출 6문항을 연결했어요. 지문·표현의 용례를 통해 개념을 확인하세요. 모든 문항이 이 개념만을 직접 묻는다는 뜻은 아닙니다.

원래 기출의 지문·발문·선지에서 관련 표현을 발췌했습니다. 출제 맥락과 정답은 회차 페이지에서 함께 확인하세요.

1. 출처: 인사혁신처, 2026 9급 공개경쟁채용시험 영어 가책형 20번 지문 용례

   밑줄 친 부분에 들어갈 말로 가장 적절한 것을 고르시오.

   e increase our speed on most tasks, we generally lose accuracy; to increase precision, we must slow down. If a successful business expands, it is likely to suffer a decline in the informality and access to the boss that may have been a large part of its initial success. Human beings are blessed with unsurpassed intelligence, but biologists tell us that getting the large brains responsible for that in

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2. 출처: 인사혁신처, 2023 9급 공개경쟁채용시험 영어 나책형 20번 지문 용례

   밑줄 친 부분에 들어갈 말로 알맞은 것은?

   rate parts (for example, neuroscience, developmental, cognitive, personality, and social) must become whole and integrated again. Science advances when distinct topics become theoretically and empirically integrated under simplifying theoretical frameworks. Psychology of science will encourage collaboration among psychologists from various sub-areas, helping the field achieve coherence rather than continued fragmentation. In this way, psychology of science might act as a template for psychology as a whole by integrating under one discipline all of the major fractions/factions within the field. It would be no small feat and of no small imp

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3. 출처: 인사혁신처, 2025 9급 공개경쟁채용시험 영어 나책형 20번 선지 4

   밑줄 친 부분에 들어갈 말로 가장 적절한 것을 고르시오.

   The holiday season is a time to give thanks, reflect on the past year, and spend time with family and friends. However, if you’re not careful, it can also be a time you overspend on holiday purchases. People have an innate impulse to overspend, experts say. They are “wired” to be consumers. The short-term gratification of giving gifts to loved ones can eclipse the long-term focus that’s needed to be good with money. That’s where many people fall short. We can overspend because our long-term goals are much more abstract, and it actually requires us to do extra levels of cognitive processing to delay instant gratification. Additionally, consumers may feel ______________________________ because they don’t want to appear “cheap.” Many companies also promote deals during the holidays that can encourage people to spend more than usual.

   the social pressure to spend more than they might like

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4. 출처: 인사혁신처, 2025 9급 공개경쟁채용시험 영어 나책형 3번 선지 1

   밑줄 친 부분에 들어갈 말로 가장 적절한 것을 고르시오.

   Whitworths, a retailer offering online grocery shopping, says it has discovered that some staff members who are paid a salary _____________ paid enough in recent years.

   may not have been

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5. 출처: 인사혁신처, 2021 9급 공개경쟁채용시험 영어 나책형 7번 선지 3

   다음 글의 제목으로 가장 적절한 것은?

   Warming temperatures and loss of oxygen in the sea will shrink hundreds of fish species―from tunas and groupers to salmon, thresher sharks, haddock and cod―even more than previously thought, a new study concludes. Because warmer seas speed up their metabolisms, fish, squid and other water-breathing creatures will need to draw more oxygen from the ocean. At the same time, warming seas are already reducing the availability of oxygen in many parts of the sea. A pair of University of British Columbia scientists argue that since the bodies of fish grow faster than their gills, these animals eventually will reach a point where they can’t get enough oxygen to sustain normal growth. “What we found was that the body size of fish decreases by 20 to 30 percent for every 1 degree Celsius increase in water temperature,” says author William Cheung.

   Climate Change May Shrink the World’s Fish

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6. 출처: 인사혁신처, 2026 9급 공개경쟁채용시험 영어 가책형 16번 지문 용례

   주어진 문장이 들어갈 위치로 가장 적절한 것은?

   But by getting aggressive, they might not only damage their relationships but also miss the chance of growing through constructive feedback. Conflict management can be challenging. When conflict arises, we can often s

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