[고2] 2025년 6월 모의고사 24번 - 지문 구성, 그림 설명, 원문 비교

[고2] 2025년 06월 – 24번: 주로 사용하는 손(좌우잡이)이 태어나기 전부터 결정된다는 연구 결과

 

Of central importance for understanding the development of handedness is the answer to the question of when in development it is actually determined whether a child will be left-handed or right-handed. It was long thought that handedness could only be reliably determined in elementary school, when a child learns to write. However, this assumption is incorrect. In fact, scientific studies show that left‐handedness is established in many children long before elementary school ─ interestingly, even before birth in most people. In such studies, the hand and arm movements of unborn children in the womb are recorded using ultrasound images. Using this technique, it was shown that a clear preference for the movement of the right arm exists as early as 10 weeks after fertilization. In this study, ultrasound images of 72 unborn children 10 weeks after fertilization were evaluated and 85% showed more movements of the right arm than the left. This number is already very close to the approximately 89.4% right-handers among adults.

 

 

구분	내용 설명	원문
문제 제기	손잡이가 언제 결정되는지를 밝히는 것이 핵심 과제이다.	Of central importance for understanding the development of handedness is the answer to the question of when in development it is actually determined whether a child will be left-handed or right-handed.
통념	예전에는 글쓰기를 배울 때에야 손잡이를 구별할 수 있다고 생각한다.	It was long thought that handedness could only be reliably determined in elementary school, when a child learns to write.
반박	최근 연구는 손잡이가 초등학교 이전, 심지어 태아 시기에 이미 형성된다고 밝힌다.	However, this assumption is incorrect. In fact, scientific studies show that left‐handedness is established in many children long before elementary school ─ interestingly, even before birth in most people.
증거	이 방법으로 수정 10주부터 오른팔을 더 움직인다는 사실을 확인한다.	In such studies, the hand and arm movements of unborn children in the womb are recorded using ultrasound images. Using this technique, it was shown that a clear preference for the movement of the right arm exists as early as 10 weeks after fertilization.
결과	72명의 태아 중 85%가 오른팔을 더 사용하며 이는 성인 오른손잡이 비율과 유사하다.	In this study, ultrasound images of 72 unborn children 10 weeks after fertilization were evaluated and 85% showed more movements of the right arm than the left. This number is already very close to the approximately 89.4% right-handers among adults.

 

 

 

* 원문 지문은 내용 동일해 생략함

 

 

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