글의 요지: Kramer conducted important research related to the ability of birds to orient and navigate.
저는 아래 지문에 대한 질문 2개를 틀렸어요 ㅜㅜ
In experimenting artificial suns, Kramer made another interesting discovery. If the artificial sun remained stationary, the birds would shift their direction with respect to it a rate of about 15 degrees per hour, the Sun's rate of movement across the sky. Apparently, the birds were assuming that the "Sun" they saw was moving at that rate. When the real Sun was visible, however, the birds maintained a constant direction as it moved across the sky. In other words, they were able to compensate for the Sun's movement. This meant that some sort of biological clock was operating- and a very precise clock at that.
이 지문을 읽고, 제가 이해한 바는
Kramer가 실험한 결과
1. 가짜 태양으로 실험했을 때 새는 태양의 위치에 상관없이 1시간에 15도씩 움직였다.
2. 진짜 태양으로 실험했을 때 새는 하늘에 떠있는 태양과 동일한 방향으로 움직였다.
1. According to the passage, how did the birds fly when the real Sun was visible?
a. They kept the direction of their flight constant.
b. They changed the direction of their flight at a rate of 15 degrees per hour.
c. They kept flying toward the Sun.
d. They flew in the same direction as the birds that were seeing the artificial Sun.
정답은 A
그런데 저는 C를 했어요. 진짜 태양의 위치에 맞추어, 태양을 향해 움직였다도 말이 되지 않나요...
(정답의 근거 the birds maintained a constant direction as it moved across the sky.)
2. The experiment described in the paragraph caused Kramer to conclude that birds possess a biological clock because
a. when birds navigate they are able to compensate for the changing position of the Sun in the sky
b. birds' innate bearings keep them oriented in a direction that is within 15 degrees of the Sun's direction
c. birds migration is triggered by natural environment cues, such as the position of the Sun
d. birds shift their direction at a rate of 15 degrees per hour whether the Sun is visible or not
이것도 정답은 A
그런데 저는 D를 했어요. 가짜 태양으로 실험했을 때, 1시간에 15도씩 움직였다는 말은 다시말하면 진짜 태양이 한시간에 15도씩 움직인다는 결론을 내릴 수 있지 않나요.? (본문 a rate of about 15 degrees per hour, the Sun's rate of movement across the sky.)
리딩고수님들 답변 부탁드려요!!