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次の英文を読んで、以下の問いに答えなさい。
If you can read a clock, you can know the time of day. But (n)(knows/time itself /
what is / no one / .) We cannot see it. We cannot touch it. We cannot hear it. We
Ense
tiniest parts of time, time remains one of the great mysteries of the universe.
know it only by the way we mark its passing. (2)For all our success in measuring the
測定
One way of thinking about time is to imagine a World without time. There could be
no movement, because time and movement cannot (3)(separate). A world without time
could exist only (4)as long as there were no changes. (5)For time and change are linked.
When something changes, you know time has passed. In the real world, changes never
stop. Some changes happen only once in a while, like an eclipse of the moon. (A)
日
happen repeatedly, like the rising and setting of the Sun. People have always noted
natural events that repeat themselves. When people began to count some events, they
began to measure time.
彼ら自身
In early human history, the only changes that seemed (6)(repeat) themselves evenly
were the movements of objects in the sky. The most easily seen result of these
movements was the difference (B) light and darkness.
The sun rose in the eastern sky, producing (C). It moved overhead and sank in the