注意:此部分试题请在答题卡2上作答。
Contrary to the old warning that time waits for no one, time slows down when you are on the move. It also slows down more as you move faster, which means astronauts (宇航员) someday may (36) _____ so long in space that they would return to an Earth of the (37) _____ future. If you could move at the speed of light, your time would stand still. If you could move faster than light, your time would move (38) _____.
Although no form of matter yet (39) _____ moves as fast as or faster than light, (40) _____ experiments have already confirmed that accelerated (41) _____ causes a travelers time to be stretched. Albert Einstein (42) _____ this in 1905, when he (43) _____ the concept of relative time as part of his Special Theory of Relativity. A search is now under way to confirm the suspected existence of particles of matter (44) ____________________________________.
An obsession (沉迷) with time saving, gaining, wasting, losing, and mastering it (45) ____________________________________. Humanity also has been obsessed with trying to capture the meaning of time. Einstein (46) ____________________________________. Thus, time and times relativity are measurable by any hourglass, alarm clock, or an atomic clock that can measure a billionth of a second.
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