2. 自考
  3. The Meaning of Time Contrary to the old【C1】______(warn)that time waits for no one, time slows down when you are on the move.

The Meaning of Time Contrary to the old【C1】______(warn)that time waits for no one, time slows down when you are on the move.

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问题                         The Meaning of Time
    Contrary to the old【C1】______(warn)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 some day may survive so long in space that they would return to an earth of the【C2】______(distance)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 backward.
    Although no form of matter yet【C3】______(discover), moves as fast or faster than light, 【C4】______ (science)experiments has already confirmed that accelerated motion causes a traveler’ s time to be【C5】______(stretch). Albert Einstein predicted this in 1905, when he introduced the concept of relative times as part of his special theory of【C6】______(relative). A search is now under way to confirm the suspected【C7】______(exist)of particles of matter that move at a speed greater than light, and therefore, might serve as our passports to the past. An obsession with time-saving and【C8】______(master)it seems to have been a part of humanity for as long as human have existed.
    Humanity also has been obsessed with trying to capture the meaning of time. Einstein used a definition of time for experimental purposes, as that which is【C9】______(measure)by a clock. Thus time and time’ s relativity are【C10】______(measure)by any hour glass, alarm clock, or atomic clock that can measure a billionth of a second.
【C4】
选项
答案scientific
解析 本句空白处放在名词experiments前面，提示需要填入形容词来修饰experiments，因此把提示词名词science改为scientific填入空白处即可，填入后意为“科学实验已经证明”。
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