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  3. The modern age is an age of electricity. People are so used to electric lights,

The modern age is an age of electricity. People are so used to electric lights,

游客2023-07-30  43
问题 The modern age is an age of electricity. People are so used to electric lights, radios, televisions, and telephones that it is hard to【B1】______what life would be like without them. When there is a power failure, people【B2】______about in faint candlelight, cars【B3】______in the streets because there are no traffic lights to guide them, and food【B4】______. in silent in refrigerators.
    Yet people began to understand how electricity works only a little more than two centuries ago. Nature has【B5】______been experimenting in this field for millions of years. Scientists are discovering more and more that the living world may hold many interesting【B6】______of electricity that could benefit【B7】______
    All living【B8】______send out tiny pulses of electricity.【B9】______The brain, too, sends out brain waves of electricity, which can be recorded in an electric device.【B10】______—often so small that sensitive instruments are needed to record them. But for some animals, certain muscled cells have become so specialized as electrical generators that they do not work as muscle cells at all.【B11】______. [br] 【B1】
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答案 imagine         
解析 前面提到现代社会是一个电的时代，然后说难以想像没有电的生活是怎样的，所以这个空格处应填入 imagine。
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