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  3. The first sound ever was the sound of the Big Bang. And, surprisingly, it doesn’t really sound all that bang-like. John Cramer,

The first sound ever was the sound of the Big Bang. And, surprisingly, it doesn’t really sound all that bang-like. John Cramer,

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问题     The first sound ever was the sound of the Big Bang. And, surprisingly, it doesn’t really sound all that bang-like. John Cramer, a researcher at the University of Washington, has created two different renditions of what the big bang might have sounded like based on data from two different satellites.
    During the first 100 to 700 thousand years after the Big Bang, the universe was far denser than the air on Earth, which means that sound waves could indeed move through it. (It’s not true that sound needs air to move, it simply needs a medium dense enough to propagate the waves.)【B6】_______________
    Since before the Big Bang there was no universe, it seems safe to say that this is likely the first sound in the universe. But what was the first sound ever actually heard? To figure that out, we need to figure out which organism was first able to hear.
    The first organisms to be able to hear things were probably the bony fishes, which appeared on this planet about 400 million years ago.【B7】____________________
    So what were these fish hearing? What sounds did these early labyrinth organs pick up? Mostly vibrations coursed  through  their bodies  as  they  moved  through  the  water  or,  in  later cases,  as  they walked along muddy banks.【B8】_______________It wasn’t until the Triassic period that eardrums showed up, which made it much easier for organisms to hear sounds transmitted through the air.
    Fast forward a whole lot of time, and we get to humans.【B9】_______________Phonautographs transcribe sound waves into a line that is drawn on paper or glass. The first phonautographic recording that still exists is from 1860, and it’s a French folksong called "Au Clair de la Lune."
    Once humans figured out how to record sound, they then wanted to share it. In 1875, Alexander Graham Bell transmitted the first sound vibrations between two receivers. The first radio broadcast, speech transmitted without wires, came on December 23, 1900. Reginald Aubrey Fessenden successfully transmitted his own voice  between two  50-foot towers located  on the  Potomac  River in Washington.
    【B10】____________________
    Today, humans make and record a whole lot of noise. So much that now, instead of trying to be the "first" to make or capture or send a sound, some are looking for a "last." The last place on Earth without human noise.
    [A]   But the sound would have been such a low frequency that, had humans been around at the time, we couldn’t have heard it. For listening purposes, Cramer has increased the frequency of the sound to fall into the range that humans can actually detect.
    [B]  The first sound that we recorded as a species was gathered by a device called a phonautograph, invented by a man named Edouard-Leon Scott de Martinville in 1857.
    [C]   Sound has a history, from the first sound ever, to the first sound heard by an animal, to the first recorded by a human being.
    [D]  This system works well when there’s water around, but as animals moved up and out of the water, vibrations in the air didn’t carry as much energy, and couldn’t wiggle the bones quite as much.
    [E]  There weren’t always sounds being transmitted through the air, and there weren’t always animals and humans around to make sounds. And there certainly weren’t always technologies around to record sounds, in basements and fancy studios and subway cars.
    [F]  The first cellphone call was made on April 3, 1973 by Martin Cooper who, used the historic moment to call a man named Joel Engel, his direct competitor who was also working on cellphone technology.
    [G]   These fish developed the ability to sense vibrations by adapting an organ they used to balance themselves in the water called the "balance labyrinth." Eventually, that labyrinth got more and more complicated, developing curves and features that would, a long time later, develop into a proto-cochlea.
【B6】
选项
答案A
解析 第一段指出宇宙的第一个声音是大爆炸发出的。空格前说宇宙大爆炸发生之后100万至700万年间，宇宙的环境足以让声波传播。空格后是第三段，再次指出宇宙第一个声音是大爆炸发出的。空格前后都与大爆炸和声音等信息有关，空格处的内容应该也与此相关。A指出虽然大爆炸后的宇宙环境足以让声波传播，但是因为频率极低，人类即使在当时已经存在，也无法听到，与空格前的内容存在语义转折，用But过渡，符合上下文的逻辑。A中的the sound指代第一段提到的the sound of the Big Bang，而the time则指代第二段开头的the firs l，100 to 700 thousand years after the Big Bang。故本题选A。
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