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托福听力背景材料之鱼的”第六感”

信息来源:运维  发布时间:2015-03-10

  大家都知道人有第六感觉,鱼也有第六感觉吗?下面前程百利小编为大家整理的关于鱼的“第六感觉“的托福听力材料中,为大家揭晓答案:
 

  A lot of fishermen will tell you that fish have kind of a sixth sense. They avoid obstacles, effortlessly slalom between vortices or whirlpools, and hide from predators—even when they can’t see. But how do they do it?
 

  许多渔夫告诉你鱼是有第六感觉的。即使它们看不见,它们也可以躲开障碍物,毫不费力的在漩涡之间穿梭,也可以躲避猎物的追赶。但是它们是怎样做到的呢?
 

  Researchers from the University of Florida and New York University think they’ve found the answer. Nearly all fish, they say, have a similar network of sensors along their bodies that are exquisitely sensitive to changes in water pressure. The report is in the journal Physical Review Letters.
 

  来自弗罗里达大学和纽约大学的研究者认为它们已经找到答案了。他们说几乎所有的鱼都有一个相似的网络状的神经末梢遍布全身,以至于它们可以对水中的压力做出改变。这项研究发表在《物理评论快报》。
 

  For the study, the researchers made a plastic rainbow trout with an accurate configuration of flow sensors on its body. Known as the “lateral line,” these sensors apparently act like a hydrodynamic antenna, picking up signals about the flow of water around them.
 

  对于这项研究,研究者制造了一个在身体内带有流动传感器的塑料鱼。把这个流动的传感器当做鱼保持平衡的恒“向线“。很明显这些传感器像水力的天线一样搜集关于周围水流的信号。
 

  They put the fake fish in water, and simulated important real-life situations—for example, a bigger fish swimming nearby that might want to turn the trout into sushi. The researchers noted that the natural setup of the fish’s sensors includes a higher density of them on the parts of the body subject to the greatest pressure changes. So the sensory awareness of its environment is highly resolved—showing that the notion that fish have a sixth sense isn’t fishy at all.
 

  他们把这条假鱼放到水里,模拟真实的环境,把比较大的鱼跟假鱼放一块。研究者指出自然状态下鱼的传感器在身体内部含有的更多,使它们适应巨大的压力变化。所以他们对环境的感官触觉已经被很好的解决了,也就是如果鱼有第六感觉他们就不是鱼了。
 

  以上就是本期前程百利小编为大家整理的关于鱼是否有第六感觉的文章,希望大家可以了解更多托福听力的背景材料,并在托福考试中取得好成绩。
 

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