Have You Ever Wondered...
Can you really hear the ocean in a shell?What type of shell is best for 'hearing the ocean'?Can you hear the'ocean' in any other objects?Have you ever visited the ocean? Maybe you live along a coastline where you get to see the ocean all the time. For most others, though, seeing the ocean means taking a trip—sometimes a long one!—to visit the ocean.你去看过大海吗？也许你家住在海岸线上，在那里你可以随时看到海洋。然而，对大多数人来说，看海意味着一次旅行—有时这会是一场长途看海之旅！If you’ve ever walked along a seashore, you’ve probably searched for seashells. They’re not always easy to find, though.如果你曾经在海边散步，你很可能会寻找贝壳。不过，它们并不是那么容易找到的。One thing most children do upon first picking up a large seashell is to hold it up to their ears to listen for the sounds of the ocean. If you’ve ever tried this, you know that it works.大多数孩子在第一次捡起一个大贝壳时所做的事，就是把它举到耳朵那里，倾听海洋的声音。如果你试过，你就会知道。No matter how far you are from the ocean, it seems like you can hear the soothing sounds of ocean waves lapping up onto the beach when you hold a shell to your ear.无论你离海洋有多远，当你拿着贝壳捂住耳朵时，你似乎都能听到海浪拍打着海滩的舒缓声音。Obviously, the ocean isn’t inside the shell. So what exactly is it that you’re hearing? If not the ocean, what in the world is it?显然，海洋不在贝壳里边。那么你听到的到底是什么呢？如果不是海洋，那它到底是什么呢？One popularmyth that many people believe is that, what you’re really hearing is the echo of the blood pumping through the blood vessels in your head. It sounds believable, but scientists have proved that the echo of pumping blood is not what you’re hearing.许多人相信的一个流行的神话是，你其实听到的是血液流过你头部血管的回声。这听起来可信，但科学家已经证实，你听到的不是血流的回声。Others believe what you hear is the sound of air flowing through the shell. Scientists have disproved this theory, too, though.其他人则认为，你所听到的是空气流过贝壳的声音。不过，科学家们也反驳了这一理论。When tested in a soundproof room—where there’s still air flowing—shells don’t produce the same “ocean” sound.当在一个隔音的房间里进行测试时，当那里仍然有空气流动时，贝壳不会产生同样的“海洋”声音。So what is that sound you hear?Scientists believe the most likely answer is that it’s the echo of the noise in the air around you. They call this ambient noise. The seashell captures the ambient noise, which then resonates inside the shell.科学家们认为，最有可能的答案是，这是你周围空气中的噪音的回声。他们称之为外界噪声。贝壳会捕捉到周围的噪音，然后在贝壳内部产生共鸣。Depending upon the size and type of shell you listen to, different frequencies of sound will be echoed back to your ear. This leads to different shells making different “ocean” sounds. The best shells are large, spiral conch shells.根据你听的贝壳的大小和类型，不同频率的声音会回响到你的耳朵里。这导致了不同的贝壳发出不同的“海洋”之声。最好的贝壳是大的螺旋形海螺壳。Would you believe you don’t even need a shell to hear the “ocean”? You can produce the same effect with an empty cup or simply by cupping your hand over your ear. You may want to try this in a noisy area. The more ambient noise there is around you, the louder the effect will be.你相信吗，你甚至不需要一个贝壳就能听到“海洋”？你可以用一个空杯子或者仅仅用你的手捂住耳朵来产生同样的效果。你可以去一个嘈杂的地方尝试一下。你周围的环境噪音越多，效果就会越强大。“拾万个Why”专门探究趣味学英语。这些双语文章可以作为亲子共学英语的资源，也会是孩子睡前有趣的阅读资料。我们还希望为买不到精美绘本和英文书的孩子们提供一份宝贵的精神食粮。
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