[解析]
(1)D.推理判断题。根据下文"Seashells are not special capsules that have stored the sounds of their native homes."(贝壳并不是用来储存家乡声音的特殊容器。)可知,上文所说的"…if you held a seashell up to your ear,you'd hear the ocean."(如果你把贝壳放在耳边,你就能听到海洋的声音)很可能不是真实的。"D.Now you probably know that this is not true.现在你可能知道这不是真的。"起承上启下的作用。故选D项。
(2)B.推理判断题。根据上文"But what exactly is that rushing sound you're hearing?"(但是你到底听到了什么急促的声音?)的提问,以及后文的回答可知,"B.The answer is less mystical.答案就不那么神秘了。"是对答案特点的描述。故选B项。
(3)C.推理判断题。根据下文"Other structures with openings,like empty bowls or bottles,can produce similar sounds."(其他有开口的结构,如空碗或空瓶,也能发出类似的声音。)以及上文对"贝壳回音"的介绍可知,其他有开口的结构和贝壳一样也能发出类似的声音。空格处用"This effect is not limited to shells."(这种效应不仅限于贝壳),合乎逻辑,语义通顺。故选C项。
(4)G.细节理解题。根据上文Vermeil教授所解释的这是 a phenomenon called "resonance."(一种叫做共振的现象)和下文"It says that you're hearing the sound of your own rushing blood in your body."(它说你听到的是你自己身体里奔腾的血液的声音。)可知,两种解释并不一致,故本段开头应该是"对于贝壳中的急促声音还有另外一种解释"。故选G项。
(5)F.推理判断题。根据上文Vermeil教授对"贝壳回声"的另一种解释,和下文"Actually,if you put a shell to your ear on the beach,the sounds you hear will include partly some ocean noises."( 事实上,如果你在海滩上把贝壳放在耳边,你听到的声音中会有一部分是海洋的声音。)可知,文章最后又回到了开头所说的"最初的神话传说"。故选F项。