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Throughout seafaring history, ships and sailors have been lost to storms, accidents and war. Until recently, most of these ships were weak wooden sailing vessel (船只), their skeletons(骨架) quickly eaten away by sea creatures. Now, large vessels made of steel float on the seas. Thousands of these huge ships have been lost in times of war and in times of peace.
The bones of great metal ships, unlike the wooden vessels of old, survive the destruction of the sea long enough to become home and harbor for underwater life of all kinds. Shipwrecks(残骸) often provide the only hard surface and structure at the sandy bottom of the sea, something many sea creatures need.
The ship has been underwater for only five days. Its surface is still clean. Six weeks later, the wreck is covered with a slimy layer of algae(海藻), but it is still recognizable as a ship. Soon, animals that need to attach themselves to a hard surface, like the feather duster worms, make the wreck their home.
In warm waters, coral polyps(珊瑚虫) settle on the wreck and begin the process of building a rock-like crust on the ship. Small fish are attracted on all of these creatures. Larger fish come to feed on these small fish that hide in the wreckage. Eventually, the largest animals are attracted to the rich life on the shipwreck.
Shipwrecks give us valuable information about how sea plants and animals develop. We know exactly how long this wreck has been under water and how long sea life has been growing on it. Yet even the strongest steel shipwreck will finally be destroyed by the flows of water. But long after this wreck has been broken apart, it will still act as a reef (礁石). Layer upon layer of sea life has formed a structure that is now more natural than artificial, and will remain an island of life under the sea.
【小题1】Which of the following is NOT TRUE about shipwrecks?

A.Most ships in ancient times sank easily and become shipwrecks.
B.Shipwrecks, for scientists, are worth researching to get valuable information.
C.The skeletons of old wooden shipwrecks will exist for quite a long time.
D.Some sea animals tend to seek food on the shipwrecks.
【小题2】The writer’s purpose in writing the article is to tell us_____.
A.the differences between the ancient vessels and the modern ones
B.how the ships become shipwrecks at sea
C.how coral polyps live on the wreck in warm waters
D.the value of studying shipwrecks at the bottom of the sea
【小题3】Which of the following is closer to the underlined “crust”?
A.a hard outer coveringB.the skin of a rock
C.a hole in a shipD.a small house
【小题4】What will happen to shipwrecks in the end?
A.They will be pulled out of the sea for research.
B.They are likely to disappear and form reefs.
C.They will become an island under the sea.
D.They will be like works of art.


【小题1】C
【小题2】D
【小题3】A
【小题4】B

解析试题分析:本文讲述船只沉入海底,残骸经过漫长的年代,最终变成各种海洋生物的家园和避风港,是现成的人工礁石,船只残骸为我们提供了极有价值的信息,让我们了解海洋动植物的生长情况。
【小题1】从第一段第二三行可知直到不久前,大多数船只还是脆弱的木质帆船,它们的骨架很快就被海洋生物侵蚀殆尽,由此可知C答案错误在exist for quite a long time
【小题2】从文章最后一段结合全文可知船只残骸为我们提供了极有价值的信息,让我们了解海洋动植物的生长情况,所以作者的写作意图是告诉我们研究海底船只残骸的意义。
【小题3】词义猜测题。从前句begin the process of building a rock可知珊瑚虫居住在残骸上,开始在船身表面修筑如岩石般坚硬的外壳,故选A
【小题4】从最后一段Yet even the strongest steel shipwreck will finally be destroyed by the flows of water. But long after this wreck has been broken apart, it will still act as a reef 说明残骸最终会水流和侵蚀摧毁或形成礁石
考点:说明文
点评:本文陈述船只残骸变成人工礁石的过程,从而为我们提供了极有价值的信息,让我们了解海洋动植物的生长情况。文章内容较复杂,抽象。阅读中要注意体会残骸变成人工礁石的过程,多读几遍,然后再完成阅读。本文集中考查主旨大意题,词义猜测题,推理题,对于考生在上下文中理解字里行间的能力要求较高。

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