When a Swedish ship that sank in 1628 was recovered from the port of Stockholm, historians and scientists were overjoyed with the chance to examine the remains of the past. The ship construction showed how ships were built and operated during the seventeenth century. In this way, artifacts, objects made by human beings, provided a picture of daily life almost 400 years ago.
Underwater archaeology the study of ships, aircraft and human settlements that have sunk under large bodies of water is really a product of the last 50 years. The rapid growth of this new area of study has occurred because of the invention of better diving equipment .Besides the Swedish ship wreck(残骸）,underwater archaeologists have made more exciting discoveries such as the 5000-year-old boats in the Mediterranean Sea.
Underwater archaeology can provide facts about the past. In ancient ports all over the world are ships sunken in the past 6,000 years. There are also sunken settlements in seas and lakes telling of people way of life and their systems of trade in ancient times. Underwater archaeologists want to study these objects to add to the world’s knowledge of history, but they have to fight two enemies. One enemy is treasure hunters who dive for ancient artifacts that they can sell to collectors. Once sold, these objects are lost to experts. The second enemy is dredging machines(挖掘机）often used to repair ports. These machines destroy wrecks and artifacts or bury them deeper under sand and mud. By teaching the public about the importance of underwater “museums” of the past, archaeologists are hoping to get support for laws to protect underwater treasures.
【小题1】What purpose does Paragraph 1 serve in the passage?A．To provide background information of the topicB．To attract readers’ attention to the topicC．To use an example to support the topicD．To offer basic knowledge of the topic【小题2】The aim of underwater archaeology is to .A．exploit water bodies B．search for underwater lifeC．study underwater artifacts D．examine underwater environment【小题3】Underwater archaeologists are worried because .A．sea hunters have better diving equipment B．their knowledge of world history is limited C．dredging machines cause damage to the ports D．sold artifacts can hardly be regained for research【小题4】What is the main purpose of the passage?A．To introduce a young branch of learning. B．To discuss the scientists’ problems. C．To explain people’s way of life in the past. D．To describe the sunken ships.B
网友回答
(答案→)B
解析：
【小题1】写作意图题：文章开头举了瑞士沉船的例子，是想吸引读者的注意力。这也是此类文章惯用的手法。选B。
【小题2】细节题：文章第二段的：Underwater archaeology the study of ships, aircraft and human settlements that have sunk under large bodies of water 这是对水底考古学的定义，也得出答案是C。
【小题3】细节题：从文章第三段的：Once sold, these objects are lost to experts.说明这些东西一旦被卖了，专家就再也得不到了，也就不能对它们进行研究了。选D。
【小题4】主旨题：文章第二、三段都重点谈的是：Underwater archaeology所以是介绍的一种新的学习分枝。选。A