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B
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(殘骸), underwater archaeologists have made more exciting discoveries such as the 5,000-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’s 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 (挖掘機)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.
59.What purpose does Paragraph 1 serve in the passage?
A.To provide background information of the topic.
B.To attract readers’ attention to the topic.
C.To use an example to support the topic.
D.To offer basic knowledge of the topic.
60.The aim of underwater archaeology is to___________.
A.exploit water bodies
B.search for underwater life
C.study underwater artifacts
D.examine underwater environment
61.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
62.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.


59---62  BCDA

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科目:高中英語 來源:吉林省長春市十一高中2009-2010學年度高二下學期階段性考試 題型:閱讀理解


B
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Researchers have now come up with some new ideas. Their work may give people the ability to re-grow lost limbs. The researchers started with two simple experiments:when you cut a newt’s leg at the ankle, only the foot grows back;when you cut off a leg at the very end, the whole leg grows back. In both cases, the re-growth begins with stem cells. Stem cells can develop into nearly any type of cell in the body.
How do a newt’s stem cells know when to grow only a foot and when to re-grow a whole leg?
This question relates to another mystery. In newt’s, a cut-off leg will grow back only if the nerve bundle(神經束)in it also grows back , but if something prevents the nerve bundle from growing, the stem cells at the wound won’t re-grow a new leg.
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科目:高中英語 來源:廣東省執信中學2009-2010學年度高二下學期期中考試 題型:閱讀理解


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科目:高中英語 來源:重慶市萬州二中09-10學年度高二下學期期中考試(英語) 題型:閱讀理解


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科目:高中英語 來源:2010年高考英語試題分類匯編——社會文化閱讀理解 題型:閱讀理解

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