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 abut 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 pelples 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.

1.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

2.The aim of underwater archaeology is to_________ .

   A. exploit water bodies              B. search for underwater life

C. study underwater artifacts            D. examine underwater environment

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

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.

　
E　　
As a result of pollution , Lake Erie , on the borders of the USA and Canada, is now without any living things.　　
Pollution in water is not simply a matter of “poisons” killing large numbers of fish overnight. Very often the effects of pollution are not noticed for many months or years because the first organism(生物体 ) to be affected are either plants or plankton. But these organisms are the food of fish and birds and other creatures. When this food disappears, the fish and birds die too. In this way a whole food chain can be wiped out, and it is not until dead fish and water birds are seen at the river’s edge or on the sea shore that people realize what is happening.　　
Where do the substances which pollute the water come form? There are two main sources sewage (污水) and industrial waste. As more detergent (洗涤剂 ) is used in the home, so more of it is finally put into our rivers. lakes and seas. Detergents harm water birds dissolving the natural substances which keep their feathers waterproof. Sewage itself, if not properly treated, makes the water dirty and prevents all forms of life in rivers and the sea from receiving the oxygen they need. Industrial waste is even more harmful since there are many highly poisonous things in it, such as copper and lead(铅 ).　　
So , if we want or stop this pollution , the answer is simple: sewage and industrial waste must be made clean before flowing into the water. It may already be too late to save some rivers and lakes, but others can still be saved if the correct action is taken at once.　　
72. Pollution in water is noticed _____. 　　
A. when the first organisms are affected    B. when a good many fish and birds die 　　
C. when poisonous things are poured into water      　　
D. as soon as the balance of nature is destroyed 　　
73. The living things die because there is no ____ in the lake or river.  　　
A. water          B. fish               C. poison           D. oxygen 　　
74. Which of the following is harmful according to the passage? 　　
A. Organisms                             B. Plants and plankton in the water     　　
C. Waste water from cleaning   D. Industrial waste made clear before flowing into the water 　　
75.The way to stop water pollution is _______.　　
A. realize the serious situation clearly 　　
B. put oxygen into the river 　　
C. make the waste material harmless before flowing into the water 　　
D. make special room in the sea for our rubbish　　

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.

1.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

2.The aim of underwater archaeology is to    .

A. exploit water bodies

B. search for underwater life 

C. study underwater artifacts

D. examine underwater environment

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

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.

People travel for a lot of reasons. Some tourists go to see battlefields or other historic remains. Others are looking for culture, or simply want to have their pictures taken in front of famous places. Most European tourists are looking for a sunny beach to lie on.

Northern Europeans are willing to pay a lot of money for the sun because they have so little of it. People of cities like London, Copenhagen and Amsterdam spend much of their winter in the dark because the days are so short, and much of the rest of the year in the rain . This is the reason why the Mediterranean has always attracted them. Every summer many people travel to Mediterranean resorts（度假胜地）and beaches for their vacation. They all come for the same reason: sun!

The huge crowds mean lots of money for the economics of Mediterranean countries. Italy's 30,000 hotels are booked  every  summer. And 13 million people camp put on French beaches, parks and roadsides. Spain's long sandy coastline attracts more people than anywhere else. 37 million tourists visit there yearly, or one tourist for each person living in Spain.

But there are signs that the area is getting more tourism than it can deal with. The Mediterranean is already one of the most polluted seas on earth. None of these,　however, is mining anyone's fun. Obviously, they don't go there for clean water. They allow traffic jams and seem to like crowded beaches. They don't even mind the pollution. No matter how dirty the water is, the coastline still looks beautiful. And as long as the sun shines, it's still better than sitting in the cold rain in Berlin, London, or Oslo.

The writer seems so imply that Europeans travel mostly for the reason that ________.

A. they want to see historic remains

B. they wish to escape from cold, dark and rainy days

C. they would like to take pictures in front of famous places

D. they are interested in different cultural and social customs

According to the passage, which of the following countries attracts more tourists than the others?

A. Italy　　　　 B. Greece.　　　　 C. France.　　　　 D. Spain.

The underlined part  "one tourist for each person living in Spain" means ________.

A. all the 37 million people living in Spain are tourist

B. every person living in Spain has to take care of a tourist

C. every year almost as many tourists visit Spain as there are people living in that country

D. every family in Spain is visited by a tourist every year

According to the passage, which of the following might ruin the tourists' fun at Mediterranean resorts and beaches?

A. Polluted water　　　 B. Crowded buses. 　　C. Rainy weather.　　　 D. Traffic jams.