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.

    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.

Thousands of villages in the developing world have no telephones. They have no money to build telephone systems. A new kind of technology may help change this situation. I t reduces the cost of building and using telephone systems.
Traditional systems use wires to carry electrical signals from one telephone to another. The wires often cost much more than telephones. The new system is based on radio communication. Each telephone sends and receives signals through the air, but not through the wires. This reduces the cost greatly. The radio telephone gets their power from the sun.
Each is connected to a solar equipment that changes the sun’s energy into electricity. A battery stores the electricity until someone needs to make or receive a call. The telephone turns off by itself if the level of power in the battery falls too low. This prevents damage to the system. Each radio telephone is connected to a computer microprocessor. It rewards how many calls are sent and received. It controls the power supply.
The technology needs more study, but its new use of radio equipment sun power and computers may help start telephone ringing in the other parts of the world.
68. The radio telephone gets their power from_____.
A. the sun 　　　B. electricity 　　　C. battery 　　　D. a special equipment
69. Each telephone is connected to_____.
A. a solar equipment 　　　　　　　B. a radio machine
C. a computer microprocessor 　　　D. Both A and C
70. From the passage we can infer that_____.
A. the new telephone system costs less than before
B. we can not use the radio as before
C. the new telephone system will take the place of the old one
D. it will be much easier to radio from now on
71. The main idea of the passage is_____.
A. a simple telephone system has been invented and costs less money
B. thousands of villages will use the new telephone system very soon
C. traditional telephone system will become useless
D. the new system will be too good to use

Thousands of villages in the developing world have no telephones. They have no money to build telephone systems. A new kind of technology may help change this situation. I t reduces the cost of building and using telephone systems.

Traditional systems use wires to carry electrical signals from one telephone to another. The wires often cost much more than telephones. The new system is based on radio communication. Each telephone sends and receives signals through the air, but not through the wires. This reduces the cost greatly. The radio telephone gets their power from the sun.

Each is connected to a solar equipment that changes the sun’s energy into electricity. A battery stores the electricity until someone needs to make or receive a call. The telephone turns off by itself if the level of power in the battery falls too low. This prevents damage to the system. Each radio telephone is connected to a computer microprocessor. It rewards how many calls are sent and received. It controls the power supply.

The technology needs more study, but its new use of radio equipment sun power and computers may help start telephone ringing in the other parts of the world.

68. The radio telephone gets their power from_____.

A. the sun 　　　B. electricity 　　　C. battery 　　　D. a special equipment

69. Each telephone is connected to_____.

A. a solar equipment 　　　　　　　B. a radio machine

C. a computer microprocessor 　　　D. Both A and C

70. From the passage we can infer that_____.

A. the new telephone system costs less than before

B. we can not use the radio as before

C. the new telephone system will take the place of the old one

D. it will be much easier to radio from now on

71. The main idea of the passage is_____.

A. a simple telephone system has been invented and costs less money

B. thousands of villages will use the new telephone system very soon

C. traditional telephone system will become useless

D. the new system will be too good to use

When a Swedish ship that sank（沉） 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(考古)-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 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?