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  To extinguish(熄)different kinds of fires, several types of fire extinguishers(滅火器)have been invented.They must be ready for immediate use when fire breaks out.Most portable(手提式的)kinds operate for less than a minute, so they are useful only on small fires.The law requires ships, trains, buses and planes to carry extinguishers.

  Since fuel, oxygen(氧氣)and heat must be present for fire to exist, one or more of these things must be removed or reduced to extinguish a fire.If the heat is reduced by cooling the material below a certain temperature, the fire goes out.Water is the best cooling material because it is low in cost and easy to get.

  Another method of extinguishing fire is by cutting off the oxygen.This is usually done by covering the fire with sand, steam or some other things.A blanket(毯子)may be used to cover a small fire.

  A third method is called separation, which includes removing the fuel, or material easy to burn, from a fire, so that it can find no fuel.

  The method that is used to put out a fire depends on the type of fire.Fires have been divided into three classes.Fires in wood, paper, cloth and the like are called C1ass A fires.These materials usually help keep the fire on.Such fires can be stopped most easily by cooling with water.

(1)

If a fire breaks out on a bus, which of the following should be ready there for you to use?

[  ]

A.

Sand

B.

Water

C.

A blanket

D.

An extinguisher

(2)

To cover a small piece of burning wood with a basin(盆)in order to stop the fire is aft example of ________

[  ]

A.

separating the fire

B.

reducing the heat

C.

removing the fuel

D.

cutting off the oxygen

(3)

In choosing how to put out a fire, we should first be clear about ________

[  ]

A.

when it breaks out

B.

how it comes about

C.

what kind it is

D.

where it takes place

(4)

What would the writer probably discuss in the next paragraph?

[  ]

A.

Another class of fire.

B.

Another type of extinguishers.

C.

How fires break out.

D.

How fires can be prevented.

答案:1.D;2.D;3.C;4.A;
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  New York , May 25?   Millions of volunteers (志愿者)joined in a long chain spreading 4 125 miles across the world's richest nation Sunday and burst into songs , reaching the highest development in the Hands Across America road to raise 50 million for the nation's homeless and hungry.

  

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  The chain was not unbroken some gaps were planned for safety, others opened where there were not enough people to cover the ground. But along most of the route, the healthy joined the sick, beautiful film stars , homeless beggars , wealthy artists , poor children and President and Mrs Regan all took places in the long line.

  

  

1.What is the main idea of the passage?

  

[  ]

     

A.Millions of volunteers support the poor.

     

B.The longest line is waiting for support.

     

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D.The richest nation faces the problem.        

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  New York , May 25?   Millions of volunteers (志愿者)joined in a long chain spreading 4 125 miles across the world's richest nation Sunday and burst into songs , reaching the highest development in the Hands Across America road to raise 50 million for the nation's homeless and hungry.

  

  The chain began with a 6-year-old homeless girl named Amy in New York's Buttery Park. It spread across 16 states and Washington, D.C. where it crossed the White House   to the Queen Mary's port in California. The last people in the line were Bill and Mary Jones and their five small children, who lived in a family shelter (收容所) for the homeless in Venice, California.

  

  The chain was not unbroken some gaps were planned for safety, others opened where there were not enough people to cover the ground. But along most of the route, the healthy joined the sick, beautiful film stars , homeless beggars , wealthy artists , poor children and President and Mrs Regan all took places in the long line.

  

  

1.What is the main idea of the passage?

  

[  ]

     

A.Millions of volunteers support the poor.

     

B.The longest line is waiting for support.

     

C.The homeless and poor need help.

     

D.The richest nation faces the problem.        

2.The underlined word “raise” in the first paragraph means _______.

  

[  ]

                          
  

A.try to lift

  

B.manage to collect

  

C.bring up

  

D.join up

        

3.From the article, we know that the volunteers were made up of ________.

  

[  ]

        

A.both the homeless and the poor

  

B.the government officials, including President Regan

  

C.people in every field

  

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[  ]

                          
  

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B.They were in good order.

  

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5.Although the United States is a developed country, ________.

  

[  ]

        

A.there is still a rebellion sometimes.

  

B.there is still many people waiting for jobs

  

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ISC(HS)Reference No.S006864            New South Wales

Student Date of Birth:19/08/1988   Department of Education and Training

                     International Students Centre

Hong Xue              827-839 George Street PO Box 707

60 Waratah Street                Broadway NSW 21007

Croydon Park NSW 2133       Phone:(612)9217 4801 1300 302 456

                        Fax:(612)9212 6721

                 http://www.tafensw.edu.au/international/

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Dear Hong Xue,

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 。璦 parent

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A.

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[  ]

A.

He is under 18 and studies in Australia with his parents.

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He is required to come home every night according to the rules.

C.

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D.

His student Visa has been cancelled.

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To which address should the recipient reply if he feels like answering the letter?

[  ]

A.

Hong Xue at 60 Waratah Street, Croydon Park NSW 2133.

B.

Tracey Carlon at the Department of Immigration and Multicultural and Indigenous Affairs.

C.

Hong Xue at NSW Department of Education and Training.

D.

Tracey Carlon at 827-839 George Street, PO Box 707, Broadway NSW 21007.

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A.

Part-time Job

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Payment for House Work

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[  ]

A.

show that children should be paid for their housework

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show that children should not be paid for their housework

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show a clever way of teaching children

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tell children how to spend their spare time

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A.

Clever

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Greedy

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Coldhearted

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Selfish

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From the last passage we know that ________

[  ]

A.

the boy got all the money he wanted

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