In the galley, electricity is used for heating and cooking for safety reasons.

Many deaths from home fires are the result of burns and panic, but most are caused by deadly smoke and gases. These fatal fires are often caused by such careless acts as throwing away a lighted match or cigarette, allowing rubbish to pile up, overloading electrical wires, or misuse of heating and cooking equipment.

Few families go to bed at night without first checking to make sure that the doors and windows are locked, but they overlook a very basic fire safety rule. This rule states that people should sleep with their bedroom doors closed. Nighttime fires are most serious because the family is asleep and the discovery of fire is usually too late.

A closed bedroom door gives extra protection by delaying the gases and fire, thus giving the family a few minutes to escape.

At the first sight of fire in a home, it is necessary for everyone to get out of the house, especially children and elderly persons who may need help.

Not everyone flees(逃跑) quickly from a burning home. Children often panic and hide in closets or under beds. Being prepared or knowing what to do in case fire breaks out can mean the difference between life and death. All members of the family should know certain basic steps.

Everyone should know an escape route and second route from each room in the house. Very young children and old persons should receive careful thought when mapping out(制订) family escape plans. Both groups will need special help in escaping from home fires. A family 'should deter mine a way in which any members can sound an alarm. It is likely that fire may block hallways and prevent a person from reaching other bedrooms. Family members should be taught not to waste time getting dressed or collecting valuable possessions. Speed is necessary in escaping from fire.

Most deaths from fire are caused by ______.

A．burns

B．fright

C．deadly smoke and gases

D．panic

Task 2

Directions: This task is the same as Task 1. The 5 questions or unfinished statements are numbered 41 through 45.

Many deaths from home fires are the result of burns and panic, but most are caused by deadly smoke and gases. These fatal fires are often caused by such careless acts as throwing away a lighted match or cigarette, allowing rubbish to pile up, overloading electrical wires, or misuse of heating and cooking equipment.

Few families go to bed at night without first checking to make sure that the doors and windows are locked, but they overlook a very basic fire safety rule. This rule states that people should sleep with their bedroom doors closed. Nighttime fires are most serious because the family is asleep and the discovery of fire is usually too late.

A closed bedroom door gives extra protection by delaying the gases and fire, thus giving the family a few minutes to escape.

At the first sight of fire in a home, it is necessary for everyone to get out of the house, especially children and elderly persons who may need help.

Not everyone flees(逃跑) quickly from a burning home. Children often panic and hide in closets or under beds. Being prepared or knowing what to do in case fire breaks out can mean the difference between life and death. All members of the family should know certain basic steps.

Everyone should know an escape route and second route from each room in the house. Very young children and old persons should receive careful thought when mapping out(制订) family escape plans. Both groups will need special help in escaping from home fires. A family 'should deter mine a way in which any members can sound an alarm. It is likely that fire may block hallways and prevent a person from reaching other bedrooms. Family members should be taught not to waste time getting dressed or collecting valuable possessions. Speed is necessary in escaping from fire.

Most deaths from fire are caused by ______.

A．burns

B．fright

C．deadly smoke and gases

D．panic

Which of the following statements is true?

A．Solar energy can be used for heating, washing, cooking and lighting.

B．Solar energy can only be used in a passive role now.

C．Solar energy can be fed directly into the national electricity grid.

D．Solar energy can become America's greatest property one day.

SECTION B PASSAGES

Directions: In this section, you will hear several passages. Listen to the passages carefully and then answer the questions that follow.

听力原文： The Stone Age was a period of history which began in approximately 2 million B.C. and lasted until 3000 B.C. Its name was derived from the stone tools and weapons that modern scientists found. This period was divided into Paleolithic, Mesolithic, and Neolithic Ages. During the first period (2 million to 8000 B. C. ), the first hatchet and use of fire for heating and cooking were developed. As a result of the Ice Age, which evolved about 1 million years into the Paleolithic Age, people were forced to seek shelter in eaves, wear clothing and developed new tools.

During the Mesolithic Age (8000 to 6000 B. C. ) people made crude pottery and the first fish hooks, took dogs hunting, and developed a bow and arrow which was used until the fourteenth century A. D.

The Neolithic Age (6000 to 3000 B. C. ) saw humankind domesticating sheep, goats, pigs, and cattle, being less nomadic than in previous eras, establishing permanent settlements and creating governments.

The speaker states that the Stone Age was so named because ______.

A．it was very durable

B．the tools and weapons were made of stone

C．there was little vegetation

D．the people lived in caves