Can you imagine traveling to work in a one-man submarine?

Scientists believe that someday one-man submarines will be as numerous as automobiles today. One says," One day soon, men will walk on the ocean floor as they do on the street. " Perhaps during your life time, people will travel, work and live under the sea.

  Ships carrying oil and articles of trade will move beneath the ocean. Passenger ships will be built to travel underwater, where storms cannot delay them or make people seasick. Special underwater ships will be designed for mining, fishing, and exploring unknown areas. For military use, there may be submarines that can fly and then dive underwater to approach the battle area without being seen.

   First, however, the human problems associated with living in the ocean will need to be studied in detail. Many of these problems are the same as the problems of living in outer space: pressure, lack of oxygen, and weightlessness. Already scientists have begun to study these problems.

    In 1963 and 1964 scientists and Navy divers lived and worked underwater for several days in two projects which were called Sealab I and Sealab II. The Sealab II experiment kept the scientists and divers 215 feet below the surface for thirty days, studying marine biology, temperature, pressure, currents, and ocean bottom geology.

   Many puzzling questions remain unanswered, however. Man's warm blood makes it difficult for him to live long in the sea without some kind of warmth. Can our blood be changed to fit new water surroundings? What will happen to our muscles if we live in the water very long? Will they become soft away from our usual land existence? Will bones become weak and our blood pressure change? Scientists are searching for answers.

   By studying plants and animals deep in the ocean, scientists may find a cure for some of our most serious human diseases. We may learn to use plants to increase our world food supply. Engineers may learn to use the power of the sea by building huge walls to catch the force of the tides.

56. In the passage, the author is talking to us about the problems of ________

   A. pressure, lack of oxygen, and weightlessness in the sea

   B. living, working below the ocean

   C. underwater submarine

   D. walking on the ocean floor

57. According to the author,in future,passenger ships might be the ones that can ________

    A. be used for mining, fishing and exploring unknown areas

    B. carry oil and articles of trade

    C. travel underwater, not affected by storm

    D. fly and then dive underwater

58. Whether we live in the sea or in outer space, first of all we should think of_______

    A. health and food                  B. safety and temperature

    C. temperature and oxygen      D. pressure, oxygen and gravity

59. Which of the following is TRUE?

    A. Sealab I worked for more than thirty days below the surface.

    B. Sealab II worked for thirty days under the sea for exploring unknown areas.

    C. Sealab II kept the scientists over 200 feet below the surface, studying temperature, pressure and so on.

    D. Sealab I and Sealab II kept the scientists 215 feet below the surface for thirty days.

60. To become used to living in the sea, we should try to __

A. increase the amount of our blood         

B. keep our blood warm

C. soften our muscles                     

D. warm our bones

Fire fighting is a serious matter. Knowing what to do during a fire can save people’s lives. It is important to know the ways you can use and show them to everyone else in the family, such as stairways and emergency exits, but not elevators（电梯）.

From the lower floors of buildings, escape through windows is possible. Learn the best way to get out from a window with the least chance of serious injury.

The second floor window is usually not very high from the ground. An average person, hanging by the fingertips will have a drop of about 6 feet to the ground. It is about the height of an average man. Of course, it is safer to jump a short way down than to stay in a burning building.

Windows are also useful when you are waiting for help. Be sure to keep the door closed before opening the window. Otherwise, smoke and fire may be drawn into the room. Keep your head low at the window to be sure you get fresh air rather than smoke that may have leaked into the room.

On the second or third floor, the best windows for escape are those which open onto a roof. From the roof a person can drop to the ground more safely. Dropping onto cement might end in injury. Bushes and trees can help you to have a soft landing.

1. Which of the following should not be used when trying to escape from a fire?

A. windows       B. elevators        C. fire exits        D. stairways

2. How far from the ground is the second floor window?

A. about 12 feet                        B. about 6 feet

C. about the height of an average man          D. nearly 10 feet

3. According to the passage, windows are _______ of escaping a fire.

A. the only way                        B. the best way

C. safer than any other ways              D. one of the possible ways

4. The writer suggests that ________.

A. breathing in smoke might be harmful

B. smoke will enter the room through an open window

C. fresh air can’t reach the second floor window

D. to keep you head low will help to escape a fire

5. If you are on the second or third floor when a fire breaks out, you’d better ______.

A. drop directly onto the ground

B. first drop onto a roof then onto the cement

C. drop from a roof window then onto bushes or trees

D. drop onto the cement rather than bushes and grass

阅读下列短文，从每题所给的四个选项(A、B、C、D)中，选出最佳选项。

　　What to do if a fire starts？

　　Imagine it's late at night．You hear the smoke detectors go off．You smell smoke when you wake up．Do you know what to do？

　　If a fire starts in your home，remember your escape plan and leave as quickly as possible．Keep the following things in mind to make a safe escape．

　　●Call“Fire！” to warn everyone in your family．

　　●If you know where the fire is，close as many doors as possible between。you and the fire．

　　●If you're in bed，roll out of bed and onto the floor．Crawl on the floor next to a wall．Being near the ground makes it easier to breathe．If possible，cover your mouth and nose with a wet cloth．

　　●Feel the entire of a door before you open it ．If the door it．If the door is warm or hot, do not open it．The fire is probably right outs outside your room．Find another way to leave the room．If the door is cool，open it a little．

　　●look out and try to see the fire．If It is safe，leave the room．Remember to stay on the floor．

　　●If your clothes catch fire，stop immediately．Drop to the ground and roll．Remember；Stop，drop and roll．

　　●Call the fire department from outside and wait for help to arrive．

1．What is the first thing you should do if a fire starts in your home？

[　　]

A．Call the fire department．

B．Call“Fire” to warn your family members．

C．Collect your favorite belongings to save from the burning house．

D．Have a white sheet from a window to let the fire department know where to go．

2．what should you do if a fire starts and you are in bed？

[　　]

A．Jump out of bed and run away．

B．Roll out of bed and stand on the floor．

C．Stay in bed and then jump out of the window．

D．Roll out of bed and onto the floor．

3．What is not true according to the passage？

[　　]

A．Never go back into a burning building．

B．If your clothes catch fire，stop moving immediately．

C．You should call the fire department before you leave the burning building．

D．Cover your mouth and nose with a wet cloth if possible．

第三部分：阅读理解（共15小题，每题2分，满分30分）
请认真阅读下列短文，从短文后各题所给的四个选项（A、B、C和D）中，选出最佳选项,并在答题卡上将该项涂黑。
A
What to do if a fire starts?
　　Imagine it’s late at night. You hear the smoke detectors go off. You smell smoke when you wake up. Do you know what to do?
　　If a fire starts in your home, remember your escape plan and leave as quickly as possible. Keep the following things in mind to make a safe escape.
　　●Call“Fire!”to warn everyone in your family.
　　●If you know where the fire is, close as many doors as possible between you and the fire.
　　●If you’re in bed, roll out of bed and onto the floor. Crawl on the floor next to a wall. Being near the ground makes it easier to breathe. If possible, cover your mouth and nose with a wet cloth.
　　●Feel the entire surface of a door before you open it. If the door is warm or hot, do not open it. The fire is probably right outside your room. Find another way to leave the room. If the door is cool, open it a little.
　　●Look out and try to see the fire. If it is safe, leave the room. Remember to stay on the floor.
　　●If your clothes catch fire, stop immediately. Drop to the ground and roll. Remember: Stop, drop and roll.
　　●Call the fire department from outside and wait for help to arrive.
　56. What is the first thing you should do if a fire starts in your home?
　　A. Call the fire department.　　B. Call“Fire”to warn your family members.
　　C. Collect your favorite belongings to save from the burning house.
　　D. Have a white sheet from a window to let the fire department know where to go.
　57. What should you do if a fire starts and you are in bed?
　　A. Jump out of bed and run away.　　B. Roll out of bed and stand on the floor.
　　C. Stay in bed and then jump out of the window.　　D. Roll out of bed and onto the floor.
　58. What is not true according to the passage?
A. Never go back into a burning building.　
B. If your clothes catch fire, stop moving immediately.
　　C. You should call the fire department before you leave the burning building.
D. Cover your mouth and nose with a wet cloth if possible.

第三部分：阅读理解（共15小题，每题2分，满分30分）

请认真阅读下列短文，从短文后各题所给的四个选项（A、B、C和D）中，选出最佳选项,并在答题卡上将该项涂黑。

What to do if a fire starts?

　　Imagine it’s late at night. You hear the smoke detectors go off. You smell smoke when you wake up. Do you know what to do?

　　If a fire starts in your home, remember your escape plan and leave as quickly as possible. Keep the following things in mind to make a safe escape.

　　●Call“Fire!”to warn everyone in your family.

　　●If you know where the fire is, close as many doors as possible between you and the fire.

　　●If you’re in bed, roll out of bed and onto the floor. Crawl on the floor next to a wall. Being near the ground makes it easier to breathe. If possible, cover your mouth and nose with a wet cloth.

　　●Feel the entire surface of a door before you open it. If the door is warm or hot, do not open it. The fire is probably right outside your room. Find another way to leave the room. If the door is cool, open it a little.

　　●Look out and try to see the fire. If it is safe, leave the room. Remember to stay on the floor.

　　●If your clothes catch fire, stop immediately. Drop to the ground and roll. Remember: Stop, drop and roll.

　　●Call the fire department from outside and wait for help to arrive.

　56. What is the first thing you should do if a fire starts in your home?

　　A. Call the fire department.　　B. Call“Fire”to warn your family members.

　　C. Collect your favorite belongings to save from the burning house.

　　D. Have a white sheet from a window to let the fire department know where to go.

　57. What should you do if a fire starts and you are in bed?

　　A. Jump out of bed and run away.　　B. Roll out of bed and stand on the floor.

　　C. Stay in bed and then jump out of the window.　　D. Roll out of bed and onto the floor.

　58. What is not true according to the passage?

A. Never go back into a burning building.　

B. If your clothes catch fire, stop moving immediately.

　　C. You should call the fire department before you leave the burning building.

D. Cover your mouth and nose with a wet cloth if possible.