An altimeter(高度計) is an instrument used in an airplane to tell the pilot how high he is flying. The altimeter used in most airplanes is a kind of barometer(氣壓計), which, like barometer found in ordinary homes, is a measuring instrument for air pressure. The weight of the atmosphere presses downwards everywhere. At sea level this pressure is more than 14 pounds on every square inch of the surface. The higher you go into the air, the lower the air pressure is. An altimeter measures this air pressure to show the altitude of the airplane, or, how high it is above sea level.

But the altimeter does not show how high the plane is above the ground. A plane might be flying at an altitude of 15,000 feet, but it would be only a thousand feet or so above the ground if the land in that area happened to be 14,000 feet above sea level. The pilot adjusts his altimeter to the actual sea-level pressure before leaving the airport and then corrects it in flight by new information given to him by radio. He flies high enough to be above any mountain he may pass on his course .The barometer altimeter is correct within about 300 feet.

Another kind of altimeter, the radio altimeter, makes use of radio reflection. It calculates the height of the flying plane by sending out electrical signals to the surface below and measuring the time required for them to bounce back(反彈). It is correct within 15 feet over water, but is not reliable over land. Big planes usually have both kinds of altimeter.

67. Which of the following diagrams gives the correct relationship between altimeters and barometers? (a----altimeters, b----barometers)

68. The following drawing shows a plane flying over a mountain. Which of the heights given in the drawing is given by the barometer altimeter in the plane at this moment?

69. Suppose a plane using a radio altimeter is flying 10,000 meters above highland which is 4,000 meters above sea level. What reading will be given by the altimeter?

   A.10,000meters.   B. 4,000meters.    C.14,000meters.    D. 6,000 meters.

70. Suppose a plane using both kinds of altimeters is flying over a mountainous area where the land rises and falls very abruptly (迅速地). The pilot keeps his plane steady at the same height. What kind of reading will you get on each of the altimeters?

   A. The readings on both altimeters will remain steady.

   B. The readings on both altimeters will rise and fall abruptly.

   C. The readings on the barometer altimeter will rise and fall abruptly, while that on the radio altimeter will remain steady.

   D. The readings on the radio altimeter will rise and fall abruptly, while that on the barometer altimeter will remain steady.

【小題1】C

【小題2】C

【小題3】A

【小題4】D

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The year was 1932．Amelia Earhart was flying alone from North America to England in a small single—engined aeroplane．At midnight, several hours after she had left Newfoundland, she ran into bad weather．To make things worse, her altimeter (高度表) failed and she didn't know how high she was flying．At night, and in a storm, a pilot is in great difficulty without an altimeter．At times, her plane nearly plunged (沖) into the sea.

    Just before dawn, there was further trouble．Amelia noticed flames (火焰) coming from the engine．Would she be able to reach land? There was nothing to do except to keep going and to hope.

    In the end, Amelia Earhart did reach Ireland, and for the courage she had shown, she was warmly welcomed in England and Europe．When she returned to the United States, she was honored by President Hoover at a special dinner in the White House．From that time on, Amelia Earhart was famous.

    What was so important about her flight? Amelia Earhart was the first woman to fly the Atlantic Ocean alone, and she had set a record of fourteen hours and fifty—six minutes.

    In the years that followed, Amelia Earhart made several flights across the United States, and on each occasion (時刻) she set a new record for flying time．Amelia Earhart made these flights to show that women had a place in aviation (航空) and that air travel was useful.

Which of the following statements is NOT the difficulty which Amelia Earhart met in her flight from north America to England?

     A．She was caught in a storm．       B．The altimeter went out of order.

     C．Her engine went wrong．         D．She lost her direction.

When Amelia Earhart saw flames coming from the engine, what did she do?

     A．She did nothing but pray for herself.

     B．She changed her direction and landed in Ireland.

     C．She continued flying.

     D．She lost hope of reaching land.

According to the passage, what was Amelia Earhart’s reason for making her flights?

     A．To set a new record for flying time.

     B．To be the first woman to fly around the world.

     C．To show that aviation was not just for men.

     D．To become famous in the world.

Which of the following statements was NOT mentioned?

     A．She was the first woman who succeeded in flying across the Atlantic Ocean alone.

     B．She showed great courage in overcoming the difficulties during the flight.

     C She was warmly welcomed in England, Europe and the United States.

     D．She made plans to fly around the world.

Which of the following would be the best title for the passage?

     A．Amelia Earhart—First Across the Atlantic.

     B．Amelia Earhart—Pioneer in Women’s Aviation.

     C．A New Record for Flying Time.

     D．A Dangerous Flight from North America to England.

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The year was 1932. Amelia Earhart was flying alone from North America to England in a small single-engined aeroplane. At midnight, several hours after she had left Newfoundland, she ran into bad weather. To make things worse, her altimeter (高度表) failed and she didn’t know how high she was flying. At night, and in a storm, a pilot is in great difficulty without an altimeter. At times, her plane nearly plunged (沖) into the sea.

    Just before dawn, there was further trouble. Amelia noticed flames (火焰) coming from the engine. Would she be able to reach land? There was nothing to do except keep going and hope.

    In the end, Amelia Earhart did reach Ireland, and for the courage she had shown, she was warmly welcomed in England and Europe. When she returned to the United States, she was honored by President Hoover at a special dinner in the White House. From that time on, Amelia Earhart was famous.

    What was so important about her flight? Amelia Earhart was the first woman to fly the Atlantic Ocean alone, and she had set a record of fourteen hours and fifty-six minutes.

    In the years that followed, Amelia Earhart made several flights across the United States, and on each occasion she set a new record for flying time. Amelia Earhart made these flights to show that women had a place in aviation (航空) and that air travel was useful.

Which of the following statements is NOT the difficulty which Amelia Earhart met in her flight from north America to England?

  A. She was caught in a storm.               B. The altimeter went out of order.

  C. Her engine went wrong.                 D. She lost her direction.

When Amelia Earhart saw flames coming from the engine, what did she do?

  A. She did nothing but pray for herself.

  B. She changed her direction and landed in Ireland.

  C. She continued flying.

  D. She lost hope of reaching land.

According to the passage, what was Amelia Earhart’s reason for making her flights?

  A. To set a new record for flying time.

  B. To be the first woman to fly around the world.

  C. To show that aviation was not just for men.

  D. To become famous in the world.

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  A. Amelia Earhart—First Across the Atlantic.

  B. Amelia Earhart—Pioneer in Women’s Aviation.

  C. A New Record for Flying Time.

  D. A Dangerous Flight from North America to England.

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The year was 1932. Amelia Earhart was flying alone from North America to England in a small single-engined aeroplane. At midnight, several hours after she had left Newfoundland, she ran into bad weather. To make things worse, her altimeter (高度表) failed and she didn't know how high she was flying. At night, and in a storm, a pilot is in great difficulty without an altimeter. At times. her plane nearly plunged (沖) into the sea.

      Just before dawn, there was further trouble. Amelia noticed flames coming from the engine. Would she be able to reach land? There was nothing to do except to keep going and to hope.

     In the end, Amelia Earhart did reach Ireland, and for the courage she had shown, she was warmly welcomed in England and Europe. When she retumed to the United States, she was honored by President Hoover at a special dinner in the White House. From that time on, Amelia Earhart was famous.

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     In the years that followed, Amelia Earhart made several flights across the United States, and on each occasion she set a new record for flying time. Amelia Earhart made these flights to show that women had a place in aviation (航空) and that air travel was useful.

1.Which of the following statements is NOT the difficulty which Amelia Earhart met in her flight from north America to England?

A. She was caught in a storm.

B. The altimeter went out of order.

C. Her engine went wrong.

D. She lost her direction.

2.When Amelia Earhart saw flames coming from the engine. what did she do?

A. She did nothing but pr ay for herself

B. She changed her direction and landed in Ireland.

C. She continued flying.

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3.According to the passage, what was Amelia Earhart's reason for making her flights?

A. To set a new record for flying time.

B. To be the first woman to fly around the world.

C. To show that aviation was not just for men.

D. To become famous in the world.

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A. She was the first woman who succeeded in flying across the Atlantic Oceanalone.

B. She showed great courage in overcoming the difficulties during the flight.

C She was warmly welcomed in England, Europe and the United States.

D. She made plans to fly around the world.

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A. Amelia Earhart-First Across the Atlantic.

B. Amelia Earhart-Pioneer in Women's Aviation.

C. A New Record for Flying Time.

D. A Dangerous Flight from North America to England.

 

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    In the end, Amelia Earhart did reach Ireland, and for the courage she had shown, she was warmly welcomed in England and Europe. When she returned to the United States, she was honored by President Hoover at a special dinner in the White House. From that time on, Amelia Earhart was famous.

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   A. She was caught in a storm.               B. The altimeter went out of order.

   C. Her engine went wrong.                 D. She lost her direction.

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   B. To be the first woman to fly around the world.

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   D. To become famous in the world.

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   A. She was the first woman who succeeded in flying across the Atlantic Ocean alone.

   B. She showed great courage in overcoming the difficulties during the flight.

   C She was warmly welcomed in England, Europe and the United States.

   D. She made plans to fly around the world.

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   A. Amelia Earhart—First Across the Atlantic.

   B. Amelia Earhart—Pioneer in Women’s Aviation.

   C. A New Record for Flying Time.

   D. A Dangerous Flight from North America to England.

 

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The year was 1932. Amelia Earhart was flying alone from North America to England in a small single-engined aeroplane. At midnight, several hours after she had left Newfoundland, she ran into bad weather. To make things worse, her altimeter (高度表) failed and she didn’t know how high she was flying. At night, and in a storm, a pilot is in great difficulty without an altimeter. At times, her plane nearly plunged (沖) into the sea.

    Just before dawn, there was further trouble. Amelia noticed flames (火焰) coming from the engine. Would she be able to reach land? There was nothing to do except keep going and hope.

    In the end, Amelia Earhart did reach Ireland, and for the courage she had shown, she was warmly welcomed in England and Europe. When she returned to the United States, she was honored by President Hoover at a special dinner in the White House. From that time on, Amelia Earhart was famous.

    What was so important about her flight? Amelia Earhart was the first woman to fly the Atlantic Ocean alone, and she had set a record of fourteen hours and fifty-six minutes.

    In the years that followed, Amelia Earhart made several flights across the United States, and on each occasion she set a new record for flying time. Amelia Earhart made these flights to show that women had a place in aviation (航空) and that air travel was useful.

1.Which of the following statements is NOT the difficulty which Amelia Earhart met in her flight from north America to England?

  A. She was caught in a storm.               B. The altimeter went out of order.

  C. Her engine went wrong.                 D. She lost her direction.

2. When Amelia Earhart saw flames coming from the engine, what did she do?

  A. She did nothing but pray for herself.

  B. She changed her direction and landed in Ireland.

  C. She continued flying.

  D. She lost hope of reaching land.

3.According to the passage, what was Amelia Earhart’s reason for making her flights?

  A. To set a new record for flying time.

  B. To be the first woman to fly around the world.

  C. To show that aviation was not just for men.

  D. To become famous in the world.

4.Which of the following would be the best title for the passage?

  A. Amelia Earhart—First Across the Atlantic.

  B. Amelia Earhart—Pioneer in Women’s Aviation.

  C. A New Record for Flying Time.

  D. A Dangerous Flight from North America to England.

 

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